Equipment Level of Technical Education/Culture Classrooms in Accordance With Pedagogical Standards for Primary Education and Norms of School Space in The Federation of Bosnia and Herzegovina

Full standardization that is adequate to the goal and function of teaching technical contents in primary schools still hasnrsquot been done in the educational system of Bosnia amp Herzegovina. An equipped classroom in accordance with the pedagogical standards for primary education and norms of school space in schools of the Federation of Bosnia and Herzegovina, and which is the case in all of Bosnia and Herzegovina, doesnrsquot come even close to the accepted standards and norms. Classrooms, in which a systematic, non-experimental observation of the degree of readiness to hold a class in has been held, have shownnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbsp a disturbing lack of tools and equipment needed to holdnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbsp a successful lecture. For a more detailed and all-encompassing work in the field, several changes have to be made: material-technical basis of work (equip schools with teaching aids, materials, adequate tools and machines for specialized work), teaching plans and programs (reduce the comprehensive curricula, and adjust it to the age of the pupils), didactic-methodic basis of work, and the stands in most important factors in educational work (students and teachers). Curriculum and syllabi for this subject need adjusting with the psycho-physical age of the learner and in that way allow them to follow trends in technology, and in return theyrsquod be more included in the process of realization of the subject. It is necessary to modernize the class, focus the teaching onto the learner, and secure constant learning opportunities to the teachers through seminars and education on various techniques and technologies that can be applied in teaching. Keeping in touch with the times we live in, following the latest technological advancements and applying them in the teaching process is the path that education has to follow

Reactive Dye Degradation by AOPs; Development of a Kinetic Model for UV/H2O2 Process

An application of UV/H2O2 process for the treatment of model wastewater containing organic reactive azo dye C.I. Reactive Blue 137 (RB137) was studied. The efficiency of applied process for decolorization and mineralization of RB137 model solution is discussed. The influence of operating process parameters, initial pH and initial concentration of H2O2, as well as initial dye mass concentration on process effectiveness was investigated. Both direct UV photolysis and OH radical attack were assumed as RB137 degradation mechanisms and a detailed kinetic model for dye degradation by UV/H2O2 process was proposed. The predicted system behavior was compared with experimentally obtained results of decolorization and mineralization of RB137 wastewater. A sensitivity analysis for the evaluation of importance of each reaction used in the model development was also included

Can Linguistic Correctness Provide Us with Categorical Semantic Norms?

Saul Kripke’s paradoxical argument in Wittgenstein on Rules and Private Language (1982) has generated an extravagant number of responses. A major debate prompted by this book has focused on the plausibility and role of the supposed normative character of meaning; the argument itself is often taken to rely on the assumption that meaning is irreducibly normative. Following Boghossian (1989), the normativity of meaning has been understood as closely tied to the existence of semantic correctness conditions. After a brief introduction to the background of the debate, this work will focus on whether the normativity of meaning may be better understood as stemming from a different type of correctness, namely linguistic correctness. Linguistic correctness differs from semantic correctness insofar as it is related to conventional, and not truth-functional, meaning. I will begin by clarifying some of the features of linguistic correctness. First, I will outline some reasons why the distinction between linguistic and semantic correctness should be maintained. Then, I will anticipate a possible criticism and argue that linguistic correctness does not belong to the domain of pragmatics, as it is relevant to our understanding of conventional meaning. Finally, I will try to show that linguistic “oughts” are constitutive of meaning. Having established these basic features of linguistic correctness, I will investigate whether the fact that it is constitutive of meaning can vindicate the idea that meaning is robustly, irreducibly normative. By applying arguments from the realm of moral philosophy – within which, too, there have been attempts to show that constitutive facts can give rise to categorical moral norms – I will argue that linguistic correctness cannot give rise to categorical semantic norms. Linguistic correctness may be, nevertheless, a useful tool for explaining some of our intuitions about meaning

Quantum Hall Effects in Graphene-Based Two-Dimensional Electron Systems

In this article we review the quantum Hall physics of graphene based two-dimensional electron systems, with a special focus on recent experimental and theoretical developments. We explain why graphene and bilayer graphene can be viewed respectively as J=1 and J=2 chiral two-dimensional electron gases (C2DEGs), and why this property frames their quantum Hall physics. The current status of experimental and theoretical work on the role of electron-electron interactions is reviewed at length with an emphasis on unresolved issues in the field, including assessing the role of disorder in current experimental results. Special attention is given to the interesting low magnetic field limit and to the relationship between quantum Hall effects and the spontaneous anomalous Hall effects that might occur in bilayer graphene systems in the absence of a magnetic field

Whole-genome sequence of the first sequence type 27 Brucella ceti strain isolated from European waters

ABSTRACT Brucella spp. that cause marine brucellosis are becoming more important, as the disease appears to be more widespread than originally thought. Here, we report a whole and annotated genome sequence of Brucella ceti CRO350, a sequence type 27 strain isolated from a bottlenose dolphin carcass found in the Croatian part of the northern Adriatic Sea. </jats:p

Spin and valley quantum Hall ferromagnetism in graphene

In a graphene Landau level (LL), strong Coulomb interactions and the fourfold spin/valley degeneracy lead to an approximate SU(4) isospin symmetry. At partial filling, exchange interactions can spontaneously break this symmetry, manifesting as additional integer quantum Hall plateaus outside the normal sequence. Here we report the observation of a large number of these quantum Hall isospin ferromagnetic (QHIFM) states, which we classify according to their real spin structure using temperature-dependent tilted field magnetotransport. The large measured activation gaps confirm the Coulomb origin of the broken symmetry states, but the order is strongly dependent on LL index. In the high energy LLs, the Zeeman effect is the dominant aligning field, leading to real spin ferromagnets with Skyrmionic excitations at half filling, whereas in the `relativistic' zero energy LL, lattice scale anisotropies drive the system to a spin unpolarized state, likely a charge- or spin-density wave.Comment: Supplementary information available at http://pico.phys.columbia.ed

Excitonic Superfluid to pseudo-spin density wave transition in bilayer quantum Hall systems

We construct a quantum Ginsburg-Landau theory to study the quantum phase transition from the excitonic superfluid (ESF) to a possible pseudo-spin density wave (PSDW) at some intermediate distances driven by the magneto-roton minimum collapsing at a finite wavevector. We analyze the properties of the PSDW and explicitly show that a square lattice is the favorite lattice. We suggest that correlated hopping of vacancies in the active and passive layers in the PSDW state leads to very large and temperature dependent drag consistent with the experimental data. Comparisons with previous microscopic numerical calculations are made. Further experimental implications are given.Comment: 4+ pages, 2 figures. Final version to appear in Phys. Rev. Let

Properties of Graphene: A Theoretical Perspective

In this review, we provide an in-depth description of the physics of monolayer and bilayer graphene from a theorist's perspective. We discuss the physical properties of graphene in an external magnetic field, reflecting the chiral nature of the quasiparticles near the Dirac point with a Landau level at zero energy. We address the unique integer quantum Hall effects, the role of electron correlations, and the recent observation of the fractional quantum Hall effect in the monolayer graphene. The quantum Hall effect in bilayer graphene is fundamentally different from that of a monolayer, reflecting the unique band structure of this system. The theory of transport in the absence of an external magnetic field is discussed in detail, along with the role of disorder studied in various theoretical models. We highlight the differences and similarities between monolayer and bilayer graphene, and focus on thermodynamic properties such as the compressibility, the plasmon spectra, the weak localization correction, quantum Hall effect, and optical properties. Confinement of electrons in graphene is nontrivial due to Klein tunneling. We review various theoretical and experimental studies of quantum confined structures made from graphene. The band structure of graphene nanoribbons and the role of the sublattice symmetry, edge geometry and the size of the nanoribbon on the electronic and magnetic properties are very active areas of research, and a detailed review of these topics is presented. Also, the effects of substrate interactions, adsorbed atoms, lattice defects and doping on the band structure of finite-sized graphene systems are discussed. We also include a brief description of graphane -- gapped material obtained from graphene by attaching hydrogen atoms to each carbon atom in the lattice.Comment: 189 pages. submitted in Advances in Physic

Identification of the Microsporidian Encephalitozoon cuniculi as a New Target of the IFNγ-Inducible IRG Resistance System

The IRG system of IFNγ-inducible GTPases constitutes a powerful resistance mechanism in mice against Toxoplasma gondii and two Chlamydia strains but not against many other bacteria and protozoa. Why only T. gondii and Chlamydia? We hypothesized that unusual features of the entry mechanisms and intracellular replicative niches of these two organisms, neither of which resembles a phagosome, might hint at a common principle. We examined another unicellular parasitic organism of mammals, member of an early-diverging group of Fungi, that bypasses the phagocytic mechanism when it enters the host cell: the microsporidian Encephalitozoon cuniculi. Consistent with the known susceptibility of IFNγ-deficient mice to E. cuniculi infection, we found that IFNγ treatment suppresses meront development and spore formation in mouse fibroblasts in vitro, and that this effect is mediated by IRG proteins. The process resembles that previously described in T. gondii and Chlamydia resistance. Effector (GKS subfamily) IRG proteins accumulate at the parasitophorous vacuole of E. cuniculi and the meronts are eliminated. The suppression of E. cuniculi growth by IFNγ is completely reversed in cells lacking regulatory (GMS subfamily) IRG proteins, cells that effectively lack all IRG function. In addition IFNγ-induced cells infected with E. cuniculi die by necrosis as previously shown for IFNγ-induced cells resisting T. gondii infection. Thus the IRG resistance system provides cell-autonomous immunity to specific parasites from three kingdoms of life: protozoa, bacteria and fungi. The phylogenetic divergence of the three organisms whose vacuoles are now known to be involved in IRG-mediated immunity and the non-phagosomal character of the vacuoles themselves strongly suggests that the IRG system is triggered not by the presence of specific parasite components but rather by absence of specific host components on the vacuolar membrane.Grants from the Deutsche Forschungsgemeinschaft: SFB635, 670, 680, SPP1399