A note on cosmological Levi-Civita spacetimes in higher dimensions

We find a class of solutions to cosmological Einstein equations that generalizes the four dimensional cylindrically symmetric spacetimes to higher dimensions. The AdS soliton is a special member of this class with a unique singularity structure.Comment: 3 pages; version to appear in Phys. Rev.

Gravitational charges of transverse asymptotically AdS spacetimes

Using Killing-Yano symmetries, we construct conserved charges of spacetimes that asymptotically approach to the flat or Anti-de Sitter spaces only in certain directions. In D dimensions, this allows one to define gravitational charges (such as mass and angular momenta densities) of p-dimensional branes/solitons or any other extended objects that curve the transverse space into an asymptotically flat or AdS one. Our construction answers the question of what kind of charges the antisymmetric Killing-Yano tensors lead to.Comment: 11 pages, no figures, REVTeX 4; version 2: important corrections made; version 3: one new paragraph and 2 references added, accepted for publication in PR

An Empirical Model for the Turkish Trade Balance: New Evidence from ARDL Bounds Testing Analyses

In this paper, the determinants of the Turkish trade balance are tried to be analyzed in an empirical modelling approach. For this purpose, the contemporaneous ARDL-based bounds testing has been used to examine the existence of a long run co-integration relationship between the variables of our interest. The estimation results indicate that real exchange rate depreciations improves the trade balance in a strong and significant way, that domestic real income affects the trade balance negatively, and that trade balance is strongly improved due to an increase in foreign real income. No significant effect of crude oil prices can be observed on trade balance. The error correction modeling gives results in line with the long run findings of the co-integration analysis.Trade Balance, ARDL Bounds Testing Approach, Turkish Economy

Spherically symmetric solutions of Einstein + non-polynomial gravities

We obtain the static spherically symmetric solutions of a class of gravitational models whose additions to the General Relativity (GR) action forbid Ricci-flat, in particular, Schwarzschild geometries. These theories are selected to maintain the (first) derivative order of the Einstein equations in Schwarzschild gauge. Generically, the solutions exhibit both horizons and a singularity at the origin, except for one model that forbids spherical symmetry altogether. Extensions to arbitrary dimension with a cosmological constant, Maxwell source and Gauss-Bonnet terms are also considered.Comment: 6 pages, no figures, REVTeX

House of Marketing Quality Using the House of Quality to Develop Marketing Strategies

The paper presents a Model for Customer Oriented Marketing Strategies, using the House of Quality Approach. The model is presented with an example of Spinning Machinery Marketing

AN INVESTIGATION OF THE RELATIONSHIP BETWEEN WAIST CIRCUMFERENCES AND WAIST-TO-HEIGHT RATIOS WITH DIFFERENT VARIABLES IN WOMEN WITH AGES BETWEEN 18 AND 53 YEARS

The aim of this study is to investigate whether waist circumference and waist-to-height ratios in women are affected by such factors as age, marital status, age at first marriage, parental status, number of children, and regular physical activity. Furthermore, the relationship between chronic diseases and waist circumference and waist-to-height ratios will also be examined. A total of 111 women were randomly selected to participate in this study, of average age 32.26 ± 8.74 years, mean height 162.76 ± 5.44 cm, and average weight 67.38 ± 11.74 kg. In addition to height, weight, and age, waist circumferences and waist-to-height ratios were also determined. Questionnaires recorded the participants’ marital status, age at first marriage, number of children, smoking status, exercise habits, and any chronic health conditions. ANOVA and the student’s t-test were used to analyze these data. Results indicated that waist circumference was significantly associated with age, number of children, marital status, menopausal status, regular exercise, parental status, and the presence of a chronic health condition (p < 0.01), as well as with marital status (p < 0.05). Waist circumference was not found to have a statistically significant association with smoking status (p < 0.05). Waist-to-height ratios were determined to associated with age, marital status, menopausal status, regular exercise, parental status, and chronic health conditions (p < 0.01) and with age at first marriage (p < 0.05), while the relationships with number of children and smoking status were not found to be statistically significant (p > 0.05).    Article visualizations

Magnetic Curves According to Bishop Frame and Type-2 Bishop Frame in Euclidean 3-Space

In this paper, we define the notions of T-magnetic, N1-magnetic, N2-magnetic curves according to Bishop frame and ξ1-magnetic, ξ2-magnetic, B-magnetic curves according to type-2 Bishop frame in Euclidean 3-space. Also, we obtain the magnetic vector field V when the curve is T-magnetic, N1-magnetic, N2-magnetic trajectory of V according to Bishop frame and ξ1-magnetic, ξ2-magnetic, B-magnetic trajectory of V according to type-2 Bishop frame. Finally, we give an example for magnetic curves according to Bishop frame and type-2 Bishop frame

One Juliet and four Romeos: VeA and its methyltransferases

Fungal secondary metabolism has become an important research topic with great biomedical and biotechnological value. In the postgenomic era, understanding the diversity and the molecular control of secondary metabolites (SMs) are two challenging tasks addressed by the research community. Discovery of the LaeA methyltransferase 10 years ago opened up a new horizon on the control of SM research when it was found that expression of many SM gene clusters is controlled by LaeA. While the molecular function of LaeA remains an enigma, discovery of the velvet family proteins as interaction partners further extended the role of the LaeA beyond secondary metabolism. The heterotrimeric VelB–VeA–LaeA complex plays important roles in development, sporulation, secondary metabolism, and pathogenicity. Recently, three other methyltransferases have been found to associate with the velvet complex, the LaeA-like methyltransferase F and the methyltransferase heterodimers VipC–VapB. Interaction of VeA with at least four methyltransferase proteins indicates a molecular hub function for VeA that questions: Is there a VeA supercomplex or is VeA part of a highly dynamic cellular control network with many different partners