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Using tickler chains to promote more environmentally benign trawls in an Australian penaeid fishery

Aquaculture and Fisheries 2023年第3期8卷 316-322页

作者： Matt.K.Broadhurst daniel j.Tolhurst NSW Department of Primary Industries Fisheries Conservation Technology UnitNational Marine Science CentreSouthern Cross University2 Bay DriveCoffs HarbourNSW2450Australia Marine and Estuarine Ecology Unit School of Biological SciencesUniversity of QueenslandBrisbaneQLD4072Australia The Roslin Institute and Royal(Dick)School of Veterinary Studies University of EdinburghEaster BushMidlothianEH259RGUnited Kingdom

There has been an increasing emphasis on reducing the environmental impacts of penaeid trawls by modifying their anterior *** one Australian estuary,this approach has culminated in a new generic trawl comprising a slightly smaller mesh size,and steeper and shorter side panels than traditional trawls,combined with a top panel extending forwards of the bottom panel(termed‘lead-ahead’)and no headline *** study sought to investigate if an additional simple,cumulative modification(tickler chain)might help promote adoption of the new trawl,via improved penaeid *** volunteer fishers towing pairs of either the traditional or new trawls in double rigs were asked if an observer could accompany fishing trips,and alternately attach a light tickler chain(~3 kg)anterior to the ground gear of one *** of the trawl design,the tickler chains significantly increased the catch weights of penaeids,but relatively more so in the new trawls(by 1.11×vs 1.08×).The tickler chains also significantly increased the number and weight of total bycatch in the traditional trawls(by up to 1.22×),but not in the new trawls-although there were variable species-specific *** terms of total effects,the data support using tickler chains to increase the efficiency of the new trawls and their cumulative benefits,and could be promoted to facilitate broader inter-and intra-fleet adoption.

关键词： Ground-gear Penaeid Selectivity Tickler chain Trawling

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Effects of a remote,YouTube-delivered exercise intervention on young adults’physical activity,sedentary behavior,and sleep during the COVID-19 pandemic:Randomized controlled trial

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journal of Sport and Health Science 2022年第2期11卷 145-156,I0002页

作者： daniel j.McDonough Melina A.Helgeson Wenxi Liu Zan Gao School of Kinesiology University of Minnesota-Twin CitiesMinneapolisMN 55455USA Carlson School of Management University of Minnesota-Twin CitiesMinneapolisMN 55455USA

Background:Public health guidelines have called for innovative and flexible physical activity(PA)intervention strategies to promote PA and health amid the coronavirus disease 2019(COVID-19)***,this study’s purpose was to examine the effects of a home-based,YouTube-delivered PA intervention grounded in self-determination theory on young adults’free-living PA,sedentary behavior,and sleep quality(NCT04499547).Methods:Sixty-four young adults(48 females;age=22.8±3.4 years,mean±SD;body mass index=23.1±2.6 kg/m^(2))were randomized(1:1)into the intervention group,which received weekly aerobic and muscle-strengthening PA videos,or control group,which received weekly general health education videos,for 12 *** primary outcome was free-living moderate-to-vigorous PA(MVPA)and our secondary outcomes were sedentary behavior,light PA,and sleep quality(measured using ActiGraph accelerometers)along with muscle-strengthening PA frequency,self-determination theory-related motivation(non-regulation,external regulation,introjected regulation,identified regulation,integrated regulation,and intrinsic regulation),and perceived PA barriers(assessed using validated questionnaires).Repeated measures analysis of variances(ANOVAs)examined between-group differences at an adjusted significance level of 0.004 and effect sizes as partial eta-squared(η;).Results:We observed statistically significant interaction effects for MVPA,sleep efficiency,muscle-strengthening PA frequency,non-regulation,integrated regulation,intrinsic regulation,and perceived PA barriers(F(1,62)=10.75-77.67,pjected,and identified regulations after 12 weeks(F(1,62)=1.11-3.64,p=0.06-0.61).Conclusion:With national COVID-19 restrictions still in place and uncertainty regarding post-pandemic PA envir

关键词： High-intensity interval training Resistance-training Self-determination theory Social media Video

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Towards maximized utilization of iridium for the acidic oxygen evolution reaction

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Nano Research 2019年第9期12卷 2275-2280页

作者： Marc Ledendecker Simon Geiger Katharina Hengge joohyun Lim Serhiy Cherevko Andrea M. Mingers daniel Gohl Guilherme V. Fortunato daniel jalalpoor Ferdi Schuth Christina Scheu Karl j. j. Mayrhofer Department of Interface Chemistry and Surface Engineering Nanoanalytics and Interfaces Max-Planck-Institut fur Eisenforschung GmbH40237 DusseldorfGermany Department of Heterogeneous Catalysis Max-Planck-Institut fur KohlenforschungKaiser- Wilhelm-Platz 145470 Mulheim an der RuhrGermany Helmholtz-Institute Erlangen-Nurnbergfar Renewable Energy (IEK-11) Forschungszentrum Jillich91058 ErlangenGermany Department of Chemical and Biological Engineering Friedrich-Alexander- Universitat Erlangen -Nurnberg91058 ErlangenGermany Institute of Chemistry Universidade Federal de Mato Grosso do SulAv. Senador Filin to Muller1555Campo GrandeMS 79074-460Brazil

The reduction in noble metal content for efficient oxygen evolution catalysis is a crucial aspect towards the large scale commercialisation of polymer electrolyte membrane *** catalytic stability and activity are inversely related,long service lifetime still demands large amounts of low-abundant and expensive *** this manuscript we elaborate on the concept of maximizing the utilisation of iridium for the oxygen evolution *** combining different tin oxide based support materials with liquid atomic layer deposition of iridium oxide,new possibilities are opened up to grow thin layers of iridium oxide with tuneable noble metal ***-situ,time-and potential-resolved dissolution experiments reveal how the stability of the substrate and the catalyst layer thickness directly affect the activity and stability of deposited iridium *** on our results,we elaborate on strategies how to obtain stable and active catalysts with maximized iridium utilisation for the oxygen evolution reaction and demonstrate how the activity and durability can be tailored *** results highlight the potential of utilizing thin noble metal films with earth abundant *** for future catalytic applications in the energy sector.

关键词： oxygen evolution reaction liquid atomic layer depositi on catalysis iridium core-shell nano particles

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A preliminary study of sperm identification in microdissection testicular sperm extraction samples with deep convolutional neural networks

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Asian journal of Andrology 2021年第2期23卷 135-139页

作者： daniel j Wu Odgerel Badamjav Vikrant V Reddy Michael Eisenberg Barry Behr Department of Computer Science Stanford UniversityStanfordCA 94305USA Department of Urology University of Utah HealthSalt Lake CityUT 84108USA Department of Obstetrics and Gynecology Stanford Children’s HealthStanfordCA 94305USA Department of Urology Stanford University School of MedicineStanfordCA 94305USA

Sperm identification and selection is an essential task when processing human testicular samples for in vitro *** and identifying sperm cell(s)in human testicular biopsy samples is labor intensive and time *** developed a new computer-aided sperm analysis(CASA)system,which utilizes deep learning for near human-level performance on testicular sperm extraction(TESE),trained on a custom *** system automates the identification of sperm in testicular biopsy samples.A dataset of 702 de-identified images from testicular biopsy samples of 30 patients was *** image was normalized and passed through glare filters and diffraction *** data were split 80%,10%,and 10%into training,validation,and test sets,***,a deep object detection network,composed of a feature extraction network and object detection network,was trained on this *** model was benchmarked against embryologists’performance on the detection *** deep learning CASA system achieved a mean average precision(mAP)of 0.741,with an average recall(AR)of 0.376 on our *** proposed method can work in real time;its speed is effectively limited only by the imaging speed of the *** results indicate that deep learning-based technologies can improve the efficiency of finding sperm in testicular biopsy samples.

关键词： artificial intelligence computer vision male infertility microdissection testicular sperm extraction sperm

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Optimal decentralized control of large scale systems

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Control Theory and Technology 2016年第4期14卷 287-313页

作者： Xiao Qi SHI daniel E. DAVISON Raymond KWONG Edward j. DAVISON Systems Control Group Department of Electrical and Computer Engineering University of Toronto Ontario Canada MSS 3G4 Department of Electrical and Computer Engineering University of Waterloo Ontario Canada N2L 3G1

This paper presents a new optimized decentralized controller design method for solving the tracking and disturbance rejection problems for large-scale linear time-invariant systems, using only low-order decentralized controllers. To illustrate the type of results which can be obtained using the new optimized decentralized control design method, the control of a large flexible space structure is studied and compared with the standard centralized LQR-observer controller. The order of the resultant decentralized controller is much smaller than that of the standard centralized LQR-observer controller. The proposed controller also has certain fail-safe properties and, in addition, it can be five orders of magnitude more robust than the standard LQR-observer controller based on their real stability radii. The new decentralized controller design method is applied to a large flexible space structure system with 5 inputs and 5 outputs and of order 24.

关键词： Decentralized control multivariable control PID control robustness optimization large-scale systems flexiblestructures

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Electrodeposited Sulfur and CoxS Electrocatalyst on Buckypaper as High-Performance Cathode for Li-S Batteries

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Nano-Micro Letters 2020年第10期12卷 263-275页

作者： Yi Zhan Andrea Buffa Linghui Yu Zhichuan jXu daniel Mandler School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Institute of Chemistry The Hebrew University of Jerusalem9190401 JerusalemIsrael Campus for Research Excellence and Technological Enterprise(CREATE) Singapore-HUJ Alliance for Research and Enterprise(SHARE)Singapore 138602Singapore

Lithium-sulfur batteries(LSBs)are considered as the next generation of advanced rechargeable batteries because of their high energy *** this study,sulfur and CoxS electrocatalyst are deposited on carbon nanotube buckypaper(S/CoxS/BP)by a facile electrodeposition method and are used as a binder-free high-performance cathode for *** sulfur is deposited on buckypaper by electrooxidation of a polysulfide solution(-S6^2-).This approach substantially increased the current and time efficiency of sulfur electrochemical deposition on conductive material for LSBs.S/CoxS/BP cathode could deliver an initial discharge capacity as high as 1650 mAh g^-1 at 0.1 C,which is close to the theoretical capacity of *** current rate of 0.5 C,the S/CoxS/BP has a capacity of 1420 mAh g^-1 at the first cycle and 715 mAh g^-1 after 500 cycles with a fading rate of 0.099%per *** high capacity of S/CoxS/BP is attributed to both the homogeneous dispersion of nanosized sulfur within BP and the presence of CoxS *** sodium dodecyl sulfate(SDS)pretreatment of BP renders it polarity to bind polysulfides and thus facilitates the good dispersibility of nanosized sulfur within *** catalyst accelerates the kinetics of polysulfide conversion and reduces the presence of polysulfide in the cathode,which suppresses the polysulfide diffusion to anode,i.e.,the shuttle *** mitigation of the active material loss improves not only the capacity but also the cyclability of S/CoxS/BP.

关键词： Electrodeposition Lithium sulfur batteries Buckypaper Electrocatalysts

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Estimation of cotton yield with varied irrigation and nitrogen treatments using aerial multispectral imagery

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International journal of Agricultural and Biological Engineering 2013年第2期6卷 37-41页

作者： Yanbo Huang Ruixiu Sui Steven j.Thomson daniel K.Fisher Crop Production Systems Research Unit Agricultural Research ServiceUnited States Department of AgricultureStonevilleMS 38776USA

Cotton yield varies spatially within a *** variability can be caused by various production inputs such as soil properties,water management,and fertilizer *** multispectral imaging is capable of providing data and information to study effects of the inputs on yield qualitatively and quantitatively in a timely and cost-effective fashion.A 10-ha cotton field with irrigation and non-irrigation 2×2 blocks was used in this *** nitrogen application treatments were randomized with two replications within each *** plant canopy was closed,airborne multispectral images of the field were acquired using a 3-CCD MS4100 *** images were processed to generate various vegetation *** vegetation indices were evaluated for the best performance to characterize *** effect of irrigation on vegetation indices was *** for yield estimation were developed and verified by comparing the estimated and actual *** indicated that ratio of vegetation index(RVI)had a close relationship with yield(R^(2)=0.47).Better yield estimation could be obtained using a model with RVI and soil electrical conductivity(EC)measurements of the field as explanatory variables(R^(2)=0.53).This research demonstrates the capability of aerial multispectral remote sensing in estimating cotton yield variation and considering soil properties and nitrogen.

关键词： remote sensing multispectral imagery cotton yield nitrogen irrigation soil properties

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Leaf morphogenesis:The multifaceted roles of mechanics

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Molecular Plant 2022年第7期15卷 1098-1119页

作者： Kexin Guo Changjin Huang Yansong Miao daniel j.Cosgrove K.jimmy Hsia School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore School of Biological Sciences Nanyang Technological UniversitySingapore 637551Singapore Department of Biology The Pennsylvania State UniversityUniversity ParkPA 16802USA School of Chemical and Biomedical Engineering Nanyang Technological UniversitySingapore 637459Singapore

Plants produce a rich diversity of biological forms,and the diversity of leaves is especially *** of leaf morphogenesis have been studied in the past two decades,with a growing focus on the interactive roles of mechanics in recent *** of plant organs involves feedback by mechanical stress:growth induces stress,and stress affects growth and *** much attention has been given to potential stress-sensing mechanisms and cellular responses,the mechanical principles guiding morphogenesis have not been well *** we synthesize the overarching roles of mechanics and mechanical stress in multilevel and multiple stages of leaf morphogenesis,encompassing leaf primordium initiation,phyllotaxis and venation patterning,and the establishment of complex mature leaf ***,the roles of mechanics at multiscale levels,from subcellular cytoskeletal molecules to single cells to tissues at the organ scale,are *** highlighting the role of mechanical buckling in the formation of three-dimensional leaf shapes,this review integrates the perspectives of mechanics and biology to provide broader insights into the mechanobiology of leaf morphogenesis.

关键词： leaf morphogenesis cell-wall mechanics phyllotaxis and venation patterning differential and anisotropic growth mechanical buckling

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Iron,the endolysosomal system and neuroinflammation:a matter of balance

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Neural Regeneration Research 2022年第5期17卷 1003-1004页

作者： daniel A.Bórquez Pamela j.Urrutia Marco T.Núñez Center for Biomedical Research Faculty of MedicineUniversidad Diego PortalesSantiagoChile Department of Biology Faculty of SciencesUniversidad de ChileSantiagoChile

Iron accumulation and neuroinflammation are cardinal features of many neurodegenerative diseases(Urrutia et al.,2021).However,the hierarchy in the pathogenic mechanisms and the molecular connections between these proc... 详细信息

关键词： Iron system showing

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Application of network meta-analysis in the field of physical activity and health promotion

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journal of Sport and Health Science 2020年第6期9卷 511-520页

作者： Xiwen Su daniel j.McDonough Haitao Chu Minghui Quan Zan Gao School of Kinesiology University of MinnesotaMinneapolisMN 55455USA Division of Biostatistics School of Public HealthUniversity of MinnesotaMinneapolisMN 55455USA School of Kinesiology Shanghai University of SportShanghai 200438China

Continued advancement in the field of physical activity and health promotion relies heavily on the synthesis of rigorous scientific *** such,systematic reviews and meta-analyses of randomized controlled trials have led to a better understanding of which intervention strategies are superior(i.e.,produce the greatest effects)in physical activity-based health behavior change ***,standard meta-analytic approaches have allowed researchers in the field to synthesize relevant experimental evidence using pairwise procedures that produce reliable estimates of the homogeneity,magnitude,and potential biases in the observed ***,pairwise meta-analytic procedures are only capable to discerning differences in effects between a select intervention strategy and a select comparison or control *** order to maximize the impact of physical activity interventions on health-related outcomes,it is necessary to establish evidence concerning the comparative efficacy of all relevant physical activity intervention *** development of network meta-analysis(NMA)-most commonly used in medical-based clinical trials-has allowed for the quantification of indirect comparisons,even in the absence of direct,head-to-head ***,it stands to reason that NMA can be applied in physical activity and health promotion research to identify the best intervention *** that this analysis technique is novel and largely unexplored in the field of physical activity and health promotion,care must be taken in its application to ensure reliable estimates and discernment of the effect sizes among ***,the purpose of this review is to comment on the potential application and importance of NMA in the field of physical activity and health promotion,describe how to properly and effectively apply this technique,and suggest important considerations for its appropriate application in this *** this paper,overviews of the foundations

关键词： Behavior change Kinesiology and health promotion Multiple treatment comparison Pairwise meta-analysis Randomized controlled trials

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