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Putting the brakes on chloroplast stress signaling

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Molecular Plant 2022年第3期15卷 388-390页

作者： david w.Tano Jesse D.woodson The School of Plant Sciences University of Arizona303 Forbes Hall1140 E.South Campus DriveTucsonAZUSA

As sessile organisms,plants must be able to sense their surroundings and *** way plants do this is by using their energy-producing organelles(chloroplasts and mitochondria).During environmental stress,these organelles experience metabolic changes that induce signals for *** many metabolites have been proposed as signaling factors,reactive oxygen species(ROS)are known to play prominent *** the chloroplast,the ROS singlet oxygen(^(1)O_(2))is naturally produced during impaired photosynthesis and can lead to retrograde signaling to the nucleus(to control the expression of hundreds of genes),chloroplast degradation,and cell death.

关键词： organelle stress hundreds

A Dynamic network Game of the Fintech Industry

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Journal of the Operations Research Society of China 2024年第1期12卷 5-33页

作者： david w.K.Yeung Leon A.Petrosyan Ying-Xuan Zhang SRS Consortium for Advanced Study in Cooperative Dynamic Games Shue Yan UniversityHong KongChina Center of Game Theory St Petersburg State UniversitySaint PetersburgRussia Department of Finance Asia UniversityTaichung CityTaiwanChina Faculty of Applied Mathematics-Control Processes and Center of Game Theory St Petersburg StateUniversitySaint PetersburgRussia

economies of scale,economies of scope,and technology spillover are decisive eco-nomic elements that are crucial to the development in the Fintech *** externalities are often realized through network *** this paper,we presenta dynamic network ofﬁnancialﬁrms which exhibits these decisive *** game equilibria are characterized.A Pareto efﬁcient solution involving col-laboration of allﬁrms is *** obtain a fair-share distribution of cooperativegains,the Shapley value is adopted as the sharing *** distributionmechanisms which guarantee the fulﬁlment of the Shapley value distribution in eachstage of the cooperation duration are derived.

关键词： network game network equilibria Shapley value Pareto efﬁcientcooperation

Metabolic regulation of pyroptotic cell death expands the therapeutic landscape for treating inflammatory disease

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Signal Transduction and Targeted Therapy 2021年第2期6卷 202-203页

作者： david e.Place Thirumala-Devi Kanneganti Department of Immunology St.Jude Children’s Research HospitalMemphisTNUSA

A recent study in Science by Fiachra Humphries et al.1 reveals an important role for the metabolic intermediate fumarate in reducing gasdermin D-mediated *** work adds a new inhibitor to the growing toolkit with the potential for treating pyroptosis-driven inflammatory *** is an inflammatory programmed cell death pathway initiated by direct sensing of pathogen-derived ligands or indirect sensing of changes to the normal cell state through sensors that can activate the inflammasome.

关键词： inflammatory death al.

Forge AHeAD with stricter criteria in future trials of embolic stroke of undetermined source

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neural Regeneration Research 2022年第5期17卷 1009-1010页

作者： david Z.Rose Scott e.Kasner Department of neurology Morsani College of MedicineUniversity of South FloridaTampaFLUSA Department of neurology Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA

what lurks within the crypt?with more than 200 known causes of is chemic stroke(Saver,2016),what should be the minimum work up?Many centers offer high-resolution brain imaging and vessel studies,telemetry monitoring f... 详细信息

关键词： strict thoracic centers

Longwall automation: Delivering enabling technology to achieve safer and more productive underground mining

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International Journal of Mining Science and Technology 2015年第6期25卷 865-876页

作者： Ralston Jonathon C. Reid david C. Dunn Mark T. Hainsworth david w. Coal Mining Research Program CSIRO Energy

The ongoing need to deliver improved safety, productivity and environmental benefit in coal mining presents an open challenge as well as a powerful incentive to develop new and improved solutions. This paper assesses the critical role that enabling technologies have played in the delivery of remote and automated capability for longwall mining. A brief historical account is given to highlight key technical contributions which have influenced the direction and development of present-day longwall technology. The current state of longwall automation is discussed with particular attention drawn to the technologies that enable automated capability. Outcomes are presented from an independently conducted case study that assessed the impact that CSIRO＇s LASC longwall automation research has made to the longwall mining industry in Australia. Importantly, this study reveals how uptake of this innova- tive technology has significantly benefitted coal mine productivity, improved working conditions for personnel and enhanced environmental outcomes. These benefits have been widely adopted with CSIRO automation technology being used in 60 per cent of all Australian underground operations. International deployment of the technology is also emerging. The paper concludes with future challenges and opportunities to highfight the ongoing scope for longwall automation research and development.

关键词： Safety Productivity environment Mining automation Longwall mining Remote mining

Impacts of bovine spongiform encephalopathy and avian influenza on U.S. meat demand

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Journal of Integrative Agriculture 2015年第6期14卷 1130-1141页

作者： Jianhong e Mu Bruce A McCarl Amy Hagerman david Bessler Department of Applied economics Oregon State University Department of Agricultural economics Texas A&M University Center for epidemiology and Animal Health Veterinary Services Animal and Plant Health Inspection Service United States Department of Agriculture

This paper examines the U.S. meat demand impacts of the announced outbreaks of bovine spongiform encephalopathy（BSe） and avian influenza（AI）. Findings indicate that beef and chicken demand was negatively affected by BSe and AI disease outbreaks. Specifically, in the short run, U.S. consumers shift demand due to both outbreaks but more so due to domestic disease outbreaks than for outbreaks occurring overseas-the impact of U.S. AI outbreaks is about 0.5% for beef and the impact of U.S. BSe cases is around –0.42% for beef and 0.4% for pork, respectively. Regarding the BSe shock on meat demand, there is a high rate of beef demand adjusted from disturbance to the long-run equilibrium and a lower adjustment rate for chicken demand because of the repeated outbreaks of AI worldwide. In the long run, information related to severe, persistently recurring overseas animal disease outbreaks changes U.S. consumers＇ meat consumption patterns. Although effects of animal diseases on U.S. meat demand were statistically significant, the magnitudes were small-the impact of wHO reported human death numbers for AI is 0.005% for beef, –0.002% for pork, and –0.006% for chicken and the impact of U.S. BSe cases is 1.1% for pork and –0.7% for chicken.

关键词： spongiform avian chicken bovine encephalopathy overseas disturbance adjustment pathogenic deaths

Ontogenetic shift in response to prey-derived chemical cues in prairie rattlesnakes Crotalus viridis viridis

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Current Zoology 2012年第4期58卷 549-555页

作者： Anthony J. SAVIOLA david CHISZAR Stephen e MACKeSSY School of Biological Sciences University of Northern Colorado 501 20th Street CB 92 Greeley CO 80639 USA Department of Psychology CB 345 University of Colorado Boulder Colorado 80309 USA

Snakes often have specialized diets that undergo a shift from one prey type to another depending on the life stage of the snake. Crotalus viridis viridis （prairie rattlesnake） takes different prey at different life stages, and neonates typically prey on ectotherms, while adults feed almost entirely on small endotherms. we hypothesized that elevated rates of tongue flicking to chemical stimuli should correlate with particular prey consumed, and that this response shifts from one prey type to another as in- dividuals age. To examine if an ontogenetic shift in response to chemical cues occurred, we recorded the rate of tongue flicking for 25 neonate, 20 subadult, and 20 adult （average SVL = 280.9, 552, 789.5 mm, respectively） wild-caught C. v. viridis to chemi- cal stimuli presented on a cotton-tipped applicator; water-soluble cues from two ectotherms （prairie lizard, Sceloporus undulatus, and house gecko, Hemidactylusfrenatus）, two endotherms （deer mouse, Peromyscus maniculatus and lab mouse, Mus musculus）, and water controls were used. neonates tongue flicked significantly more to chemical cues of their common prey, S. undulatus, than to all other chemical cues; however, the response to this lizard＇s chemical cues decreased in adult rattlesnakes. Subadults tongue flicked with a higher rate of tongue flicking to both S. undulatus and P. maniculatus than to all other treatments, and adults tongue flicked significantly more to P. maniculatus than to all other chemical cues. In addition, all three sub-classes demonstrated a greater response for natural prey chemical cues over chemical stimuli of prey not encountered in the wild （M. musculus and H. frenatus）. This shift in chemosensory response correlated with the previously described ontogenetic shifts in C. v. viridis diet. Be-cause many vipers show a similar ontogenetic shift in diet and venom composition, we suggest that this shift in prey cue dis- crimination is likely a general phenomenon among viperid snakes.

关键词： Gape-limited predator Prey choice Trophic adaptation Vomeronasal chemoreception

Coordinated Control Architecture for Motion Management in ADAS Systems

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Ieee/CAA Journal of Automatica Sinica 2018年第2期5卷 432-444页

作者： Tzu-Chi Lin Siyuan Ji Charles e. Dickerson david Battersby the wolfson school of mechanical electrical and manufacturing engineeringloughborough universityLoughhoroughLE11 3TUUK jaguar land rover GaydonCV35 0RRUK ieee

Advanced driver assistance systems(ADAS) seek to provide drivers and passengers of automotive vehicles increased safety and comfort. Original equipment manufacturers are integrating and developing systems for distance keeping, lane keeping and changing and other functionalities. The modern automobile is a complex system of systems. How the functionalities of advanced driver assistance are implemented and coordinated across the systems of the vehicle is generally not made available to the wider research community by the developers and manufactures. This paper seeks to begin filling this gap by assembling open source physics models of the vehicle dynamics and ADAS command models. Additionally, in order to facilitate ADAS development and testing without having access to the details of ADAS, a coordinated control architecture for motion management is also proposed for distributing ADAS motion control commands over vehicle systems. The architecture is demonstrated in a case study where motion is coordinated between the steering and the braking systems, which are typically used only for a single functionality. The integrated vehicle and system dynamics using the coordinated control architecture are simulated for various driving tasks. It is seen that improved trajectory following can be achieved by the proposed coordinated control architecture. The models, simulations and control architecture are made available for open access.

关键词： Index Terms-Coordinated system feed-forward and feedbackcontrol integration control modeling and simulation tire mod-eling vehicle modeling vehicle dynamics control.

Drag on Hydroid-Fouled nets – An experimental Approach

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China Ocean engineering 2015年第3期29卷 369-389页

作者： Pl LADeR david w. FReDRIKSSON Jana GUeNTHeR Zsolt VOLeNT Nina BLOCHeR david KRISTIANSeN Lars GANSeL Jud DeCew SINTeF Fisheries and Aquaculture United States Naval Academy University of new Hampshire

The present study investigated the drag increase on aquaculture nets due to biofouling of the colonial hydroid ectopleura larynx. It had two main parts： firstly the growth characteristics of e. larynx were investigated by use of field tests at a Norwegian aquaculture site; secondly the hydrodynamic drag on the fouled twines was studied in a towing tank by using fabricated models of net twines with artificial hydroid fouling. In the field tests, the growth of the hydroids was first measured after three weeks of immersion and then again after six weeks. During this interval, the density of hydroids and the thickness of the hydroid stem were almost constant（1.4 hydroids/mm and 0.29 mm, respectively）, while the average length of the hydroids increased from 6.4 to 11.2 mm. The hydroid length followed a Rayleigh distribution, while the thickness was normal（Gaussian） distributed. Replicas of twines with three different levels of hydroid growth were made（1.5 hydroids/mm twine, hydroid length 9 mm, 16 mm and 20 mm）, and the drag on these twines was measured at different towing velocities（0.1 to 1.4 m/s） and with different twine configurations. For the twine with the shortest hydroids（9 mm）, the drag was from 1.5 times（Re=4000） to 2.2 times（Re=1000） the drag on a clean twine. For the longest hydroids（21 mm）, the drag was 2 times and 3.8 times, respectively.

关键词： hydroid biofouling aquaculture net hydrodynamic drag