In the eighteenth century a large scale emigration of the most enterprising strata of mainly mercantile Greeks from their homelands in Asia Minor, Greece and the Balkans’ area, then under Ottoman rule, resulted in the creation of Greek merchant communities in the most important commercial and financial centers of the Mediterranean and Western Europe.

Even though the languages that are spoken and written in the territories crossed by commercial and cultural routes between Asia and Europe - the “Silk Roads” - have been the object of research for many decades, the popular notion of “languages along the Silk Road” is of fairly recent origin. It is worth giving some thought to the problem of whether, or to what extent, it is actually possible and practical to continue with linguistic research in the context of the “Silk Roads.”

The real, thought of as human reality, that is, a mixture of the imaginary, mythology, emotions, flesh, passions, suffering, love, is always surprising, full of possibilities and hard to grasp. A thinking adapted to the complex reality of our earthly homeland cannot be a trivial realism content with the established order and accepting the victory of the victorious. On the contrary, understanding of reality, lucidity are often the result of an ethical revolt against the fait accompli, against certainty. The thinking suggested by Morin attempts to move beyond the alternatives between, on the one hand, the worst option: the utopia that thinks it is realistic, and on the other the utopia that knows it is utopia, and is therefore harmless, outside the real. The hope is to introduce the poetry of intensity into reality, to resist the oppressive forces of pseudo-realism by cultivating the garden of our earthly homeland.

During the last ten years I have been working on the process of conversion to Protestantism of the indigenous people in Chimborazo province, Ecuador. Protestant evangelization in Ecuador started in the early twentieth century, but it is only in the last thirty years that the process of conversion of the indigenous people has become a large-scale one. During the first sixty years of evangelical activity North American missionaries from the Evangelical Missionary Union baptized only four natives in Chimborazo province. This period was marked by strenuous resistance and rejection of the new religion. Accounts given by missionaries of the period describe the disasters and difficulties that the first evangelizing mission suffered. It was only the conviction that lost souls had to be saved that helped them overcome adversities and later achieve amazing results.

In Burma, the rituals connected with the earth concern the relationship between the local communities of rice-growers and the political whole that encompasses them. The structure of this totality is a result of the history of the Burmese Buddhist monarchy which was, from the tenth century to the end of the nineteenth, the dominant political institution of the Irrawaddy valley. The Buddhist kings were viewed as the masters of the earth, a role symbolized by the ritual of the first furrow, which they “traced” in the soil in order to inaugurate the work season. Moreover, the native Burmese religious system does not include a deity exclusively associated with the earth and who could, by this right, be the object of a systematic cult. This complex religious system, dominated by Buddhism, includes another cult, that of the thirty-seven nats, whose history is linked both to the Burmese monarchical system and the adoption of Theravada Buddhism as the state religion. The fall of the monarchy in 1886 did not bring about its disappearance. On the contrary, this cult is still quite alive and touches all levels of Burmese society. It is especially vibrant in those local communities that worship the thirty-seven nats of the national pantheon, viewed as the protector of their land.

The Silk Road, which began operating more than two thousand years ago, constituted certainly for many centuries the main cultural and linguistic highway between peoples of the East and peoples of the West, and to an even greater extent between the peoples of the East or West and those living along the Silk Road in Central Asia. This is reflected by the many loan words transmitted along the Silk Road from one end to the other, especially those connected with the textile trade.

I find it hard to understand what can be meant by ‘mestiço (mixed-race) art’.

No one disputes that the Brazilian people are of mixed race, but even if this is the case, the idea that their artistic creations should also be ‘mestiço’ seems to be an argument that may be logical but is unverifiable in practice.

The first difficulty is that I can see no causal relationship between an individual's racial make-up and the character of the object he or she produces or creates. In my view human individuals are essentially cultural. So it is on the cultural level that they are defined and their creations described. From this it can be concluded that if a mulatto transmits something of his mulatice (‘mulatto-ness’) to his art, this has nothing to do with the type of blood flowing in his veins, but is related to the influence that his position as a mulatto has on his world view, if indeed he has one. Personally I can see no sign of it in the work of Machado de Assis, for example. Should writers' social and racial position influence their work? Of course. But not to the extent that it becomes visible and less still so that it determines the quality or meaning of the work.

Hydrothermal syntheses were performed at various pH values and temperatures to induce variability in kaolinite defect density. Temperature of synthesis ranged from 200 to 240°C, for 21 d. Initial pH at room temperature ranged from 0.5 to 14. The starting material was a hydrothermally treated gel, with an atomic Si/Al ratio of 0.93, partly transformed into kaolinite.

Kaolinite was obtained for a wide range of pH. Although no influence of temperature on “crystallinity” (i.e., defect density) was observed, the effect of pH was important. A continuous series was obtained from a low-defect kaolinite, with high thermal stability and a hexagonal morphology for the most acidic final pH, to a high-defect kaolinite, with low thermal stability and lath shape for the most basic final pH. These variations of kaolinite properties appear related to the pH dependence of kaolinite surface speciation. Increasing pH value results in increased cation adsorption on the kaolinite external surfaces and increases in the elongation of particles.

Monotheism: the word indicates a system of thought that proceeds from a recognition of the divinity of a single god to the exclusion of all other. This exclusivity distinguishes monotheism from henotheism or monolatry and explains why monotheism is a question of belief, unlike traditional eastern religions, among them the religion of the Old Testament. The paper shows that monotheism is in fact absent from the Hebrew Bible by examining in particular the Creation stories and the vocabulary of divine oneness. It is in the Roman period, particularly in Philo of Alexandria's work, that we find more properly monotheistic writing, influenced by exegesis based on cosmogonic myths, foremost among them the biblical story known as the Creation. Imperial power would have had to assume a truly universal character for the idea of a single god assuring that power to emerge from the multitude.

Clay minerals in shales from cores at Site 808, Nankai Trough, have been studied using X-ray diffraction (XRD), scanning transmission electron microscopy (STEM), and analytical electron microscopy (AEM) to compare the rates and mechanisms of illitization with those of coeval bentonites, which were described previously. Authigenic K-rich smectite having a high Fe content (∼7 wt. %) was observed to form directly as an alteration product of volcanic glass at a depth of ∼500 meters below seafloor (mbsf) with no intermediate precursor. Smectite is then largely replaced by Reichweite, R, (R = 1) illite-smectite (I-S) and minor illite and chlorite over depths from ∼550 to ∼700 mbsf. No further mineralogical changes occur to the maximum depth cored, ∼1300 m. Most smectite and I-S in shales are derived from alteration of glass, rather than being detrital, as is usually assumed. Discrete layer sequences of smectite, I-S, or illite coexist, indicating discontinuities of the transformation from smectite to (R = 1) I-S to illite. Authigenic Fe-rich chlorite forms concomitantly with I-S and illite, with the source of Fe from reactant smectite.

Smectite forms from glass with an intermediate precursor in coeval bentonites at approximately the same depth as in shales, but the smectite remains largely unchanged, with the exception of exchange of interlayer cations (K → Na → Ca) in response to formation of zeolites, to the bottom of the core. Differences in rates of illitization reflect the metastability of the clays. Temperature, structure-state, and composition of reactant smectite are ruled out as determining factors that increase reaction rates here, whereas differences in water/rock ratio (porosity/permeability), Si and K activities, and organic acid content are likely candidates.

This article is intended to be both an analysis, and also an account: that of a generation of young citizens, to which I belong, which is both enthusiastic about and worried by recent advances in genetics. In the modern world mind set evolves very rapidly. In the late 1960s women demanded ‘a baby when I want!’ The right to contraception followed. Then, in the early 1970s, another slogan was heard: ‘a baby if I want.’ Shortly afterwards, a woman's right to abortion was recognized. Now, new demands are increasingly being synthesized as: ‘a baby of the kind I want.’ The spectre of eugenics is slowly and insidiously being reborn at the heart of democracy.

The weathering of chlorite, one of the major minerals of the host rock in the uranium ore deposit at Koongarra, Australia, was examined by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), electron microprobe analysis, and transmission electron microscopy (TEM). The conversion sequence of chlorite weathering is: (1) chlorite; (2) chlorite/vermiculite intergrade (showing XRD responses to various treatments intermediate between those of chlorite and vermiculite); (3) interstratified chlorite and vermiculite; (4) vermiculite; and (5) kaolinite. This sequence may be more simply expressed as chlorite ⤒ vermiculite ⤒ kaolinite. The weathering finally changed chlorite into sub-micrometer to micrometer sized Fe minerals and kaolinite. The transformation of chlorite to vermiculite is chemically characterized by an Fe and Mg loss with a slight decrease in the Al/Si ratio. Mg continues to be released throughout the weathering. Fe minerals formed through chlorite weathering are located between chlorite and vermiculite domains (a few μm in size) at first, and then accumulated between grain boundaries, occasionally forming veins. The distribution of Fe minerals is suggestive of preferential pathways of water movement. The time-dependent nature of mineral alteration demonstrated in the present study must be taken into account for the quantitative estimation of radionuclide migration.

The structure of a disordered IIb Mg-chamosite was studied using Rietveld refinement techniques and powder X-ray diffraction (CuKα, 18–120° 2θ in 0.02° 2θ increments). The refinement in space group CĪ yielded high precision lattice parameters (a = 5.36982(5)Å, b = 9.3031(9)Å, c = 14.2610(6)Å, α = 90.315(5)°, β = 97.234(7)°, γ = 90.022(9)°) and atomic coordinates very similar to previous studies. However, the presence of semi-random stacking in this specimen created a situation in which not all atoms could be precisely located: the positions of the octahedral cations and anions which repeat at intervals of ±b/3 could be uniquely determined in three dimensions whereas only the z parameter of the other atoms could be refined. The reasonable appearance of the final model, despite the fact that many of the atom positions could be located in only one dimension, may have resulted because all of the atoms in this structure except O(5) repeat at intervals which are very nearly ±b/3.

Two ferriphlogopite-1M crystals with a composition (K0.99Na0.01)Σ=1.00(Mg2.73Fe2+0.17Fe3+0.08-Ti0.01)Σ=2.299[(Fe3+0.95Si3.05)Σ=4.00O10.17](OH)1.79F0.04 (sample S1) and (K1.02)Σ=1.02(Mg2.68Fe2+0.20Fe3+0.11-Mn0.01)Σ=3.00[(Fe3+0.95Si3.05)Σ=4.00O10.18](OH)1.75F0.07 (sample S2) occur within an alkali-carbonatic complex near Tapira, Belo Horizonte, Minas Gerais, Brazil. Each crystal was studied by single-crystal X-ray diffraction. The least-squares refinements of space group C2/m resulted in R values of 0.031 for S1 and 0.025 for S2. Results showed that Fe3+ substitutes for Si within the tetrahedral sites and that the Fe distribution is fully disordered. The octahedral sites are preferentially occupied by Mg. The presence of Fe3+ within the tetrahedral sheet produces increased cell edge lengths. For sample S1, a = 5.362 Å, b = 9.288 Å, c = 10.321 Å and the monoclinic β angle was: β = 99.99°. For sample S2, a = 5.3649 Å, b = 9.2924 Å, c = 10.3255 Å and the monoclinic β angle was: β = 99.988°. The tetrahedral rotation angle of α = 11.5° is necessary for tetrahedral and octahedral sheet congruency. The enlarged tetrahedral sites are regular, with cations close to their geometric center. Ferriphlogopites have identical mean bond lengths for M1 and M2 sites within standard deviation. The M1-O3 and M2-O3 bond lengths are longer than the mean so that O3 may articulate with the tetrahedra.

The slow construction of the urban civilization: the socio-historic distances in the reading of an urban form.

The post-Soviet city is generally envisioned as a city in transition, on a more or less direct course towards the market city. This observation recalls the reconstitution of the residential property stock through privatizations, the redefinition of the individual in countries shaped by collectivist references, the post-national reconstitution of the economy and the political structures (Dressier, Gatti, and Perez-Agote, 1999). L. Kogan's approach suggests that we need a deeper analysis in the shaping of ‘urban civilization’ and the construction of urban policies, to change the way we look at the construction of urban permanence.

Layered double hydroxides (LDH's) interlayered with silicate anions were prepared by reaction of tetraethylorthosilicate (TEOS) with synthetic meixnerite-like precursors of the type [Mg1−xAlx(OH)2][OH−]x·zH2O, where (1 − x)/x ≈ 2, 3, or 4. TEOS hydrolysis at ambient temperature occurred readily in the galleries of the hydroxide precursors with (1 − x)/x ≈ 3 or 4, but a temperature of ∼100°C was required to achieve silicate intercalation for the LDH composition with (1 − x)/x ≈ 2. On the basis of the observed gallery heights (∼7.0−∼7.2 Å) and 29Si MAS NMR spectra that indicated the presence of Q2, Q3, and Q4SiO4 sites, the intercalated silicate anions, which are formed by condensation reactions of silanol groups and partial neutralization of SiOH groups with gallery hydroxide ions, are assigned short chain structures. Also, some O3SiOH groups become grafted to the LDH layers by condensation with MOH groups on the gallery surfaces. The LDH-silicates exhibited comparable non-microporous N2 BET surface areas in the range 59–85 m2/g, but they differed substantially in acid/base reactivities, as judged by their relative activities for the catalytic dehydration/disproportionation of 2-methyl-3-butyn-2-ol (MBOH). Under reaction conditions where the LDH structure is retained (150°C), all the silicate intercalates showed mainly basic reactivities for the disproportionation of MBOH to acetone and acetylene. However, all the LDH silicates were less reactive than the corresponding LDH carbonates. Conversion of the LDH silicates to metal oxides at 450°C introduced acidic activity for MBOH dehydration, whereas the metal oxides formed by LDH carbonate decomposition were exclusivity basic under analogous conditions.

Transcending all ideological differences, the Book of Metamorphoses (Yijing, I-Ging) has been viewed in traditional Chinese culture as a basic work not only of the art of sooth-saying, but of an understanding of the world as a whole. Among the 64 situations described therein, the 56th deals with the constellation of ‘the wanderer’ (Lü). It is symbolized by the ‘fire’ above the ‘mountain’, i.e., a fleeting phenomenon whose ephemeral character is highlighted by the fact that it appears above something as solid and immovable as a mountain.

X-ray diffraction (XRD) analysis of small quantities of clay mounted on glass slides using conventional Bragg-Brentano geometry generally produces unsatisfactory low-intensity reflections masked by amorphous substrate scatter. Glancing-incidence asymmetric Bragg diffraction, an alternative uncoupled geometry, uses a fixed low-incidence angle and parallel-beam optics to increase path length through the sample and decrease X-ray penetration into the substrate. To evaluate this technique on thin soil clay films, results from conventional Bragg-Brentano and glancing-incidence diffraction (GID) were compared for progressively diluted clay suspensions separated from 2 southeastern soils with typical mineral assemblages. Patterns produced by GID showed overall higher reflection intensities and reduced substrate scatter, especially at higher 2θ angles within the amorphous glass region. Using GID, positive identification of clay minerals was obtained from sample quantities as small as 0.005 mg cm−2 and suspensions as dilute as 29 mg L−1.