Assessing Domain Specificity in the Measurement of Mathematics Calculation Anxiety

An online, cross-sectional approach was taken, including an opportunity sample of 160 undergraduate students from a university in the Midlands, UK. Exploratory factor analysis indicated a parsimonious, four-factor solution: abstract maths anxiety, statistics probability anxiety, statistics calculation anxiety, and numerical calculation anxiety. The results support previous evidence for the existence of a separate “numerical anxiety” or “arithmetic computation” anxiety component of maths anxiety and also support the existence of anxiety that is specific to more abstract maths. This is the first study to consider the multidimensionality of maths anxiety at the level of the calculation type. The 26-item Maths Calculation Anxiety Scale appears to be a useful measurement tool in the context of maths calculation specifically.N/

Preliminary Investigation of Experimental Research on Savory (Satureja hortensis L.) In Vitro Modeling Possibility Using the Calogenesis Technique

Investigating the possibilities for in vitro plant modeling by using the calogenesis technique is one of the ways to exploit cell plasticity – the vegetable type, which plant biotechnology now offers an alternative for obtaining biomass as a source of raw material in various industries. One of the known plants cultivated by humans since ancient time, and recognized in the contemporary period as a dedicated source of plant material for different industries, because it has properties that recommend its use in food, medicine and beekeeping, is savory (Satureja hortensis L.). Our preliminary experimental research aimed at investigating the possibility of in vitro modeling of savory (Satureja hortensis L.) by using the calogenesis technique. This paper presents the experimental results which have been achieved by investigating the possibility of practical achievement, both by establishing aseptic cultures using savory (Satureja hortensis L.) seeds, and also by in vitro modeling of savory (Satureja hortensis L.) explants, considering the leaf, cotyledon, epicotyl, hypocotyl and radicle, in under to obtain callus by the influence of exogenous phytohormones (BA, TDZ and 2,4-D)

Irreducible Killing Tensors from Third Rank Killing-Yano Tensors

We investigate higher rank Killing-Yano tensors showing that third rank Killing-Yano tensors are not always trivial objects being possible to construct irreducible Killing tensors from them. We give as an example the Kimura IIC metric were from two rank Killing-Yano tensors we obtain a reducible Killing tensor and from third rank Killing-Yano tensors we obtain three Killing tensors, one reducible and two irreducible.Comment: 10 page

Baxter T-Q Equation for Shape Invariant Potentials. The Finite-Gap Potentials Case

The Darboux transformation applied recurrently on a Schroedinger operator generates what is called a {\em dressing chain}, or from a different point of view, a set of supersymmetric shape invariant potentials. The finite-gap potential theory is a special case of the chain. For the finite-gap case, the equations of the chain can be expressed as a time evolution of a Hamiltonian system. We apply Sklyanin's method of separation of variables to the chain. We show that the classical equation of the separation of variables is the Baxter T-Q relation after quantization.Comment: 25 pages, no figures Extended section 10, one reference added. Version accepted for publication in Jurnal of Mathematical Physic

STUDY ON FACTORS THAT INFLUENCE WATER EROSION ON AGRICULTURAL LAND - REVIEW

Soil erosion is a global threat to the natural resources and is particularly responsible for reduction in crop yield due to reduction in land productivity and storage capacity of multipurpose reservoirs due to continuous siltation (Rupesh Jayaram Patil, 2018). Soil erosion is process of soil loss. Particularly from the surface, but sometimes a large mass of soil may be lost, as in landslides and riverbank erosion. Soil erosion processes are mainly caused by two mechanisms: raindrop impact and surfacewash resulting fromwater in excess of infiltration (Ellison, 1947). Soil erosion is determined by a number of factors such as: relief, climate, soil and solidification rock, vegetation. Soil erosion is a natural process, occurring over geological time, and most concerns about erosion are related to accelerated erosion, where the natural rate has been significantly increased by human activity. Soil erosion poses severe limitations to sustainable agricultural land use, as it reduces on-farm soil productivity and causes the accumulation of sediments and agro-chemicals in waterways

The Geometry of Warped Product Singularities

In this article the degenerate warped products of singular semi-Riemannian manifolds are studied. They were used recently by the author to handle singularities occurring in General Relativity, in black holes and at the big-bang. One main result presented here is that a degenerate warped product of semi-regular semi-Riemannian manifolds with the warping function satisfying a certain condition is a semi-regular semi-Riemannian manifold. The connection and the Riemann curvature of the warped product are expressed in terms of those of the factor manifolds. Examples of singular semi-Riemannian manifolds which are semi-regular are constructed as warped products. Applications include cosmological models and black holes solutions with semi-regular singularities. Such singularities are compatible with a certain reformulation of the Einstein equation, which in addition holds at semi-regular singularities too.Comment: 14 page

One-Dimensional Impenetrable Anyons in Thermal Equilibrium. II. Determinant Representation for the Dynamic Correlation Functions

We have obtained a determinant representation for the time- and temperature-dependent field-field correlation function of the impenetrable Lieb-Liniger gas of anyons through direct summation of the form factors. In the static case, the obtained results are shown to be equivalent to those that follow from the anyonic generalization of Lenard's formula.Comment: 16 pages, RevTeX

Local maximum points of explicitly quasiconvex functions

This work concerns generalized convex real-valued functions defined on a nonempty convex subset of a real topological linear space. Its aim is twofold: first, to show that any local maximum point of an explicitly quasiconvex function is a global minimum point whenever it belongs to the intrinsic core of the function’s domain and second, to characterize strictly convex normed spaces by applying this property for a particular class of convex functions