Submillimolar levels of calcium regulates DNA structure at the dinucleotide repeat (TG/AC)n

Submillimolar levels of calcium, similar to the physiological total (bound + free) intranuclear concentration (0.01–1 mM), induced a conformational change within d(TG/AC)n, one of the frequent dinucleotide repeats of the mammalian genome. This change is calcium-specific, because no other tested cation induced it and it was detected as a concentration-dependent transition from B- to a non-B-DNA conformation expanding from 3′ end toward the 5′ of the repeat. Genomic footprinting of various rat brain regions revealed the existence of similar non-B-DNA conformation within a d(TG/AC)28 repeat of the endogenous enkephalin gene only in enkephalin-expressing caudate nucleus and not in the nonexpressing thalamus. Binding assays demonstrated that DNA could bind calcium and can compete with calmodulin for calcium.

Spherical activated carbon as an enhanced support for TiO2/AC photocatalysts

Titanium dioxide nanoparticles prepared in situ by sol–gel method were supported on a spherical activated carbon to prepare TiO2/AC hybrid photocatalysts for the oxidation of gaseous organic compounds. Additionally, a granular activated carbon was studied for comparison purposes. In both types of TiO2/AC composites the effect of different variables (i.e., the thermal treatment conditions used during the preparation of these materials) and the UV-light wavelength used during photocatalytic oxidation were analyzed. The prepared materials were deeply characterized (by gas adsorption, TGA, XRD, SEM and photocatalytic propene oxidation). The obtained results show that the carbon support has an important effect on the properties of the deposited TiO2 and, therefore, on the photocatalytic activity of the resulting TiO2/AC composites. Thus, the hybrid materials prepared over the spherical activated carbon show better results than those prepared over the granular one; a good TiO2 coverage with a high crystallinity of the deposited titanium dioxide, which just needs an air oxidation treatment at low-moderate temperature (350–375 °C) to present high photoactivity, without the need of additional inert atmosphere treatments. Additionally, these materials are more active at 365 nm than at 257.7 nm UV radiation, opening the possibility of using solar light for this application.

New hybrid materials based on the grafting of Pd(II)-amino complexes on the graphitic surface of AC: preparation, structures and catalytic properties

A novel procedure for the preparation of solid Pd(II)-based catalysts consisting of the anchorage of designed Pd(II)-complexes on an activated carbon (AC) surface is reported. Two molecules of the Ar–S–F type (where Ar is a plane-pyrimidine moiety, F a Pd(II)-ligand and S an aliphatic linker) differing in F, were grafted on AC by π–π stacking of the Ar moiety and the graphene planes of the AC, thus favouring the retaining of the metal-complexing ability of F. Adsorption of Pd(II) by the AC/Ar–S–F hybrids occurs via Pd(II)-complexation by F. After deep characterization, the catalytic activities of the AC/Ar–S–F/Pd(II) hybrids on the hydrogenation of 1-octene in methanol as a catalytic test were evaluated. 100% conversion to n-octane at T = 323.1 K and P = 15 bar, was obtained with both catalysts and most of Pd(II) was reduced to Pd(0) nanoparticles, which remained on the AC surface. Reusing the catalysts in three additional cycles reveals that the catalyst bearing the F ligand with a larger Pd-complexing ability showed no loss of activity (100% conversion to n-octane) which is assigned to its larger structural stability. The catalyst with the weaker F ligand underwent a progressive loss of activity (from 100% to 79% in four cycles), due to the constant aggregation of the Pd(0) nanoparticles. Milder conditions, T = 303.1 K and P = 1.5 bar, prevent the aggregation of the Pd(0) nanoparticles in this catalyst allowing the retention of the high catalytic efficiency (100% conversion) in four reaction cycles.

Regnum Persicum Imperium Turcicum in Asia Russorum Provinciae ad Mare Caspium: aliaequae regiones finitimae, item Ponti Euxini, Maris Caspii, ac Sinus Persici novissimae ac fidelissimae delineationes

Reinero et Josua Ottens.

Nova ac verissima Maris Caspii ante hac maximam fere partem nobis incogniti ac regionum adjacentium delineatio: jussu invictissimi principis Petri Alexii fil. magni Russorum imperatoris

immenso labore et maximis sumptibus facta, atque ex autographo in lucem edita per Reinerum Ottens geographum Amstelaedam ; Iacob Keyser sculp.

Missa sacratissimi rosarii Beatissimae Virginis Mariae : priuilegiata a domino nostro Papa Paulo III. et Gregorio Decimotertio : cum missis de S. Angelo Custode, de S. Gregorio papa conf. & Ecclesiae doctore, de Sancto Carolo episcopo, ac de Sanctis Quindecim Auxiliatoribus.

Woodcut Giunta lily and small ill. on t.p. Initials. Printed in red and black throughout.

Alberti Dvreri pictoris et architecti praestantissimi De vrbibvs, arcibvs, castellisque condendis, ac muniendis rationes aliquot : praesenti bellorum necessitati accommodatissimae : nunc recens è lingua Germanica in Latinam traductae.

Signatures (irregular, due to integration of text and double-page ill.): a⁶ b⁴ c⁶ d⁴ e⁶ f⁶ g⁴ h⁶ ("c5" and "f5" are the stubs [uncut] of c2 and f2).

Geoponika = De re rustica : selectorum libri XX : graeci, Constantino quidem Caesari nuncupati, ac iam non libris, sed thesauris annumerandi /

"Compilación anónima sobre agricultura realizada a partir de diferentes fuentes, principalmente de escritos de Cassianus Bassus (s. 5-6); la compilación se realizó a petición del Emperador Constantino VII Porphyrogenitus y por eso a veces, erroneamente, le es atribuida así como también a Cassianus Bassus. Cf. NUC, Pre-1956 Imprints": traducido de COPAC.

De Chaucorum nomine sedibusque ac rebus gestis [text] : dissertatio inauguralis historica quam consensu et auctoritate amplissimi philosophorum ordinis in alma litterarum universitate Friderica Guilelma ad summos in philosophia honores rite capessendos die XXX. m. Januarii a. MDCCCLII h.l.q.s. publice defendet /

Dedicated to Leopold von Ranke.

Codex diplomaticus Hungariae ecclesiasticus ac civilis /

The second part of v. 11 has special title page only: Genus, incunabula et virtus. Joannis Corvini de Hunyad, regni Hungariae gubernatoris, argumentis criticis illustrata.

Y ffordd i gaffael cyfoeth; neu, Rhisiat druan: yn ddiwygiedig gan Doctor Franklin ... gydag ychwanegiad, Y modd i wneuthur llawer o ychydig, gan B. Short. Ac a gyfieithiwyd idd y gymraeg gan Thomas Roberts, Llwynrhudol.

Signed: Richard Saunders.

Ystyriaethau o gyflwr dyn, yn y bywyd hwn, ac yn yr hwn sy i ddyfod.

Translation of: Contemplations of the state of man in this life, and in that which is to come.

Carmina Homerica, Ilias et Odyssea : a rhapsodorum interpolationibus repurgata, et in pristinam formam, quatenus recuperanda esset, tam e veterum monumentorum fide et auctoritate, quam ex antiqui sermonis indole ac ratione, redacta /

"In 1808 he [Knight] printed privately fifty copies (London, 8vo) of his 'Carmina Homerica, Ilias et Odyssea'. This consists of Prolegomena, the text being added in the later edition of 1820. 8vo. His object was to restore the text to its supposed original condition, and he introduced the digamma and various early forms."--Dict. nat. biog., v. 31, p. 259.

Volvmen statvtorvm, legvm, ac ivrivm D. Venetorvm, cvm amplissimo indice omnivm materiarvm, qvae in ipsis statvtis continentvr alphabetico ordine accommodato. Additis correctionibvs in creatione serenissimorum principum Barbadici, Lauredani, Crimani, Gritti, Triuisani, Venerij, ac incliti D. Laurentij Priolo: Cvm sva pratica ivdiciali necessaria, ac multis legibus ad curias pallatii pertinentibus.

[Colophon: Venetiis, apud Cominum de Tridno Montisferrati, Anno 1563.]

Bullarum, privilegiorum ac diplomatum romanorum pontificum amplissima collectio,

Vols. 1-6 (6 v. in 20) are an enlarged ed. of Cherubini's Bullarium; vols. 7-14 (with notes by A.F. de Sanctis) are a supplement to Cherubini.