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Picotesla fiberized diamond-based AC magnetometer

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Photonics Research 2024年第6期12卷 1250-1261页

作者： SHAO-CHUN ZHANG YONG liu LONG-KUN SHAN XUE-DONG GAO JIA-QI GENG CUI YU YANG DONG XIANG-DONG CHEN GUANG-CAN GUO FANG-WEN SUN CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China National Key Laboratory of ASIC Hebei Semiconductor Research InstituteShijiazhuang 050051China Electric Power Quantum Sensing Joint Laboratory of Anhui Province State Grid Anhui Electric Power Research InstituteHefei 230601China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China

Portable quantum sensors are crucial for developing practical quantum sensing and metrology *** nitrogen-vacancy(NV)centers in diamonds have emerged as one of the most promising candidates for compact quantum ***,due to the difficulty of coherently controlling the ensemble spin and noise suppression in a large volume,it often faces problems such as reduced sensitivity and narrowed bandwidth in integrated lensless ***,we propose a fluorescence signal treatment method for NV spin ensemble manipulation by the exponential fitting of spin polarization processes,instead of integrating the photon *** enables spin state readout with a high signal-to-noise ratio and applies to the pulse sensing protocols for large-volume NV *** on this,we further developed a fiberized diamond-based AC *** an xy8-N dynamical decoupling pulse sequence,we demonstrated a T_(2)-limited sensitivity of 8pT/√Hz and T_(1)-limited frequency resolution of 90 Hz over a wide frequency band from 100 kHz to 3 *** integrated diamond sensor leverages quantum coherence to achieve enhanced sensitivity in detecting AC magnetic fields,making it suitable for implementation in a compact and portable endoscopic sensor.

关键词： magnetometer quantum ensemble

骨形态发生蛋白对去势大鼠股骨颈骨形态、骨密度和骨生物力学的影响

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中国组织工程研究与临床康复 2007年第27期11卷 5273-5276页

作者：汪玉海刘兴炎白孟海葛宝丰陈克明吕明波解放军兰州军区兰州总医院创伤骨科甘肃省兰州市730050

目的:观察在去势大鼠股骨颈植入牛骨形成蛋白后其骨形态、骨密度及骨强度的变化。方法:实验于2006-06/12在解放军兰州军区兰州总医院骨科研究所完成。①实验材料:普通级3个月龄wistar雌性大鼠60只。骨形态发生蛋白冻干粉剂(从幼龄牦牛... 详细信息

目的:观察在去势大鼠股骨颈植入牛骨形成蛋白后其骨形态、骨密度及骨强度的变化。方法:实验于2006-06/12在解放军兰州军区兰州总医院骨科研究所完成。①实验材料:普通级3个月龄wistar雌性大鼠60只。骨形态发生蛋白冻干粉剂(从幼龄牦牛新鲜长骨皮质中提取)。②实验分组:以同一只大鼠左右肢体为对照,右侧为实验侧,左侧为对照侧。③大鼠摘除卵巢制作绝经后骨质疏松模型经双能X射线骨密度仪检测筛选出造模成功的44只大鼠,实验侧距大转子0.5cm处股骨颈植入牛骨形成蛋白冻干粉剂,对照侧植入牛血清白蛋白。④实验评估:术后4周、8周时麻醉下处死大鼠取材,应用苏木精-伊红染色,组织切片后光镜下观察、CT扫描、双能X射线骨密度仪及万能生物力学机观察大鼠股骨颈骨形态学、骨皮质厚度、骨密度及骨强度的变化。结果:纳入造模成功后的44只大鼠均进入结果分析。①股骨颈骨组织形态学观察:4周时实验侧股骨颈局部骨小梁完整、连续性尚好;对照侧股骨颈局部骨小梁稀少、连续性中断,不完整。8周时实验侧股骨颈骨小梁致密,数量增多、完整,连接成网状结构、分布均匀;对照侧股骨颈骨小梁稀疏、变细、间距变大,呈髓腔扩大。②骨皮质厚度、骨密度及生物力学测定:4周时实验侧和对照侧股骨颈皮质厚度无明显差异,骨密度及最大载荷有明显差异(P<0.05);8周实验侧较对照侧骨皮质厚度明显增加、骨密度、最大载荷均增高[皮质厚度:(2.632±0.042),(1.728±0.034)mm,骨密度:(0.210±0.026),(0.182±0.029)g/mm2,最大载荷:(97.2±8.1),(85.6±7.9)N,P均<0.05]。结论:植入牛骨形成蛋白可以提高去势大鼠股骨颈局部骨皮质厚度、骨密度及生物力学强度,这将可能为绝经后骨质疏松性股骨颈骨折的防治提供一种新的途径。

关键词：骨形态发生蛋白质类骨质疏松,绝经后骨折卵巢切除术组织构建

外周神经损伤后的保护因子Adcyap1--促进外周神经再生并缓解疼痛

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中国疼痛医学杂志 2024年第7期30卷 555-555页

作者：刘风雨北京大学神经科学研究所

外周神经损伤(peripheral nerve injury,PNI)导致运动障碍和神经病理性疼痛。在临床PNI的治疗过程中,如何促进神经再生并缓解疼痛,至关重要。然而,现有的神经病理性疼痛模型并不能准确地模拟临床PNI。另外,科学家通常单独研究PNI神经再... 详细信息

外周神经损伤(peripheral nerve injury,PNI)导致运动障碍和神经病理性疼痛。在临床PNI的治疗过程中,如何促进神经再生并缓解疼痛,至关重要。然而,现有的神经病理性疼痛模型并不能准确地模拟临床PNI。另外,科学家通常单独研究PNI神经再生和神经病理性疼痛,缺乏对两者内在联系的探讨。本研究目的:建立新的PNI模型,研究神经再生和神经病理性疼痛之间的内在联系,寻找潜在的治疗靶点。

关键词：神经病理性疼痛缓解疼痛外周神经损伤神经再生模拟临床保护因子运动障碍治疗靶点

Clinical study of neutrophil-to-lymphocyte ratio and platelet-tolymphocyte ratio in hypertriglyceridemia-induced acute pancreatitis and acute biliary pancreatitis with persistent organ failure

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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1647-1659页

作者： Mu-Sen Xu Jia-Le Xu Xin Gao Shao-Jian Mo Jia-Yu Xing Jia-Hang liu Yan-Zhang Tian Xi-Feng Fu The Third Hospital of Shanxi Medical University Shanxi Bethune HospitalShanxi Academy of Medical SciencesTongji Shanxi HospitalTaiyuan 030032Shanxi ProvinceChina Department of Environmental Health School of Public HealthShanxi Medical UniversityTaiyuan 030032Shanxi ProvinceChina

BACKGROUND The neutrophil-to-lymphocyte ratio(NLR)and platelet-to-lymphocyte ratio(PLR)are novel inflammatory indicators that can be used to predict the severity and prognosis of various *** categorize acute pancreatitis by etiology into acute biliary pancreatitis(ABP)and hypertriglyceridemia-induced acute pancreatitis(HTGP).AIM To investigate the clinical significance of NLR and PLR in assessing persistent organ failure(POF)in HTGP and *** A total of 1450 patients diagnosed with acute pancreatitis(AP)for the first time at Shanxi Bethune Hospital between January 2012 and January 2023 were *** patients were categorized into two groups according to the etiology of AP:ABP in 530 patients and HTGP in 241 *** collected and compared the clinical data of the patients,including NLR,PLR,and AP prognostic scoring systems,within 48 h of hospital *** The NLR(9.1 vs 6.9,P<0.001)and PLR(203.1 vs 160.5,P<0.001)were significantly higher in the ABP group than in the HTGP *** the HTGP group,both NLR and PLR were significantly increased in patients with severe AP and those with a SOFA score≥***,in the ABP group,NLR and PLR were significantly elevated in patients with severe AP,modified computed tomography severity index score≥4,Japanese Severity Score≥3,and modified Marshall score≥***,NLR and PLR showed predictive value for the development of POF in both the ABP and HTGP *** NLR and PLR vary between ABP and HTGP,are strongly associated with AP prognostic scoring systems,and have predictive potential for the occurrence of POF in both ABP and HTGP.

关键词： Acute pancreatitis Gallstone Hypertriglyceridemia Neutrophil-to-lymphocyte ratio Platelet-to-lymphocyte ratio Persistent organ failure

CRISPR/CasRx-mediated resistance to Soybean mosaic virus in soybean

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The Crop Journal 2024年第4期12卷 1093-1101页

作者： Le Gao Lijun Xie Yanmin Xiao Xinge Cheng Ruosi Pu Ziheng Zhang Yu liu Shaopei Gao Zilong Zhang Haoran Qu Haijian Zhi Kai Li MARA Key Laboratory of Biology and Genetics Improvement of Soybean Zhongshan Biological Breeding Laboratory(ZSBBL)National Innovation Platform for Soybean Breeding and Industry-Education IntegrationState Key Laboratory of Crop Genetics&Germplasm Enhancement and UtilizationNanjing Agricultural UniversityNanjing 210095JiangsuChina Department of Horticulture Beijing Vocational College of AgricultureBeijing 102442China College of Agronomy&Biotechnology China Agricultural UniversityBeijing 100193China College of Bioscience and Biotechnology Shenyang Agricultural UniversityShenyang 110866LiaoningChina

Soybean mosaic virus(SMV),an RNA virus,is the most common and destructive pathogenic virus in soybean *** newly developed CRISPR/Cas immune system has provided a novel strategy for improving plant resistance to viruses;hence,this study aimed to engineer SMV resistance in soybean using this ***,multiple sgRNAs were designed to target positive-and/or negative-sense strands of the SMV HC-Pro ***,the corresponding CRISPR/CasRx vectors were constructed and transformed into *** inoculation with SMV,39.02%,35.77%,and 18.70%of T_(1)plants were confirmed to be highly resistant(HR),resistant(R),and mildly resistant(MR)to SMV,respectively,whereas only 6.50%were identified as susceptible(S).Additionally,qRT-PCR and DAS-ELISA showed that,both at 15 and 30 d post-inoculation(dpi),SMV accumulation significantly decreased or was even undetectable in HR and R plants,followed by MR and S ***,the expression level of the CasRx gene varied in almost all T_(1)plants with different resistance level,both at 15 and 30 ***,when SMV resistance was evaluated in the T_(2)generation,the results were similar to those recorded for the T_(1)*** findings provide new insights into the application of the CRISPR/CasRx system for soybean improvement and offer a promising alternative strategy for breeding for resistance to biotic stress that will contribute to the development of SMV-immune soybean germplasm to accelerate progress towards greater soybean crop productivity.

关键词： Soybean RNA virus Soybean mosaic virus Resistance CRISPR/CasRx

多普勒图像评估卡维地洛影响充血性心力衰竭患者左室功能变化的特征

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中国组织工程研究与临床康复 2007年第13期11卷 2537-2539页

作者：徐金兰左希宏沙亚宾韩春英刘晓云张承俊济南市第一人民医院心内科山东省济南市250011

目的:应用无创伤性的多普勒技术评估卡维地洛对充血性心力衰竭患者左室功能影响。方法:于2003-08/2005-09选择济南市第一人民医院心内科住院的心力衰竭患者60例,按随机数字表法分为两组,卡维地洛组和常规治疗组,每组30例。卡维地洛组在... 详细信息

目的:应用无创伤性的多普勒技术评估卡维地洛对充血性心力衰竭患者左室功能影响。方法:于2003-08/2005-09选择济南市第一人民医院心内科住院的心力衰竭患者60例,按随机数字表法分为两组,卡维地洛组和常规治疗组,每组30例。卡维地洛组在给予洋地黄、利尿剂等药物常规抗心力衰竭的基础上加用卡维地洛,起始剂量3.125mg,1次/d,1周后逐渐增量为3.125mg,2次/d。4周后增量为6.25mg,2次/d。若患者病情稳定,8周后增量为12.5mg,2次/d,此剂量维持6个月。常规治疗组除不用卡维地洛外其他治疗相同。两组患者在服药前及服药6个月后观察心功能分级,应用超声心动图测量心脏形态的变化,心脏收缩和舒张功能指标。结果:①心功能分级:卡维地洛长期服用能使患者心功能分级得到改善,治疗效果优于常规治疗(卡维地洛治疗后心功能Ⅰ级、Ⅱ级、Ⅲ级、Ⅳ级分别为14,10,6,0例;常规治疗后心功能Ⅰ级、Ⅱ级、Ⅲ级、Ⅳ级分别为4,9,13,4例)。②心脏形态:卡维地洛治疗后左房、左室内径小于治疗前[分别为(33.4±11.6),(46.5±9.6)mm;(57.8±5.6),(64.8±6.5)mm],差异有显著性意义(t=4.4688,P0.05)。两组右房、右室内径及室间隔、左室后壁厚度治疗前后亦无明显变化。③心脏收缩和舒张功能指标:卡维地洛组患者治疗6个月后左室的收缩和舒张功能明显改善,表现在左室最大上升速率、主动脉血流最大速度及左室最大下降速率的绝对值增大,左室射血分数升高,左室射血前期、左室射血时间、加速时间缩短,左室等容舒张期时间缩短,二尖瓣血流舒张早期最大流速升高,二尖瓣血流心房收缩期最大流速降低,E波与A波流速比值升高。结论:超声心动图结果显示,卡维地洛能明显改善充血性心力衰竭患者左室的收缩和舒张功能,减轻左心室的重构。

关键词：充血性心力衰竭卡维地洛超声心动图

Two advances on the photoelectric parallel measuring of spectrum

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Chinese Science Bulletin 1997年第23期42卷 1965-1970页

作者： Lin, LZ Pu, xy Zhang, J Wen, XM liu, QJ Yunnan Univ Dept Phys Kunming 650091 Peoples R China

THE tendency of the technique of spectral measurement is now towards sensitivity, precision,quickness, time and spatial resolving spectrum. For the spectrophotometers, which acquirespectral data with the serious method, the measurement of spectral intensity for differentwavelengths is not simultaneous. It is difficult to quickly get a spectrum, because time must bespent on tuning the dispersive device, and it is also impossible to process time and spatial Te-solving spectrum. The problems mentioned above are the fatal disadvantages for further devel-oping the spectrophotometer equipped with monochromator. The best way to solve these prob-

关键词： photoelectric parallel measuring of spectrum system’ s resolving power simultaneous spectral width multilayer gratings polychromator.

农药最大残留限量标准差异对我国茶叶出口RCEP成员国的贸易效率影响研究——基于随机前沿引力模型

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茶叶科学 2024年第3期44卷 526-542页

作者：霍增辉柳畅张玫陈富桥刘仲华中国计量大学经济与管理学院浙江杭州310018 浙江水利水电学院经济与管理学院浙江杭州310018 中国农业科学院茶叶研究所浙江杭州310008 湖南农业大学湖南长沙410128

目前,茶叶外贸面临着来自技术性贸易壁垒的挑战,以农药最大残留限量(MRLs)标准差异为切入点,构建异质性贸易指数(HIT)量化各国农药MRLs的具体差异,利用随机前沿引力模型研究农药MRLs标准差异对我国茶叶出口区域全面经济伙伴关系协定(RC... 详细信息

目前,茶叶外贸面临着来自技术性贸易壁垒的挑战,以农药最大残留限量(MRLs)标准差异为切入点,构建异质性贸易指数(HIT)量化各国农药MRLs的具体差异,利用随机前沿引力模型研究农药MRLs标准差异对我国茶叶出口区域全面经济伙伴关系协定(RCEP)国家的贸易效率的影响。结果表明,中国与RCEP成员国的农药MRLs标准存在差异,但总体呈缩小的趋势。中国与RCEP成员国的农药MRLs标准的负面差异会导致中国出口茶叶的贸易效率降低;抑制作用路径表现为显著降低了茶叶出口额和出口单价。我国应进一步完善农药MRLs标准体系,使之与国际标准接轨,推动RCEP区域内国家间的标准互认,减小贸易壁垒的不利影响。

关键词：农药最大残留限量标准差异茶叶贸易效率随机前沿引力模型异质性贸易指数

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玉米籽粒后熟品质性状主成分分析与综合评价

食品科学 2024年第11期45卷 1-7页

作者：曹勇许秀颖蔡丹刘回民张浩赵城彬郑明珠刘景圣吉林农业大学食品科学与工程学院小麦和玉米深加工国家工程研究中心吉林长春130118

为科学评价玉米在后熟阶段籽粒的生理特征和营养品质,对郑单958(Zd958)和先玉335(xy335)两个品种玉米籽粒在后熟过程中的14个生理生化和品质性状指标,包括水分含量与状态、呼吸速率、可溶性糖含量、α-淀粉酶活性、过氧化氢酶活性、过... 详细信息

为科学评价玉米在后熟阶段籽粒的生理特征和营养品质,对郑单958(Zd958)和先玉335(xy335)两个品种玉米籽粒在后熟过程中的14个生理生化和品质性状指标,包括水分含量与状态、呼吸速率、可溶性糖含量、α-淀粉酶活性、过氧化氢酶活性、过氧化物酶活性、己糖激酶活性、异柠檬酸脱氢酶活性、脂肪酸值、淀粉含量、千粒质量和快消化淀粉含量变化进行分析与综合评价。结果表明,玉米籽粒在后熟过程中的品质性状变化存在显著差异(Pxy335的后熟时间分别为50、30d。本研究结果可以为新玉米后熟品质的判定及玉米的加工利用提供参考。

关键词：玉米后熟品质性状主成分分析综合评价