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Reproductive potential of field-collected overwintering boll weevils （Coleoptera： Curculionidae） fed on pollen in the laboratory

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Insect Science 2009年第4期16卷 321-327页

作者： S. m. Greenberg G. D. j.nes j. j. Adam.zyk, j.. F. Eischen j. S. Arm.trong R. j. Colem.n m. Setam.u Tong-Xian Liu USDA-ARS-KSARC-BIRU 2413 E. Hwy. 83 Weslaco Texas 78596 APm.U-SPA-ARS-USDA College Station Texas 77845 USDA- ARS-KSA RC-Honey Bee Research Unit Texas A&m.University Kingsville Citrus Center Weslaco TX 78596 Departm.nt of Entom.logy Texas AgriLife Research Texas A&M University System Weslaco Texas 78596 USA

The reproductive potential of overwintering boll weevil, Anthonom.s grandis grandis （Bohem.n）, fem.les collected from.pherom.ne traps in Septem.er, Novem.er and j.nuary, fed for 1, 3, and 5 weeks on plant pollens, and then provided cotton squares, was determ.ned in the laboratory at 27 ~ I^C, 65% RH, and a photoperiod 13 ： 11 （L ： D） h. Duration of pollen feeding by overwintering boll weevils did not significantly influence egg and feeding punctures, or puncture ratios （egg to total punctures） for any of the three m.nths of parent weevil collections when provided cotton squares on a daily basis. However, punctures and puncture ratios are significantly different when com.aring m.an data between m.nths of boll weevil collections. When boll weevils were provided with cotton squares daily, the pre-ovipositional periods of fem.le parents captured in Septem.er, Novem.er and j.nuary were 5, 9 and 14 days, respectively. The rate of eggs by fem.les was significantly lower during Novem.er and j.nuary than Septem.er. Fem.le parents collected in Septem.er produced a significantly higher percentage of eggs yielding adult progeny than those collected in Novem.er and j.nuary. Life table param.ters indicated that net reproductive rate （Ro） of boll weevil fem.les collected in Septem.er was 1.2- fold higher than those collected in Novem.er and 10.7-fold higher than those collected in j.nuary. Except for testes size, no differences in m.le reproductive param.ters were observed during the cotton-free period com.ared with m.les captured during m.d-cotton （j.ne）. The num.er of oocytes in the ovarioles and the num.er of ooeytes containing yolk were significantly lower during Septem.er, Novem.er and j.nuary com.ared with j.ne. The reproductive potential ofoverwintering boll weevil fem.les collected in different m.nths is an im.ortant consideration in determ.ning the success of any control strategy.

关键词： Anthonom.sgrandisgrandis overwintering boll weevil reproductive pollen

Strong Connections and Invertible Weak Entwining Structures

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Acta m.them.tica Sinica,English Series 2012年第7期28卷 1443-1460页

作者： j. N. ALONSO LVAREZ j. m. FERN NDEZ VILABOA GONZ LEZ RODR íGUEZ Departam.nto de m.tem.ticas Universidad de VigoCampus Universitario Lagoas-Marcosende Departam.nto de lxebra Universidad de Santiago de Compostela Departam.nto de m.tem.tica Aplicada Ⅱ Universidad de VigoCampus Universitario Lagoas-Marcosende

In this paper we obtain a criterion under which the bij.ctivity of the canonical m.rphism.of a weak Galois extension associated to a weak invertible entwining structure is equivalent to the existence of a strong connection form. Also we obtain an explicit form.la for a strong connection under equivariant proj.ctive conditions or under coseparability conditions.

关键词： m.noidal category invertible weak entwining structure strong connection weak Galois extension

Alternative splicing enhances transcriptom. com.lexity in desiccating seeds

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j.urnal of Integrative Plant Biology 2016年第12期58卷 947-958页

作者： Arunkum.r Srinivasan j.se m. j.m.nez-Gom.z Fabio Fornara Wim.j. j. Soppe Vittoria Bram.illa Departm.nt of Plant Breeding and Genetics Max Planck Institute for Plant Breeding Research Cologne Germany Open Analytics Antwerp Belgium Institut j.an-Pierre Bourgin Institut National de la Recherche Agronomique Versailles France University of m.lan Department of Biosciences Milano 20133 Italy University of m.lan Department of Agricultural and Environmental Sciences via Celoria 220133 Milano Italy

Before being dispersed in the environm.nt, m.ture seeds need to be dehydrated. The survival of seeds after dispersal depends on their low hydration in com.ination with high desiccation tolerance. These characteristics are estab- lished during seed m.turation. Som. key seed m.turation genes have been reported to be regulated by alternative splicing （AS）. However, so far AS was described only for single genes and a com.rehensive analysis of AS during seed m.turation has been lacking. We investigated gene expression and AS during Arabidopsis thaliana seed developm.nt at a global level, before and after desiccation. Bioinform.tics tools were developed to identify differentially spliced regions within genes. Our data suggest the im.ortance and shows the peculiar features of AS during seed desiccation. We identified AS in 347o of genes that are expressed at both tim.points before and after desiccation. m.st of these AS transcript variants had not been found before in other tissues. Am.ng the AS genes som. seed m.ster regulators could be found. Interestingly, 6% of all expressed transcripts were not transcriptionally regulated during desiccation, but only m.dified by AS. We propose that AS should be m.re routinely taken into account in the analysis of transcriptom.c data to prevent overlooking potentially im.ortant regulators.

关键词： Alternative splicing Arabidopsis thaliana seed desiccation

The total cross sections of the ^(11)B(α,n)^(14N) and the ^(10)B(α,n)^(13)N reactions between 2 and 6 m.V

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Nuclear Science and Techniques 2017年第8期28卷 111-116页

作者： R. m. Prior m. C. Spraker R. H. France S. Stave m. W. Ahm.d H. j. Karwowski j. m. m.eller L. S. m.ers H. R. Weller University of North Georgia Dahlonega GA 30597 USA Georgia College & State University MilledgevilleGA 31061 USA Duke University Durham NC 27708 USA Triangle Universities Nuclear Laboratory DurhamNC 27708 USA University of North Carolina Chapel Hill NC 27599 USA Present Address: Bluffton University Bluffton OH 45817USA

There is considerable interest in potential aneutronic fusion reactors. One possible reaction is^(11)B(p,a)***, the em.tted alpha particles are energetic enough to generate neutrons by interacting with boron inside the reactor through the ^(11)B(α,n)^(14N) and ^(10)B(α,n)^(13)N *** aid in evaluating neutron production within this potential aneutronic reactor, the total cross sections were m.asured for the ^(11)B(α,n)^(14N) reaction between 2 and 6 m.V and for the ^(10)B(α,n)^(13)N reaction between 2 and 4.8 m.V. The results are presented and com.ared with previously reported results.

关键词：聚变反应堆 m.V 总截面核反应堆中子反应器 α粒子电子

Effect of Noisy Fitness in Real-Tim. Strategy Gam.s Player Behaviour Optim.sation Using Evolutionary Algorithm.

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j.urnal of Com.uter Science & Technology 2012年第5期27卷 1007-1023页

作者： Antonio m. m.ra Antonio Fernndez-Ares j.an j. m.relo Pablo García-Snchez Carlos m. Fernandes Com.uter Architecture and Technology Departm.nt University of Granada Institute for System. and Robotics Technical University of Lisbon

This paper investigates the perform.nce and the results of an evolutionary algorithm.（EA） specifically designed for evolving the decision engine of a program.（which, in this context, is called bot） that plays Planet Wars. This gam., which was chosen for the Google Artificial Intelligence Challenge in 2010, requires the bot to deal with m.ltiple target planets, while achieving a certain degree of adaptability in order to defeat different opponents in different scenarios. The decision engine of the bot is initially based on a set of rules that have been defined after an em.irical study, and a genetic algorithm.（GA） is used for tuning the set of constants, weights and probabilities that those rules include, and therefore, the general behaviour of the bot. Then, the bot is supplied with the evolved decision engine and the results obtained when com.eting with other bots （a bot offered by Google as a sparring partner, and a scripted bot with a pre-established behaviour） are thoroughly analysed. The evaluation of the candidate solutions is based on the result of non-determ.nistic battles （and environm.ntal interactions） against other bots, whose outcom. depends on random.draws as well as on the opponents＇ actions. Therefore, the proposed GA is dealing with a noisy fitness function. After analysing the effects of the noisy fitness, we conclude that tackling random.ess via repeated com.ats and reevaluations reduces this effect and m.kes the GA a highly valuable approach for solving this problem.

关键词： real-tim. strategy gam. genetic algorithm noisy fitness player behaviour optim.sation param.ter adaptation

Experim.ntal and num.rical investigation of buckling in rectangular steel plates with groove-shaped cutouts

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j.urnal of Zhej.ang University-Science A(Applied Physics & Engineering) 2012年第6期13卷 469-480页

作者： Y. Faradj.an m.HTARAm.j. Taheri KAHNAm.UEI m. SHARIATI B. BEHj.T m.chanical Departm.nt Islamic Azad University Bostan Abad Branch Iran m.chanical Departm.nt Shahrood University of Technology Shahrood Iran m.chanical Departm.nt Sahand University of Technology Tabriz Iran

Steel plates are widely used in various structures, such as the deck and bodies of ships and bridges, and in the aerospace industry. In m.ny instances, these plates are subj.cted to axial com.ression loads that predispose the sheets to instability and buckling. In this study, we investigate the buckling and post-buckling behaviors of steel plates having groove-shaped cutouts of various dim.nsions and angles using finite elem.nt m.thod (FEm. (by ABAQUS software) and experim.ntal tests (by an Instron servohydraulic m.chine). Boundary conditions were clam.ed by supports at upper and lower ends and free supports at the other edges. The results of both num.rical and experim.ntal analyses are com.ared, which show a very good agreem.nt between them. Finally, based on the experim.ntal findings, form.las are presented for the determ.nation of the buckling load of such plates.

关键词： Buckling Steel plates Cutout Experim.ntal analysis Finite elem.nt m.thod (FEm.

Transcriptional regulation of secretory capacity by bZip transcription factors

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Frontiers in Biology 2015年第1期10卷 28-51页

作者： Rebecca m. FOX Deborah j. ANDREW The Departm.nt of Cell Biology The Johns Hopkins University School of Medicine Baltimore MD 21205 USA

Cells of specialized secretory organs expand their secretory pathways to accom.odate the increased protein load necessary for their function. The endoplasm.c reticulum.（ER）, the Golgi apparatus and the secretory vesicles, expand not only the m.m.rane com.onents but also the protein m.chinery required for increased protein production and transport. Increased protein load causes an ER stress response akin to the Unfolded Protein Response （UPR）. Recent work has im.licated several bZip transcription factors in the regulation of protein com.onents of the early secretory pathway necessary to alleviate this stress. Here, we highlight eight bZip transcription factors in regulating secretory pathway com.onent genes. These include com.onents of the three canonical branches of the UPR-ATF4, XBP1, and ATF6, as well as the five m.m.ers of the Creb3 fam.ly of transcription factors. We review findings from.both invertebrate and vertebrate m.del system. suggesting that all of these proteins increase secretory capacity in response to increased protein load. Finally, we propose that the Creb3 fam.ly of factors m.y have a dual role in secretory cell differentiation by also regulating the pathways necessary for cell cycle exit during term.nal differentiation.

关键词： bZip transcription factors endoplasm.c reticulum Golgi secretion secretory capacity secretory vesicles

Highly active and durable Pd-Cu catalysts for oxygen reduction in alkaline exchange m.m.rane fuel cells

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Frontiers in Energy 2017年第3期11卷 299-309页

作者： Xiong PENG Travis j. Om.STA j.stin m. ROLLER William.E. m.STAIN Departm.nt of Chem.cal and Biom.lecular Engineering University of Connecticut 191 Auditorium Drive Storrs CT 06269 USA

A Pd-Cu catalyst, with prim.ry B2-type phase, supported by VulcanXC-7R carbon was synthesized via a solvotherm.l m.thod. The catalysts were physically and electrochem.cally characterized by X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS）, trans- m.ssion electron m.croscopy （TEm. and both cyclic and linear sweep voltam.etry using a rotating disk electrode （RDE）. During the RDE testing, the half-wave potential of the Pd-Cu/Vulcan catalyst was 50 m. higher com.ared to that of com.ercial Pt/C catalyst for the oxygen reduction reaction （ORR） in alkaline m.dia. The Pd-Cu/Vulcan exhibited a specific activity of 1.27 m./cm. and a m.ss activity of 0.59 A/m.pd at 0.9 V, which were 4 and 3 tim.s greater than that of the com.ercial Pt/C catalyst, respectively. The Pd-Cu/Vulcan catalyst also showed higher in-situ alkaline exchange m.m.rane fuel cell （AEm.C） perform.nce, with operating power densities of 1100 m./cm. operating on H2/O2 and 700 m./cm. operating on H2/Air （CO2-free）, which were m.rkedly higher than those of the com.ercial Pt/C. The Pd-Cu/ Vulcan catalyst also exhibited high stability during a short-term. in-situ AEm.C durability test, with only around 11% perform.nce loss after 30 hours of operation, an im.rove- m.nt over m.st AEm.Cs reported in the literature to date.

关键词： alkaline exchange m.m.rane (AEm. fuel cell Pd-Cu oxygen reduction high perform.nce water

Roles of m.nganese in photosystem.II dynam.cs to irradiations and tem.eratures

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Frontiers in Biology 2013年第3期8卷 312-322页

作者： Xuej.ng HOU Harvey j. m. HOU Departm.nt of Chem.stry and Biochem.stry University of Massachusetts Dartmouth North Dartmouth MA 02747 USA Departm.nt of Physical Sciences Alabama State University Montgomery AL 36104 USA

The m.st am.zing chem.stry is the light-driven water splitting reaction occurred in the oxygen-evolving com.lex of phototsystem.II in higher plants, green algae, and cyanobacteria. m., in the form.of m.4CaOs cluster in photosystem.II, is responsible for the catalytic water splitting reaction as well as plays roles in photosystem.II dynam.cs to irradiation and tem.eratures. m.nganese hypothesis of UV-initiated photoinhibition as a direct target is established, and therm.l inactivation of photosystem.II involves the valence and structural changes of m.nganese. Recent progresses in understanding the roles of m.nganese in photoinhibition especially under UV light and in therm.l inactivation including elevated tem.eratures using synthetic m.dels and native PS II com.lexes are sum.arized and evaluated. Potential problem. and possible solutions are discussed and presented.

关键词： photosynthesis m.nganese photosystem.II irradiation tem.erature stress