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Clinical usefulness of the baby vision test in young children and its correlation with the Snellen chart
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作者 Ya-Lan Wang Jia-Jun Wang +2 位作者 Xi-Cong Lou Han Zou Yun-E Zhao 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第2期348-352,共5页
AIM:To investigate the efficacy of a new visual acuity(VA)screening method,the baby vision test for young children.METHODS:A total 105 eyes of 65 children aged 2-8y were included in the study.Acuity testing was conduc... AIM:To investigate the efficacy of a new visual acuity(VA)screening method,the baby vision test for young children.METHODS:A total 105 eyes of 65 children aged 2-8y were included in the study.Acuity testing was conducted using a standardized recognition acuity chart(Snellen visual chart:at 3 m)and the baby vision model assessment.The baby vision device includes a screen,a near infrared camera and a computer.Children were seated at a measured distance of 33-40 cm from a display for testing.VA was estimated according to the highest resolution the children could follow.Decimal VA data were converted to logarithm of the minimum angle of resolution(logMAR)for statistical analysis.The VA results for each child were recorded and analyzed for consistency.RESULTS:The mean VA measured using the Snellen visual chart was 0.62±0.32,and that assessed using the baby vision test was 0.66±0.27.The 95%limit of agreement was-0.609 to 0.695,with 95.2%(100/105)plots within the 95%limits of agreement.VA values of the baby vision test were significantly correlated with those of the Snellen chart(R=0.274,P=0.005).CONCLUSION:The baby vision test can be used as a relatively reliable method for estimating VA in young children.This new acuity assessment might be a valid predictor of optotype-measured acuity later in preverbal children. 展开更多
关键词 baby vision test acuity assessment fix-and-follow system Snellen chart
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Perceptions of Mothers with Preterm Babies towards Donor Breast Milk at Women and Newborn Hospital,Lusaka Zambia
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作者 Monde Muyangana Maureen Masumo Mutinke Zulu 《Open Journal of Pediatrics》 2024年第4期669-685,共17页
Breast milk offers essential nutrients crucial for the development of the preterm immune system, thus reducing the incidence of infection and mortality often associated with prematurity. In the absence of breast milk,... Breast milk offers essential nutrients crucial for the development of the preterm immune system, thus reducing the incidence of infection and mortality often associated with prematurity. In the absence of breast milk, the preferred option is donated breast milk, the best alternative for hospitalized neonates whose mothers have insufficient breast milk or are unavailable. In Zambia, donor breast milk is unavailable. Instead, the protocol recommends the administration of formula milk. However, the use of formula milk in preterm babies is associated with an increased risk of necrotizing enterocolitis and sepsis. Zambia needs to establish a donor milk bank, hence the need to understand the perception of mothers towards donated breast milk. A qualitative descriptive case study utilized 10 focus group discussions with in-depth interviews, purposively selected using a variation strategy. Data was thematically analysed. Participants demonstrated potential acceptance to donor breast milk utilization, as more nutritional compared to formula despite lack of awareness. Concerns related to safety, quality, fear of disease transmission and discomfort feeding from a different bloodline were identified as hinderance to possible utilisation. These perceptions underscore the importance of educational initiatives aimed at dispelling myths and misconceptions surrounding donor breast milk and establishing donor breast milk programs. Therefore, the study recommends educational initiatives tailored to raise awareness to mothers about donor breast milk. 展开更多
关键词 Perception Donor Breast Milk Preterm baby
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Acceptability of Kangaroo Mother Care (KMC) by Mothers with Low-Birth-Weight Babies at Arthur Davison Children’s Hospital, in Ndola, Zambia
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作者 Julia D. Kalito Maureen M. Masumo Chapima Fabian 《Open Journal of Obstetrics and Gynecology》 2024年第5期790-823,共34页
Background: Kangaroo Mother Care is a simple safe method used to care for low-birth-weight babies. Low-birth-weight is a global public health issue that pose significant challenge to perinatal care systems. Globally, ... Background: Kangaroo Mother Care is a simple safe method used to care for low-birth-weight babies. Low-birth-weight is a global public health issue that pose significant challenge to perinatal care systems. Globally, complications due to low-birth-weight are the leading cause of neonatal mortality, resulting in an estimated 1 million deaths annually. Kangaroo Mother Care (KMC) is a low-cost method of care for low-birth-weight infants in areas with inadequate incubators and power outages with positive outcomes. Objectives: To assess factors influencing acceptability of Kangaroo Mother Care (KMC) in NICU at Arthur Davison Children’s Hospital in Ndola, Zambia. Methodology: A cross sectional quantitative analytical study design was used. The study was conducted at Arthur Davison Children’s Hospital (ADCH) in Ndola, Zambia. The purposive sampling method was used to select the study participants and a total of 129 mothers with Low Weight Babies A were selected to participate structured closed ended questionnaire was used to collect data from the participants using an interview. Data was analyzed using a Statistical Package for Social Scientists (SPSS) software version 26. Cross tabulations were done to determine association of variables using a Chi square (x<sup>2</sup>) test at 95% confidence interval and were assumptions where not met, fishers exact test was used. Multivariate binary logistic regression analysis was used to quantify the relationship between the dependent and independent variables. Results: Most of the respondents had male babies 77%, 69% of the babies weighed 1000 g - 1400 g, majority 79% had normal delivery, 71% of the respondents were multigravida and most of the respondents 79% were married. The study reviewed that 85% of those who attained secondary education accepted KMC, 74% of the respondents without monthly income accepted KMC, 80% of the respondents had positive attitude and accepted KMC. 82% of the respondents who had positive perception accepted KMC. Conclusion: Acceptance of Kangaroo Mother Care (KMC) among 75% of the mothers underscores its widespread favourability as a beneficial method for infant care. 展开更多
关键词 ACCEPTABILITY Kangaroo Mother Care Low Birth Weight Babies
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Distortion product otoacoustic emissions in newborn babies with and without late-term maternal iron deficiency anaemia
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作者 Deepashree Somanahalli Ramachandra Ajith Kumar Uppunda Kumar Gavali Suryanarayana 《Journal of Otology》 CAS CSCD 2023年第3期132-138,共7页
Background:Studies on animals have demonstrated that maternal iron deficiency anaemia(IDA)could result in decreased cochlear sensory hair cells and reduced amplitudes of distortion-product otoacoustic emissions(DPOAEs... Background:Studies on animals have demonstrated that maternal iron deficiency anaemia(IDA)could result in decreased cochlear sensory hair cells and reduced amplitudes of distortion-product otoacoustic emissions(DPOAEs)of young guinea pigs.Thus,it is essential to study the functioning of cochlear hair cells using DPOAEs in human newborn babies with maternal IDA.The current study explores maternal IDA’s effect on DPOAEs in newborn babies.Method:A total of 110 newborn babies with gestational age≥34 weeks were considered and a‘betweensubjects’design was used.The participants were divided into 3 groups-“Normal”(61 babies without maternal IDA),“Mild”(28 babies with mild maternal IDA)and“Moderate”(21 babies with moderate maternal IDA).The cord blood was collected and the DPOAEs were recorded for each baby for a range of frequencies(1 k 8 kHz)and a range of intensities(7040 dB SPL in 10 dB steps).Results:The analysis of both DP-gram and DP input-output(I/O)function showed that there was no significant difference(p>0.05)across the normal,mild,and moderate groups in the overall presence of DPOAEs as well as the amplitude across frequencies or intensities(7040 dB SPL).Also,the overall correlation of RBC indices with DPOAE amplitude across frequencies as well as the slope of the I/O function showed no relationship.Conclusion:The current study concludes that there is no effect of late-term maternal IDA on the DPOAEs of newborn babies. 展开更多
关键词 Maternal iron deficiency anaemia Newborn babies Distortion product otoacoustic emissions Cochlear hair cell functioning Red blood cell indices HAEMOGLOBIN
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量子宇宙学、baby宇宙和虫洞 被引量:7
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作者 沈有根 《天文学进展》 CSCD 北大核心 1991年第3期182-191,共10页
本文介绍了量子宇宙学中的Hartle-Hawking欧氏路径积分方法与Vilenkin隧道波函数方法以及它们各自的边界条件,并在de Sittef时空中,对上述两类宇宙波函数进行了具体计算。本文还对各种微超空间模型进行了介绍,并对baby宇宙与虫洞也作了... 本文介绍了量子宇宙学中的Hartle-Hawking欧氏路径积分方法与Vilenkin隧道波函数方法以及它们各自的边界条件,并在de Sittef时空中,对上述两类宇宙波函数进行了具体计算。本文还对各种微超空间模型进行了介绍,并对baby宇宙与虫洞也作了一些介绍。 展开更多
关键词 宇宙学 量子宇宙学 baby宇宙 虫洞
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织构化BaBi_4Ti_4O_(15)压电陶瓷的制备与性能研究
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作者 李丽华 顾永军 +2 位作者 黄金亮 李谦 陈冠羽 《电子元件与材料》 CAS CSCD 北大核心 2012年第11期15-17,27,共4页
以熔盐法制备的BaBi4Ti4O15片状粉体作为模板,流延法制备了BaBi4Ti4O15压电陶瓷,并与传统固相法制备的BaBi4Ti4O15压电陶瓷进行比较。通过XRD分析不同工艺制备的陶瓷样品相结构,SEM观察其微观形貌。结果表明:流延法制备的BaBi4Ti4O15陶... 以熔盐法制备的BaBi4Ti4O15片状粉体作为模板,流延法制备了BaBi4Ti4O15压电陶瓷,并与传统固相法制备的BaBi4Ti4O15压电陶瓷进行比较。通过XRD分析不同工艺制备的陶瓷样品相结构,SEM观察其微观形貌。结果表明:流延法制备的BaBi4Ti4O15陶瓷在(00l)方向实现了定向排列,且随着模板含量的增加,(00l)晶面的定向度f增加,模板质量分数为20%时,f=57.7%。另外,流延法制得的BaBi4Ti4O15陶瓷样品容易致密,当烧结温度从1 140℃到1 145℃时,密度由5.39 g.cm–3增大到6.64 g.cm–3,在1 150℃达到最大密度7.39 g.cm–3。 展开更多
关键词 熔盐法 BaBi4Ti4O15 定向度 密度
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BaBi2Nb2O9掺杂对BaTiO3基PTCR材料组织和性能的影响
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作者 张廷玖 李旭琼 《功能材料》 EI CAS CSCD 北大核心 2007年第A02期621-624,共4页
研究了BaBi2Nb2O9掺杂对BaTiO3基PTCR材料的组成和断面形貌以及材料中BaBi2Nb2O9的含量和烧结工艺对材料电性能的影响。结果表明经过BaBi2Nb2O9掺杂对BaTi03基材料具有典型的PTC效应。并且随着材料中BaBi2Nb2O9掺杂量的增加,材料的室... 研究了BaBi2Nb2O9掺杂对BaTiO3基PTCR材料的组成和断面形貌以及材料中BaBi2Nb2O9的含量和烧结工艺对材料电性能的影响。结果表明经过BaBi2Nb2O9掺杂对BaTi03基材料具有典型的PTC效应。并且随着材料中BaBi2Nb2O9掺杂量的增加,材料的室温电阻率减小到一个最小值然后又开始增大。利用扫描电镜分析了样品的断面形貌,随着BaBi2Nb2O9掺杂量的增加,样品的平均晶粒尺寸减小。在BaBi2Nb2O9掺杂量一定的情况下,研究了烧结温度对材料电性能的影响规律。当烧结温度为1290℃时材料可以得到最小的室温电阻率。 展开更多
关键词 PTC BaBi2Nb2O9 显微组织 电性能
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Sr_xBa_(1-x)Bi_4Ti_4O_(15)陶瓷及SrBi_4Ti_4O_(15)/BaBi_4Ti_4O_(15)复合材料的性能研究
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作者 黄平 徐廷献 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2005年第8期1226-1229,共4页
采用固相烧结工艺制备了SrxBa1-xBi4Ti4O15铁电陶瓷和SrBi4Ti4O15/BaBi4Ti4O15铁电复合材料。在固相反应过程中,680℃时SrBi4Ti4O15或BaBi4Ti4O15开始生成;800℃时材料主晶相基本形成,但是还有微量焦绿石相存在;850℃时SrBi4Ti4O15或BaB... 采用固相烧结工艺制备了SrxBa1-xBi4Ti4O15铁电陶瓷和SrBi4Ti4O15/BaBi4Ti4O15铁电复合材料。在固相反应过程中,680℃时SrBi4Ti4O15或BaBi4Ti4O15开始生成;800℃时材料主晶相基本形成,但是还有微量焦绿石相存在;850℃时SrBi4Ti4O15或BaBi4Ti4O15的主要衍射峰全部出现。随着Ba含量的增加,SrxBa1-xBi4Ti4O15陶瓷的居里温度逐渐降低。Sr0.5Ba0.5Bi4Ti4O15陶瓷的介电常数峰在高频时较宽,在100Hz时,介电常数峰被随温度升高而逐渐增大的介电常数所“屏蔽”,材料介电损耗随温度升高而增大,但在低频下增加得更快,这是高温下由氧空位引起的电子松弛极化造成的。将预烧后的SrBi4Ti4O15和BaBi4Ti4O15粉体分别造粒后再均匀混合,压片成型,经烧结制得的SrBi4Ti4O15/BaBi4Ti4O15复合陶瓷其相变弥散特性明显优于SrxBa1-xBi4Ti4O15的相变弥散特性。 展开更多
关键词 SrxBa1-xBi4Ti4O15铁电陶瓷 SrBi4Ti4O15/BaBi4Ti4O15复合材料 介电性能
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Hello Baby
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《父母世界》 2009年第9期2-3,共2页
我学会了 平静呼吸的秘密 我了解了 耐心倾听的意义
关键词 《Hello baby》 诗歌 中国 当代文学
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Hello Baby
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《父母世界》 2009年第5期F0002-F0002,共1页
我可以给你 我最爱的那个名字 却无法命题 你带来的成长故事
关键词 诗歌 《Hello baby》 文学作品 现代文学
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BaBi_(10)B_6O_(25)掺杂对CaZrO_3陶瓷介电性能的影响 被引量:1
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作者 孙换 李谦 +1 位作者 黄金亮 顾永军 《压电与声光》 CSCD 北大核心 2015年第2期271-273,276,共4页
研究了BaBi10B6O25掺杂量对CaZrO3陶瓷烧结性能、物相组成、介电性能和微观组织形貌的影响。结果表明,通过掺杂BaBi10B6O25,可使CaZrO3陶瓷的烧结温度由1 500℃降至1 000℃,且无第二相生成,相对密度达98%。当w(BaBi10B6O25)=7.5%时,CaZ... 研究了BaBi10B6O25掺杂量对CaZrO3陶瓷烧结性能、物相组成、介电性能和微观组织形貌的影响。结果表明,通过掺杂BaBi10B6O25,可使CaZrO3陶瓷的烧结温度由1 500℃降至1 000℃,且无第二相生成,相对密度达98%。当w(BaBi10B6O25)=7.5%时,CaZrO3陶瓷在1 000℃烧结3h获得良好的介电性能:介电常数εr=28,品质因数与频率之积Q·f=8 872GHz,频率温度系数τf=21×10-6/℃。 展开更多
关键词 微波介质陶瓷 CaZrO3陶瓷 介电性能 低温烧结 液相烧结 BaBi10B6O25
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baby不一定是“婴儿”
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作者 汪伦 《疯狂英语(初中天地)》 2002年第6期29-29,共1页
1.Tom bought a baby car last year.汤姆去年买了一辆微型汽车。2.She is my baby sister.她是我年龄最小的妹妹。3.He is sleeping like a baby.他正睡得像孩子似的。4.Baby,I can't live without you.宝贝,我不能没有你。
关键词 baby
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sl(4,k)的广义baby Verma模的不可约性 被引量:1
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作者 李宜阳 《上海工程技术大学学报》 CAS 2009年第2期181-183,共3页
研究了素特征域上李代数sl(4,k)表示中广义baby Verma模的不可约性问题.通过判别广义baby Verma模的最高权向量的存在性,给出了正则最高权落在不同室的广义baby Verma模不可约性的判断.
关键词 标准Levi型 广义baby VERMA模 极大权向量
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A位离子改性对BaBi4Ti4O15陶瓷电学性能的影响
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作者 杨武丽 方频阳 +2 位作者 惠增哲 龙伟 李晓娟 《西安工业大学学报》 CAS 2019年第4期433-441,共9页
为了探究Nd3+对BaBi4Ti4O15(BBT)陶瓷A位不同元素进行取代所造成的结构以及介电性能的影响,文中采用传统固相法制备了Ba1-xNdxBi4Ti4O15(BNBT,其中x=0.05,0.10)陶瓷和BaBi4-xNdxTi4O15(BBNT,其中x=0.05,0.10)陶瓷,采用X射线衍射分析仪(X... 为了探究Nd3+对BaBi4Ti4O15(BBT)陶瓷A位不同元素进行取代所造成的结构以及介电性能的影响,文中采用传统固相法制备了Ba1-xNdxBi4Ti4O15(BNBT,其中x=0.05,0.10)陶瓷和BaBi4-xNdxTi4O15(BBNT,其中x=0.05,0.10)陶瓷,采用X射线衍射分析仪(XRD)表征材料的相结构,利用HP4294A自动测试系统测试不同频率下的介电常数ε′和介电损耗tanδ随温度T(室温到500℃)的变化情况。通过修正的居里-外斯定律和洛伦兹经验公式,对Nd^3+取代BBT陶瓷的相变过程中产生的介电弛豫现象进行分析与表征。研究结果表明:通过A位改性可以有效改善BBT陶瓷的居里温度和弛豫程度,不同的Nd^3+掺杂量以及改性位置对BBT陶瓷结构和电学性能的影响不同,当Nd^3+取代BBT陶瓷的Ba^2+位时,随着掺杂量的增加,BBT陶瓷的弛豫程度和弥散强度逐渐增强;当Nd3+取代BBT陶瓷的Bi^3+位时,BBT陶瓷的弛豫程度逐渐减弱。 展开更多
关键词 Arrivillius氧化物 BaBi4Ti4O15 弛豫相变 弥散
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Transfusion related morbidity in premature babies: Possible mechanisms and implications for practice 被引量:5
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作者 Keith James Collard 《World Journal of Clinical Pediatrics》 2014年第3期19-29,共11页
Many premature babies, especially those with a low birth weight are given multiple transfusions during their first few weeks of life. The major serious complications of prematurity include bronchopulmonary dysplasia, ... Many premature babies, especially those with a low birth weight are given multiple transfusions during their first few weeks of life. The major serious complications of prematurity include bronchopulmonary dysplasia, with lesser incidences of retinopathy of prematurity, intraventricular haemorrhage, and necrotising enterocolitis. Many studies have shown correlations between the receipt of blood transfusions and the development of these conditions, but little is known of the underlying pathophysiology of this relationship. Recent studies are beginning to provide some answers. This review examines recent findings with regard to the influence of preparation and storage of paediatric packed red blood cell units on heme, iron, and oxidative status of the units and relates these to the ability of the premature baby to deal with these changes following the receipt of blood transfusions. Paediatric packed red blood cell units are a potential source of heme, redox active iron and free radicals, and this increases with storage age. Haemolysis of transfused red blood cells may add further iron and cell free haemoglobin to the recipient baby. Premature babies, particularly those with low birth weight and gestational age appear to have littlereserve to cope with any additional iron, heme and/or oxidative load. The consequences of these events are discussed with regard to their contribution to the major complications of prematurity and a novel hypothesis regarding transfusion-related morbidity in premature babies is presented. The review concludes with a discussion of potential means of limiting transfusion related iron/heme and oxidative load through the preparation and storage of packed red blood cell units and through modifications in clinical practice. 展开更多
关键词 Blood TRANSFUSIONS PREMATURE babies Iron HEME Oxidative stress Storage lesion Complications of PREMATURITY
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A new peroral mother-baby endoscope system for biliary tract disorders 被引量:1
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作者 Christian Prinz Andreas Weber +3 位作者 Stefanie Goecke Bruno Neu Alexander Meining Eckart Frimberger 《World Journal of Gastrointestinal Endoscopy》 CAS 2014年第1期20-26,共7页
AIM: To investigate a new mother-baby system, consisting of a peroral cholangioscope and a duodenoscope in patients regarding its feasibility. METHODS: In the study period from January 2007 to February 2010, 76 consec... AIM: To investigate a new mother-baby system, consisting of a peroral cholangioscope and a duodenoscope in patients regarding its feasibility. METHODS: In the study period from January 2007 to February 2010, 76 consecutive patients(33 men, 43 women; mean age 63 years old) were included in this pilot series. Endoluminal images and biopsies were obtained from 55 patients with indeterminate strictures, while 21 patients had fixed filling defects. The diagnostic accuracy of peroral cholangioscopy(POCS) in the visualization of strictures and tissue sampling was evaluated, and therapeutic success was monitored. Followup was performed over at least 9 mo. RESULTS: A total of 55 patients had indeterminate strictures. Using the criteria "circular stenosis" and "irregular surface or margins", POCS correctly described 27 out of 28 malignant biliary strictures and 25 out of 27 benign lesions(sensitivity, 96.4%; specificity, 92.6%, diagnostic accuracy 94.5%). Visually targeted forceps biopsies were performed in 55 patients. Tissue sampling during POCS revealed malignancy in 18 of 28 cases(sensitivity: 64.3%). In 21 patients with fixed filling defects, 10 patients with bile duct stones were successfully treated with conventional stone removal. Nine patients with difficult stones(5 giant stones and 4 intrahepatic stones) were treated with visually guided laser lithotripsy. Two patients in the group with unclear fixed filling defects had bile duct adenoma or papillary tumors and were surgically treated. CONCLUSION: The new 95 cm POCS allows for accurate discrimination of strictures and fixed filling defects in the biliary tree, provides improved sensitivity of endoscopically guided biopsies and permits therapeutic approaches for difficult intrahepatic stones. 展开更多
关键词 BILE duct stenosis Stones Mother baby endoscopy Peroral CHOLANGIOSCOPY CHOLANGIOSCOPY Endoscopic RETROGRADE CHOLANGIOPANCREATOGRAPHY
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LEO+Baby单支架辅助弹簧圈栓塞前交通动脉瘤的有效性及安全性 被引量:2
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作者 蒋周阳 唐俊 +3 位作者 陈志 冯华 朱刚 缪洪平 《局解手术学杂志》 2021年第4期296-300,共5页
目的评价专为小血管设计的低剖面、自膨式LEO+Baby单支架辅助弹簧圈栓塞前交通动脉瘤的有效性和安全性。方法回顾性分析应用LEO+Baby单支架辅助弹簧圈栓塞技术治疗的52例前交通动脉瘤患者的临床资料,统计患者基本信息、影像学资料、手... 目的评价专为小血管设计的低剖面、自膨式LEO+Baby单支架辅助弹簧圈栓塞前交通动脉瘤的有效性和安全性。方法回顾性分析应用LEO+Baby单支架辅助弹簧圈栓塞技术治疗的52例前交通动脉瘤患者的临床资料,统计患者基本信息、影像学资料、手术情况及并发症情况。结果52例前交通动脉瘤患者应用LEO+Baby支架51枚,1例患者支架导管到位困难,转开颅手术治疗,其余均操作成功,成功率为98%(51/52);术后即刻造影动脉瘤完全栓塞42例,瘤颈残留9例。术中动脉瘤破裂1例,支架内血栓形成3例,术中弹簧圈脱出1例。术后随访6~12个月,改良Rankin量表(mRS)评分为4~5分2例,2~3分5例,随访无死亡病例。46例患者术后6个月DSA复查结果显示完全栓塞率89.1%(41/46),其余5例未行DSA复查;无支架相关并发症及动脉瘤再破裂出血发生。头颅CT显示,无迟发性脑梗死、脑出血发生。结论应用LEO+Baby单支架辅助弹簧圈栓塞前交通动脉瘤操作成功率和安全性高、围术期并发症少且短期预后良好。 展开更多
关键词 LEO+baby支架 前交通动脉瘤 蛛网膜下腔出血 弹簧圈栓塞 并发症
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Methionine Levels in the Diet for Pregnant Female Rabbits Affects Hair Follicles Development of Baby Rabbits 被引量:1
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作者 ZHOU Qin-fei TAO Ke +2 位作者 WANG Yong-cai XIAO Wen-chuan WANG Wei-lin 《Animal Husbandry and Feed Science》 CAS 2012年第5期193-196,共4页
[ Objective] This experiment was conducted to study methionine level in diet for prepnant famale rabbits on the development of hair follicles of baby rabbits. [ Method] Fifty-four Angora female rabbits with similar bo... [ Objective] This experiment was conducted to study methionine level in diet for prepnant famale rabbits on the development of hair follicles of baby rabbits. [ Method] Fifty-four Angora female rabbits with similar body weight, parities and historicaly hair yield were randomly assigned to three groups with eighteen replicates in each group and one rabbit per replicate. Rabbits during pregnancy were fed diets with 0.5!%, 0.71% and 0.91% methionine, respectively. Hair follicle density and diameter in the back skin were determined at 18-day fetus. 26-day fetus, newborn and 2- month-old,and hair fiber diameter at 2-month-old was also determined. [ Result] The results showed as follows: (1) hair follicle density and diameter at each stage,coarse hair fiber diameter at 2-month. old showed a tendency of increasing with dietary methionine level( P 〉0.05), fine hair diameter in 0.91% group was significantly larger than that in 0.51% group at 2-month-old ( P 〈 0.05). (2) With the development of baby rabbit,the ratio of secondary follicle and primary follicle increased gradually, at newborn of rabbits in group 0.51%, 0.71% and 0.91%were 5.84, 5.56 and 5.81, respectively, and at 2-month-old were 8.47, 7.97 and 8.03, respectively. (3) Baby rabbits in group 0.51%, 0.71% and 0.91% gained increases of primary follicle diameter by 0.58, 0.57 and 0.61pm/d from 26-day fetus to birth, and 0.11,0.11 and 0.12 prn/d from birth to 2-month-old, re- spectively; they also gained increases on secondary follicle diameter by 0.0018,0. 012 and 0. 011prn/d from birth to 2-months-old, respectively. [ Conclusion] These results indicate that increase of methionine level in diet for female rabbits during pregnancy is a stimulation factor for the development of hair follicle of baby rabbits, and can improve their hair fiber diameter. 展开更多
关键词 Female rabbits baby rabbits METHIONINE Hair follicle development
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美国萱草——“All America Baby”的组培快繁研究
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作者 葛坤 王培军 《太原科技》 2008年第10期92-93,共2页
以"All Amarica Baby"萱草的幼嫩茎段作为研究对象,通过不同植物激素的质量浓度对外植体的影响,得出了最适宜的培养基配方,即"All America Baby"萱草最适宜的继代培养基为MS+0.2mg/L NAA+0.6 mg/L 6-BA+30 g/L蔗糖... 以"All Amarica Baby"萱草的幼嫩茎段作为研究对象,通过不同植物激素的质量浓度对外植体的影响,得出了最适宜的培养基配方,即"All America Baby"萱草最适宜的继代培养基为MS+0.2mg/L NAA+0.6 mg/L 6-BA+30 g/L蔗糖,生根培养基为1/2MS+0.4 mg/L NAA+30 g/L蔗糖。 展开更多
关键词 “All AMERICA baby”萱草 植物激素 培养技术
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Design of Automatic Baby Nursing Trolley based on Intelligent Sensing Technology 被引量:1
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作者 Chen Guoqing 《International Journal of Technology Management》 2014年第8期73-75,共3页
This paper study and solve the design and manufacture of baby care car, its unique function is the baby carriage can be used as a baby bed, when necessary, it can also become a nursing car, sensor in the vehicle can b... This paper study and solve the design and manufacture of baby care car, its unique function is the baby carriage can be used as a baby bed, when necessary, it can also become a nursing car, sensor in the vehicle can be real-time detected whether the baby bed wetting and induction time will give parents information feedback; the humidity sensing probe controlled by single chip microcomputer and with the bottle clamp flexible connecting rod, can realize the baby auxiliary nurse; remote wireless commtmication system can allow parents to monitor children' s state. The design of intelligent baby carriage, to enhance the technological content of products, promote the innovation of design China bassinet production, has the important practical significance to seize the smart baby car market. 展开更多
关键词 RFID Automatic baby cradle DC motor speed control Voice control
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