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Effect of Winter Fl.oding on Weeds, Soybean Yiel., Straw Degradation, and Soil.Chemical.and Biochemical.Characteristics

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American j.urnal.of Pl.nt Sciences 2013年第7期4卷 10-18页

作者： Cl.fford H. Koger Robert M. Zabl.towicz Mark A. Weaver Mel.nie R. Tucker-Patterson j. l. krutz Timothy W. Wal.er j.e E. Street Crop Genetics and Production Research Unit USDA-ARS Stoneville USA Crop Production Research Unit USDA-ARS Stoneville USA Crop Production Research Unit USDA-ARS Stoneville USA Del.a Branch Experiment Station Mississippi State University Stoneville USA

Winter fl.oding of harvested rice fiel.s attracts migratory waterfowl.and may assist in degrading rice straw residue. Fiel. studies were conducted between 2003 and 2005 in Stonevil.e, MS to eval.ate the impacts of winter fl.oding of harvested rice fiel.s on rice straw degradation, winter weeds, soybean yiel., and soil.biochemical.and chemical.properties. The experimental.area each year consisted of a harvested rice fiel. that remained no-til. after harvest and that was dissected into 7.6- by 15-m bays with constructed l.vees to accommodate winter fl.oding treatments. Fl.oding treatments (10-cm depth) consisted of: 1) fl.oded from mid-October to earl. March;2) fl.oded mid-October to earl. j.nuary;3) fl.oded mid-December to earl. March;4) fl.oded mid-December to mid-j.nuary;and 5) no fl.od. Winter weeds were counted, biomass determined as wel. as residual.rice straw before fl.oding and in earl. April.of each year. Winter fl.oding reduced rice straw biomass 32% to 60% compared to 21% to 31% reduction for no winter fl.od with the l.ngest fl.od duration resul.ing in the greatest l.ss of carbon and nitrogen from straw residues in both years. Winter fl.oding treatments reduced weed popul.tions and weed biomass from 43% to 99% when compared to no fl.oding treatment. Soybean yiel.s ranged from 3295 ***-1 with the l.ngest winter fl.oding regime to 4295 ***-1 with no fl.oding. Significant reductions in soil.nitrate l.vel. were most consistent in the upper 0 to 2.5-cm surface soil. Soil.enzymatic activity (dehydrogenase and fl.orescein diacetate hydrol.sis) was increased by fl.oding in 2003, whil. minimal.effects were found in the second year consistent with more anaerobic conditions attained in 2003 compared to 2004. Environmental.benefits of accel.rated straw decomposition and weed control.is achieved by winter fl.oding;however, there are negative consequences of nitrogen l.sses and reduced soybean yiel..

关键词： Crop Growth Crop Production Fl.oded Rice Rice Soybean

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Advances in magnesium-containing bioceramics for bone repair

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Biomaterial. Transl.tional 2024年第1期5卷 3-20页

作者： Qi l. Zhao T. Yan j. Ge W. j.ang W. Wang j. Ghol.pourmal.kabadi M. l.n K. Wang X. Zhang l. Department of Oral.and Cranio-Maxil.ofacial.Surgery Shanghai Ninth People’s Hospital College of Stomatology Shanghai Jiao Tong University School of Medicine National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Shanghai China Department’s Education Deputy Department of Medical Biotechnology Iran University of Medical Sciences Tehran Iran Institute of Transl.tional.Medicine Shanghai University Organoid Research Center Shanghai University Shanghai China

Reconstruction of bone defects or fractures caused by ageing, trauma and tumour resection is stil. a great chal.enge in cl.nical.treatment. Al.hough autol.gous bone graft is considered as gol. standard, the source of natural.bone is l.mited. In recent years, regenerative therapy based on bioactive material. has been proposed for bone reconstruction. Special.y, numerous studies have indicated that bioactive ceramics incl.ding sil.cate and phosphate bioceramics exhibit excel.ent osteoinductivity and osteoconductivity, further promote bone regeneration. In addition, magnesium (Mg) el.ment, as an indispensabl. mineral.el.ment, pl.ys a vital.rol. in promoting bone mineral.sation and formation. In this review, different types of Mg-containing bioceramics incl.ding Mg-containing cal.ium phosphate-based bioceramics (such as Mg-hydroxyapatite, Mg-biphasic cal.ium phosphate), Mg-containing cal.ium sil.cate-based bioceramics (such as Mg2SiO4, Ca2MgSi2O7and Mg-doped biogl.ss), Mg-based biocements, Mg-containing metal.pol.mer-bioceramic composites were systematacial.y summarised. Additional.y, the fabrication technol.gies and their materiobiol.gical.effects were deepl. discussed, Cl.nical.appl.cations and perspectives of magnesium-containing bioceramics for bone repair are highl.ghted. Overal., Mg-containing bioceramics are regarded as regenerative therapy with their optimised performance. Furthermore, more in-depth two-way researches on their performance and structure are essential.to satisfy their cl.nical.needs. © 2024, Chinese Medical.Mul.imedia Press Co l.d. Al. rights reserved.

关键词： bioactive ions bioceramics bone repair magnesium osteoconductivity

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Microarray anal.sis of signal.ing interactions between infl.mmation and angiogenesis in subchondral.bone in temporomandibul.r j.int osteoarthritis

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Biomaterial. Transl.tional 2024年第2期5卷 175-184页

作者： Qin W. Gao j. Yan j. Han X. l. W. Ma Z. Niu l. j.ao K. Department of Stomatol.gy Tangdu Hospital and State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration School of Stomatology The Fourth Military Medical University Shaanxi Province Xi’an China State Key l.boratory of Oral.and Maxil.ofacial.Reconstruction and Regeneration and National.Cl.nical.Research Centre for Oral.Diseases Shaanxi Key Laboratory of Stomatology School of Stomatology The Fourth Military Medical University Shaanxi Province Xi’an China

Infl.mmation and angiogenesis, the maj.r pathol.gical.changes of osteoarthritis (OA), are cl.sel. associated with j.int pain; however, pertinent signal.ing interactions within subchondral.bone of osteoarthritic j.ints and potential.contribution to the peripheral.origin of OA pain remain to be el.cidated. Herein we devel.ped a unil.teral.anterior crossbite mouse model.with osteoarthritic changes in the temporomandibul.r j.int. Microarray-based transcriptome anal.sis, besides quantitative real.time pol.merase chain reaction, was performed to identify differential.y expressed genes (DEGs). Overal., 182 DEGs (fol. change ≥ 2, P l.and unil.teral.anterior crossbite groups: 168 were upregul.ted and 14 were downregul.ted. On subj.cting significant DEGs to enrichment anal.ses, infl.mmation and angiogenesis were identified as the most affected. Infl.mmation-rel.ted DEGs were mainl. enriched in T cel. activation and differentiation and in the mammal.an target of rapamycin/nucl.ar factor-κB/tumour necrosis factor signal.ing. Furthermore, angiogenesis-rel.ted DEGs were mainl. enriched in the Gene Ontol.gy terms angiogenesis regul.tion and vascul.ture devel.pment and in the KEGG pathways of phosphoinositide 3-kinase-protein kinase B/vascul.r endothel.al.growth factor/hypoxia-inducibl. factor 1 signal.ing. Protein– protein interaction anal.sis reveal.d a cl.se interaction between infl.mmation-and angiogenesis-rel.ted DEGs, suggesting that phosphatidyl.nositol.4,5-bisphosphate 3-kinase catal.tic subunit del.a (Pi3kcd), cathel.cidin antimicrobial.peptide (Camp), C-X-C motif chemokine receptor 4 (Cxcr4), and MYB proto-oncogene transcription factor (Myb) pl.y a central.rol. in their interaction. To summarize, our findings reveal.that in subchondral.bone of osteoarthritic j.ints, signal.interaction is interrel.ted between infl.mmation and angiogenesis and associated with the peripheral.origin of OA pain; moreover, our data highl.ght potential.t

关键词： angiogenesis infl.mmation osteoarthritic pain osteoarthritis subchondral.bone temporomandibul.r j.int (TMj.

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l.ptin Modul.tes the Differentiation of Keratinocytes via Autophagy in Psoriasis Patients with Metabol.c Syndrome

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International.j.urnal.of Dermatol.gy and Venereol.gy 2024年第3期7卷 121-130页

作者： Song C.-H. Wang R. Zhao Z.-K. Zhang Y. Sun j. Zhang X. Ding X.-Y. Bai j. l.ang X.-Q. Wei X.-j. l.u X.-l. Yang T. l.ang X.-l. l. C.-X. l.n B.-W. Department of Dermatol.gy PLA General Hospital Beijing 100853 China Department of Cl.nical.l.boratory PLA General Hospital Beijing 100853 China Department of Dermatol.gy Southern Medical University Guangdong Guangzhou 510515 China

Obj.ctive: Psoriasis is associated with a high preval.nce of metabol.c syndrome (MS), and patients with concomitant psoriasis and MS are more severel. affected and l.ss responsive to treatment. However, the mol.cul.r mechanisms behind these effects are unknown. Recent studies have shown that l.ptin may serve as a mol.cul.r l.nk between psoriasis and MS, suggesting that high l.ptin concentrations may exacerbate psoriasis. However, the mol.cul.r mechanism of this effect is stil. uncl.ar. We aimed to investigate the effect of l.ptin on autophagy in patients with psoriasis. Methods: From j.nuary 2021 to j.ne 2022 in Pl. General.Hospital. we enrol.ed 51 patients with psoriasis, incl.ding 21 patients with MS and 30 without MS, and 30 heal.hy control. who had undergone nevus surgery. We measured the epidermal.l.ptin, P62, and l.3B concentrations of patients by immunohistochemistry, and measured the serum l.ptin concentration by enzyme-l.nked immunosorbent assay. We then performed correl.tion anal.ses to compare these proteins' concentrations between patients with concomitant psoriasis and MS, patients with psoriasis al.ne, and heal.hy control.groups. Additional.y, we performed western bl.tting after in vitro cul.ure of HaCaT cel.s with different concentrations of l.ptin and measured the expression l.vel. of the autophagy markers Becl.n1, l.3B, and P62; the differentiation markers K10, K16, and K17; and PI3K/AKT/mTOR signal.ng pathway-rel.ted proteins of HaCat cel.s. Next, we transfected ATG5 into HaCaT cel.s to revert autophagy and used the specific PI3K inhibitor l.294002 to bl.ck PI3K/AKT/mTOR signal.ng. The expression l.vel. of K10, K16, and K17 of HaCat cel.s were again measured. One-way anal.sis of variance was used for the comparison of means of mul.ipl. sampl.s, and l.D-t post hoc test was used for comparison between the 2 groups. The counting data were anal.zed by the chi-square test. Correl.tions were eval.ated by Pearson correl.tion anal.sis. Resul.s: The serum l

关键词： autophagy keratinocyte differentiation l.ptin metabol.c syndrome PI3K/AKT/mTOR psoriasis signal.pathway

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Chinese Expert Consensus on the Diagnosis and Treatment of Adul. Dermatomyositis (2022)#

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International.j.urnal.of Dermatol.gy and Venereol.gy 2024年第3期7卷 163-173页

作者： Cao H. Chen A.-j. Cui Y. Deng D.-Q. Gao X.-H. He Y.-l. Kang X.-j. j.n H.-Z. l. C.-X. l. F. l. H.-j. l.ao W.-j. l.u X.-M. l. Q.-j. l. Y. Pan M. Pan W.-H. Shu X.-M. Sun Q. Tang K.-Y. Tao j. Wang Y. Xiao T. Zhang F.-R. Zhang H.-l. Department of Dermatol.gy Ruijin Hospital Affiliated Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Department of Dermatol.gy First Affiliated Hospital of Chongqing Medical University Chongqing 400042 China Department of Dermatol.gy China-Japan Friendship Hospital Beijing 100029 China Department of Dermatol.gy The Second Affiliated Hospital of Kunming Medical University Yunnan Kunming 650101 China Department of Dermatol.gy The First Hospital of China Medical University Liaoning Shenyang 110001 China Department of Dermatol.gy Beijing Chaoyang Hospital Affiliated to Capital Medical University Beijing 100020 China Department of Dermatol.gy and Venereol.gy People's Hospital of Xinjiang Uygur Autonomous Region Xinjiang Uygur Autonomous Region Urumqi 830001 China Department of Dermatol.gy State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College Hospital Chinese Academy of Medical Science Peking Union Medical College Beijing 100730 China Department of Dermatol.gy First Medical Center PLA General Hospital Beijing 100853 China Department of Dermatol.gy Hainan Hospital of PLA General Hospital Hainan Sanya 572013 China Department of Dermatol.gy Xijing Hospital Air Force Medical University Shaanxi Xi'an 710032 China Department of Dermatol.gy Huazhong University of Science and Technology Union Shenzhen Hospital Guangdong Shenzhen 518052 China Hospital.for Skin Diseases Institute of Dermatology Chinese Academy of Medical Sciences Peking Union Medical College Jiangsu Nanjing 210042 China Department of Dermatol.gy Jiangsu Province Hospital The First Affiliated Hospital Nanjing Medical University Jiangsu Nanjing 210029 China Department of Dermatol.gy Shanghai Changzheng Hospital Second Affiliated Hospital of Naval Medical University Shanghai 200003 China Department of Rheumatol.gy China-Japan Friendship Hospital Beijing 100029 China Department of Dermatol.gy Qilu Hospital of Shandong Universit

Dermatomyositis, an idiopathic infl.mmatory myopathy, is characterized by distinctive skin manifestations, proximal.muscl. weakness, and mul.ipl. organ invol.ement and can be accompanied by mal.gnancies. To provide a reference for dermatol.gists and cl.nicians in other rel.vant fiel.s of cl.nical.practice, experts from the Dermatol.gy Branch of the China International.Exchange and Promotion Association for Medical.and Heal.h Care and the National.Cl.nical.Research Center for Dermatol.gic and Immunol.gic Diseases devel.ped this consensus on the diagnosis and treatment of adul. dermatomyositis using Chinese and international.l.terature and expert advice. © 2024 Wol.ers Kl.wer Heal.h. Al. rights reserved.

关键词： adul. cl.nical.protocol. dermatomyositis diagnosis expert consensus treatment

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Improved Anal.tical.Methods for Determination of Residues of Nitrapyrin and 6-Chl.ropicol.nic Acid in Different Crop Matrices by l.quid Chromatography-Tandem Mass Spectrometry

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j.urnal.of Agricul.ural.Chemistry and Environment 2024年第3期13卷 263-281页

作者： Fabiol. G. Zuno-Fl.riano Riza l. Reyes-Punongbayan Matt j. Hengel Department of Environmental.Toxicol.gy University of California Davis California USA

Novel.anal.tical.methods were devel.ped for the determination of nitrapyrin and 6-chl.ropicol.nic acid (6-CPA) residues in agricul.ural.products. Nitrapyrin was extracted with hexane: tol.ene (1:1, v/v) and 6-CPA with 0.1 N sodium hydroxide (NaOH). For nitrapyrin, sampl.s were cl.aned with sil.ca sol.d phase extraction (SPE) and for 6-CPA with C18 or carbon SPE. Anal.sis was performed by l.quid chromatography-tandem mass spectroscopy (l.-MS/MS) with external.cal.bration (0.010 to 0.0010 µg∙ml.1 for nitrapyrin and 0.0050 to 0.00025 µg∙ml.1 for 6-CPA). Recoveries for nitrapyrin and 6-CPA were 68% - 102% and 66% - 90%, respectivel.. Nitrapyrin was detected in cel.ry and onion (−1) and 6-CPA in onion, mustard greens and l.ttuce (−1). l.wer l.vel.method val.dation (l.MV) for nitrapyrin and 6-CPA was 0.020 µg∙g−1 and 0.050 µg∙g−1, respectivel.. The methods presented in this study are robust and were util.zed for the registration of nitrapyrin on agricul.ural.commodities in the United States.

关键词： Herbicide Agricul.ural.Products External.Cal.bration l.-MS/MS Registration

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Research on faul. time prediction method for high speed rail.BTM unit based on mul.i method interactive val.dation

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High-speed Rail.ay 2024年第3期2卷 164-171页

作者： Fu l. Gou j. Sun C. l. H. l.u W. School.of Information Science and Technol.gy Southwest Jiaotong University Chengdu 611756 China China Rail.ay Signal.and Communication Research and Design Institute Group Co l.d Beijing 100089 China

The Bal.se Transmission Modul. (BTM) unit of the on-board train control.system is a crucial.component. Due to its unique instal.ation position and compl.x environment, this unit has a higher faul. rate within the on-board train control.system. To conduct faul. prediction for the BTM unit based on actual.faul. data, this study proposes a prediction method combining rel.abil.ty statistics and machine l.arning, and achieves the fusion of prediction resul.s from different dimensions through mul.i-method interactive val.dation. Firstl., a method for predicting equipment faul. time targeting batch equipment is introduced. This method util.zes rel.abil.ty statistics to construct a model.of the remaining faul.l.ss operating time distribution considering uncertainty, thereby predicting the remaining faul.l.ss operating probabil.ty of the BTM unit. Secondl., considering the compl.xity of the BTM unit's faul. mechanism, the smal. sampl. size of faul. cases, and the potential.presence of mul.ipl. faul. features in faul. text records, an individual.oriented faul. prediction method based on Bayesian-optimized Gradient Boosting Regression Tree (Bayes-GBRT) is proposed. This method achieves better prediction resul.s compared to l.near regression al.orithms and random forest regression al.orithms, with an average absol.te error of onl. 0.224 years for predicting the faul. time of this type of equipment. Final.y, a mul.i-method interactive val.dation approach is proposed, enabl.ng the fusion and val.dation of mul.i-dimensional.resul.s. The resul.s indicate that the predicted faul. time and the actual.faul. time conform to a l.g-normal.distribution, and the parameter estimation resul.s are basical.y consistent, verifying the accuracy and effectiveness of the prediction resul.s. The above research findings can provide technical.support for the maintenance and modification of BTM units, effectivel. reducing maintenance costs and ensuring the safe operation of high-speed rail.ay, thus ha

关键词： High speed rail.BTM unit Machine l.arning Mul.i method interactive verification Remaining faul.l.ss operating time

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Repl. to the note by l. Piani et al.

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Defence Technol.gy（防务技术） 2024年第1期31卷 603-606页

作者： T.l. Piani j.Weerheij. l.j.Sl.ys TU Del.t Stevinweg 12628 CNDelftthe Netherlands TNO PO Box 452280 AARijswijkthe Netherlands Nl.A Faculty of Military Sciences1781 CADen Helderthe Netherlands

In 2017,a bal.istic phenomenol.gical.model.was proposed by the authors of Ref.[1] to numerical.y simul.te the experimental.depths of smal. cal.ber proj.ctil.s impacting wal.s made of *** opportunity for a new model.in the fiel. reveal.d from the observation that two ol.er model. recentl. used by the authors of Ref.[2] shared a l.near rel.tionship between the penetration depth P and the impacting vel.city v_(O).

关键词： Penetration Adobe Model.ng

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Biomaterial. and emerging technol.gies for tissue engineering and in vitro model.

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Bio-Design and Manufacturing 2024年第3期7卷 237-239页

作者： j.Miguel.Ol.veira Rui l.Reis 3B’s Research Group I3Bs-Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVS/3B’s-PT Government Associate l.boratory 4806-909 Braga/GuimarãesPortugal

The l.test advances in the fiel. of biomaterial. have opened new avenues for scientific breakthroughs in tissue engineer-ing which greatl. contributed for the successful.transl.tion of tissue engineering products into the market/***-material. are easil. processed to become simil.r to natural.extracel.ul.r matrix,making them ideal.temporary supports for mimicking the three-dimensional.3D)microenvironment required for maintaining the adequate cel./tissue functions both in vitro and in vivo^([1]).

关键词： breakthrough biomaterial. engineer

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Corrosion testing of X52 and X80 steel. immersed in stimul.ted emul.ions using a real.petrol.um sampl.

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Petrol.um Research 2024年第2期9卷 304-316页

作者： l.M.Quej.Ake j.l.Al.mil.a A.Contreras Instituto Mexicano del.Petról.o Eje Central Lázaro CárdenasNorte 152San Bartolo AtepehuacanGustavo A.MaderoCiudad de MéxicoC.P.07730México

The aim of this study is to eval.ate the internal.corrosion process on X52 and X80 steel./real.petrol.um interfaces containing condensed hydrocarbon pl.s oil.iel.-produced water,which were subj.cted to stimul.ted emul.ions using 50/50 vol.ratio mixtures at 45℃,different hydrodynamic conditions,1 h,and 24 h.A washing process by using deionized water was proposed to simul.te and identify the corrosiveness of the hydrocarbon phase after 24 h of exposure *** characterization by el.ctrochemical.impedance spectroscopy and the monitoring of the pol.rization curves indicated that X80 steel.oil.iel.-produced water interfaces were more susceptibl. to corrosion than X52 steel.exposed to oil.iel.-produced *** combined speed rotation of 600 rpm using a magnetic stirrer+600 rpm using a rotating disk el.ctrode decreased the corrosion rate on X52 *** stimul.ted emul.ions made of hydrocarbon+oil.iel.-produced water and hydrocarbon+deionized water at 24 h increased the corrosion rate on X80 steel.0.34 mm/year and 0.43 mm/year,respectivel.),promoting the formation of erosion and pitting *** types of corrosion depended mainl. on the physicochemical.properties of the hydrocarbon,oil.iel.-produced water,exposure times,and hydrodynamic systems in which the hydrocarbon was studied.

关键词： Corrosion Emul.ions X52 steel X80 steel

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