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低次太阳振荡引力模的探测与证认在径向阶数上的扩展

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中国科学（A辑） 1989年第12期20卷 1296-1304页

作者： henry a.hill 顾益民亚利桑那大学物理系南京大学天文系

本文重新考察了1979年太阳微分半径观测资料,以期获得引力模(g-模)存在的进一步证据。在模式探测与证认过程中采用的基本判据是由hill在1984年建立的。这里采用了文献[2]中证认的31组多重线作为本工作的起点。我们发现了更多引力模存在... 详细信息

本文重新考察了1979年太阳微分半径观测资料,以期获得引力模(g-模)存在的进一步证据。在模式探测与证认过程中采用的基本判据是由hill在1984年建立的。这里采用了文献[2]中证认的31组多重线作为本工作的起点。我们发现了更多引力模存在的有统计意义的证据,并将多重线的数目由31组扩展到53组。这53组多重线的角向次数与径向阶数分别为l=1,n=4,…,7;l=2,n=6,…,13,15,16;l=3,n=7,…,20;l=4,n=7,…,20;l=5,n=16,…,26,多重线中m=0的本征频率的测量精度为0.02μHz,相对于角向级数m线性的多重线结构的测量精度为0.01μHz。

关键词：太阳振荡太阳内部结构引力模

The Transport and Persistence of Escherichia coli in Leachate from Poultry Litter Amended Soils

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Open Journal of Soil Science 2024年第4期14卷 269-282页

作者： Lorra Belle hill School of Arts and Sciences Department Natural Science Stillman College Tuscaloosa USA

Fecal coliform bacteria such as Escherichia coli (E. coli) are one of the main sources of groundwater pollution. An assessment of the transport and Persistence of E. coli in poultry litter amended Decatur silty Clay soil and Hartsells Sandy soil was conducted using soil columns and simulated groundwater leaching. Enumeration of initial E. coli was determined to range from 2.851 × 103 to 3.044 × 103 CFU per gram of soil. These results have been used in a batch study to determine the persistence rate of E. coli in Decatur silty Clay soil and Hartsells Sandy soil. Results prove that E. coli survival growth rate increases for clay soil later than and at a higher rate than sandy soil. The column study has determined that E. coli was transported at a rate of 3.7 × 106 CFU for Decatur silty loam and 6.3 × 106 CFU for Hartsells sandy per gram of soil. Further, linear regression analysis predictions show higher porosity and soil moisture content affect transport, and Hartsells sandy soil has higher transport of E. coli due to its higher porosity and lower volumetric water content.

关键词： Transport Leachate Persistence Poultry Litter E. coli

A 3D In-vitro model of the human dentine interface shows long-range osteoinduction from the dentine surface

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International Journal of Oral Science 2024年第2期16卷 225-237页

作者： William Macalester Asme Boussahel Rafael O.Moreno-Tortolero Mark R.Shannon Nicola West Darryl hill Adam Perriman School of Cellular and Molecular Medicine Biomedical Sciences BuildingUniversity of BristolUniversity WalkBristolUnited Kingdom Bristol Centre for Functional Nanomaterials HH Wills Physics LaboratoryUniversity of BristolTyndall AvenueBristolUnited Kingdom Centre for Protolife Research School of ChemistryUniversity of BristolCantocks CloseBristolUnited Kingdom Max Planck-Bristol Centre for Minimal Biology School of ChemistryUniversity of BristolBristolUnited Kingdom Periodontology Bristol Dental SchoolUniversity of BristolLower Maudlin StreetBristolUnited Kingdom

Emerging regenerative cell therapies for alveolar bone loss have begun to explore the use of cell laden hydrogels for minimally invasive surgery to treat small and spatially complex maxilla-oral ***,the oral cavity presents a unique and challenging environment for in vivo bone tissue engineering,exhibiting both hard and soft periodontal tissue as well as acting as key biocenosis for many distinct microbial communities that interact with both the external environment and internal body systems,which will impact on cell fate and subsequent treatment ***,we design and bioprint a facile 3D in vitro model of a human dentine interface to probe the effect of the dentine surface on human mesenchymal stem cells(hMSCs)encapsulated in a microporous hydrogel *** demonstrate that the dentine substrate induces osteogenic differentiation of encapsulated hMSCs,and that both dentine andβ-tricalcium phosphate substrates stimulate extracellular matrix production and maturation at the gel-media interface,which is distal to the gel-substrate *** findings demonstrate the potential for long-range effects on stem cells by mineralized surfaces during bone tissue engineering and provide a framework for the rapid development of 3D dentine-bone interface models.

关键词： interface den surface

A new class of crystalline X-ray induced photochromic materials assembled from anion-directed folding of a flexible cation

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Chinese Chemical Letters 2024年第8期35卷 554-557页

作者： Hong-Jin Liao Zhu Zhuo Qing Li Yoshihito Shiota Jonathan P.hill Katsuhiko Ariga Zi-Xiu Lu Lu-Yao Liu Zi-Ang Nan Wei Wang You-Gui Huang CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350007China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamen 361021China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China Institute for Materials Chemistry and Engineering Kyushu UniversityFukuoka 819-0395Japan World Premier International(WPI)Center for Materials Nanoarchitectonics(MANA) National Institute for Materials Science(NIMS)Ibaraki 305-0044Japan

Electron-deficient viologens are widely used as ligands or structure-directing agents(SDAs)to synthesize crystalline X-ray induced photochromic ***,a new rational strategy of anion-directed fold-ing a flexible cation(H_(2)imb)^(2+)((H_(2)imb)^(2+)=di-protonated 2,3-bis(imidazolin-2-yl)-2,3-dimethylbutane)has been ***-donating Cl−and(ZnCl4)2−are used to direct folding a flexible electron-deficient(H_(2)imb)^(2+)*** complexes(H_(2)imb)(NO_(3))2(1),(H_(2)imb)Cl2·H_(2)O(2),and(H_(2)imb)ZnCl4(3)have been synthesized in which(H_(2)imb)^(2+)crystallize in an anti-conformation,88.8°-gauche,and 51.8°-gauche,*** contrary to X-ray silent complex 1,X-ray induced photochromism has been achieved in both complex 2 and *** intermolecular charge-transfer mechanism has been elucidated and the anion directed folding of(H_(2)imb)^(2+)has been validated to be critical to yield colored long-lived charge-separated states.

关键词： Supramolecular Photochromic X-ray induced Anion-directed folding Electron-deficient viologens

Evaluating the Efficacy of Cervical Tactile Ultrasound Technique as a Predictive Tool for Spontaneous Preterm Birth

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Open Journal of Obstetrics and Gynecology 2024年第5期14卷 832-846页

作者： Vladimir Egorov Todd Rosen Jennifer hill Meena Khandelwal Victors Kurtenoks Brendan Francy Noune Sarvazyan Advanced Tactile Imaging Inc. Ewing New Jersey USA Department of Obstetrics Gynecology and Reproductive Sciences Rutgers Robert Wood Johnson Medical School New Brunswick New Jersey USA Department of Maternal-Fetal Medicine Cooper Medical School of Rowan University Camden New Jersey USA

Background: Premature cervical softening and shortening may be considered an early mechanical failure that predispose to preterm birth. Purpose: This study aims to explore the applicability of an innovative cervical tactile ultrasound approach for predicting spontaneous preterm birth (sPTB). Materials and Methods: Eligible participants were women with low-risk singleton pregnancies in their second trimester, enrolled in this prospective observational study. A Cervix Monitor (CM) device was designed with a vaginal probe comprising four tactile sensors and a single ultrasound transducer operating at 5 MHz. The probe enabled the application of controllable pressure to the external cervical surface, facilitating the acquisition of stress-strain data from both anterior and posterior cervical sectors. Gestational age at delivery was recorded and compared against cervical elasticity. Results: CM examination data were analyzed for 127 women at 240/7 - 286/7 gestational weeks. sPTB was observed in 6.3% of the cases. The preterm group exhibited a lower average cervical stress-to-strain ratio (elasticity) of 0.70 ± 0.26 kPa/mm compared to the term group’s 1.63 ± 0.65 kPa/mm with a p-value of 1.1 × 10−4. Diagnostic accuracy for predicting spontaneous preterm birth based solely on cervical elasticity data was found to be 95.0% (95% CI, 88.5 - 100.0). Conclusion: These findings suggest that measuring cervical elasticity with the designed tactile ultrasound probe has the potential to predict spontaneous preterm birth in a cost-effective manner.

关键词： Cervical Elasticity Spontaneous Preterm Birth Tactile Ultrasound Probe

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林肯路1111号扩建

世界建筑导报 2024年第3期39卷 108-110页

作者： Robin hill(摄) 不详

林肯大道1111号是一个经过改造改变了其原有用途的框架结构。经过数年的运作,这座位于林肯大道西端的建筑成功地进行了经济转型,通过进一步的开发,在对现有建筑进行改造的同时还增加了一个包含商业零售的新建筑,并且在原太阳信托公司办... 详细信息

林肯大道1111号是一个经过改造改变了其原有用途的框架结构。经过数年的运作,这座位于林肯大道西端的建筑成功地进行了经济转型,通过进一步的开发,在对现有建筑进行改造的同时还增加了一个包含商业零售的新建筑,并且在原太阳信托公司办公楼北面的空地上建起了一栋住宅楼。新建筑平衡了两个看似矛盾的目标。一方面,它需要一个强大和清晰的特征以吸引林肯大道上的行人。另一方面,新建筑是现有总体规划的扩建部分,它并没有与1111号停车场形成竞争的局面。

关键词：经济转型信托公司框架结构商业零售现有建筑扩建部分总体规划停车场

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记忆中的食物

中学生英语 2024年第35期 13-15页

作者： Miriam hill 杨舟

"Mom,thanks for making barbecued meatballs and rice before I left,"said Betsy with *** hugged me goodbye while her dad finished loading2the car with packed *** daughter was moving from our home in Florida to her apartment in Washington,*** begin her new job.“I'm really going to miss your cooking,"she added.“妈妈,谢谢你在我离开之前做了烤肉丸子和米饭。”贝齐泪眼朦胧地说。她和我拥抱道别,而她的父亲正在往车里装打包好的箱子。我女儿要从我们在佛罗里达的家搬到她在华盛顿特区的公寓以便开始她的新工作。“我真的会想念你做的饭菜的。”她补充道。

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The Transport and Persistence of Escherichia coli in Leachate from Poultry Litter Amended Soils

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Genomics-driven derivatization of the bioactive fungal sesterterpenoid variecolin:Creation of an unnatural analogue with improved anticancer properties

Open Journal of Soil Science（土壤科学期刊） 2024年第4期 269页

作者： Lorra Belle hill

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Acta Pharmaceutica Sinica B 2024年第1期14卷 421-432页

作者： Dexiu Yan Jemma Arakelyan Teng Wan Ritvik Raina Tsz Ki Chan Dohyun Ahn Vladimir Kushnarev Tsz Kiu Cheung Ho Ching Chan Inseo Choi Pui Yi Ho Feijun Hu Yujeong Kim hill Lam Lau Ying Lo Law Chi Seng Leung Chun Yin Tong Kai Kap Wong Wing Lam Yim Nikolay S.Karnaukhov Richard Y.C.Kong Maria V.Babak Yudai Matsuda Department of Chemistry City University of Hong KongHong Kong SARChina iGEM Team“VarieCure” City University of Hong KongHong Kong SARChina Department of Biomedical Engineering City University of Hong KongHong Kong SARChina Moscow Clinical Research Center Named After A.S.Loginov Moscow 111123Russian Federation

A biosynthetic gene cluster for the bioactive fungal sesterterpenoids variecolin(1)and variecolactone(2)was identified in Aspergillus aculeatus ATCC *** production of 1 and 2 was achieved in Aspergillus oryzae by expressing the sesterterpene synthase VrcA and the cytochrome P450 ***,the replacement of VrcB with homologous P450s from other fungal terpenoid pathways yielded three new variecolin analogues(5-7).Analysis of the compounds’anticancer activity in vitro and in vivo revealed that although 5 and 1 had comparable activities,5 was associated with significantly reduced toxic side effects in cancer-bearing mice,indicating its potentially broader therapeutic *** study describes the first tests of variecolin and its analogues in animals and demonstrates the utility of synthetic biology for creating molecules with improved biological activities.

关键词： Animal studies Anticancer properties Biosynthesis Natural products Sesterterpenoids Synthetic biology Terpene synthases Variecolin