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Eruption Sequence of the Lower Permanent Dentition of Lufengpithecus lufengensis

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人类学学报 2002年第S1期21卷 14-18页

作者： zhao ling-xia LU Qing-wu HE Zhu-fang Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of SciencesBeijing 100044China Taiyuan University of Technology Taiyuan 030024China

The paper aims to reconstruct the eruption sequence of the permanent teeth of Lufengpithecus lufengensis. Eruption sequence here means the order of appearance of the tooth crowns out of the alveolar crypt. The permanent dental developments of five juvenile mandibles are observed and analyzed via radiograph. Using such records as the stages of crown and root formation, location of the crown occlusion relative to the alveolar margin, and wear degrees of the erupted teeth, the eruption sequence of the mandibular permanent teeth of Lufengpithecus lufengensis is reasonably derived as M1 I1 I2 M2 P3 P4 C M3. This order is seen to differ very markedly from that in modern humans, and to be similar to that in apes.

关键词： Eruption sequence of mandible dentition Lufengpithecus lufengensis

Novel wood-plastic composite fabricated via modified steel slag:Preparation,mechanical and flammability properties

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International Journal of Minerals,Metallurgy and Materials 2024年第9期31卷 2110-2120页

作者： ling zhao Kai zhao Zhenwei Shen Yifan Wang xiaojie xia Hao Zhang Hongming Long School of Metallurgical Engineering Anhui University of TechnologyMa’anshan 243032China School of Civil Engineering and Architecture Anhui University of TechnologyMa’anshan 243032China School of Materials Science and Engineering Anhui University of TechnologyMa’anshan 243032China Key Laboratory of Metallurgical Emission Reduction and Resources Recycling(Anhui University of Technology) Ministry of EducationMa’anshan 243002China

A novel method was developed to enhance the utilization rate of steel slag(SS).Through treatment of SS with phosphoric acid and aminopropyl triethoxysilane(KH550),we obtained modified SS(MSS),which was used to prepare MSS/wood-plastic composites(MSS/WPCs)by replacing talcum powder(TP).The composites were fabricated through melting blending and hot *** mechanical and combustion properties,which comprise heat release,smoke release,and thermal stability,were systematically *** can improve the mechanical strength of the composites through grafting reactions between wood powder and ***,MSS/WPC#50(16wt%MSS)with an MSS-to-TP mass ratio of 1:1 exhibited optimal comprehensive *** with those of WPC#0 without MSS,the tensile,flexural,and impact strengths of MSS/WPC#50 were increased by 18.5%,12.8%,and 18.0%,***,the MSS/WPC#50 sample achieved the highest limited oxygen index of 22.5%,the highest vertical burning rating at the V-1 level,and the lowest horizontal burning rate at 44.2 mm/*** formation of a dense and stable char layer led to improved thermal stability and a considerable reduction in heat and smoke releases of MSS/WPC#***,the partial replacement of TP with MSS slightly compromised the mechanical and flame-retardant properties,possibly due to the weak grafting caused by SS powder *** findings suggest the suitability of MSS/WPCs for high-value-added applications as decorative panels indoors or outdoors.

关键词： modified steel slag wood–plastic composites preparation method mechanical property flame retardant

Synthesis and structural analysis of ^(13)C-fatty acids

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Nuclear Science and Techniques 2000年第1期11卷 17-21页

作者： WANG Hui-Qiong zhao xia-ling TANG Guo-Zhong (Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800) 中科院上海原子核所上海 201800

The 13C-labeled fatty acids octanoic-1-13C acid and palmitic-1-13C acid were synthetically prepared from Ba 13CO3. The yield of the former was more than 90% and that of the latter was above 85%. MS, IR, 1H-NMR and 13N... 详细信息

关键词：碳13脂肪酸合成结构表征质谱红外光谱核磁共振氢谱核磁共振碳谱

Ginsenoside Rd Induces Differentiation of Myeloid Leukemia Cells via Regulating ERK/GSK-3βSignaling Pathway

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Chinese Journal of Integrative Medicine 2024年第7期30卷 588-599页

作者： JIANG Yu-xia zhao Yan-na YU xiao-ling YIN Li-ming Department of Hematology Tongde Hospital of Zhejiang ProvinceHangzhou310012China Institute of Hematology Research the First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Chinese Medicine)Hangzhou310006China

Objective To investigate the role of ginsenoside Rd(GRd)in acute myeloid leukemia(AML)cell *** AML cells were treated with GRd(25,50,100 and 200µg/mL),retinoic acid(RA,0.1g/L)and PD98059(20 mg/mL)for 72 h,cell survival was detected by methylthiazolyldiphenyl-tetrazolium bromide and colony formation assays,and cell cycle was detected by flow *** morphology and differentiation were observed by Wright-Giemsa staining,peroxidase chemical staining and cellular immunochemistry assay,*** protein expression levels of GATA binding protein 1(GATA-1),purine rich Box-1(PU.1),phosphorylated-extracellular signal-related kinase(p-ERK),ERK,phosphorylated-glycogen synthase kinase-3β(p-GSK3β),GSK3βand signal transducer and activator of transcription 1(STAT1)were detected by Western ***-six mice were randomly divided into 3 groups using a random number table:model control group(non-treated),GRd group[treated with 200 mg/(kg·d)GRd]and homoharringtonine(HTT)group[treated with 1 mg/(kg·d)HTT].A tumor-bearing nude mouse model was established,and tumor weight and volume were *** of subcutaneous tumor tissue were observed after hematoxylin and eosin ***1 and GATA-1 expressions were detected by immunohistochemical *** The cell survival was inhibited by GRd in a dose-dependent manner and GRd caused G0/G1 cell arrest(p<0.05).GRd treatment induced leukemia cell differentiation,showing increased expressions of peroxidase and specific proteins concerning erythrogenic or granulocytic differentiation(p<0.05).GRd treatment elicited upregulation of p-ERK,p-GSK-3βand STAT1 expressions in cells,and reversed the effects of PD98059 on inhibiting the expressions of peroxidase,GATA-1 and PU.1(P<0.05).After GRd treatment,tumor weight and volume of mice were decreased,and tumor cells underwent massive apoptosis and necrosis(P<0.05).WT1 level was decreased,and GATA-1 level was significantly increased in subcutaneous tumor ti

关键词： ginsenoside Rd myeloid leukemia survival differentiation extracellular signal-related kinase signaling pathway

A Fourth-order Covergence Newton-type Method

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Chinese Quarterly Journal of Mathematics 2008年第4期23卷 589-593页

作者： WANG xia zhao ling-ling Department of Mathematic and Information Science Zhengzhou University of Light Industry Zhengzhou 450002 China

A fourth-order convergence method of solving roots for nonlinear equation, which is a variant of Newton＇s method given. Its convergence properties is proved. It is at least fourth-order convergence near simple roots and one order convergence near multiple roots. In the end, numerical tests are given and compared with other known Newton and Newton-type methods. The results show that the proposed method has some more advantages than others. It enriches the methods to find the roots of non-linear equations and it is important in both theory and application.

关键词： Newton iteration method root-finding method fourth-order convergence numerical test

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气溶胶卫星滴结构粒子与灰霾天气的相关性

华南理工大学学报（自然科学版） 2006年第5期34卷 5-10页

作者：钱公望赵灵霞华南理工大学制浆造纸工程国家重点实验室广东广州510640

将广州灰霾天气中的单个气溶胶颗粒物分为粗粒子(半径R>1.0μm)和细粒子(半径R≤1.0μm)两部分,将它们采集在采集膜上,用透射电子显微镜对粒子进行形态分析.分析结果发现:灰霾天气形成前后的气溶胶细颗粒物的形态结构有着明显的差异;气... 详细信息

将广州灰霾天气中的单个气溶胶颗粒物分为粗粒子(半径R>1.0μm)和细粒子(半径R≤1.0μm)两部分,将它们采集在采集膜上,用透射电子显微镜对粒子进行形态分析.分析结果发现:灰霾天气形成前后的气溶胶细颗粒物的形态结构有着明显的差异;气溶胶中的卫星滴结构粒子与灰霾天气的形成具有较好的相关性;在灰霾天气发生过程中,酸性粒子增多.

关键词：灰霾卫星滴结构相关性单个粒子

Personalized and continuous care intervention affects rehabilitation,living quality,and negative emotions of patients with breast cancer

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World Journal of Psychiatry 2024年第6期14卷 876-883页

作者： ling-xia Kong Yan-Hong zhao Zhi-Lin Feng Ting-Ting Liu Department of Breast Surgery The First Affiliated Hospital of Hebei North UniversityZhangjiakou 075000Hebei ProvinceChina Operating Room The First Affiliated Hospital of Hebei North UniversityZhangjiakou 075000Hebei ProvinceChina

BACKGROUND Breast cancer is among the most common malignancies *** progress in treatment methods and levels,the overall survival period has been prolonged,and the demand for quality care has *** To investigate the effect of individualized and continuous care intervention in patients with breast *** Two hundred patients with breast cancer who received systemic therapy at The First Affiliated Hospital of Hebei North University(January 2021 to July 2023)were retrospectively selected as research *** them,134 received routine care intervention(routing group)and 66 received personalized and continuous care(intervention group).Self-rating anxiety scale(SAS),self-rating depression scale(SDS),and Functional Assessment of Cancer Therapy-Breast(FACT-B)scores,including limb shoulder joint activity,complication rate,and care satisfaction,were compared between both groups after *** SAS and SDS scores were lower in the intervention group than in the routing group at one and three months after *** total FACT-B scores and five dimensions in the intervention group were higher than those in the routing group at three months of *** range of motion of shoulder anteflexion,posterior extension,abduction,internal rotation,and external rotation in the intervention group was higher than that in the routing group one month after *** incidence of postoperative complications was 18.18%lower in the intervention group than in the routing group(34.33%;P<0.05).Satisfaction with care was 90.91% higher in the intervention group than in the routing group(78.36%;P<0.05).CONCLUSION Personalized and continuous care can alleviate negative emotions in patients with breast cancer,quicken rehabilitation of limb function,decrease the incidence of complications,and improve living quality and care satisfaction.

关键词： Breast cancer Personalized care Continuous care Negative emotions Living quality Rehabilitation effect

Editable semiconductor photo-electrodes for sustainable ammonia synthesis

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Nano Research 2024年第4期17卷 3107-3112页

作者： Ning Lan Kun Du Erling zhao Wei zhao Tao ling Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education Institute of New-EnergySchool of Materials Science and EngineeringTianjin UniversityTianjin 300072China School of Materials Science and Engineering Tianjin Chengjian UniversityTianjin 300384China

Powered by an inexhaustible supply of solar energy,photoelectrochemical(PEC)nitrogen reduction reaction(NRR)provides an ideal solution for the synthesis of green ammonia(NH_(3)).Although great efforts have been made in the past decades,there are still significant challenges in increasing the NH_(3) yields of the PEC-NRR *** addition to the issues of low activity and selectivity similar to electrochemical NRR,the progress of PEC-NRR is also impeded by the limited increase in NH_(3) yields as the electrode is ***,we propose an editable electrode design strategy that parallels unit photo-electrodes to achieve a linear increase in NH_(3) yields with electrode active *** demonstrate that the editable electrode design strategy minimizes the electrode charge transfer resistance,allowing more photo-generated carriers to reach the electrode surface and promote the catalytic *** believe that this editable electrode design strategy provides an avenue to achieve sustainable PEC NH_(3) production.

关键词： editable electrode photoelectrochemical nitrogen reduction reaction parallel electrode ZnSe

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肝片吸虫检测方法概述

动物医学进展 2024年第7期45卷 114-119页

作者：周愉乐唐文强赵霞玲甘富斌切德力石斌李鑫秋益多杰吉布黄福强省部共建青稞和牦牛种质资源与遗传改良国家重点实验室西藏拉萨850002 西藏自治区农牧科学院畜牧兽医研究所西藏拉萨850009 佛山科学技术学院生命科学与工程学院广东佛山528225 林芝市农业农村局畜牧兽医站(动物疫病预防控制中心) 西藏林芝860200 海北州刚察县农畜产品质量安全检验检测中心青海海北812300 聂荣县聂荣镇农牧综合服务中心西藏那曲852000 聂荣县林草站西藏那曲852000

肝片吸虫是一种人兽共患寄生虫,是目前全世界分布最广泛的吸虫之一,能感染包括人在内的多种哺乳动物,引起肝片吸虫病,不仅严重危害人类健康,还影响畜牧养殖业的发展,造成巨大的经济损失。肝片吸虫因其复杂的生活史和种类广泛的中间宿主... 详细信息

肝片吸虫是一种人兽共患寄生虫,是目前全世界分布最广泛的吸虫之一,能感染包括人在内的多种哺乳动物,引起肝片吸虫病,不仅严重危害人类健康,还影响畜牧养殖业的发展,造成巨大的经济损失。肝片吸虫因其复杂的生活史和种类广泛的中间宿主和终末宿主,导致其致病机制尚不明确,且肝片吸虫感染引起的动物临床症状与其他肝胆疾病类似,主要表现为急性或慢性肝炎和胆管炎,没有特征性症状,极易被误诊。因此,及时、准确的检测对防治肝片吸虫病尤为重要。目前,肝片吸虫的检测主要依赖病原学、免疫学、分子生物学等手段,论文就肝片吸虫检测方法的研究进展进行综述,分析各项技术的优点与局限性,以期为肝片吸虫病检测方法的研究和发展提供参考。

关键词：肝片吸虫肝片吸虫病分子生物学检测方法