Two pieces of studlovite - Eocene amber from Študlov (Southeast Moravia, Czech Republic) were investigated. To arrive at a more detailed description, attenuated total reflection Fourier transform infrared spectroscopy, Raman spectroscopy, pyrolysis-gas chromatography/mass spectrometry, and gas chromatography-mass spectrometry were used. Both studlovite samples revealed signs of the same plant source, with higher polymerisation and a higher degree of maturation of the fossilized matter. Despite their close spectral resemblance, they differed in their detailed chemical composition, and in structure. Layering of one of the pieces studied showed how the resin was built and what impact the process had on the chemical composition of the amber. Characterization of the organic matter was completed with an analysis of trace elements in amber samples using scanning electron microscope combined with elemental distribution analysis (SEM/EDAX). The results demonstrated the paleoenvironmental conditions that occurred in the plant during resin exudation following wounding.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.saa.2019.02.058 | DOI Listing |
Int J Med Microbiol
January 2025
Global Vaccines, and Anti-infectives Medical Affairs, Pfizer Inc., 1 Portland Street, Cambridge, MA 02139, USA. Electronic address:
Introduction: Lyme borreliosis (LB), an infection caused by Borrelia burgdorferi sensu lato (Bbsl), is the most common tick-borne disease in Europe. To further characterize the LB burden in the Czech Republic, we conducted a seroprevalence study and estimated the incidence of symptomatic Bbsl infections.
Methods: Anti-Bbsl IgM and IgG antibodies were detected in sera collected from the adult population in 2011 -2012 by enzyme-linked immunosorbent assay and immunoblot tests at the National Reference Laboratory.
Parasit Vectors
December 2024
Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 61242, Brno, Czech Republic.
Background: Borrelia miyamotoi and Borrelia burgdorferi sensu lato (s.l.) are important zoonotic agents transmitted by Ixodes ricinus ticks, which are widely distributed across Central Europe.
View Article and Find Full Text PDFHeliyon
October 2024
Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Zluty Kopec 7, 656 53, Brno, Czechia.
Introduction: Malignant diseases challenge clinicians to balance treatment intensity and patient quality of life. Regular physical activity positively impacts mental and physical health, benefiting sleep patterns, heart rate, and overall health. Moreover, telehealth physical exercise training represents a viable option for maintaining intrinsic capacity.
View Article and Find Full Text PDFCureus
September 2024
Pediatric and Preventive Dentistry, Government Dental College and Hospital, Jamnagar, IND.
Born in Freiberg, Moravia (now the Czech Republic), Austrian psychiatrist Sigmund Freud was the forerunner of psychoanalysis, a ground-breaking approach to understanding the human mind. Originally studying neurology at the University of Vienna, Freud soon became fascinated with the psychological origins of mental illness. He developed theories on repression, the unconscious mind, and the significance of dreams because he saw dreams as windows into hidden conflicts and impulses.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!