Numerical simulations of anomalous diffusion

In this paper we present numerical methods - finite differences and finite elements - for solution of partial differential equation of fractional order in time for one-dimensional space. This equation describes anomalous diffusion which is a phenomenon connected with the interactions within the complex and non-homogeneous background. In order to consider physical initial-value conditions we use fractional derivative in the Caputo sense. In numerical analysis the boundary conditions of first kind are accounted and in the final part of this paper the result of simulations are presented.Comment: 5 pages, 2 figures, CMM 2003 Conference Gliwice/Wisla Polan

Review of the scientific evidence on the individual sensitivity to electromagnetic fields (EHS)

Publisher Copyright: © 2021 Dariusz Leszczynski, published by De Gruyter, Berlin/Boston 2021.Part of the population considers themselves as sensitive to the man-made electromagnetic radiation (EMF) emitted by powerlines, electric wiring, electric home appliance and the wireless communication devices and networks. Sensitivity is characterized by a broad variety of non-specific symptoms that the sensitive people claim to experience when exposed to EMF. While the experienced symptoms are currently considered as a real life impairment, the factor causing these symptoms remains unclear. So far, scientists were unable to find causality link between symptoms experienced by sensitive persons and the exposures to EMF. However, as presented in this review, the executed to-date scientific studies, examining sensitivity to EMF, are of poor quality to find the link between EMF exposures and sensitivity symptoms of some people. It is logical to consider that the sensitivity to EMF exists but the scientific methodology used to find it is of insufficient quality. It is time to drop out psychology driven provocation studies that ask about feelings-based non-specific symptoms experienced by volunteers under EMF exposure. Such research approach produces only subjective and therefore highly unreliable data that is insufficient to prove, or to disprove, causality link between EHS and EMF. There is a need for a new direction in studying sensitivity to EMF. The basis for it is the notion of a commonly known phenomenon of individual sensitivity, where individuals' responses to EMF depend on the genetic and epigenetic properties of the individual. It is proposed here that new studies, combining provocation approach, where volunteers are exposed to EMF, and high-throughput technologies of transcriptomics and proteomics are used to generate objective data, detecting molecular level biochemical responses of human body to EMF.Peer reviewe

The Study of Middle School Mathematics and Science Teachers\u27 Practices, Perceptions, and Attitudes Related to Mathematics and Science Integration

The purpose of this qualitative study was to investigate the nature of mathematics and science connections made by sixth and seventh grade mathematics and science teachers in their classrooms. This study also examined the extent to which these connections represented mathematics and science integration and described the teachers’ perceptions of and attitudes about mathematics and science integration. The primary data sources included classroom observations and teacher interviews. Findings suggested that teacher practices in making mathematics and science connections in the classroom incorporated many of the characteristics of integrated instruction presented in the literature. Teacher attitudes toward integration were found to be generally positive and supportive of integrated instruction. Mathematics teachers shared a common perception of integration being two separate lessons taught together in one lesson. In contrast, science teachers perceived integration to be a seamless blend of the two disciplines. The researcher related these perceptions and attitudes to the teachers’ past experiences with mathematics and science connections and integration, and also to their practices of mathematics and science connections in the study

Call for consensus debate on mobile phone radiation and health : Are current safety guidelines sufficient to protect everyone's health?

Peer reviewe

Leszczynski Soundscape

Sitting outside of the Fisher Student Center, on black lacquered chairs, was the location of my soundscape experience. Being outside and an epicenter of activity, the amount of noise there was abundant. I was still outdoors, thus explaining the neutral noise of the environment. Some of the natural, non-human sounds I heard were from insects. A distinct, crescendo buzz came from above in the trees. The timbre was brash, like a trumpet that hit a high pitch note with vibrato. In addition, there were occasions where dried leaves would hit the ground from falling off a branch. This noise was soft, quick as well. But being in front of Fisher, the human activity was abundant

Leap into Modernity – Political Economy of Growth on the Periphery, 1943–1980

This book describes struggles of different countries and their development after World War II. It presents a panorama of different ideologies of accelerated development, which dominated the world just before the war and in the next 40 years. The author explains why in the 1970s global and local elites began to turn away from the state, exchanging statism for the belief in the «invisible hand of the market» as a panacea for underdevelopment. He focuses not only on the genesis of underdevelopment, but also on the causes of popularity of economic planning, and the advent of neoliberalism in the discourse of development economics. This book evaluates the power of state as a vehicle of progress and focuses in detail on the Soviet Union, China, Poland, Ghana, Tanzania, and South Korea