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Potential of the neonicotinoid imidacloprid and the oxadiazine indoxacarb for controlling five coleopteran pests of stored grain

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Insect science 2012年第1期19卷 96-101页

作者： gregory J. Daglish Manoj K. Nayak Agri-science Queensland Department of Employment Economic Development and Innovation Brisbane Queensland Australia

The potential for using imidacloprid （a neonicotinoid） and indoxacarb （an oxadiazine） as grain protectants was investigated in bioassays against resistant strains of five stored grain beetles. The species investigated were Rhyzopertha dominica （E）（the lesser grain borer）, sitophilus oryzae （L.）（the rice weevil）, Tribolium castaneum （Herbst）（the rust-red flour beetle）, Oryzaephilus surinamensis （L.）（the saw tooth flour beetle）, and Cryptolestesferrugineus （stephens）（the fiat grain beetle）. Each of these species has developed resistance to one or more protectants, including organophosphorus insecticides, synthetic pyrethroids and the juvenile hormone analogue methoprene. Mortality and re- production after a 2-week exposure of adults to treated wheat depended on species, dose and insecticide. Imidacloprid had no effect on s. oryzae at any dose, but none of the other species produced any live progeny at 10 mg/kg. Indoxacarb had no effect on T. castaneum at any dose, but none of the other species produced any live progeny at 5 mg/kg. The results show that although both imidacloprid and indoxacarb can control at least four of the five key pests tested at doses comparable to those used for organophosphorus protectants, more potent neonicotinoid or oxadiazine insecticides would be needed than either of these to provide broad spectrum protection of stored grain .

关键词： beetles imidacloprid indoxacarb stored grain

NitroMAC：An instrument for the measurement of HONO and intercomparison with a long-path absorption photometer

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Journal of Environmental sciences 2016年第2期28卷 105-113页

作者： Charbel Afif Corinne Jambert Vincent Michoud Aurélie Colomb gregory Eyglunent Agnès Borbon Véronique Daele Jean-Francois Doussin Pascal Perros Emissions Measurements and Modeling of the Atmosphere Laboratory EGFEM Unit Center for Analysis and Research Faculty of SciencesSaint Joseph University Beirut Lebanon Laboratoire Interuniversitaire des systemes Atmospheriques (LIsA) UMR7583 CNRS Universite Paris-Est-Creteil (UPEC) et Universite Paris Diderot (UPD) Institut Pierre Simon Laplace (IPSL) Creteil France Institut de Combustion Aerothermique Reactivite et Environnement CNRS Orleans France

Nitro MAC（French acronym for continuous atmospheric measurements of nitrogenous compounds） is an instrument which has been developed for the semi-continuous measurement of atmospheric nitrous acid（HONO）. This instrument relies on wet chemical sampling and detection using high performance liquid chromatography（HPLC）-visible absorption at540 nm. sampling proceeds by dissolution of gaseous HONO in a phosphate buffer solution followed by derivatization with sulfanilamide/N-（1-naphthyl）-ethylenediamine. The performance of this instrument was found to be as follows： a detection limit of around 3 ppt with measurement uncertainty of 10% over an analysis time of 10 min. Intercomparison was made between the instrument and a long-path absorption photometer（LOPAP） during two experiments in different environments. First, air was sampled in a smog chamber with concentrations up to 18 ppb of nitrous acid. Nitro MAC and LOPAP measurements showed very good agreement. Then, in a second experiment, ambient air with HONO concentrations below250 ppt was sampled. While Nitro MAC showed its capability of measuring HONO in moderate and highly polluted environments, the intercomparison results in ambient air highlighted that corrections must be made for minor interferences when low concentrations are measured.

关键词： Atmospheric measurements Nitrous acid sulfanilamide/N-(1-naphthyl)-ethylenediamine Long-path absorption photometer French acronym for continuous atmospheric measurements of nitrogenous compounds(NitroMAC)

New variation of median arcuate ligament compression causing hepatic arterial hypoperfusion during liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2020年第4期19卷 394-395页

作者： Noel Cassar stephen gregory Krishna Menon Institute of Liver studies King’s Healthcare PartnersDenmark Hill SiteLondon SE59RSUK

satisfactory blood flow after hepatic arterial anastomosis in liver transplantation is a critical point of the *** with this anastomosis can result in hepatic artery thrombosis with resultant graft failure and patient morbidity and *** of hepatic artery thrombosis include problematic technique,hepatic artery dissection,external compression(*** hematoma),hypercoagulable state,splenic arterial steal and rarer causes such as median arcuate ligament compression(MALC).A careful review of preoperative radiology and imaging will reveal these rare instances and enable a proper intraoperative plan.

关键词： hepatic arterial ligament

sexual selection in cane toads Rhinella marina： A male＇s body size affects his success and his tactics

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Current Zoology 2013年第6期59卷 747-753页

作者： Haley BOWCOCK gregory P. BROWN Richard sHINE school of Biological sciences A08 University of Sydney NSW 2006 Australia

Abstract Male body size can play an important role in the mating systems of anuran amphibians. We conducted labora- tory-based trials with cane toads Rhinella （Bufo） marina from an invasive population in the wet-dry tropics of northern Australia, to clarify the effects of a male＇s body size on his reproductive success and behavior （mate choice）. Males were stimulated with a synthetic hormone to induce reproductive readiness. Larger body size enhanced a male toad＇s ability to displace a smaller rival from amplexus, apparently because of physical strength： more force was required to dislodge a larger than a smaller amplectant male. A male＇s body size also affected his mate-choice criteria. Males of all body sizes were as likely to attempt amplexus with another male as with a female of the same size, and preferred larger rather than smaller sexual targets. However, this size prefe- rence was stronger in larger males and hence, amplexus was size-assortative. This pattern broke down when males were given access to already-amplectant male-female pairs： males of all body sizes readily attempted amplexus with the pair, with no size discrimination. An amplectant pair provides a larger visual stimulus, and prolonged amplexus provides a strong cue for sex iden- tification （one of the individuals involved is almost certainly a female）. Thus, a male cane toad＇s body size affects both his ability to defeat rivals in physical struggles over females, and the criteria he uses when selecting potential mates, but the impacts of that selectivity depend upon the context in which mating occurs

关键词： Mating systems size-assortative mating Large-male advantage Anurans Invasive species

Transcranial electrical stimulation in neurological disease

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Neural Regeneration Research 2022年第10期17卷 2221-2222页

作者： gregory L.Brown Michael T.Brown Neurished HersheyPAUSA

Increased lifespan is one of society’s greatest achievements,but this longevity increases the prevalence of diseases of aging,such as neurological ***,neurological disorders are the leading cause of disability and the second leading cause of deaths(Feigin et al.,2019).Furthermore,these diseases affect people in low-,medium-,and high-income countries(Feigin et al.,2019).Current technology to modify neurological burden is scarce,which poses numerous challenges for healthcare,global policy,and economic stability(Feigin et al.,2019).To face these challenges,brain stimulation technology,such as transcranial electrical stimulation(TEs),has displayed exciting *** et al.(2017)provide a detailed overview of the safety and application of ***,electrodes are attached to the head and a weak current(e.g.,1-2 mA)is applied through the scalp,skull,and into the brain for 10-30 minutes to activate neurons(Antal et al.,2017).The technique is extremely safe with no serious adverse effects reported from thousands of sessions(Antal et al.,2017).The most common side effects are a tingling/itching sensation or redness at the stimulation site(Antal et al.,2017).However,these side effects can be minimized by reducing the electrode-skin impedance,slowly ramping up and ramping down TEs,or using topical analgesics(Antal et al.,2017).The development of TEs may repair neural dysfunction and stem the oncoming incidence of neurodegenerative disease.

关键词： stimulation sensation electrical

Orientalism, ＂Yellow Peril,＂ and the ＂New Yellow Journalism

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Fudan Journal of the Humanities and social sciences 2016年第1期9卷 123-146页

作者： Josef gregory Mahoney shanghai China

In this essay, I take the recent publication of several texts examining the historical and contemporary phenomena of sinophobia, Orientalism, and sinologism as an opening for theorizing underlying and related issues including pervasive anti-China biases in Western journalism and China＇s position therein. In addition to illustrating how the concepts of Orientalism arise from Western historical and epistemological foundations, I theorize what I call a ＂new yellow journalism＂ that has grown in tandem with ＂China＇s rise＂ and the threat this indicates to many Western observers, and how this threat and others like it have been met in the age of ＂new imperialism.＂ I compare this new phenomenon with its historical antecedents, ＂yellow journalism＂ and America＇s emergence as a imperialism power with the spanish-American War （1898）, and note several key insights offered by recent critical analyses of that period, which together suggest a confluence of different players, including policymakers, new media business models, and what I describe as a type of public ＂corporatism＂ in which citizens, particularly Americans, function effectively as shareholders in maintaining hegemonic if not imperialist power.

关键词： China - Orientalism · Yellow peril - Yellow journalism - sinophobia sinologism · New imperialism · Anti-China biases

Noninvasive ventilation for pediatric interfacility transports:a retrospective study

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World Journal of Pediatrics 2020年第4期16卷 422-425页

作者： samantha Holbird Tanya Holt Adam shaw gregory Hansen College of Medicine University of SaskatchewanSaskatoonSKCanada Division of Pediatric Critical Care Jim Pattison Children’s Hospital103 Hospital DriveSaskatoonSKS7N 0W8Canada

Background To characterize pediatric patients supported with continuous positive airway pressure and bilevel positive airway pressure(CPAP/BiPAP)or high-flow nasal cannula(HFNC)during interfacility transport(IFT).Methods A retrospective study with a provincial pediatric transport team from a tertiary hospital pediatric intensive care *** patients aged 28 days tos,who required IFT between January 2017 and December 2018,were identified through a transport registry and were included in the *** A total of 118(26.7%)patients received CPAP/BIPAP or HFNC support for *** most common respiratory diagnosis was bronchiolitis(46%).These patients were placed on respiratory support,31.4 minutes after the transport team’s *** required intubation during their IFT,despite mean transport times of 163 *** This study may provide important information for programs with large catchment areas,in which large distances and transport times should not be barriers to NIV implementation.

关键词： Children Critical illness Intubation Noninvasive ventilation Transportation of patients

On the mechanistic origins of maximum strength in nanocrystalline metals

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npj Computational Materials 2020年第1期6卷 393-404页

作者： Ankit Gupta Jacob Gruber satish s.Rajaram gregory B.Thompson David L.McDowell Garritt J.Tucker Colorado school of Mines Mechanical EngineeringGoldenCO 80401USA Department of Mechanical Engineering Drexel UniversityPhiladelphiaPA 19104USA Department of Metallurgical and Materials Engineering University of AlabamaTuscaloosaAL 35487USA Department of Mechanical Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

The maximum strength of polycrystalline metals/alloys has been suggested to occur at nanoscale grain sizes where the governing deformation mechanism transitions from dislocation plasticity to grain boundary mediated *** tremendous progress recently uncovering links between transitions in nanoscale mechanisms and peak strength,the scientific literature is mostly devoid of any quantitative support,owing to the difficulty in measuring the resolved contribution of individual mechanisms to microstructural strain *** this study,the contribution of individual nanoscale mechanisms to the overall deformation of nanocrystalline Ni is calculated from atomistic simulations leveraging continuum-based kinematic metrics to compute mechanistic contributions to microstructural strain.

关键词： strength deformation grain

spherical Parameterization of Marching Cubes Isosurfaces Based upon Nearest Neighbor Coordinates

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Journal of Computer science & Technology 2009年第1期24卷 30-38页

作者： gregory M.Nielson 张丽艳李建黄辉扬 Arizona state University TempeAZU.S.A. Nanjing University of Aeronautics and Astronautics Handong Global University National Central University

We present some new methods for parameterizing the triangle mesh surface （TMs） which result from the Marching Cubes （MC） algorithm. The methods apply to surfaces of genus zero and the parameter domain is a unit sphere. We take advantage of some special properties of the TMs resulting from the MC algorithm to obtain simple, computational efficient representations of the nearest neighbor coordinates and utilize these coordinates in the characterization of the parameterization by means of systems of equations which are solved iteratively. Examples and comparisons are presented.

关键词： isosurface marching cubes mapping parameterization spherical triangle mesh surface