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Iron Mobilization and Mineralogical Alterations Induced by Iron-deficient Cucumber Plants (Cucumis sativus L.) in a Calcareous Soil

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Pedosphere 2018年第1期28卷 59-69页

作者： Concetta Eliana GATTULLO Youry PII Ignazio ALLEGRETTA Luca MEdICI Stefano cesco Tanja MIMMO Roberto TERZANO department of Soil Plant and Food Sciences University of Bari "Aldo Moro" Faculty of Science and Technology Free University of Bozen/Bolzano Institute of Methodologies for Environmental Analysis National Research Council of Italy (I.M.A.A.-C.N.R.)

dicotyledons cope with ion(Fe) shortage by releasing low-molecular-weight organic compounds into the rhizosphere to mobilize Fe through reduction and complexation mechanisms. The effects induced by these root exudates on soil mineralogy and the connections between Fe mobilization and mineral weathering processes have not been completely clarified. In a batch experiment, we tested two different kinds of organic compounds commonly exuded by Fe-deficient plants, i.e., three organic acids(citrate, malate, and oxalate)and three flavonoids(rutin, quercetin, and genistein), alone or in combination, for their ability to mobilize Fe from a calcareous soil and modify its mineralogy. The effect of root exudates on soil mineralogy was assessed in vivo by cultivating Fe-deficient and Fe-sufficient cucumber plants(Cucumis sativus L.) in a RHIZOtest device. Mineralogical analyses were performed by X-ray powder diffraction. The batch experiment showed that citrate and, particularly, rutin(alone or combined with organic acids or genistein)promoted Fe mobilization from the soil. The combinations of rutin and organic acids modified the soil mineralogy by dissolving the amorphous fractions and promoting the formation of illite. These mineralogical alterations were significantly correlated with the amount of Fe mobilized from the soil. The RHIZOtest experiment revealed a drastic dissolution of amorphous components in the rhizosphere soil of Fe-deficient plants, possibly caused by the intense release of phenolics, amino acids, and organic acids, but without any formation of illite. Both batch and RHIZOtest experiments proved that exudates released by cucumber under Fe deficiency concurred to the rapid modification(on a day-scale) of the mineralogy of a calcareous soil.

关键词： flavonoids mineral weathering organic acids rhizosphere X-ray powder diffraction

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Chilling Tendency and Chill of Cast Iron

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Tsinghua Science and Technology 2008年第2期13卷 177-183页

作者： E. fraé M. Górny W. Kapturkiewicz H. López AGH University of Science and Technology University of Wisconsin-Milwaukee

An analytical expression is presented for the susceptibility of liquid cast iron to solidify according to the Fe-C-X metastable system （also known as the chilling tendency of cast iron, CT）. The analysis incorporates the nucleation and growth processes associated with the eutectic transformation. The CT is related to the physicochemical state of the liquid, the eutectic cells in the flake graphite, and the number of nodules in nodular cast iron. In particular, the CT can be related to the critical wall thickness, Scr, or the chill width, Wcr, in wedge shaped castings. Finally, this work serves as a guide for understanding the effect of technical factors such as the melt chemistry, the spheroidizing and inoculation practice, and the holding time and temperature on the resultant CT and chill of the cast iron. Theoretical calculations of Sc, and Wc, compare well with experimental data for flake graphite and nodular cast iron.

关键词： chill chilling tendency gray cast iron nodular cast iron

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氧化锑的毒性研究：——阻燃剂氧化锑和其它锑化合物对人和环境危害 …

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阻燃材料与技术 2000年第5期 12-15页

作者： Agena,d fra,PAG

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N型创意屋

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建筑技艺 2009年第3期15卷 64-69页

作者： fra inc fra inc

该住宅位于日本青森县一块狭长的地块内，共分两层，占地面积34967平方米，建筑面积114.58平方米，总楼层面积194平方米，混凝土加木梁柱结构。在预算很低的情况下，设计师针对地块的特点，通过引入中间区域，将主要空间分开，在交叉口... 详细信息

该住宅位于日本青森县一块狭长的地块内，共分两层，占地面积34967平方米，建筑面积114.58平方米，总楼层面积194平方米，混凝土加木梁柱结构。在预算很低的情况下，设计师针对地块的特点，通过引入中间区域，将主要空间分开，在交叉口将空间切开，使整个空间变得透明与开放，被分开的空间变得具体有形。

关键词：创意 N型占地面积建筑面积梁柱结构青森县

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法国Unimetal的新直流电弧炉

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冶钢译丛 1997年第2期 1-5页

作者： fra.,J－P 钟顺思

法国Ｇａｎｄｒａｎｇｅ的Ｕｎｉｍｅｔａｌ钢厂前不久安装了一台直流双壳电弧炉，其废钢料场物装料都适合于Ｕｎｉｍｅｔａｌ传统的订货手册，并在烟尘的排放和过滤方面作了巨大的努力。

关键词：炼钢直流电弧炉双壳炉

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Novel opioid-neurotensin-based hybrid peptide with spinal long-lasting antinociceptive activity and a propensity to delay tolerance development

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Acta Pharmaceutica Sinica B 2020年第8期10卷 1440-1452页

作者： Karolina fra˛czek Mattia Ferraiolo Emmanuel Hermans Magdalena Bujalska-Zadrozny Kaja Kasarello Anna Erdei Kamila Kulik Agnieszka Kowalczyk Piotr Wojciechowski dorota Sulejczak Piotr Sosnowski Sebastian Granica Sandor Benyhe Katarzyna Kaczynska Lukasz Nagraba Artur Stolarczyk Agnieszka Cudnoch-Jedrzejewska Patrycja Kleczkowska department of Pharmacodynamics Centre for Preclinical Research(CBP)Medical University of WarsawWarsaw 02-097Poland Laboratory of Neuropharmacology Institute of NeurosciencesUniversite´Catholique de LouvainBrussels B-1200Belgium department of Experimental and Clinical Physiology Centre for Preclinical Research(CBP)Medical University of WarsawWarsaw 02-097Poland Institute of Biochemistry Biological Research CentreHungarian Academy of SciencesSzeged H-6701Hungary doctoral School of Therotecical Medicine University of SzegedSzeged H-6720Hungary department of Respiration Physiology Mossakowski Medical Research CentrePolish Academy of SciencesWarsaw 02-106Poland department of Experimental Pharmacology Mossakowski Medical Research CenterPolish Academy of SciencesWarsaw 02-106Poland department of Neuropeptides Mossakowski Medical Research CentrePolish Academy of SciencesWarsaw 02-106Poland department of Pharmacognosy and Molecular Basis of Phytotherapy Faculty of PharmacyMedical University of WarsawWarsaw 02-097Poland department of Orthopaedics and Rehabilitation Medical University of WarsawWarsaw 04-749Poland

The behavioral responses exerted by spinal administration of the opioid-neurotensin hybrid peptide, PK23, were studied in adult male rats. The antinociceptive effect upon exposure to a thermal stimulus, as well as tolerance development, was assessed in an acute pain model. The PK23 chimera at a dose of 10 nmol/rat produced a potent pain-relieving effect, especially after its intrathecal administration. Compared with intrathecal morphine, this novel compound was found to possess a favourable side effect profile characterized by a reduced scratch reflex, delayed development of analgesic tolerance or an absence of motor impairments when given in the same manner, though some animals died following barrel rotation as a result of its i.c.v. administration(in particular at doses higher than 10 nmol/rat). Nonetheless, these results suggest the potential use of hybrid compounds encompassing both opioid and neurotensin structural fragments in pain management. This highlights the enormous potential of synthetic neurotensin analogues as promising future analgesics.

关键词： opioid neurotensin doses

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Only mothers feed mature offspring in European Ceratina bees

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Insect Science 2021年第5期28卷 1468-1481页

作者： Michael Mikat Jitka Waldhauserova Tereza frankova Katerina Cermakova Vojtech Broz Simon Zeman Marcela dokulilova Jakub Straka department of Zoology Faculty of ScienceCharles UniversityPragueCzech Republic Jihlava Grammar School JihlavaCzech Republic department of Ecology Faculty of ScienceCharles UniversityPragueCzech Republic

Parental care directed to adult offspring is uncommon in *** parental care has been documented in Xylocopinae bees(Hymenoptera:Apidae).Moreover,some Ceratina bees(Xylocopinae)are known to feed mature siblings,and feeding of mature siblings is achieved by dwarf eldest daughters when mothers *** daughters are intentionally malnourished by mothers and usually originate from the first brood ***,we examined the pattern of care prov ided to young adults in three small European carpenter bees:Ceratina(Ceratina)cucurbitina,C.(Euceratina)chalybea,and C.(E.)*** of nest departures and arrivals were performed to study foraging *** detected intensive foraging behavior of mothers in all three studied ***,we did not observe regular foraging bchavior of daughters in any *** experimental removal of mothers in *** led to the emigration of young adults and did not initiate foraging activity in *** conclude that the feeding of siblings does not occur in these species unlike in the American species *** detected female-biased sex ratios in the first brood cell in *** and *** offspring in the first brood cell was smaller than other female offspring only in *** results show that a female-biased sex ratio and the small size of daughters in the first brood cell do not provide sufficient ev idence for demonstrating the existence of an altruistic daughter and also that the pattern of maternal investment is not exclusively shaped by social interactions.

关键词： foraging trip Hymenoptera maternal care provisioning sociality Xylocopinae

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科尔泰斯的审世情怀

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戏剧（中央戏剧学院学报） 2020年第4期 59-68页

作者： [法]玛丽-克洛德·于贝尔吴亚菲(译) 埃克斯-马赛大学贵州师范大学瑞士研究中心

科尔泰斯不断地讲述疯狂产生的灾难,将谋杀置于作品的中心,捕捉死亡本能的各个方面,呈现乱伦、强奸、放火等各种形式的侵犯,以强调其摧毁力。其天才之处就在于恢复了在上世纪50年代新戏剧之后就被认为消失了的伟大悲剧。科尔泰斯带着审... 详细信息

科尔泰斯不断地讲述疯狂产生的灾难,将谋杀置于作品的中心,捕捉死亡本能的各个方面,呈现乱伦、强奸、放火等各种形式的侵犯,以强调其摧毁力。其天才之处就在于恢复了在上世纪50年代新戏剧之后就被认为消失了的伟大悲剧。科尔泰斯带着审世情怀看其周围的世界,一个欲望的法则取代了康德绝对命令1的混乱世界,每个人只想着支配别人,伤害至死;正是通过这样的审视科尔泰斯重新给与戏剧生气。

关键词：科尔泰斯法国20世纪戏剧疯狂死亡本能悲剧性

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Methodology to locate and quantify radial winding deformation in power transformers

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High Voltage 2017年第1期2卷 17-24页

作者： Steven d.Mitche James S.Wesh School of Electrical and Computer Engineering University of NewcastleCallaghanN.S.W 2308Australia

Frequency response analysis(fra)is a tool that can be used to detect changes within the structural geometry of a *** application of fra is to detect winding displacement after the transformer experiences an overcurrent *** paper proposes a methodology which will facilitate both locating and quantifying winding *** procedure is based on the fitting of a Gray Box transformer model to fra measurements which were recorded both before and after the *** variation in key parameters of the model can then be used to quantify winding deformation *** research will demonstrate the applicability of this approach to a wide range of transformer applications by using fra from a modified 1.3 MVA distribution transformer,and assessing the change in key parameters relative to the emulated buckling introduced to the *** authors propose that this approach is ideally suited for use within an automated diagnostic system which will locate,diagnose and quantify winding deformation within power transformers.

关键词： winding deformation power

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Spinal cord injury reprograms muscle fibroadipogenic progenitors to form heterotopic bones within muscles

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Bone Research 2022年第2期10卷 310-325页

作者： Hsu-Wen Tseng dorothée Girard Kylie A.Alexander Susan M.Millard Frédéric Torossian Adrienne Anginot Whitney Fleming Jules Gueguen Marie-Emmanuelle Goriot denis Clay Beulah Jose Bianca Nowlan Allison R.Pettit Marjorie Salga françois Genêt Marie-Caroline Le Bousse-Kerdilès Sébastien Banzet Jean-Pierre Lévesque Mater Research Institute-The University of Queensland WoolloongabbaQLDAustralia Institut de Recherche Biomédicale des Armées(IRBA) INSERM UMRS-MD1197 ClamartFrance INSERM UMRS-Md 1197 Universitéde Paris-SaclayHôpital Paul BrousseVillejuifFrance INSERM UMS-44 Universitéde Paris-SaclayHôpital Paul BrousseVillejuifFrance UPOH(UnitéPéri Opératoire du Handicap Perioperative Disability Unit)Physical and Rehabilitation Medicine departmentRaymond-PoincaréHospitalAssistance Publique-Hôpitaux de Paris(AP-HP)GarchesFrance Universitéde Versailles Saint Quentin en Yvelines UFR Simone Veil-SantéEND:ICAP INSERM U1179Montigny le BretonneuxFrance

The cells of origin of neurogenic heterotopic ossifications(NHOs), which develop frequently in the periarticular muscles following spinal cord injuries(SCIs) and traumatic brain injuries, remain unclear because skeletal muscle harbors two progenitor cell populations: satellite cells(SCs), which are myogenic, and fibroadipogenic progenitors(FAPs), which are mesenchymal. Lineage-tracing experiments using the Cre recombinase/Lox P system were performed in two mouse strains with the fluorescent protein Zs Green specifically expressed in either SCs or FAPs in skeletal muscles under the control of the Pax7 or Prrx1 gene promoter, respectively. These experiments demonstrate that following muscle injury, SCI causes the upregulation of PdGFRα expression on FAPs but not SCs and the failure of SCs to regenerate myofibers in the injured muscle, with reduced apoptosis and continued proliferation of muscle resident FAPs enabling their osteogenic differentiation into NHOs. No cells expressing Zs Green under the Prrx1 promoter were detected in the blood after injury, suggesting that the cells of origin of NHOs are locally derived from the injured muscle. We validated these findings using human NHO biopsies. PdGFRα+mesenchymal cells isolated from the muscle surrounding NHO biopsies could develop ectopic human bones when transplanted into immunocompromised mice, whereas Cd56+myogenic cells had a much lower potential. Therefore, NHO is a pathology of the injured muscle in which SCI reprograms FAPs to undergo uncontrolled proliferation and differentiation into osteoblasts.

关键词： progenitor injuries muscles

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