International expansion and buyer-driven commodity chain: the case of TESCO

This paper is prepared within the project ‘The Emerging Industrial Architecture of the Wider Europe; the Co-evolution of Industrial and Political Structures ’ funded by the ESRC programme ‘One Europe or Several?’ * Authors would like to thank Nick von Tunzelmann for his valuable comments in earlier draft versions. Following the collapse of Communism, central European countries have experienced an invasion of foreign investment in many sectors. The sectors that target consumers directly have found an opportunity to gain market share with considerable long-term profit potential. Thus, investments by western retailers are quite large when compared to other industries1. These multinational

Industries, costs and macroeconomic regimes in Central and Eastern European countries: towards stylised facts

Economists have difficulties to conceptualise and model the relationship between macroeconomic policy and industry change. This paper explores the relationships between industry cost structures and macroeconomic regimes in central and east European countries (CEECs). It finds that the cost structures are more homogenous within industries than within countries. Changes in cost structures are dominantly intra-industry, i.e. unrelated to changes in industry structures though in some countries structural and specialisation effects are also significant. The paper links the intensity of changes in industry cost structures with a composite measure of macroeconomic stability. In the case of five CEECs, it finds that there is a country-specific relationship between changes in costs and macroeconomic stability. Based on these findings the paper provides arguments for integration of macroeconomic and industrial (technology) policies

Evaluation of Watson-like Integrals for Hyper bcc Antiferromagnetic Lattice

Watson-like integrals for a d-dimensional bcc antiferromagnetic lattice I_d(\eta) and J_d(\eta) and another two similar integrals are evaluated in an exact way in terms of generalized hypergeometric functions. A simple formula connecting Id and Jd+1 is given along with the differential equations for I_d(\eta) and J_d(\eta). An application of I_d and J_d in the theory of the Heisenberg antiferromagnet is discussed, together with possible generalizations to non-integer values of d. Corresponding integrals for sc lattices are also briefly reviewed.Comment: 13 pages, 2 figures, Accepted for publication in Journal of Physics A: Mathematical & Theoretical 201

Allergotoxicology: Research of Pollutant Influence on the Development of Allergic Reactions

Alergotoksikologija je znanstvenoistraživačko područje koje se bavi ispitivanjem utjecaja polutanata (onečišćivača zraka) na nastanak alergijskih reakcija i bolesti. Ispitivanja su prvobitno bila usmjerena na polutante vanjskih prostora, a u novije vrijeme sve više na polutante unutarnjih prostora u kojima ljudi provode većinu vremena. Polutanti po svojoj prirodi mogu biti krute, tekuće ili plinovite čestice, koje se razlikuju s obzirom na veličinu, sastav i izvor iz kojeg nastaju. S obzirom na izvor mogu biti biološkog i nebiološkog podrijetla. Polutanti koji su predmet suvremenih istraživanja s gledišta nastanka alergijskih bolesti su respirabilne krute čestice, ozon, dušični oksidi i bioaerosoli. Mehanizam djelovanja polutanata ovisi o veličini čestica, njihovoj topljivosti i mjestu ulaska u organizam. Dosadašnja ispitivanja su pokazala da različite čestice uvjetuju različite imunosne i neimunosne odgovore u organizmu. Interakcija polutanata i alergena može se zbivati izvan eksponirane osobe, tj. sa samim alergenom ili u eksponiranoj osobi na sluznicama i koži. Polutanti mogu biti nosioci alergena i mogu interferirati na različitim nivoima u nastanku alergijske reakcije. U ovom prikazu razma raju se dosadašnja saznanja o mehanizmima djelovanja polutanata na alergene, na imunosni sustav izloženih osoba na osnovi epidemioloških populacijskih istraživanja, kliničkih studija ekspozcije u kontroliranim uvjetima i eksperimentalnih testnih sistema in vivo i in vitro.Allergotoxicology studies the infl uence of pollutants on the development of allergic reactions and diseases. At the beginning, the research was focused on outdoor air pollutants, while recently it turns to the indoor environment, mainly because people this is where people spend most of their time. Air pollutants may be solid, soluble, or gaseous particles in nature, and they can differ in size, structure, and sources. Pollutants can be of biological or nonbiological origin. Currently interesting air pollutants include particulate matter, ozone, nitrogen oxides, and bioaerosols. The mechanisms of pollutant activity depend on the particle size, solubility, site of deposition, and specifi c chemical properties. Recent studies have shown that different pollutants provoke different immunological and nonimmunological responses in exposed persons. Interaction between air pollutants and allergens can take place outside the exposed person i.e. with allergen itself, or inside the organism on mucous membranes and skin. Pollutants may be the carriers of allergens and may exacerbate allergic reactions and diseases. This review presents recent views about the mechanisms of pollutant activity on allergens and immune system response in exposed persons, based on epidemiological population studies, clinical studies of exposure under controlled conditions, and experimental tests in vitro and in vivo

Building the knowledge-based economy in countries in transition - from concepts to policies

No description supplie

Magnetic properties of quasi two-dimensional antiferromagnet Rb 2MnCl 4 with XXZ interaction anisotropy

75.70.Ak Magnetic properties of monolayers and thin films, 75.30.Ds Spin waves, 75.30.Gw Magnetic anisotropy, 75.50.Ee Antiferromagnetics,

Low-temperature properties of ferromagnetic Fibonacci superlattices

Theoretical analysis of the layered quasi-periodic Fibonacci structures (superlattices-sequence) is presented for the systems consisting of n A and n B ferromagnetically ordered planes within the layers with S a and S b spins, respectively, while the interfaces are coupled with bilinear and/or biquadratic exchange interaction, within the framework of localized spin model in the low-temperature limit. Transfer matrix method and direct diagonalization after the bosonization in Bloch's approximation resulted both in the same analytical expression for the magnon-excitation energy. The equivalence (at low-temperatures) of the transfer matrix (spin) and boson approach was discussed, as well as the role of the interlayer biquadratic coupling between different blocks constituting the Fibonacci sequences. Also, our approach allows the determination of the internal energy and calculation of the magnon contribution to the specific heat. It was clearly demonstrated that the magnon specific heat vanishes for T → 0. Our results are compared with the results of other authors. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 200771.70.Gm Exchange interactions, 75.30.Ds Spin waves, 75.30.Hx Magnetic impurity interactions,