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Development of quality function development matrix to measure the quality management performance of contractor
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作者 章蓓蓓 《Journal of Chongqing University》 CAS 2012年第3期141-150,共10页
Quality function development (QFD) matrix was introduced as a tool to measure the quality management performance of contractors. Engineering quality, quality management system components, and their relationship were d... Quality function development (QFD) matrix was introduced as a tool to measure the quality management performance of contractors. Engineering quality, quality management system components, and their relationship were defined. An integrated engineering quality system was decomposed into seven factors and the quality management system was composed of eight factors. Importance weights of all factors and their relationship point were acquired by questionnaires and interviews. Then, QFD matrix was formulated and the calculating process was proposed. This model was verified on a case study. The result shows that it is useful for contractor in benchmarking themselves and invaluable for owners in the process of deciding contractor. 展开更多
关键词 quality function development matrix engineering quality quality management system quality performance
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The Function Development of Enterprise Business Administration under the New Situation
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作者 MA Jun 《外文科技期刊数据库(文摘版)经济管理》 2021年第8期013-016,共6页
Under the new situation, the business administration of enterprises involves more contents, which has greater influence on the development of enterprises in all aspects. Therefore, optimizing the development of its fu... Under the new situation, the business administration of enterprises involves more contents, which has greater influence on the development of enterprises in all aspects. Therefore, optimizing the development of its functions and making it continuously perfect is of positive significance to the future development of enterprises. Based on this, it is necessary for the management of the enterprise to comprehensively analyze many problems in the current business management of the enterprise, and on this basis to improve the business management system, norms and standards, to promote various business management work according to a more scientific process, and to create greater social and economic benefits for the enterprise. 展开更多
关键词 ENTERPRISE business administration functional development
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Development of a Functional Food Snack Product Utilizing Underexplored and Underutilized Ingredients: Spirulina Microalgae and Bilberry
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作者 Katelyn A. Boyle Martha Verghese 《Food and Nutrition Sciences》 CAS 2024年第10期974-990,共17页
Spirulina, a protein-rich cyanobacterium, and Bilberry, a dark berry, have the potential to be used as functional food ingredients in the food industry. These two underexplored and underutilized ingredients were used ... Spirulina, a protein-rich cyanobacterium, and Bilberry, a dark berry, have the potential to be used as functional food ingredients in the food industry. These two underexplored and underutilized ingredients were used to develop an adolescent-friendly functional snack food product in the light of food industry trends. Stages of product development, shelf life/physiochemical analysis (texture, pH, color, and water activity) and sensory evaluation were utilized in developing a functional snack mini muffin containing Spirulina and Bilberry. Aqueous (AQ) and 80% ethanol (ET) extracts of mini muffin formulations (chocolate, 1% Spirulina (S) + 4% Bilberry (B), 2% Spirulina (S) + 8% Bilberry (B)) were prepared using a standard protocol. Antioxidant potential was determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and Ferric Reducing Antioxidant Potential (FRAP) assays. Utilizing a 5-point hedonic scale (1—Dislike very much, 2—Dislike a little, 3—Neither like nor dislike, 4—Like a little, 5—Like very much), 3 mini muffin formulations (chocolate, 1% S + 4% B, 2% S +8% B), were tested among consumer panelists, with 1% S + 4% B being the most acceptable based on taste, texture, color, aroma, appearance, etc. Texture (post-peak (N) of the mini muffin did not vary between chocolate and 1 S% + 4% B formulations;however, 2% S + 8% B was 1.09 times higher compared to its counterparts. pH, color, and water activity remained constant over the 9-day shelf-life period. The Spirulina and Bilberry muffins developed exhibited antioxidant activities (highest in 2% S + 8% B), and were accepted by the sensory panelists for color, taste, mouthfeel, and aroma (panelists preferred 1% S + 4% B). 展开更多
关键词 SPIRULINA BILBERRY functional Food Product development Adolescents Mini Muffins Antioxidant
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Development of Mathematical Model on Preparation of Functionally Graded Material by Co-sedimentation 被引量:6
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作者 Zhongmin YANG, Lianmeng ZHANG and Qiang SHEN Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2001年第2期275-277,共3页
From the process of sedimentation the mathematical relationships among deposition Volume and powder properties as well as sedimentation parameters were deduced. Based on the formula a mathematical model was set up and... From the process of sedimentation the mathematical relationships among deposition Volume and powder properties as well as sedimentation parameters were deduced. Based on the formula a mathematical model was set up and simulated through the computer. At last the validity of mathematical model was supported by the representative experiment on Ti-Mo system FGM prepared by co-sedimentation. 展开更多
关键词 CO MO development of Mathematical Model on Preparation of functionally Graded Material by Co-sedimentation
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Cotton functional genomics reveals global insight into genome evolution and fiber development 被引量:2
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作者 Zhiguo Wu Yan Yang +3 位作者 Gai Huang Jing Lin Yuying Xia Yuxian Zhu 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2017年第11期511-518,共8页
Due to the economic value of natural textile fiber, cotton has attracted much research attention, which has led to the publication of two diploid genomes and two tetraploid genomes. These big data facilitate functiona... Due to the economic value of natural textile fiber, cotton has attracted much research attention, which has led to the publication of two diploid genomes and two tetraploid genomes. These big data facilitate functional genomic study in cotton, and allow researchers to investigate cotton genome structure, gene expression, and protein function on the global scale using high-throughput methods. In this review, we summarized recent studies of cotton genomes. Population genomic analyses revealed the domestication history of cultivated upland cotton and the roles of transposable elements in cotton genome evolution.Alternative splicing of cotton transcriptomes was evaluated genome-widely. Several important gene families like MYC, NAC, Sus and GhPLDal were systematically identified and classified based on genetic structure and biological function. High-throughput proteomics also unraveled the key functional proteins correlated with fiber development. Functional genomic studies have provided unprecedented insights into global-scale methods for cotton research. 展开更多
关键词 Cotton functional genomics Genome evolution Fiber development
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Developmental dependence for functional eye regrowth in Xenopus laevis
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作者 Cindy X.Kha Kelly Ai-Sun Tseng 《Neural Regeneration Research》 SCIE CAS CSCD 2018年第10期1735-1737,共3页
Introduction:A key challenge in designing tissue repair strategies is knowing whether and how developmental mechanisms are used for successful repair of mature/adult tissues.Although it is known that developmental co... Introduction:A key challenge in designing tissue repair strategies is knowing whether and how developmental mechanisms are used for successful repair of mature/adult tissues.Although it is known that developmental components are used in repair,it remains mostly unclear which ones are required and whether they act similarly as during development.This issue is further complicated by the fact that it is difficult. 展开更多
关键词 developmental dependence for functional eye regrowth in Xenopus laevis FIGURE RI
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Cloning GhSCFP Gene and Its Function in Cotton Fiber Development
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作者 HOU Lei,YANG Xia,LIU Hao,LI Jia-bao,PEI Yan(Key Laboratory of Biotechnology and Crop Quality Improvement,Ministry of Agriculture Biotechnology Research Center,Southwest University,Chongqing 400716,China) 《棉花学报》 CSCD 北大核心 2008年第S1期54-,共1页
As a major raw material for the textile industry and the most important fiber crop in the world,cotton is of great significance in Chinese economy.The development of cotton fiber can be divided
关键词 GENE Cloning GhSCFP Gene and Its function in Cotton Fiber development
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Deficits in Magnocellular Pathway in Developmental Dyslexia: A Functional Magnetic Resonance Imaging-Electroencephalography Study 被引量:2
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作者 Hisako Yamamoto Yosuke Kita +6 位作者 Tomoka Kobayashi Hiroko Yamazaki Makiko Kaga Hideki Hoshino Takashi Hanakawa Hitoshi Yamamoto Masumi Inagaki 《Journal of Behavioral and Brain Science》 2013年第2期168-178,共11页
Background: Magnocellular deficit theory is among the different hypotheses that have been proposed to explain the pathophysiology of developmental dyslexia (DD). Dysfunction of the magnocellular system in DD has been ... Background: Magnocellular deficit theory is among the different hypotheses that have been proposed to explain the pathophysiology of developmental dyslexia (DD). Dysfunction of the magnocellular system in DD has been investigated using mainly visual evoked potentials (VEPs), particularly transient VEPs, although recently abnormal steady-state VEPs have also been reported. The brain regions responsible for the abnormal VEPs in DD have yet to be elucidated, however. In this study, we performed functional magnetic resonance imaging and electroencephalography (fMRI-EEG) simultaneously to elucidate the brain areas that were found in a previous study to be activated through stimulation of the magnocellular system, and then investigated the mechanism involved in the dysfunction seen in DD.Methods: Subjects were 20 healthy individuals (TYP group;13 men, 7 women;mean ± standard deviation age, 26.3 ± 5.53 years) and 2 men with DD (aged 42 and 30 years). Images of brain activity were acquired with 3-Tesla MRI while the viewing the reversal of low-spatial frequency and low-contrast black-and-white sinusoidal gratings. EEG was recorded concurrently to obtain steady-state VEPs.Results: Stimulus frequency-dependent VEPs were observed in the posterior region of the brain in the TYP group;however, VEP amplitudes in both DD patients were clearly smaller than those in TYP. fMRI images revealed that both the primary and secondary visual cortices were activated by black-and- white sinusoidal gratings in the TYP group, whereas activity in the visual cortex overall was reduced in both DD patients.Conclusions: Present low spatial and high reversal frequency visual stimuli activated the primary visual cortex presumably through predominant activation of the magnocellular pathway. This finding indicates that some cases of adult patients of DD involve impairment of the visual magnocellular system. 展开更多
关键词 developmentAL Dyslexia Simultaneous functional MRI-EEG Visual EVOKED Potential MAGNOCELLULAR DEFICIT Theory MAGNOCELLULAR Pathway
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Changes in hippocampal neurons and memory function during the developmental stage of newborn rats with hypoxic-ischemic encephalopathy
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作者 Chuanjun Liu1, Yue Li2, Huiying Gao3 1Department of Pediatric Internal Medicine, Taian Health Center for Women and Children,Taian 271000, Shandong Province, China 2Department of Anatomy, 3Department of Histology and Embryology, Taishan Medical College, Taian 271000, Shandong Province, China 《Neural Regeneration Research》 SCIE CAS CSCD 2006年第8期681-684,共4页
BACKGROUND: Under the normal circumstance, there exist some synapses with inactive functions in central nervous system (CNS), but these functions are activated following nerve injury. At the early stage of brain injur... BACKGROUND: Under the normal circumstance, there exist some synapses with inactive functions in central nervous system (CNS), but these functions are activated following nerve injury. At the early stage of brain injury, the abnormal functions of brain are varied, and they have very strong plasticity and are corrected easily. OBJECTIVE: To observe the changes of neuronal morphology in hippocampal CA1 region and memory function in newborn rats with hypoxic-ischemic encephalopathy(HIE) from ischemia 6 hours to adult. DESIGN: Completely randomized grouping, controlled experiment. SETTING: Taian Health Center for Women and Children; Taishan Medical College. MATERIALS: Altogether 120 seven-day-old Wistar rats, of clean grade, were provided by the Experimental Animal Center, Shandong University of Traditional Chinese Medicine. Synaptophysin (SYN) polyclonal antibody was provided by Maixin Biological Company, Fuzhou. METHODS: This experiment was carried out in the Laboratory of Morphology, Taishan Medical College between October 2000 and December 2003. ① The newborn rats were randomly divided into 2 groups: model group and control group, 60 rats in each group. Five rats were chosen from each group at postoperative 6 hours, 24 hours, 72 hours, 7 days, 2 weeks and 3 weeks separately for immunohistochemical staining. Fifteen newborn rats were chosen from each group at postoperative 4 weeks and 2 months separately for testing memory ability (After test, 5 rats from each group were sacrificed and used for immunohistochemical staining)② The right common carotid artery of newborn rats of model group was ligated under the anesthetized status. After two hours of incubation, the rats were placed for 2 hours in a container filled with nitrogen oxygen atmosphere containing 0.08 volume fraction of oxygen, thus, HIE models were created; As for the newborn rats in the control group, only blood vessels were isolated, and they were not ligated and hypoxia-treated. ③ Thalamencephal tissue sections of newborn rats of two groups were performed DAB developing and haematoxylin slight staining. Cells with normal nucleous in 250 μm-long granular layer which started from hippocampal CA1 region were counted with image analysis system under high-fold optical microscope (×600), and the thickness of granular layer was measured. The absorbance (A) of positive reactant of SYN in immunohistochemically-stained CA1 region was measured. Learning and memory ability were measured with step through test 3 times successively. ④ t test and paired t test were used for comparing intergroup and intragroup difference of measurement data respectively, and Chi-square for comparing the difference of enumeration data. MAIN OUTCOME MEASURES: Comparison of cytological changes in hippocampal CA1 region and memory ability at different postoperative time points between two groups. RESULTS: Totally 120 newborn rats were involved in the result analysis. ① Cell morphological changes in hippocampal CA1 region: In the control group, with aging, perikaryon, nucleus and nucleolus in cortex of parietal lobe were significantly increased, Nissl body was compacted, the amount of neurons was declined, but the A of SYN positive reactant was relatively increased. In the model group, at postoperative each time point, neurons were seriously shrunk and dark-stained, nucleus was contracted, chromatin was condensed, nucleolus was unclear, even cells disappeared, especially the cells in 6 hours and 24 hours groups. The amount of neurons with normal morphology in hippocampal CA1 region and granular layer thickness in the model group at postoperative each time point were significantly less or smaller than those in the control group at postoperative 6 hours respectively (t =3.002-1.254, P < 0.01). The A value of SYN positive reactant at postoperative 2, 3 and 4 weeks was significantly higher than that at previous time point (t =2.011-2.716,P < 0.05-0.01). ② Test results of learning and memory ability: In the first test, there was no significant difference in the ratio of rats which kept memory ability between two groups (P > 0.05); In the third test, the ratio of rats which kept memory ability in the model group was significantly lower than that in the control group at postoperative 4 weeks and 2 months[53%(8/15),100%(15/15);60%(9/15),93%(14/15),χ 2=2.863,2.901,P < 0.01]. CONCLUSION: The destroyed hippocampal structure induces the decrease of learning and memory ability of developmental rats. Early interference can increase the quality of neurons and also promote functional development of the nervous system. 展开更多
关键词 Changes in hippocampal neurons and memory function during the developmental stage of newborn rats with hypoxic-ischemic encephalopathy
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Attention-Deficit/Hyperactivity Disorder in Adults with High-Functioning Pervasive Developmental Disorders in Japan
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作者 Yasuko Takanashi Hirobumi Mashiko +9 位作者 Hirohide Yokokawa Yoko Kawasaki Shuntaro Itagaki Hiromichi Ishikawa Norihiro Miyashita Yasuaki Hayashi Asako Kudo Kentaro Oga Rieko Matsuura Shin-Ichi Niwa 《Open Journal of Psychiatry》 2014年第4期372-380,共9页
Aims: This study was designed to verify the proportion of Japanese adults with pervasive developmental disorder (PDD) who met the diagnostic criteria (other than E) for attention-deficit/hyperactivity disorder (ADHD) ... Aims: This study was designed to verify the proportion of Japanese adults with pervasive developmental disorder (PDD) who met the diagnostic criteria (other than E) for attention-deficit/hyperactivity disorder (ADHD) in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR). Furthermore, we examined to what extent adults with PDD think that they exhibit ADHD symptoms. Methods: We developed an original Japanese self-report questionnaire to determine the presence or absence of 18 symptoms from the diagnostic criteria for ADHD in the DSM-IV-TR. We administered the questionnaire to 64 adults with high-functioning PDD (45 men and 19 women) and 21 adults with ADHD (10 men and 11 women), aged 18 to 59 years, with a full-scale intelligence quotient ≥75. Target patients were evaluated for ADHD by their psychiatrists. Results: Twenty-nine (45.3%) adults with PDD also had ADHD. The percentage of these adults who had over six perceived inattention symptoms from the DSM-IV-TR was 96.6%. The percentage of these adults who had over six perceived hyperactivity-impulsivity symptoms was 65.5%. Thirty-five (55.6%) adults with PDD responded that they were aware of having ADHD symptoms at the level of the relevant diagnostic criteria. Conclusions: The present study is the first to examine the frequency of objective and perceived ADHD symptoms in adults with PDD in Japan. Our results show that both objective and perceived ADHD symptoms frequently appear in a large number of adults with PDD. This suggests that it is necessary to attend to concomitant ADHD symptoms in the medical care of adults with PDD. 展开更多
关键词 ADULTS Attention-Deficit/Hyperactivity Disorder (ADHD) High-functioning Pervasive developmental Disorders (PDD) SELF-REPORT
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To Actively Perform the Judicial Administration Function and Promote the Development of Cause of Human Rights
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作者 Xu Xinyan 《The Journal of Human Rights》 2016年第1期87-92,共6页
Respect for human rights and protection of human rights are significant rules in the Constitution of the People’s Republic of China.In 2015,judicial administration departments at all levels legally exercised their du... Respect for human rights and protection of human rights are significant rules in the Constitution of the People’s Republic of China.In 2015,judicial administration departments at all levels legally exercised their duties,implemented the principles and rules in constitution,and kept strengthening propagation of human rights through creation of contents and methods which had acquired great effects.What they have done contributes significantly toward the development of human rights in China. 展开更多
关键词 work To Actively Perform the Judicial Administration function and Promote the development of Cause of Human Rights
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Development and Application of High-efficiency,Interactive Processing Functions of SP2 Parallel Computer
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《China Oil & Gas》 CAS 2000年第2期44-44,共1页
关键词 development and Application of High-efficiency Interactive Processing functions of SP2 Parallel Computer SP
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基于认知、神经与遗传的汉语阅读障碍多维度机制研究
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作者 宋然然 张娇 《中国儿童保健杂志》 北大核心 2025年第9期939-943,共5页
本文回顾了汉语阅读障碍在认知功能、神经生理学及病因方面的最新进展。汉语阅读障碍的核心认知缺陷包括语音意识、语素意识、正字法及快速命名,并在左侧额下回低激活,右侧中央前回/颞中回高激活,提示存在语音处理缺陷及代偿机制。遗传... 本文回顾了汉语阅读障碍在认知功能、神经生理学及病因方面的最新进展。汉语阅读障碍的核心认知缺陷包括语音意识、语素意识、正字法及快速命名,并在左侧额下回低激活,右侧中央前回/颞中回高激活,提示存在语音处理缺陷及代偿机制。遗传学研究还发现了SEMA3F、AUTS2、EVC等新的易感基因,并探讨了环境因素及基因-环境交互作用的重要作用。未来还需要进一步的前瞻性研究阐明汉语阅读障碍普遍和特有的认知、神经生理及病因机制。 展开更多
关键词 汉语阅读障碍 认知功能 神经生理学 遗传易感性 基因-环境交互作用
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精苓口服液辅助治疗对全面性发育迟缓患儿认知、运动和社交能力的影响
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作者 陈玲 岳玲 +4 位作者 王泽熙 贾蓉 张浩天 崔玲玉 孙军 《广州中医药大学学报》 2025年第6期1401-1406,共6页
【目的】探究精苓口服液(由何首乌、黄精、柏子仁、莲子、女贞子、茯苓、百合等中药组成)辅助治疗对全面性发育迟缓(GDD)患儿认知、运动和社交能力的影响。【方法】选取2021年7月至2023年11月于河北省儿童医院神经康复科就诊的120例GDD... 【目的】探究精苓口服液(由何首乌、黄精、柏子仁、莲子、女贞子、茯苓、百合等中药组成)辅助治疗对全面性发育迟缓(GDD)患儿认知、运动和社交能力的影响。【方法】选取2021年7月至2023年11月于河北省儿童医院神经康复科就诊的120例GDD患儿作为研究对象,采用随机数字表法将患儿随机分为对照组和试验组,每组各60例。对照组患儿接受常规综合康复训练治疗,试验组患儿在对照组的基础上给予精苓口服液辅助治疗,疗程为12周。观察2组患儿治疗前后Gesell发育量表(GDS)评分、Peabody运动发育量表(PDMS)评分、运动功能评分和语言能力评分的变化情况,以评价2组患儿的认知、运动和社交能力。【结果】(1)治疗后,2组患儿GDS的适应性、精细运动发育商、语言发育商和个人-社交发育商等各维度评分均较治疗前明显升高(P<0.01),且试验组对GDS各维度评分的升高作用均明显优于对照组(P<0.01)。(2)治疗后,2组患儿PDMS的精细运动发育商、视觉运动整合标准分和抓握标准分等各维度评分均较治疗前明显升高(P<0.01),且试验组对PDMS各维度评分的升高作用均明显优于对照组(P<0.01)。(3)治疗后,2组患儿的精细运动(FMQ)、粗大运动(GMQ)和总运动(TMQ)等运动功能评分均较治疗前明显升高(P<0.01),且试验组对各项运动功能评分的升高作用均明显优于对照组(P<0.01)。(4)治疗后,2组患儿的语言能力评分均较治疗前明显升高(P<0.01),且试验组对语言能力评分的升高作用明显优于对照组(P<0.01)。【结论】在常规综合康复训练治疗基础上联合精苓口服液辅助治疗,可有效提升GDD患儿的认知、运动和社交能力水平。 展开更多
关键词 精苓口服液 全面性发育迟缓 运动功能 社交能力 认知能力 儿童
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Plant MicroRNAs and Development 被引量:14
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作者 Gang Wu 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2013年第5期217-230,共14页
MicroRNAs(miRNAs) are a class of about 20—24 nt small non-coding RNAs that can regulate their target gene expression transcriptionally and posttranscriptionally.There are an increasing number of studies describing ... MicroRNAs(miRNAs) are a class of about 20—24 nt small non-coding RNAs that can regulate their target gene expression transcriptionally and posttranscriptionally.There are an increasing number of studies describing the identification of new components and regulatory mechanisms involved in the miRNA biogenesis and effector pathway as well as new functions of miRNAs in plant development. This review mainly focuses on the components involved in this pathway,and the developmental defects associated with the corresponding mutations.Some functions of important miRNAs in plant development,together with the modes of miRNA action,are also discussed in this review to describe the recent advance in this area. 展开更多
关键词 Plant miRNAs Biogenesis function development
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髋关节旋转中心位置对全髋关节置换术后CroweⅣ型DDH患者关节功能的影响
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作者 李建强 靳宇 赵文献 《中国现代医学杂志》 2025年第17期86-92,共7页
目的探讨不同髋关节旋转中心位置对全髋关节置换术后CroweⅣ型发育性髋关节发育不良(DDH)患者关节功能恢复的影响。方法选取2019年1月—2024年3月唐山市人民医院82例行全髋关节置换术的CroweⅣ型DDH患者为研究对象,根据术后标准骨盆正... 目的探讨不同髋关节旋转中心位置对全髋关节置换术后CroweⅣ型发育性髋关节发育不良(DDH)患者关节功能恢复的影响。方法选取2019年1月—2024年3月唐山市人民医院82例行全髋关节置换术的CroweⅣ型DDH患者为研究对象,根据术后标准骨盆正位片测量旋转中心垂直上移距离(ΔH),将患者分为3组:ΔH1组(ΔH<5 mm,34例),ΔH2组(ΔH 5~<10 mm,29例),ΔH3组(ΔH≥10 mm,19例)。比较3组术前、术后3个月、术后6个月、术后12个月的Harris评分(HHS)、伯格平衡量表(BBS)评分、视觉模拟评分法(VAS)评分及Trendelenburg征阳性率;比较3组术后12个月患侧与健侧臼杯前倾角、外展角、偏心距的差异,以及假体松动、脱位、髂腰肌撞击等不良事件的发生情况。结果术前、术后3个月、术后6个月、术后12个月HHS、BBS、VAS评分比较,结果:①不同时间点的HHS、BBS、VAS评分比较,差异均有统计学意义(P<0.05);②ΔH1组、ΔH2组和ΔH3组的HHS、BBS、VAS评分比较,差异均有统计学意义(P<0.05);③3组的HHS评分变化趋势比较,差异有统计学意义(P<0.05)。3组术后3、6、12个月Trendelenburg征阳性率比较,差异均有统计学意义(P<0.05);ΔH3组术后12个月Trendelenburg征阳性率均高于ΔH1组和ΔH2组,术后3个月、6个月Trendelenburg征阳性率均高于ΔH1组(P<0.05)。3组术后12个月患者患侧与健侧臼杯前倾角、臼杯外展角、偏心距的差值比较,差异均有统计学意义(P<0.05);ΔH1组患侧与健侧臼杯前倾角的差值均小于ΔH2组和ΔH3组(P<0.05),臼杯外展角和偏心距的差值均小于ΔH3组(P<0.05);ΔH2组患侧与健侧臼杯前倾角、臼杯外展角、偏心距的差值均小于ΔH3组(P<0.05)。ΔH3组不良事件总发生率均高于ΔH1组和ΔH2组(P<0.0125)。结论髋关节旋转中心位置的合理调整对CroweⅣ型DDH患者的全髋关节置换术后关节功能恢复具有重要影响。适度调整旋转中心位置可显著提高术后髋关节功能,且安全性较高,上移幅度<10 mm时效果更佳。这一调整策略对临床改善患者的关节功能及减少并发症具有积极作用。 展开更多
关键词 全髋关节置换术 髋关节旋转中心 CroweⅣ型发育性髋关节发育不良 髋关节功能 假体脱位
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汉语发展性阅读障碍儿童全脑静息态功能连接的特征分析
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作者 骆丹丹 沈敏 +4 位作者 王素娟 邱翁歆 张宇轩 吴蕴 王圣虓 《中国康复理论与实践》 北大核心 2025年第9期1023-1031,共9页
目的采用功能性近红外光谱技术(fNIRS)探究汉语发展性阅读障碍(DD)儿童和典型发育(TD)的健康儿童在静息态下全脑网络的连接特征。方法2024年11月至12月,选取复旦大学附属儿科医院6~12岁DD儿童19例(DD组),同时招募年龄和性别匹配的TD儿... 目的采用功能性近红外光谱技术(fNIRS)探究汉语发展性阅读障碍(DD)儿童和典型发育(TD)的健康儿童在静息态下全脑网络的连接特征。方法2024年11月至12月,选取复旦大学附属儿科医院6~12岁DD儿童19例(DD组),同时招募年龄和性别匹配的TD儿童18例(TD组),选取额叶皮质(FC)、颞叶皮质(TL)、枕叶皮质(OL)和顶叶皮质(PL)脑区为感兴趣区,采用fNIRS采集两组全脑静息态数据,持续5 min。基于氧合血红蛋白在时间序列上的浓度,计算两组静息态下的功能连接强度,比较两组功能连接强度和脑网络的差异。结果DD组全脑功能连接强度高于TD组(t=2.100,P<0.05)。DD组右侧OL-右侧FC(t=2.426,P<0.05)、右侧OL-左侧FC(t=2.483,P<0.05)、右侧TL-右侧FC(t=2.568,P<0.05)和右侧TL-左侧FC(t=2.304,P<0.05)功能连接强度大于TD组。两组全脑功能连接差异的主要区域位于右侧背外侧前额叶皮质、右侧视觉联合皮质、右侧额叶皮质、左侧额眶区、左侧视觉联合皮质、左侧初级视觉皮质和右侧初级皮质运动区。结论DD儿童静息态下右侧枕叶、颞叶及二者与前额叶之间的连接强度较强,提示可能存在右脑代偿左脑阅读网络功能不足的现象。 展开更多
关键词 发展性阅读障碍 功能性近红外光谱技术 静息态 全脑功能连接
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发展性阅读障碍儿童视空间工作记忆脑激活特征及关联研究
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作者 肖欣雨 尹菲菲 +3 位作者 高姗 李娟 姬春 左彭湘 《中国儿童保健杂志》 北大核心 2025年第9期959-963,共5页
目的分析发展性阅读障碍(DD)儿童执行视空间工作记忆任务时大脑前额叶皮层脑激活特征及其与阅读障碍症状的相关性,为DD儿童的鉴别诊断提供神经影像学依据。方法2024年5—6月对新疆某地区1所小学3~5年级全体学生进行DD筛查,根据家长意愿... 目的分析发展性阅读障碍(DD)儿童执行视空间工作记忆任务时大脑前额叶皮层脑激活特征及其与阅读障碍症状的相关性,为DD儿童的鉴别诊断提供神经影像学依据。方法2024年5—6月对新疆某地区1所小学3~5年级全体学生进行DD筛查,根据家长意愿及儿童利手情况,最终纳入33名DD儿童,按年级、年龄、性别进行1∶1匹配正常对照组儿童33名,利用功能性近红外成像(fNIRS)技术采集两组儿童视空间工作记忆任务下大脑前额叶皮层氧合血红蛋白(HbO2)浓度变化,以反映其大脑前额叶皮层的激活情况,采用儿童汉语阅读障碍量表(DCCC)评估儿童的阅读障碍症状。采用两独立样本t检验或Mann-Whitney U检验比较两组儿童视空间工作记忆任务下大脑前额叶皮层HbO2浓度变化的差异,并使用Spearman相关分析DD儿童大脑前额叶皮层HbO2浓度变化与其阅读障碍症状的相关性。结果fNIRS结果显示DD组儿童在背外侧前额叶通道8(t=2.134)、眶额叶皮层通道13(Z=2.860)和额极皮层通道14(t=2.212)中HbO2浓度变化的β值显著低于正常对照组儿童(P<0.05)。DD组儿童的DCCC总分及8个因子得分显著高于正常对照组儿童(Z=6.983、6.626、6.986、6.941、6.358、6.915、6.710、6.864、6.876,P<0.001)。Spearman相关分析结果发现,DD儿童额极皮层通道14的HbO2浓度变化的β值与视知觉障碍因子(r=-0.430,P<0.05)和书写障碍因子(r=-0.438,P<0.05)呈显著负相关。结论DD儿童存在视空间工作记忆缺陷,主要表现在背外侧前额叶、眶额叶皮层及额极皮层激活不足;额极皮层可能是辅助诊断DD儿童的生物学标记物。 展开更多
关键词 发展性阅读障碍 视空间工作记忆 功能性近红外成像技术 儿童
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GMs结合头颅B超对新生儿脑功能评估的效果分析
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作者 曾小金 杨娟 刘林英 《中国医学创新》 2025年第22期166-169,共4页
目的:探究全身运动质量(general movements,GMs)评估结合头颅B超对新生儿脑功能评估的效果。方法:2023年9月—2024年4月,瑞金市妇幼保健院纳入了104例新生儿作为研究对象。所有纳入研究的新生儿均在出生后1月龄内完成了头颅B超检查,在出... 目的:探究全身运动质量(general movements,GMs)评估结合头颅B超对新生儿脑功能评估的效果。方法:2023年9月—2024年4月,瑞金市妇幼保健院纳入了104例新生儿作为研究对象。所有纳入研究的新生儿均在出生后1月龄内完成了头颅B超检查,在出生1月龄内及3月龄时进行GMs评估,6月龄时根据临床诊断评估其脑功能发育结局。分析GMs结合头颅B超对新生儿脑功能评估的效果。结果:104例受试者中发育正常者81例(77.88%),确诊为发育迟缓和脑瘫者分别是20例(19.23%)和3例(2.88%)。GMs评估结果显示,扭动运动阶段中正常率为64.42%,不安运动阶段中正常率为77.88%;部分患儿表现为姿势异常或运动质量受限。头颅B超检查中,77.88%的新生儿未见明显异常。两者联合检测对新生儿脑功能发育结局有较高的预测价值(AUC为0.971,敏感度为95.7%,特异度为100%)。结论:GMs评估结合头颅B超能够有效评估新生儿脑功能,具有较高的预测价值,能够准确识别发育正常、新生儿发育迟缓及脑瘫的风险。 展开更多
关键词 全身运动质量 头颅B超 新生儿 脑功能 发育结局
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发育调节因子助力作物遗传转化效率提升
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作者 谢盈盈 王克剑 +1 位作者 饶玉春 黄勇 《遗传》 北大核心 2025年第9期992-1006,共15页
遗传转化技术是现代生物学和农业生物技术的核心工具。近年来,发育调节因子(developmental regulatory factors,DRs)在提升作物遗传转化效率方面显示出巨大潜力。本文系统回顾了主要的作物遗传转化方法,包括农杆菌介导的转化和基因枪法... 遗传转化技术是现代生物学和农业生物技术的核心工具。近年来,发育调节因子(developmental regulatory factors,DRs)在提升作物遗传转化效率方面显示出巨大潜力。本文系统回顾了主要的作物遗传转化方法,包括农杆菌介导的转化和基因枪法,探讨了当前遗传转化过程中存在的瓶颈,如转化效率低、基因型依赖性强和再生能力不足等。随后,详细论述了几类重要的发育调节因子及其在提高遗传转化效率、克服基因型依赖性、增强再生能力等方面的最新应用进展;同时,对发育调节因子的未来应用前景进行了展望,强调了其在精准基因编辑、功能基因组学、合成生物学以及作物遗传改良等领域的重要应用潜力。通过对发育调节因子的深入研究,作物遗传转化的瓶颈有望得到有效突破,从而推动作物科学和农业生物技术的进一步发展。 展开更多
关键词 发育调节因子 遗传转化 再生能力 作物 功能基因组
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