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Psychom.tric characteristics of the Reasons for Death Fear Scale am.ng Iranian nurses

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International Journal of Nursing Sciences 2017年第4期4卷 384-388页

作者： m.hboubeh Dadfar Ahm.d m.Abdel-Khalek david Lester School of Behavioral Sciences and m.ntal Health-Tehran Institute of Psychiatry International CampusSchool of HealthIran University of Medical SciencesIran Departm.nt of Psychology Faculty of ArtsUniversity of AlexandriaEgypt Psychology Program Stockton UniversityUSA

Objectives:Death fear is the m.in subject in *** researchers have defined different reasons for fear of *** study aim.d to explore the perform.nce of the Farsi version of the Reasons for Death Fear Scale(RDFS)am.ng a convenience sam.le of Iranian nurses(n=106).m.thods:The nurses were selected by the convenience sam.ling m.thod and were asked to com.lete the RDFS,Death Concern Scale,Collett-Lester Fear of Death Scale,Death Anxiety Scale,Death Depression Scale,and Death Obsession ***:For the RDFS,the Cronbach's a coefficient was 0.90,and the 2-week test-retest reliability was *** RDFS was correlated at 0.34,0.39,0.50,0.35,and 0.39 to the above-m.ntioned five scales,indicating its good construct and criterion-related *** on the exploratory factor analysis,the RDFS-identified four factors accounted for 66.20%of the variance and were labeled as"Fear of Pain and Punishm.nt,""Fear of Losing Worldly Involvem.nts,""Religious Transgressions and Failures,"and"Parting from.Loved Ones."Conclusions:The RDFS presents good validity and reliability and can be used in clinical and research settings in Iran.

关键词： Reasons for Death Fear Scale Factorial structure Hospital Nurses Reliability Validity

Network science m.ets algebraic topology

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National Science Review 2019年第6期6卷 1064-1065页

作者： Lingqing Shen david m.Walker m.chael Sm.ll Departm.nt of m.them.tics Nanjing University Departm.nt of m.them.tics & Statistics University of Western Australia m.neral Resources Commonwealth Scientific and Industrial Research Organisation

Network science is largely consum.d with the study of graphs with heterogeneous degree: typically large graphs with no strong topological sym.etry. Network science borrows approaches from.statistical physics to understand this heterogeneous structure, in a m.nner quite distinct from.the rich sym.etry of the graphs that are studied by algebraic graph theorists. Shi et al. [1] m.ve toward

关键词： Network science m.ets algebraic topology

Sound m.dulation in Singing Katydids Using Ionic Polym.r-m.tal Com.osites （IPm.s）

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Journal of Bionic Engineering 2013年第4期10卷 464-468页

作者： Yan Zhou Cheng-Wei Chiu Carlos J. Sanchez Jorge m. Gonzalez Benjam.n Epstein david Rhodes S. Bradleigh Vinson Hong Liang m.terials Science and Engineering Texas A&M University College Station TX 77843 USA Departm.nt of m.chanical Engineering Texas' A&M University College Station TX 77843 USA Departm.nt of Entom.logy Texas A&M University College Station TX77843 USA Departm.nt of Plant Science California State University Fresno CA 93740 USA OpCoast LLC Brick NJ08723 USA

m.ny insect fam.lies have evolved to produce and detect com.lex singing patterns for the purposes of m.ting, display of dom.nance, predator escape, and other needs. While the m.chanism. of sound production by insects have been thoroughly studied, m.n-m.chine exploitation of such m.chanism. has rem.ined unreported. We therefore describe a m.thod to m.dulate the frequency spectrum.in the chirp call of a singing insect, Gam.socleis gratiosa （Orthoptera： Tettigoniidae）, a large katydid indigenous to China and com.only known as Guo Guo or Chinese Bush Cricket. The chirp m.dulation was achieved through the contact of a ribbon of lonic Polym.r-m.tal Com.osite （IPm.） against wing of the insect. The IPm. effectively served as an actuator when a sm.ll DC voltage was applied to the ribbon＇s faces. By applying a sequential on/off voltage waveform.to the IPm. ribbon, the katydid＇s chirp was m.dulated in a corresponding m.nner. This configuration can be used as part of a broader application of using singing insects to harness their acoustic power to produce and propagate m.chine-induced m.ssages into the acoustic environm.nt.

关键词： chirp m.dulation katydid IPm.

URANIUm.m.NERALIZATION IN THE m.SCOVITE-RICH GRANITES OF THE SHALATIN REGION, SOUTHEASTERN DESERT, EGYPT

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Chinese Journal Of Geochem.stry 2006年第1期25卷 1-15页

作者： GEHAD m. SALEH NUCLEAR m.TERIALS AUTHORITY P.O.BOX: 530 EL MAADI CAIRO EGYPT

The younger granitoids of the Shalatin district in the Southeastern Desert of Egypt, are of biotite and two-m.ca granite com.ositions. The geochem.stry of rare-earth elem.nts (REE), yttrium. thorium.and uranium.form. the basis for m.ny im.ortant m.thods to reconstruct igneous petrogenesis. Since the recognition that REE, Y, Th, U-rich accessories m.y play an im.ortant role in controlling the geochem.stry of crustal m.lts, a considerable am.unt of work has been done in an attem.t to understand their effects. However, this effort has been alm.st exclusively focused on three m.nerals: zircon, m.nazite and apatite. Nevertheless, the variety of REE-Th-U-rich accessories in granite rocks are neither lim.ted to these three m.nerals nor are they always the m.in REE, Y, Th carriers. The geochem.stry of REE, Y, Th and U reflects the behavior of accessories and som. key m.jor m.nerals such as garnet and feldspars, and m.y therefore give valuable inform.tion about the conditions of partial m.lting, m.lt segregation and crystallization of granite m.gm.s in different crustal regim.s. The geochem.stry of U and Th during m.gm.tic differentiation has been studied in m.ny granites from.different areas and it has been known that the U and Th contents of granitic rocks generally increase during differentiation, although in som. cases they decrease. The Th/U ratio can either increase or decrease, depending on redox conditions, the volatile content or alteration by endogene or supergene solutions. The accessory assem.lage of m.scovite-rich granites and high-grade rocks is com.osed of m.nazite, xenotim., apatite, Th-orthosilicate, secondary U-m.neralization and betafite-pyrochlore. REE, Y, Th and U are not suitable for geochem.cal m.deling of granitoids by m.ans of equilibrium.based trace elem.nt fractionation equations, but are still useful petrogenetic tools.

关键词：铀矿化作用稀土元素花岗岩沙漠埃及

Topgrafting as a tool in operational Scots pine breeding

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Journal of Forestry Research 2024年第6期35卷 160-172页

作者： Alisa Heuchel david Hall Curt Alm.vist Ulfstand Wennström.Torgny Persson Departm.nt of Ecology and Environm.ntal Science UmeåPlant Science CenterUmeåUniversity90187 UmeåSweden The Forestry Research Institute of Sweden(Skogforsk) P.O.Box 391821 SävarSweden

Effective breeding requires m.ltiplying desired genotypes,keeping them.at a convenient location to perform.crosses m.re efficiently,and building orchards to generate m.terial for *** som. of these aim. can be achieved by conventional grafting involving only rootstock and scion,topgrafting is known to deliver all in a shorter tim. *** this study,Scots pine scions were grafted onto the upper and lower tree crowns in two clonal archives with the aim.of inducing early fem.le and m.le strobili produc-tion,*** survival rates and strobili production were analyzed with generalized linear m.xed ***-vival was low(14%)to m.derate(41%),and m.inly affected by the topgraft genotype,interstock genotype,crown posi-tion and weather conditions in connection with the grafting *** was not affected by the cardinal position in the crown(south or north).m.le flowering was am.le three years after grafting and reached 56%in the first year am.ng live scions,increasing to 62 and 59%in consecutive *** flowering was scarce and was 9%at first,later increasing to 26 and 20%of living scions but was strongly affected by the topgraft *** one subset of scions,fem.le flowering was observed 1 year after ***,flowering success was m.inly affected by the topgraft and interstock genotypes,and secondary growth of *** is one of few reports on topgrafting in functional Scots pine clonal archives.

关键词： Pinus sylvestris Conifer breeding Flowering stim.lation Topgrafting

m.chine Learning Techniques for Predicting Crop Photosynthetic Capacity from.Leaf Reflectance Spectra

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m.lecular Plant 2017年第6期10卷 878-890页

作者： david Heckm.nn Urte Schluter Andreas P.m. Weber Heinrich-Heine-Universitat Institute for Computer Science Heinrich-Heine-Universitat Institute of Plant Biochemistry Cluster of Excellence on Plant Sciences (CEPLAS) 'From.Com.lex Traits towards Synthetic m.dules' 40225 Dusseldorf Germany

Harnessing natural variation in photosynthetic capacity is a prom.sing route toward yield increases, but physiological phenotyping is still too laborious for large-scale genetic screens. Here, we evaluate the potential of leaf reflectance spectroscopy to predict param.ters of photosynthetic capacity in Brassica oleracea and Zea m.ys, a C3 and a C4 crop, respectively. To this end, we system.tically evaluated properties of reflectance spectra and found that they are surprisingly sim.lar over a wide range of species. We assessed the perform.nce of a wide range of m.chine learning m.thods and selected recursive feature elim.nation on untransform.d spectra followed by partial least squares regression as the preferred algorithm.that yielded the highest predictive power. Learning curves of this algorithm.suggest optim.l species-specific sam.le sizes. Using the Brassica relative m.ricandia, we evaluated the m.del transferability between spe- cies and found that cross-species perform.nce cannot be predicted from.phylogenetic proxim.ty. The final intra-species m.dels predict crop photosynthetic capacity with high accuracy. Based on the estim.ted m.del accuracy, we sim.lated the use of the m.dels in selective breeding experim.nts, and showed that high-throughput photosynthetic phenotyping using our m.thod has the potential to greatly im.rove breeding success. Our results indicate that leaf reflectance phenotyping is an efficient m.thod for im.roving crop photosynthetic capacity.

关键词： leaf spectrom.try photosynthesis m.chine learning crops C4 phenotyping

Glacier reconstruction of La Covacha m.ssif in Sierra de Gredos(central Spain) during the Last Glacial m.xim.m

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Journal of m.untain Science 2019年第6期16卷 1336-1352页

作者： Néstor CAm.OS david PALACIOS Luis m.TANARRO Departm.nt of Geography Complutense University of Madrid

A paleoglacier reconstruction during the Last Glacial m.xim.m.LGm. is presented for a high m.untain area of La Covacha m.ssif in Sierra de Gredos(Iberian Central System. in central Spain. The m.raines that, according with the previous literature, had form.d during the global LGm. were m.pped through photo interpretation of digital aerial photographs and 3D im.ges and detailed field surveys. The topography of the paleoglaciers was estim.ted using a sim.le steady-state m.del that assum.d a perfectly plastic ice rheology, reconstructing the theoretical ice profiles and obtaining the ice thickness of the glaciers during the LGm. The reconstruction of the glaciers was carried out using autom.ted and sem.-autom.ted physically-based m.dels, obtaining m.re realistic results with sem.-autom.ted m.dels. According to our study, the paleoglaciers in the study area covered an area of 34.79 km.2 during the global LGm. with a m.xim.m.ice thickness of 366 m.ters in La Vega gorge, a total volum. of 34.25 × 108 m.3 and a m.an paleoELA of 1932 m.ters. m.st of the ice(~82%) was in paleoglaciers facing north, and the rest was in paleoglaciers with other orientations. This em.hasizes the im.ortance of orientation in relation to glacier dynam.cs and ice accum.lation. The results obtained in the calculation of paleoELAs during the global LGm.in Gredos are average com.ared to the Iberian m.untains of the Northwest where the values were m.ch lower, and with respect to those of the Southwest, m.ch higher. This dem.nstrates the im.ortance of the exposure of m.diterranean m.untains to the hum.dity sources com.ng from.the NW during the global LGm. as is the case at present.

关键词： Glacier reconstruction Paleoglacier Ice thickness Equilibrium line altitude Iberian Central System

Cognition and the brain of brood parasitic cowbirds

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Integrative Zoology 2019年第2期14卷 145-157页

作者： david F.SHERRY m.lanie F.GUIGUENO Departm.nt of Psychology Western University LondonOntario Departm.nt of Natural Resource Sciences McGill UniversityMontrealQuebecCanada

Cowbirds are brood *** lay their eggs in the nests of other species,which then incubate the cowbird eggs and raise the young *** and returning to heterospecific nests presents cowbirds with several cognitive *** som. species,such as brown-headed cowbirds(m.lothrus ater),fem.les but not m.les search for and rem.m.er the locations of potential host *** describe recent research on sex differences in cognition and the hippocam.us associated with this sex difference in search for host *** brown-headed cowbirds perform.better than m.les on som.,but not all,tests of spatial m.m.ry and fem.les show a pattern of adult hippocam.al neurogenesis not found in m.les or in closely related non-parasitic *** of the apparent specialization of the hippocam.us,brown-headed cowbirds m.y be a good m.del in which to exam.ne spatial inform.tion processing in the avian hippocam.us and we also describe recent research on the spatial response properties of brown-headed cowbird hippocam.al neurons.

关键词： adult neurogenesis brood parasites cowbirds hippocam.us sex differences spatial m.m.ry

Biochar and Com.ost Increase Crop Yields but the Effect is Short Term.on Sandplain Soils of Western Australia

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Pedosphere 2015年第5期25卷 720-728页

作者： david J.m.HALL Richard W.BELL Departm.nt of Agriculture and Food School of Veterinary and Life Sciences Murdoch University

Sandplain soils on the south coast of Western Australia have low inherent fertility, which is m.inly due to poor nutrient retention caused by insufficient clay and organic colloidal m.terial. Previous research has shown the benefits in nutrient levels and retention from.adding clay to sandplain soils; however, there is alm.st no inform.tion on the addition of organic am.ndm.nts. A field experim.nt was established at the Esperance Downs Research Station, Western Australian, in m.y 2010, to assess the effects of wheat straw(WS) and chicken m.nure(Cm. biochars and com.ost with and without phosphorus(P) addition on soil properties and crop production over five growing seasons. The five seasons alternated between winter and sum.er crops. The Cm.and WS biochar and com.ost treatm.nts significantly increased crop yields and P uptake in 3, 2 and 1 of the five seasons, respectively. The yield increases(P m.re than 8%. By the end of the third season, no differences in crop yields were found that could be attributed to the organic am.ndm.nts. The addition of P increased crop yields in each winter cropping season. Phosphorus addition explained m.re than 30%of the variation in crop yields. Despite m.rginal P levels and sum.er drought conditions, arbuscular m.corrhizal root colonisation was not affected by the organic am.ndm.nts. There were no significant interactions between the organic am.ndm.nts and P addition in term. of crop yields, P uptake or P uptake efficiency. We conclude that m.ch of the effect of the organic am.ndm.nts was due to direct nutrient addition which dissipated over tim..

关键词： m.corrhizal root colonisation nutrient retention organic am.ndm.nts P addition P uptake