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The Almost Sure Central Limit Theorems for the Maxima of Sums under Some New Weak Dependence Assumptions

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Acta Mathematica Sinica,English Series 2013年第3期29卷 429-448页

作者： Marcin DUDZINSKI Przemyslaw gorka Faculty of Applied Informatics and Mathematics Warsaw University of Life Sciences (SGGW) Department of Mathematics and Information Sciences Warsaw University of Technology

We prove the almost sure central limit theorems for the maxima of partial sums of r.v.＇s under a general condition of dependence due to Doukhan and Louhichi. We will separately consider the centered sequences and the... 详细信息

关键词： Almost sure central limit theorem new weakly dependent random variables maxima ofpartial sums Markov chains

Spawning ascent durations of pelagic spawning reef fishes

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Current Zoology 2012年第1期58卷 95-102页

作者： Habrun, Caroline A. Sancho, gorka College of Charleston Department of Biology Grice Marine Laboratory 205 Fort Johnson Road Charleston SC 29412 USA

Predation risks have been hypothesized to influence spawning behaviors of coral reef fishes that broadcast gametes pelagically. The duration of spawning ascents of 13 species were measured from video footage at a single spawning site for mul- tiple coral reef fishes to investigate ff this behavior was influenced by varying risks of predation. Fishes that spawned in pairs had as- cents of longer duration than group-spawning species. Duration of spawning ascents did not vary between fishes spawning at daytime and dusk, nor between group-spawning species with specific anti-predatory morphological adaptations. These results indicate that risk of predation may not significantly influence the duration of spawning ascents of pair spawning reef fishes at our study site, while group-spawning behaviors are influenced by predation. Avoidance of egg predation by benthic organisms and female mate choice are more likely to influence the pelagic spawning behaviors of all fishes observed [Current Zoology 58 （1）： 95-102, 2012].

关键词： Reef fishes Behavior Spawning Predation Mate selection

Integration of chemical fractionation, Mosbauer spectrometry, and magnetic methods for identification of Fe phases bonding heavy metals in street dust

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Journal of Environmental Sciences 2023年第2期124卷 875-891页

作者： Beata gorka-Kostrubiec Ryszard Swietlik Tadeusz Szumiata Sylwia Dytłow Marzena Trojanowska Institute of Geophysics Polish Academy of Sciencesks.Janusza 6401-452 WarsawPoland Department of Environmental Chemistry and Engineering University of Technology and Humanities in Radom27 Bolesława Chrobrego Str.26-600 RadomPoland Department of Physics Faculty of Mechanical EngineeringUniversity of Technology and Humanities in Radom54 Krasickiego Str.26-600 RadomPoland

Street dust is one of the most important carriers of heavy metals(HMs)originating from natural and anthropogenic *** main purpose of the work was to identify which of Fe-bearing phases bind HMs in street *** parameters of the Fe-bearing components,mainly magnetically strong iron oxides,are used to assess the level of HM *** sequential extraction combined with magnetic methods(magnetic susceptibility,magnetization,remanent magnetization)allowed determining the metal-bearing fractions and identifying the iron forms that aremostly associated with traffic-related *** use of Mossbauer spectrometry(MS)supplemented bymagnetic methods(thermomagnetic curves and psarameters of hysteresis loops)enabled precise identification and characterization of iron-containing *** classification of HMs into five chemical fractions differing in mobility and bioaccessibility revealed that iron is most abundant(over 95%)in the residual fraction followed by the reducible *** were present in reducible fraction in the following order:Pb>Zn>Mn>Cr>Ni>Fe>Cu,while they bound to the residual fraction in the following order:Fe>Ni>Cr>Mn>Pb>Cu>*** signature of the anthropogenic origin of street dust is the presence of strongly nonstoichiometric and defected grains of magnetite and their porous *** also occurs as an admixture with maghemite,and with a significant proportion of hematite.A distinctive feature of street dust is the presence of metallic iron and iron *** methods are efficient in the screening test to determine the level ofHMpollution,while MS helps to identify the iron-bearing minerals through the detection of iron.

关键词： Heavy metals Street dust Chemical fractionation Magnetic methods Mossbauer spectrometry

Environmental pollution with psychiatric drugs

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World Journal of Psychiatry 2021年第10期11卷 791-804页

作者： Julene Argaluza Saioa Domingo-Echaburu gorka Orive Juan Medrano Rafael Hernandez Unax Lertxundi Department of Epidemiology and Public Health Bioaraba Health Research InstituteVitoria-Gasteiz 01002Spain Department of Pharmacy Alto Deba Integrated Health Care OrganizationArrasate 20500Spain NanoBioCel Group Laboratory of PharmaceuticsSchool of PharmacyUniversity of the Basque Country UPV/EHUPaseo de la Universidad 7Vitoria-Gasteiz 01006Spain Biomedical Research Networking Centre in Bioengineering Biomaterials and Nanomedicine(CIBER-BBN)Vitoria-Gasteiz 01006Spain Bioaraba NanoBioCel Research GroupVitoria-Gasteiz 01006Spain Singapore Eye Research Institute Discovery TowerSingapore 168751Singapore Department of Psychiatry Biocruces Bizkaia Health Research InstituteMental Health Network Research GroupOsakidetzaPortugalete 48920Spain Department of Internal Medicine Araba Mental Health NetworkVitoria-Gasteiz 01006Spain Bioaraba Health Research Institute/Osakidetza Basque Health Service Araba Mental Health NetworkAraba Psychiatric HospitalPharmacy ServiceVitoria-Gasteiz 01006AlavaSpain

Among all contaminants of emerging interest,drugs are the ones that give rise to the greatest *** of the multiple stages of the drug's life cycle(production,consumption and waste management)is a possible entry point to the different environmental *** drugs have received special attention because of two ***,their use is ***,many of them act on phylogenetically highly conserved neuroendocrine systems,so they have the potential to affect many non-target ***,wastewater is considered the most important source of drugs to the ***,the currently available wastewater treatment plants are not specifically prepared to remove drugs,so they reach practically all environmental matrices,even tap *** drugs are designed to produce pharmacological effects at low concentrations,they are capable of producing ecotoxicological effects on microorganisms,flora and fauna,even on human *** has also been observed that certain antidepressants and antipsychotics can bioaccumulate along the food *** pollution is a complicated and diffuse problem characterized by scientific uncertainties,a large number of stakeholders with different values and interests,and enormous *** solutions consist on acting at source,using medicines more rationally,eco-prescribing or prescribing greener drugs,designing pharmaceuticals that are more readily biodegraded,educating both health professionals and citizens,and improving coordination and collaboration between environmental and healthcare ***,end of pipe measures like improving or developing new purification systems(biological,physical,chemical,combination)that eliminate these residues efficiently and at a sustainable cost should be a ***,we describe and discuss the main aspects of drug pollution,highlighting the specific issues of psychiatric drugs.

关键词： Antipsychotics Pharmaceuticals in the environment Drug pollution Antidepressants Wastewater Ecotoxicity

Correcting distortions of thin-walled machined parts by machine hammer peening

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Chinese Journal of Aeronautics 2024年第6期37卷 439-453页

作者： Aitor MADARIAGA Mikel CUESTA gorka ORTIZ-DE-ZARATE Eneko SAENZ-DE-ARGANDONA Denis SORIANO Michael B.PRIME Pedro Jose ARRAZOLA Department of Materials University of ManchesterOxford RoadManchester M139PLUnited Kingdom Mechanical and Industrial Production Department Faculty of EngineeringMondragon UnibertsitateaArrasate 20500Spain Los Alamos National Laboratory Los AlamosNew MexicoUSA

Thin-walled aerostructural components frequently get distorted after the machining *** to correct distortions or eventually rejecting parts significantly increases the *** paper proposes a new approach to correct distortions in thin-walled components by strategically applying hammer peening on target surfaces of a machined *** alloy 7475-T7351 was chosen for this *** study was divided in two ***,the residual stresses(RS)induced by four different pneumatic hammer peening conditions(modifying the stepover distance and initial offset)were characterised in a test coupon,and one of the conditions was selected for the next *** the second stage,a FEM model was used to predict distortions caused by machining in a representative ***,the RS induced by hammer peening were included in an FEM model to define two hammer peening strategies(varying the coverage area)to analyse the capability to reduce *** workpieces were machined and then treated with the simulated hammer peening strategies for experimental *** in the test coupon showed that pneumatic hammer peening can generate high compressive RS(-50 to350 MPa)up to 800 lm depth,with their magnitude increasing with a reduced stepover *** of hammer peening over 4% of the surface of the representative workpiece reduced the machininginduced distortions by 37%,and a coverage area of 100% led to and overcorrection by a factor of *** confirms that hammer peening can be strategically applied(in target areas and changing the percentage of coverage)to correct low or severe distortions.

关键词： Aeronautics Machining,Hammer Peening Aluminium alloy Distortions Residual Stress

Physiotherapeutic techniques used in the management of patients with peripheral nerve injuries

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Neural Regeneration Research 2015年第11期10卷 1770-1772页

作者： Krzysztof Suszynski Wieslaw Marcol Dariusz gorka Department of Physiotherapy Department of Sports Medicine and Physiology of Physical Effort School of Health Sciences in Katowice Medical University of Silesia Department of Physiology School of Medicine in Katowice Medical University of Silesia

Peripheral nerve injuries affect a wide range of functional,manual and social function,and frequently lead to constant *** complete transection of nerve,axonal degeneration process gives rise to a variety of symptoms including hyperesthesia,reduced or altered sensation,pain and atrophy（Lee and Wolfe,2000）.With an array of choices for surgical and treating peripheral nerve injuries, there is also, a lot of new, coherent strategies on rehabilitation and physiotherapy protocols - which should be indispensable after injury. Physiotherapy, with a view to compensate dysfunctions relieves in sensory symptoms and creates grater neuroplasticital potential, forms essential part of the treatment for people after peripheral nerve injuries （Inoue et al., 2003）.

关键词：表单创伤和损伤感觉过敏内皮缩血管肽类铅疼痛萎缩血气分析

Photosynthetic and Molecular Markers of CO_2-mediated Photosynthetic Downregulation in Nodulated Alfalfa

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Journal of Integrative Plant Biology 2013年第8期55卷 721-734页

作者： Alvaro Sanz-Sez gorka Erice Iker Aranjuelo Ricardo Aroca Juan Manuel Ruíz-Lozano Jone Aguirreolea Juan Jos Irigoyen Manuel Sanchez-Diaz Department of Plant Biology University of NavarraPamplonaE-31008Spain Department of Plant Biology University of BarcelonaBarcelonaE-8028Spain Department of Plant Biology University of Illinois at Urbana-Champaign61801USA Agrobiotechnology Institute Public University of NavarraMutilva BajaE-31192Spain Department of Soil Microbiology and Symbiotic Systems Zaidin Experimental Station(CSIC)GranadaE-18008.Spain

Elevated CO2 leads to a decrease in potential net photosynthesis in long-term experiments and thus to a reduction in potential growth. This process is known as photosynthetic downregulation. There is no agreement on the definition of which parameters are the most sensitive for detecting CO2 acclimation. In order to investigate the most sensitive photosynthetic and molecular markers of CO2 acclimation, the effects of elevated CO2, and associated elevated temperature were analyzed in alfalfa plants inoculated with different Sinorhizobium meliloti strains. Plants （Medicago sativa L. cv. Aragon） were grown in summer or autumn in temperature gradient greenhouses （TGG）. At the end of the experiment, all plants showed acclimation in both seasons, especially under elevated summer temperatures. This was probably due to the lower nitrogen （N） availability caused by decreased N2-fixation under higher temperatures. Photosynthesis measured at growth CO2 concentration, rubisco in vitro activity and maximum rate of carboxylation were the most sensitive parameters for detecting downregulation. Severe acclimation was also related with decreases in leaf nitrogen content associated with declines in rubisco content （large and small subunits） and activity that resulted in a drop in photosynthesis. Despite the sensitivity of rubisco content as a marker of acclimation, it was not coordinated with gene expression, possibly due to a lag between gene transcription and protein translation.

关键词： Carbon dioxide Medicago sativa (alfalfa) photosynthetic downregulation RbcL and RbcS Sinorhizobium meliloti.

Performance Calibration of Articulated Arm Coordinate Measuring Machine

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Journal of Mechanics Engineering and Automation 2013年第10期3卷 602-608页

作者： Unai Mutilba gorka Kortaberria Aitor Olarra Antonio Gutierrez Mechanical Engineering Unit IK4 Tekniker Research Centre Eibar 20600 Spain

This paper presents the method for the performance calibration of AACMM （articulated arm coordinate measuring machines） according to ASME B89.4.22 Standard. The growing use of this class of measurement equipment has been accompanied by an absence of authorized laboratories to provide calibration certificates for its performance. Due to ASME B89.4.22 and VD12617-9 are nowadays the unique standards in the field of AACMM verification, IK4 Tekniker has compared both of them in order to develop internal test procedures to yield reliable performance calibration results. As a result, IK4 Tekniker has been recognized by the Spanish Accreditation Body （ENAC） in the field of AACMM calibration. Internal test procedures and uncertainty evaluation analysis have been developed as well as ENAC certificated reference test equipments have been acquired to ensure a suitable AACMM calibration process.

关键词： AACMM performance calibration ASME B89.4.22 ENAC uncertainty

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