Links between tree species, symbiotic fungal diversity and ecosystem functioning in simplified tropical ecosystems

We studied the relationships among plant and arbuscular mycorrhizal (AM) fungal diversity, and their effects on ecosystem function, in a series of replicate tropical forestry plots in the La Selva Biological Station, Costa Rica. Forestry plots were 12 yr old and were either monocultures of three tree species, or polycultures of the tree species with two additional understory species. Relationships among the AM fungal spore community, host species, plant community diversity and ecosystem phosphorus-use efficiency (PUE) and net primary productivity (NPP) were assessed. Analysis of the relative abundance of AM fungal spores found that host tree species had a significant effect on the AM fungal community, as did host plant community diversity (monocultures vs polycultures). The Shannon diversity index of the AM fungal spore community differed significantly among the three host tree species, but was not significantly different between monoculture and polyculture plots. Over all the plots, significant positive relationships were found between AM fungal diversity and ecosystem NPP, and between AM fungal community evenness and PUE. Relative abundance of two of the dominant AM fungal species also showed significant correlations with NPP and PUE. We conclude that the AM fungal community composition in tropical forests is sensitive to host species, and provide evidence supporting the hypothesis that the diversity of AM fungi in tropical forests and ecosystem NPP covaries.

Pomponii Melae de orbis sitv libri tres, accuratissime emendati, una cum Commentariis Joachimi Vadiani Heluetii castigatioribus, & multis in locis auctioribus factis : id quod candidus lector obiter, & in transcursu facile deprehendet; adiecta sunt praeterea loca aliquot ex Vadiani comentarijs summatim repetita, & obiter explicata : in quibus aestimandis censendisq doctissimo uiro Ioanni Camerti ordinis minorum theologo, cum Joachimo Vadiano non admodum conuenit, rvrsvm, Epistola Vadiani, ab eo penè adulescente ad eo pene adulescente ad Rudolphum Agricolam iuniorem scripta, non indigna lectu, nec inutili ad ea capienda, quae aliubi in Commentarius suis libare magis, quàm longius explicare voluit

A obra De orbis sitv (descrição do mundo), também chamada De chorographia (corografia), foi escrita em três partes, por volta de 43 d.C. Situa a Terra no centro do universo e descreve regiões, costumes e artes da África, Europa e Ásia, sem contudo detalhar suas distâncias e sistemas administrativo. É o único tratado de geografia da Antiguidade escrito em latim clássico. Esta edição traz extensos comentários de Joaquim Vadiano e observações do teólogo João Camerti e de Rodolfo Agrícola.

Philaletha illustratus, sive Introitus apertus ad occlusum regis palatium ... cum nova praefatione qua vita pariter ac scripta, tum edita tum inedita, Aeyrenaei Philalethae breviter exponuntur : accessit his narratio de vita et scriptis Starckii : nec non ... Becheri Pantaleon delarvatus /

Mode of access: Internet.

Veterum poetarum Graecorum poemata; aut, Poematum apospesmatia, selecta, eo consilio hunc in modum congesta, ut juventus jam in scholis non unum, sed plerosque omnes veteres poetas Graecos, quorum quidem scripta supersunt, cognoscere posit, atque ita mature ad legenda eorum ceteraaliciatur,

Bound with the author's Veterulm poetarum Latinorum poemata. Lipsiae, 1675.

Vera historia unionis non veræ inter Græcos et Latinos: sive Concilii florentini exactissima narratio, græcè scripta per Sylvestrum Sguropulum magnum ecclesiarcham, atque unum è quinque crucigeris & intimis consiliariis patriarchæ constantinopolitani, qui concilio interfuit.

Greek and Latin in parallel columns.

Augusti Pfeiferi D. Critica sacra, : de sacri codicis partitione, editionibus variis, lingvis originalibus & illibatâ puritate fontium, interpretatione scripturae legitima, nec non ejusdem : Translatione in lingvas totius universi de Masora & Kabbala, Talmude deniq; & Alcorano. : Accessere, suisq locis inserti, Tractatus qvatuor, I. De antiqvis ritibus Ebraeorum. II. De natura, usu & subsidiis lingvarum orientalium omnium. III. De compendiaria ratione legendi scripta rabbinico-talmudica. IV. De accentuatione tàm prosaica qvàm metrica facilè discenda.

Includes index.

Mechanism of ferromagnetism in non-magnetic ion-doped zinc oxides

Zinc oxide (ZnO) that contains non-magnetic ionic dopants, such as nitrogen (N)-doped zinc oxide (ZnO:N), has been observed to exhibit ferromagnetism. Ferromagnetism is proposed to arise from the Coulomb excitation in the localized states that is induced by the oxygen vacancy, V O. A model based on the Coulomb excitation that is associated with the electron–phonon interaction theoretically explains the ferromagnetic mechanism of ZnO:N. This study reveals that the ferromagnetism will be induced by either deep localized states with a small V O concentration or shallow localized states with a high V O concentration. Additionally, electron–phonon coupling either suppresses the ferromagnetism that is induced by the deep donor states of V O or enhances the ferromagnetism that is induced by the shallow donor states of V O.

On the critical thickness for non-localized to localized plastic flow transition in metallic glasses: A molecular dynamics study

Molecular dynamics simulations were employed to investigate the specimen thickness-dependent tensile behavior of a series of Cu(x)Z(100-x) (x = 20, 40, 50, 64 and 80 at%) metallic glass (MG) films, with a particular focus on the critical thickness, tc, below which non-localized plastic flow takes place. The simulation results reveal that while the transition occurs in all the alloys examined, t(c) is sensitive to the composition. We rationalize t(c) by postulating that the strain energy stored in the sample at the onset of plastic deformation has to be sufficient for the formation of shear bands. The composition-dependence of t(c) was found to correlate with the average activation energy of the atomic level plastic deformation events. (C) 2015 Elsevier Ltd. All rights reserved.

Robust non-Markovianity in ultracold gases

We study the effect of thermal fluctuations on a probe qubit interacting with a Bose–Einstein condensed (BEC) reservoir. The zero-temperature case was studied in our previous work (Haikka et al 2011 Phys. Rev. A 84 031602), where we proposed a method for probing the effects of dimensionality and scattering length of a BEC based on its behavior as an environment. In this paper, we show that the sensitivity of the probe qubit is remarkably robust against thermal noise. We give an intuitive explanation for the thermal resilience, showing that it is due to the unique choice of the probe qubit architecture of our model.

Foundations and applications of non-equilibrium statistical mechanics

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Henrici Mori Cantabrigiensis Opera omnia tum quae Latin[a]è, tum quae Anglic[a]è scripta sunt : nunc vero latinitate donata /

Contiene con portada propia: Enchiridion ethicum, praecipua Moralis Philosophiae rudimenta complectens. Editio tertia. - Epistola H. Mori ad V.C. quae Apologiam complectitur pro Cartesio, quaeque introductionis loco esse poterit ad Universam Philosophiam Cartesianam. Editio quarta. - Enchiridion Metaphysicum sive De rebus incorporeis succinta [et] luculenta dissertatio. - Philosophematum eruditi authoris Difficilium Nugarum de principiis motuum naturalium sive de essentiis mediis et de modo rarefactionis [et] condenationis, examinatio. - Adnotamenta in duas Ingeniosas Dissertationes : alteram, tentamen de gravitatione et non-gravitatione corporum fluidorum ; alteram, Difficiles Nugas, sive observationes circa experimentum torricellianum... . - Trium tabularum cabbalisticarum decem sephirothas sive numerationes exhibentium descriptio... . - Quaestiones et considerationes paucae brevésque in Tractatum primum libri Druschim, sive introductoniem methaphysicam ad Cabbalam Genuiam / authore R. Isaaco Loriensi... . - Visionis Ezechielis sive mercavae expositio, ex prinicpiis philosophiae pythagoricae praecipuisque Theosophiae Judaicae reliquiis concinnata... . - Catechismus cabbalisticus sive mercavaeus : quo, in divinis mysteriis Mercavae Ezechielis explicandis [et] Memoriâ retinendis, decem sphirotharum... - Fundamenta Philosophiae sive Caballae Aeto-paedo-melissaeae... - Philosophiae Teutonicae censura sive Epistola privata ad amicum... - Ad V.C. Epistola altera... - Dialogi divini...