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Stress induced intestinal barrier damage after traumatic brain injury significantly increases the risk of mortality in patients and seriously affects disease prognosis. However, the pathogenesis and treatment strategies are still not fully understood. This article aims to summarize the research progress on key issues such as the pathological mechanism and protective strategies of stress induced intestinal barrier damage in traumatic brain injury, it points out that increased permeability of intestinal epithelial cells, tight junctions, endoplasmic reticulum stress, autophagy, and ischemia-reperfusion injury may be the main mechanisms of intestinal barrier damage after traumatic brain injury. This article reviews the protective effects of vagus nerve stimulation, probiotics, exogenous supplementation of hunger hormone, and oxygen therapy on stress induced intestinal barrier damage after traumatic brain injury. This article will provide a new perspective and intervention targets for exploring precise and effective prevention and treatment of stress induced intestinal barrier damage after traumatic brain injury. [ABSTRACT FROM AUTHOR]

In September 2017, Changting seismic station installed VP broadband tiltmeter. From its operation in recent years, the instrument has a high degree of automation and observation accuracy, which can provide more reliable observation data for earthquake analysis and forecast. However, its stability is poor. The output zero drift of VP broadband tiltmeter is serious, which often need to zero. Although the automatic zero device has been added, which can achieve remote zero function through the network to avoid interference with the instrument due to personnel entering the hole, the zero module often failure including motor overload, chip burn out. In this paper, the common faults of the VP broadband tiltmeter in daily observation were analyzed to seek solutions to instrument failure, and summarize the VP broadband tiltmeter daily maintenance. We can quickly determine the cause of the instrument failure, timely complete the instrument maintenance, ensure continuous and reliable data in the future similar problems in the observation process.

Copyright of Journal of Hubei Open Vocational College is the property of Journal of Hubei Open Vocational College Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Notch signaling pathway plays an important role in cell development, differentiation, apoptosis, it also plays a broad regulatory role in immune diseases. The pathological features of rheumatoid arthritis （RA） include synovitis and pannus. Recurrent active RA can cause an imbalance between osteoblasts and osteoclasts, and ultimately lead to bone destruction. Studies have found that Notch signaling affects the proliferation and migration of synovial fibroblasts, the release of inflammatory factors from macrophages, angiogenesis, and bone destruction in active RA. It is an important target for RA treatment. This review summarizes the research progress of Notch signaling pathway in active RA in the past two decades. [ABSTRACT FROM AUTHOR]

Copyright of Ordnance Industry Automation is the property of Editorial Board for Ordnance Industry Automation and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Although progresses made in horizontal drilling have been very beneficial to the development of conventional and unconventional oil and gas, two factors related to the cleaning of drilled cuttings from the horizontal section of a well seriously hinder the drilling operation. One of the factors is borehole wall instability, and the other is the difficulties in wellbore cleaning. Inability to remove drilled cuttings from a wellbore in a timely manner often results in increases in friction and torque on the downhole drill string, and the frequency of pipe sticking, and the worse is the simultaneous occurrence of lost circulation. First in this paper, the causes of cuttings bed formation and technical parameters for field operation are analyzed and summarized from two aspects, which are hole cleaning mechanisms and the main factors affecting hole cleaning (mud rheology, pipe rotation, hole inclination, sizes of the drilled cuttings, mud weight and flowrate etc.). Second, the methods and mechanisms of cuttings removal were systematically elaborated from the drilling fluid technologies and hole cleaning tools available both in China and abroad to help deal with the difficulties in hole cleaning in deviated and horizontal drilling. Finally, the development direction for horizontal and deviated hole cleaning technology is prospected to provide a reference for the hole cleaning technology development in the future. [ABSTRACT FROM AUTHOR]

The construction technology of precast segment is of great significance in promoting green, low-carbon and sustainable development of bridge construction. In order to expand the application range of segmental prefabrication technology, it needs to be further researched and improved. According to the research results of prefabricated and assembled bridges at home and abroad, the research progresses of the overall performance evaluation of the bridge, joint design, key construction technology and simulation analysis are reviewed. The results show that researches are insufficient on such problems as structural adhesive aging and adhesive-concrete interface aging, uneven distribution of shear stress of key teeth, mechanical properties of joints under the combined action of bending, bending and shearing; researches are absent on the theory related to segmental precast bridge construction technology; and researches are few on the whole process of construction structure simulation and simulation analysis. In view of the problems existing in the research on segmental precast bridge technology, it is necessary to further improve the theoretical research on segmental precast bridge, formulate corresponding specifications, increase the research on key technology in design and construction, strengthen information management and realize the development of the whole life cycle, etc. [ABSTRACT FROM AUTHOR]

Accurate railway freight volume forecasting can improve the efficiency of railway freight organization and railway logistics planning. First of all, current researches on factors affecting railway freight volume are analyzed the and the changes in factors affecting railway freight volume under the new situation are discussed. Secondly, the methods applied in railway freight volume forecasting are divided into two categories: traditional forecasting methods based on statistics and intelligent forecasting methods based on machine learning, and their application analysis is carried out, focusing on the comparison and sorting of the improvement methods, improvement principle, improvement effects and applicable scenarios of intelligent prediction methods. The areas that need further research on railway freight volume forecasting are discussed from three aspects of the improvement of a single model in data preprocessing, parameter selection and structural optimization, the construction and improvement of combined forecasting models under the influence of uncertain and dynamic factors, and the realization of railway freight volume forecasting with massive, high-dimensional and heterogeneous data. Finally, based on the research status and development characteristics, the potential research hotspots and difficulties in railway freight volume forecasting are pointed out so as to provide a certain reference for railway freight organization and operation. [ABSTRACT FROM AUTHOR]

Copyright of Writing / Xiezuo is the property of Writing Magazine Agency, Wuhan University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Osteoporosis vertebral compression fracture ( OYCF ) is the most common serious complication of senile and postmenopausal osteoporosis patients. Fracture patients often have bone pain, vertebral body height reduction, and kyphosis Malformation and other clinical manifestations seriously affect the patient' s quality of life. Percutaneous vertebroplasty ( PVP), percutanous kyphoplasty ( PKP ) and mesh plasty ( vesselplasty ) are commonly used procedures for the treatment of OVCF. It has outstanding advantages in terms of body height, prevention of kyphosis, and relief of pain symptoms. However, there is the possibility of non-surgical vertebral fractures after vertebral plasty in OVCF patients, which not only affects the quality of surgery, but also has a great impact on patients' postoperative rehabilitation, quality of life, and economic burden. The recurrent fracture of the adjacent vertebrae after vertebroplasty is related to its own objective factors such as the process of osteoporosis, the initial fracture site and the number of fractures, as well as the surgical factors such as excessive recovery of postoperative vertebral body height, bone cement leakage, and excessive bone cement filling. In this paper, through reviewing recent literature reports on the risk factors and causes of non-surgical vertebral fractures after vertebral plasty in OVCF patients, we review the statistically validated risk factors that have statistical significance. Discussions are conducted in order to provide relevant references for clinically reducing the incidence of recurrent fractures after vertebroplasty in OVCF patients [ABSTRACT FROM AUTHOR]

Copyright of Nanning Zhiye Jishu Xueyuan Xuebao is the property of Nanning College for Vocational Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The formation and development of concepts of Hong Kong-style Chinese, community words and regional words were studied. The important research issues of vocabulary and grammar, such as word formation, coinage law, relationship of form and meaning, word-class shift and special sentence types, were analyzed. It is proposed that the future study of written Chinese in Hong Kong should conduct diachronic study and enhance the research comprehensiveness under the sociolinguistic theory. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Southern Yangtze University: Humanities & Social Sciences Edition is the property of Jiangnan Daxue and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Foreign Literature Studies is the property of Foreign Literature Studies and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Architecture & Civil Engineering is the property of Chang'an Daxue Zazhishe and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Chongkan Xiangjiao Pianhai （四声篇海），a proofread and reprinted book of Sisheng Pianhai （四声篇海），is a dictionary with high academic value but low attention. It follows Sisheng Pianhai （四声篇 海） in selecting words and arranging sections and making a model for Zihui （字汇） in phonetic notation and paraphrase, thus is of highly practical significance. But up to now， there have only been five papers on the dictionary can be found. In this study，the general information and compiling style of the dictionary as well as its comparison with Sisheng Pianhai （四声篇海） are summarized. It is concluded that although the previous studies fill the vacancy in the study of dictionaries，there is short of analysis on specific problems. [ABSTRACT FROM AUTHOR]

The classification of verbs is a key issue in the study of Chinese verbs. There are different standards, theories and methods for the classification of verbs. Since the 21st century, scholars have paid attention to the classification of Chinese verbs with wider vision and more scientific methods. They have made rich achievements. In this study, the classification of Chinese verbs in the 21st century is summarized. [ABSTRACT FROM AUTHOR]

Copyright of Engineering Mechanics / Gongcheng Lixue is the property of Engineering Mechanics Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Physical Education / Tiyu Xuekan is the property of Journal of Physical Education Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

許多研究顯示大意摘要能力是理解文章的基礎能力，更是讀書學習的必備能力，然而許多教師花費相當大的心力在大意摘要教學上，學生仍不得其要領。本研究的目的希冀運用互動電子白板所建構的數位化教學與學習的環境，並結合小組合作學習之優勢，以改進目前講授大意教學的模式，提升學生的參與感與專注力，進而增進學生之摘寫大意能力。而本研究採準實驗研究法之不等組前後測設計，以國小四年級四個班級的學生為研究對象，四個班級均接受不同教學方式，分別為互動電子白板與小組合作學習組、互動電子白板組、小組合作學習組以及對照組。研究分析以SPSS 軟體進行共變數分析，以驗證相關研究假設；此外，也透過教室觀察及文件記錄來蒐集資料，並訪談教師與學生，以便對研究成效加以補充、解釋與檢證。本研究結果發現： 1.不同教學方式與不同語文能力的學生在「摘寫課文大意能力」的表現上均有顯著差異。互動電子白板與小組合作學習組的學生優於小組合作學習組、互動電子白板組及一般教學組。而高能力學生優於中、低能力學生；中能力學生表現亦優於低能力學生。 2.教師與學生均認為互動電子白板與小組合作學習策略輔助摘寫課文大意可以幫助學生集中注意力、有效提升參與度和增進教學和學習效率。 最後，綜合以上研究結果，提出建議供教師實務教學以及未來研究者參考。 Reports both abroad and within the country showed that students found it difficult to summarize articles. The use of educational technology in improving the ability of student’s to create summaries was thus a critical issue. A high tech product, such as an Interactive WhiteBoard, had the potential to revolutionize the application of digital instruction and became an indispensible teaching tool. The researcher attempts to create a platform of learning by utilizing the Interactive WhiteBoard and combining it with a team cooperative learning strategy. It was the objective of this researcher to transform the traditional method of lecturing into a more modern and effective approach through the use of digital technology. The main objective was to motivate the students and got them more involved with the reading material and the creation of summaries. The methodology of this study was mainly based upon the nonequivalent pretest-posttest of the quasi-experimental design. The subjects of this study were four classes of fourth grade students. The conclusions of the experiment were as follows: 1.Group one （Interactive WhiteBoard and cooperative learning） advanced learning students and scored the highest out of all the groups in “summary evaluation scale” . 2.Teachers and students believed that Interactive WhiteBoard and cooperative learning strategy greatly improved the student’s concentration, efficiency, and effectiveness. Finally, the researcher explained how Interactive WhiteBoard and cooperative learning strategy could be integrated into language arts instruction lessons at the elementary school level. These ideas could be referenced by both instructors and researchers.

Studies on the syntactic function, semantics, as well as the study in the perspective of typology and grammaticalization of adverbs in northeast China dialect since 1980s are summarized. Besides, the hotspots and important issues in the study in recent 30 years are discussed. Finally, the tendency of the study is put forward. [ABSTRACT FROM AUTHOR]

Traditional mechanical fault diagonal methods using vibration metrics face many difficulties in the application of the wind turbine generator due to complicated operation environments. Therefore, in this paper, we adopt the innovative approach based on the technology of wireless sensor diagnosis. We investigate into how the electric current in the motor stator reacts to the mechanical faults from components such as gears and bearings by using advanced signal process and simulations techniques. This paper also summarizes some experience in how to preprocess the minor mechenical faults information and its feasibility as well as prospects in the fault diagnosis of wind turbine drive train system. [ABSTRACT FROM AUTHOR]

Since Reform and Opening up, researchers have discussed about the concepts and methods of news history. Their researches focus on two aspects, losting and dislocation on the body of its research, and the single and similar natures of its historical view. For solving these problems, the journalistic society put out 3 methods: deepening the connotation of its research, broadening its research vision, using its new methods. [ABSTRACT FROM AUTHOR]

Chinese onomatopoeia has been studied in five way at recent twenty years. Example: that is, character of onomatopoeia; part of speech and ascription; comparism in Chinese and other languages; peculiar books of onomatopoeia; research of Modern Chinese onomatopoeia. We should study its developing and evolution with connection ancient Chinese and modern Chinese. [ABSTRACT FROM AUTHOR]

Farmer cooperative organizations are regarded as a significant way to reform Chinese rural marketing system and to improve farmers' organizational process. Based on the summary of International Symposium on Institutional Arrangements and Legislative Issues of Farmer Cooperatives and in light of the background of globalization and marketing competition, farmer cooperatives are confronted with compounded challenges and opportunities. According to international experience, the profound issue of the development of cooperatives hinges upon achieving a balance between respecting and reforming of the cooperatives' essential characteristics. While farmer cooperative organizations in China are still in the initial phase of their developing process, the pressing issues to be attended to consist of enhancing the construction of the inner institution of cooperatives and accelerating the cooperative legislation progress, so as to promote their sound growth. [ABSTRACT FROM AUTHOR]