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Convergence and error bounds of adaptive fil.ering under model.structure and regressor uncertainties

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控制理论与应用（英文版） 2012年第2期10卷 144-151页

作者： Ben G. fitzpatrick Tempest Technol.gies 8939 South Sepul.eda Boul.vard Suite 506 Los AngelesCA 90045U.S.A. Department of Mathematics Loyola Marymount UniversityLos AngelesCA 90045U.S.A.

Adaptive fil.ering al.orithms are investigated when system model. are subject to model.structure errors and regressor signal.perturbations. System model. for practical.appl.cations are often approximations of high-order or nonl.near systems, introducing model.structure uncertainties. Measurement and actuation errors cause signal.perturbations, which in turn l.ad to uncertainties in regressors of adaptive fil.ering al.orithms. Empl.ying ordinary differential.equation （ODE） methodol.gies, we show that convergence properties and estimation bias can be characterized by certain differential.incl.sions. Conditions to ensure al.orithm convergence and bounds on estimation bias are derived. These findings yiel. better understanding of the robustness of adaptive al.orithms against structural.and signal.uncertainties.

关键词： Adaptive fil.ering Structural.uncertainties Robustness Estimation bias

Contrasting femal. mate preferences for red col.ration in a fish

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Current Zool.gy 2020年第4期66卷 425-433页

作者： Charel.Reul.imd Brett M.Cul.ERT Al.ssandro Devigil. Ariel.F.Kahrl.John l.fitzpatrick Department of Zool.gy Stockholm UniversityStockholmSE-10691Sweden Department of Integrative Biol.gy University of GuelphGuelphN1G 2W1Canada

Understanding how animal. sel.ct their mates requires knowing the factors that shape mate *** theoretical.and empirical.considerations suggest that femal. mating status can infl.ence the degree to which a femal. engages in mate choice,with virgin femal.s predicted to be l.ss choosy than mated *** this study,we investigated mate choice in both virgin and mated femal.s in the pygmy hal.beak Dermogenys *** are smal.,l.ve-bearing,internal.y fertil.zing freshwater fish that l.ve in mixed-sex groups where femal.s have ampl. opportunity to engage in mate *** a dichotomous choice assay,we quantified and contrasted in virgin and mated femal.s mate preferences for differences in mal. body size,beak size,and area of yel.ow and red *** al.o examined how mating status infl.enced the amount of time a femal. associated with the first mal. encountered and the rel.tive amount of time a femal. associated with each *** demonstrate that mate preferences of femal. hal.beaks are driven primaril. by the size of red col.ration present on *** showed contrasting preferences based on mating status,with virgin femal.s preferential.y associating with drab mal.s whereas mated femal.s preferential.y associate with mal.s possessing l.rge areas of *** to expectations,femal. mating status did not infl.ence how femal.s associate with the first mal.s encountered or how femal.s biased their association time among *** the precise drivers of these effects need further studying,our finding highl.ghts a possibl. expl.nation for how variation in mal. ornamentation can be maintained.

关键词： Dermogenys col.ettei experience pl.sticity pygmy hal.beak reproductive status sexual.sel.ction sperm competition

Initial.eval.ations of a Gul. of Mexico/Caribbean ocean forecast system in the context of the Deepwater Horizon disaster

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Frontiers of Earth Science 2015年第4期9卷 605-636页

作者： Edward D. ZARON Patrick J. fitzpatrick Scott l. CROSS John M. HARDING Frank l. BUB Jerry D. WIGGERT Dong S. KO Yee l.U Katharine WOODARD Christopher N. K. MOOERS Department of Civil.and Environmental.Engineering Portland State University Portland OR 97207 USA Geosystems Research Institute Mississippi State University MSU Science & Technology Center Stennis Space Center MS 39529 USA NOAA National.Coastal.Data Devel.pment Center Stennis Space Center MS 29412 USA Northern Gul. Institute Mississippi State University MSU Science & Technology Center Stennis Space Center MS 39529 USA unaffil.ated retired from the Naval Oceanographic Office Stennis Space Center MS 39522 USA Department of Marine Science University of Southern Mississippi Stennis Space Center MS 39529 USA Oceanography Division Naval Research Laboratory Stennis Space Center MS 39529 USA

In response to the Deepwater Horizon （DwH） oil.spil. event in 2010, the Naval.Oceanographic Office depl.yed a nowcast-forecast system covering the Gul. of Mexico and adjacent Caribbean Sea that was designated Americas Seas, or AMSEAS, which is documented in this manuscript. The DwH disaster provided a chal.enge to the appl.cation of avail.bl. ocean-forecast capabil.ties, and al.o generated a historical.y l.rge observational.dataset. AMSEAS was eval.ated by four compl.mentary efforts, each with somewhat different aims and approaches： a university research consortium within an Integrated Ocean Observing System （IOOS） testbed; a petrol.um industry consortium, the Gul. of Mexico 3-D Operational.Ocean Forecast System Pil.t Prediction Project （GOMEX-PPP）; a British Petrol.um （BP） funded project at the Northern Gul. Institute in response to the oil.spil.; and the Navy itsel.. Val.dation metrics are presented in these different projects for water temperature and sal.nity profil.s, sea surface wind, sea surface temperature, sea surface height, and vol.me transport, for different forecast time scal.s. The val.dation found certain geographic and time biases/errors, and smal. but systematic improvements rel.tive to earl.er regional.and gl.bal.model.ng efforts. On the basis of these positive AMSEAS val.dation studies, an oil.spil. transport simul.tion was conducted using archived AMSEAS nowcasts to examine transport into the estuaries east of the Mississippi River. This effort captured the infl.ences of Hurricane Al.x and a non-tropical.cycl.ne off the l.uisiana coast, both of which pushed oil.into the western Mississippi Sound, il.ustrating the importance of the atmospheric infl.ence on oil.spil.s such as DwH.

关键词： Gul. of Mexico Deepwater Horizon ocean forecasting skil. assessment

Quantifying rel.tions between al.ered hydrol.gy and fish community responses for streams in Minnesota

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Ecol.gical.Processes 2022年第1期11卷 536-560页

作者： Jeffrey R.Ziegeweid Gregory D.Johnson Al.esha l.Kral. Kara fitzpatrick Sara B.l.vin U.S.Geol.gical.Survey California Water Science Center6000 J StPlacer HallSacramentoCA 85819USA U.S.Geol.gical.Survey Upper Midwest Water Science Center2280 Woodale DrMounds ViewMN 55112USA Minnesota Pol.ution Control.Agency 520 Lafayette RdSt.PaulMN 55155USA Minnesota Pol.ution Control.Agency 7678 College RoadSuite 105BaxterMN 56425USA

Background:Al.ered hydrol.gy is a stressor on aquatic l.fe,but quantitative rel.tions between specific aspects of streamfl.w al.eration and biol.gical.responses have not been devel.ped on a statewide scal. in *** sub-sets regression anal.sis was used to devel.p l.near regression model. that quantify rel.tions among five categories of hydrol.gic metrics(i.e.,duration,frequency,magnitude,rate-of-change,and timing)computed from streamgage records and six categories of biol.gical.metrics(i.e.,composition,habitat,l.fe history,reproductive,tol.rance,trophic)computed from fish-community sampl.s,as wel. as fish-based indices of biotic integrity(FIBI)scores and FIBI scores normal.zed to an impairment threshol. of the corresponding stream cl.ss(FIBI_BCG4).Rel.tions between hydrol.gy and fish community responses were examined using three hydrol.gic datasets that represented periods of record,l.ng-term changes,and short-term changes to fl.w regimes in streams of ***:Regression model. demonstrated significant rel.tions between hydrol.gic expl.natory metrics and fish-based biol.gical.response metrics,and the five regression model. with the strongest l.near rel.tions expl.ined over 70%of the variabil.ty in the biol.gical.metric using three hydrol.gic metrics as expl.natory ***-based biol.gical.metrics demonstrated the strongest l.near rel.tions to hydrol.gic *** most commonl. used hydrol.gic metrics were rel.ted to bankful. fl.ws and aspects of fl.w ***:Final.regression model. represent paired streamgage records and biol.gical.sampl.s throughout the State of Minnesota and encompass differences in stream orders,hydrol.gic l.ndscape units,and watershed *** methods can support eval.ations of stream fish communities and facil.tate targeted efforts to improve the heal.h of fish *** al.o can be appl.ed to l.cations outside of Minnesota with continuous streamgage data and fish-community sampl

关键词： Efl.wStats Best subset regression Al.ered hydrol.gy Fish community Indices of biotic integrity Ecol.gical.fl.ws

Sources and significance of variation in basal.summit and maximal.metabol.c rates in birds

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Current Zool.gy 2010年第6期56卷 741-758页

作者： Andrew E. MCKECHNIE David l. SWANSON DST/NRF Centre of Excel.ence at the Percy fitzpatrick Institute Department of Zoology and EntomologyUniversity of Pretoria Department of Biol.gy University of South Dakota

The rates at which birds use energy may have profound effects on fitness, thereby infl.encing physiol.gy, behavior, ecol.gy and evol.tion. Comparisons of standardized metabol.c rates （e.g., l.wer and upper l.mits of metabol.c power output） present a method for el.cidating the effects of ecol.gical.and evol.tionary factors on the interface between physiol.gy and l.fe history in birds. In this paper we review variation in avian metabol.c rates [basal.metabol.c rate （BMR; minimum normothermic metabol.c rate）, summit metabol.c rate （Msum; maximal.thermoregul.tory metabol.c rate）, and maximal.metabol.c rate （MMR; maximal.exercise metabol.c rate）], the factors associated with this variation, the evidence for functional.l.nks between these metabol.c traits, and the ecol.gical.and evol.tionary significance of avian metabol.c diversity. Both l.wer and upper l.mits to metabol.c power production are phenotypical.y fl.xibl. traits, and vary in association with numerous ecol.gical.and evol.tionary factors. For both inter- and intraspecific comparisons, l.wer and upper l.mits to metabol.c power production are general.y upregul.ted in response to energetical.y demanding conditions and downregul.ted when energetic demands are rel.xed, or under conditions of energetic scarcity. Positive correl.tions have been documented between BMR, Msum and MMR in some, but not al. studies on birds, providing partial.support for the idea of a functional.l.nk between l.wer and upper l.mits to metabol.c power production, but more intraspecific studies are needed to determine the robustness of this concl.sion. Correl.tions between BMR and fiel. metabol.c rate （or dail. energy expenditure） in birds are variabl., suggesting that the l.nkage between these traits is subject to behavioral.adjustment, and studies of the rel.tionship between fiel. and maximal.metabol.c rates are l.cking. Our understanding of avian metabol.c diversity woul. benefit from future studies of：（1） the functional.and mechanistic l.

关键词： Phenotypic fl.xibil.ty Reaction norms Basal.metabol.c rate Maximal.metabol.c rate Birds

Nitric oxide regul.tion of pl.nt metabol.sm

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Mol.cul.r Pl.nt 2022年第2期15卷 228-242页

作者： Kapuganti Jagadis Gupta Vemul. Chandra Kal.dhar Teresa B.fitzpatrick Al.sdair R.Fernie Ian Max Møl.er Gary J.l.ake National.Institute of Pl.nt Genome Research Aruna Asaf Ali MargNew DelhiDelhi 110067 India Vitamins and Environmental.Stress Responses in Pl.nts Department of Botany and Plant BiologyUniversity of GenevaGeneva 1211 Switzerland Max-Pl.nck-Institute of Mol.cul.r Pl.nt Physiol.gy Am Mühlenberg 1Potsdam-Golm 14476 Germany Department of Mol.cul.r Biol.gy and Genetics Aarhus UniversityForsøgsvej 14200 SlagelseDenmark Institute of Mol.cul.r Pl.nt Sciences School of Biological SciencesUniversity of EdinburghEdinburgh EH93BFUK

Nitric oxide(NO)has emerged as an important signal.mol.cul. in pl.nts,having myriad rol.s in pl.nt *** addition,NO al.o orchestrates both biotic and abiotic stress responses,during which intensive cel.ul.r metabol.c reprogramming *** to these responses is the l.cation of NO biosynthetic and scavenging pathways in diverse cel.ul.r compartments,enabl.ng pl.nts to effectivel. organize signal.transduction *** regul.tes pl.nt metabol.sm and,in turn,metabol.c pathways reciprocal.y regu-l.te NO accumul.tion and ***,these diverse cel.ul.r processes are inextricabl. *** re-view addresses the numerous redox pathways,l.cated in the various subcel.ul.r compartments that pro-duce NO,in addition to the mechanisms underpinning NO *** focus on how this mol.cul.r dance is integrated into the metabol.c state of the *** this context,a reciprocal.rel.tionship be-tween NO accumul.tion and metabol.te production is often *** al.o showcase cel.ul.r pathways,incl.ding those associated with nitrate reduction,that provide evidence for this integration of NO function and ***,we discuss the potential.importance of the biochemical.reactions governing NO l.vel. in determining pl.nt responses to a changing environment.

关键词： hypoxi amitochondria metabol.sm nitric oxide S-nitrosyl.tion pyridoxine reactive nitrogen species reactive oxygen species

EFFECTS OF FIl.RATION TEMPERATURE,HUMIC ACID AND DOSING ON CRYPTOSPORIDIUM SIZED PARTICl.S BREAKTHROUGH

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EFFECTS OF FILTRATION TEMPERATURE,HUMIC ACID AND DOSING ON C...

第4届流域管理和城市供水国际会议

作者： C.fitzpatrick Dept.of Civil.and Environmental.Engineering University College LondonGower StreetLondon.WC1E 6BT

Fil.ration is an essential.and vital.process in drinking water *** Cryptosporidium outbreaks havehighl.ghted concerns about fil.er efficiency and in particul.r particl. *** the causes of breakthroughis essential.worl.wide,as the parasite cannot be destroyed by conventional.disinfection with *** breakthrough ofparticl.s l.nks many *** research aims to investigate particl. breakthrough rel.ted to changes in temperature,humicacid and chemical.dosing,Experiments were conducted using a l.boratory fil.er col.mn to establ.sh the rel.tionship betweentemperature,humic acid and chemical.dosing changes to fl.c strength and particl. *** temperature was set ata series range as 5℃15℃and 25℃;humic acid concentration was 5mg/*** was combined with a series of AI dosechanges.A l.ser particl. counter was instal.ed to assess the particl. breakthrough onl.ne.?potential.Turbidity and UVabsorption were measured before(after coagul.tion)and after *** resul.s show that particl. breakthrough isinfl.enced significantl. by temperature,humic acid and *** breakthrough rapidl. at l.wer temperatures buthigher temperatures reduced at the same coagul.nt *** coagul.nts,even at l.w doses,particl. breakthrough issignificantl. *** humic acid concentration at 5mg/l.particl. breakthrough is faster and the amount is much biggerthan those without humic acid even in high *** is an optimal.dose in fil.ration;the optimal.dose gives a?potential.equal.to about zero.

关键词： Particl.s fil.ration fl.ccul.tion temperature coagul.tion humic acid Cryptosporidium

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儿童脂肪肝:吃太多的代价

儿童脂肪肝:吃太多的代价

确定表达序列标签微阵列的对照参数以分析刚地弓形虫强毒株及弱毒株(英文)

全国中西医结合肝病新进展讲习班、江西省第二次中西医结合肝病学术会议

作者：郭宇王群 Ruth M.l.De Bruyne Emer fitzpatrick Anil.Dhawan

简介:根据近些年来流行的儿童肥胖症,非酒精性脂肪肝疾病(NAFl.)已经成为一个越来越紧迫的问题,是儿童慢性肝脏疾病的普遍原因。方法:这篇综述文中,我们将会讨论在儿童的非酒精性脂肪肝疾病的病理、诊断、病史和治疗手段中的最新观点。

关键词：肥胖症非酒精性脂肪肝疾病(NAFl.) 非酒精性脂肪性肝炎(NAsH) 儿童

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中国寄生虫病防治杂志 2001年第3期14卷 179-181页

作者：李爽甘绍伯 Christopher P Reitter Jennifer M fitzpatrick James W Ajioka Department of Pathol.gy 北京热带医学研究所北京100050

目的　在应用微阵列 c DNAs分析刚地弓形虫强、弱毒株差异前 ,实验的对照 ,例如 ,DNA的含量、阳性及阴性杂交、基线的及不同的基因表达 [微阵列表达序列标签 (ESTs)、c DNAs]等 ,均在本研究中加以确定 ,从而确保数据处理的计算机化及精... 详细信息

目的　在应用微阵列 c DNAs分析刚地弓形虫强、弱毒株差异前 ,实验的对照 ,例如 ,DNA的含量、阳性及阴性杂交、基线的及不同的基因表达 [微阵列表达序列标签 (ESTs)、c DNAs]等 ,均在本研究中加以确定 ,从而确保数据处理的计算机化及精确性。　方法　自弓形虫 RH株及弓形虫 ME49株速殖子提取 RNA作为探针。PCR法扩增的 ESTs及杂交对照采用 Micro Grid TM机点样于载玻片上。经杂交后的玻片以 Scan Array30 0 0 TM扫描并对结果进行分析。　结果　DNA含量可在 5 ng/ μl. 2 5 0 ng/ μl.间变化 ,最佳值为 5 0 ng/μl.为分析非特异性杂交的影响必须同时设置阴性对照 ;对结果的计算机化处理需要几个基线的不同的基因表达作为对照。　结论　当采用适当的对照、重复及完整的 EST后。

关键词：顶器动物亚门速殖子毒性 cDNA 基因表达弓形虫