Steatometry and elastometry as methods of noninvasive diagnostics of pancreatic steatosis and fibrosis in children

AbstractUpon stimulation, plants elicit electrical signals that can travel within a cellular network analogous to the animal nervous system. It is well-known that in the human brain, voltage changes in certain regions result from concerted electrical activity which, in the form of action potentials (APs), travels within nerve-cell arrays. Electro- and magnetophysiological techniques like electroencephalography, magnetoencephalography, and magnetic resonance imaging are used to record this activity and to diagnose disorders. Here we demonstrate that APs in a multicellular plant system produce measurable magnetic fields. Using atomic optically pumped magnetometers, biomagnetism associated with electrical activity in the carnivorous Venus flytrap, Dionaea muscipula, was recorded. Action potentials were induced by heat stimulation and detected both electrically and magnetically. Furthermore, the thermal properties of ion channels underlying the AP were studied. Beyond proof of principle, our findings pave the way to understanding the molecular basis of biomagnetism in living plants. In the future, magnetometry may be used to study long-distance electrical signaling in a variety of plant species, and to develop noninvasive diagnostics of plant stress and disease.

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Noninvasive diagnostics of heart rate variability in patients with undifferentiated connective tissue dysplasia

10.1063/5.0037164 ◽

2020 ◽

Author(s):

A. V. Akimova ◽

V. A. Mironov ◽

T. F. Mironova ◽

A. I. Milashchenko

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Connective Tissue ◽

Noninvasive Diagnostics ◽

Connective Tissue Dysplasia

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Analysis of Torque Ripples of an Induction Motor Taking into Account a Inter-Turn Short-Circuit in a Stator Winding

Energies ◽

10.3390/en13143626 ◽

2020 ◽

Vol 13 (14) ◽

pp. 3626 ◽

Cited By ~ 1

Author(s):

Wojciech Pietrowski ◽

Konrad Górny

Keyword(s):

Early Stage ◽

Short Circuit ◽

Torque Ripple ◽

Drive System ◽

Electrical Machines ◽

Stator Winding ◽

Permanent Magnet Synchronous Machines ◽

Noninvasive Diagnostics ◽

Drive Systems ◽

Commercial Applications

Despite the increasing popularity of permanent magnet synchronous machines, induction motors (IM) are still the most frequently used electrical machines in commercial applications. Ensuring a failure-free operation of IM motivates research aimed at the development of effective methods of monitoring and diagnostic of electrical machines. The presented paper deals with diagnostics of an IM with failure of an inter-turn short-circuit in a stator winding. As this type of failure commonly does not lead immediately to exclusion of a drive system, an early stage diagnosis of inter-turn short-circuit enables preventive maintenance and reduce the costs of a whole drive system failure. In the proposed approach, the early diagnostics of IM with the inter-turn short-circuit is based on the analysis of an electromagnetic torque waveform. The research is based on an elaborated numerical field–circuit model of IM. In the presented model, the inter-turn short-circuit in the selected winding has been accounted for. As the short-circuit between the turns can occur in different locations in coils of winding, computations were carried out for various quantity of shorted turns in the winding. The performed analysis of impact of inter-turn short-circuit on torque waveforms allowed to find the correlation between the quantity of shorted turns and torque ripple level. This correlation can be used as input into the first layer of an artificial neural network in early and noninvasive diagnostics of drive systems.

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Novel application of three-dimensional HDlive imaging in prenatal diagnosis from the first trimester

Journal of Perinatal Medicine ◽

10.1515/jpm-2014-0157 ◽

2015 ◽

Vol 43 (2) ◽

Cited By ~ 5

Author(s):

Ritsuko Kimata Pooh ◽

Asim Kurjak

Keyword(s):

Human Development ◽

New Technology ◽

Three Dimensional ◽

First Trimester ◽

High Definition ◽

Noninvasive Diagnostics ◽

Anatomy And Physiology ◽

Early Human Development ◽

2D Ultrasound ◽

Early Human

AbstractRecent development of three-dimensional (3D) high definition (HD) ultrasound has resulted in remarkable progress in visualization of early embryos and fetuses in sonoembryology. The new technology of HDlive assesses both structural and functional developments in the first trimester with greater reliably than two-dimensional (2D) ultrasound. The ability to visualize not only fetal face, hands, fingers, feet, and toes, but also amniotic membranes, is better with volumetric ultrasound than 2D ultrasound. In this article, detailed and comprehensive structures of normal and abnormal fetuses depicted by 3D HDlive are presented, including various faces of Down’s syndrome and holoprosencephaly, as well as low-set ear and finger/toe abnormalities from the first trimester. Three-dimensional HDlive further “humanizes” the fetus, enables detailed observation of the fetal face in the first trimester as shown in this article, and reveals that a small fetus is not more a fetus but a “person” from the first trimester. There has been an immense acceleration in understanding of early human development. The anatomy and physiology of embryonic development is a field where medicine exerts greatest impact on early pregnancy at present, and it opens fascinating aspects of embryonic differentiation. Clinical assessment of those stages of growth relies heavily on 3D/four-dimensional (4D) HDlive, one of the most promising forms of noninvasive diagnostics and embryological phenomena, once matters for textbooks are now routinely recorded with outstanding clarity. New advances deserve the adjective “breathtaking”, including 4D parallel study of the structural and functional early human development.

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Frequency of combined hepatic and pancreatic steatosis

Pancreatology ◽

10.1016/j.pan.2021.05.294 ◽

2021 ◽

Vol 21 ◽

pp. S110

Author(s):

N. Byelyayeva ◽

N. Gubergrits ◽

G. Lukashevich

Keyword(s):

Pancreatic Steatosis

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Mobile Health (mHealth) and Advances in Noninvasive Diagnosis of Anemia: An Overview

International Journal of Nutrology ◽

10.1055/s-0040-1716497 ◽

2020 ◽

Vol 13 (02) ◽

pp. 042-047

Author(s):

Thiago Mazzu-Nascimento ◽

Danilo Nogueira Evangelista ◽

Obeedu Abubakar ◽

Emanuel Carrilho ◽

Diego Furtado Silva ◽

...

Keyword(s):

Mobile Health ◽

Public Health Problem ◽

Noninvasive Diagnostics ◽

Non Invasive ◽

Palpebral Conjunctiva ◽

Unified Health System ◽

Bone Marrow Disease ◽

Video Frames ◽

The Government ◽

The Impact

AbstractAnemia is a public health problem that can have different causes, such as iron deficiency, vitamin deficiency, inflammation, hemolytic anemias, and anemias associated with bone marrow disease. Anemia shows a decrease in the concentration of hemoglobin, a pigmented molecule in the erythrocytes. The objectives of this review were to highlight the impact of nutritional factors on morbidity and mortality caused by anemia and to present different non-invasive approaches that use a smartphone to analyze hemoglobin levels to detect anemia. According to the records of the Brazilian Unified Health System (SUS, in the Portuguese acronym), ∼ 440,000 people checked in hospitals due to anemia between January 2015 and April 2020, with 215,000 deaths. The government spent ∼ 294 million Brazilian Reais (more than 50 million US dollars) on anemia hospitalization cases during this period. There is a worldwide search to provide noninvasive diagnostics and mobile health (mHealth) tools to help diagnosing anemia. The smartphone appears to be a viable device to detect anemia by a camera with colorimetric analysis of images providing a quantitative, instantaneous, and noninvasive result. These images can be obtained as a photograph or extracted from video frames. The review presents three different methods of detecting anemia using a smartphone: i) photoplethysmograph from video obtained from the tip of the index finger, ii) photo of the palpebral conjunctiva, and iii) fingernail photo app. Therefore, it seems urgent that these approaches may be applied in routine clinical diagnosis to allow remote, needy, low-tech locations to have access to anemia screening.

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