Amplifiers employing positive or negative feedback are fundamental building blocks in electronic circuits. Negative feedback is employed to linearize amplifiers in order to reduce distortion of the input signal and improve amplifier bandwidth. Conversely, applying sufficient positive feedback to an amplifier results in an oscillator because an output signal occurs when no input signal is presen...

Introduction: Odontogenic tumors include a variety of lesions that are classified from hamartomas to benign and malignant neoplasms. Angiogenesis process helps neoplastic tissue to gain an adequate supply of oxygen and also to remove the waste products. Mean Vessel Density (MVD) evaluation is a common method for assessing angiogenesis by using different markers. To the best of our knowledge, t...

We used adaptation to high and low gains in a virtual reality setup of the hand to test competing hypotheses about the excitability changes that accompany motor learning. Excitability was assayed through changes in amplitude of motor evoked potentials (MEPs) in relevant hand muscles elicited with single-pulse transcranial magnetic stimulation (TMS). One hypothesis is that MEPs will either incre...

Drosophila melanogaster remains an excellent model system for understanding complex biological processes. This is in large part due to the many tools that can be applied experimentally. The control of transgene expression in Drosophila has been an extremely successful technique for assessing genetic function. P-element mediated germ-line transformation is routinely used to generate novel Drosop...

Consumers' food choices play a crucial role in the shift toward increased sustainability. However, consumers' knowledge about daily items is not sufficient to evoke environmentally friendly choices. To facilitate towards more sustainable consumption, providing understandable information environmental impact of products an easily accessible and effective way seems be promising. With this outcome...

This study assessed the potential of back extensor strength as an alternative marker frailty. A total 560 farmers were included. Computed tomography scans measured fat and muscle mass volumes at mid-L4 vertebral level. Back was in a seated posture. Multivariate linear regression used to analyze associations between trunk muscle/fat compositions. The participants divided into two groups based on...