EFFECT OF CHRONIC ADMINISTRATION OF LOW DOSES OF POLYPEPTIDES OF CATTLE CEREBRAL CORTEX AND METHIONYL-GLUTAMYL-HISTIDYL-PHENYLALANYL-PROLYL-GLYCYL-PROLINE ON BEHAVIORAL RESPONSES OF RAT OFFSPRING.

In the modern world, anyone is susceptible to the effects of stress, regardless of age, gender, culture, and social status. Stress at an early age accelerates long-term changes in the functional properties underlying emotional perception and therefore may alter the stress response later in life. Unfortunately, the interdisciplinary approach in stress research emphasised the study of stress phenomenon in the development of this or that pathology or manifestation of appropriate reactions under the influence of this or that factor, i.

Hydrogen Bond-Induced Activation of Photocatalytic and Piezophotocatalytic Properties in Calcium Nitrate Doped Electrospun PVDF Fibers.

In this study, polyvinylidene fluoride (PVDF) fibers doped with hydrated calcium nitrate were prepared using electrospinning. The samples were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), optical spectroscopy, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), Raman, and photoluminescence (PL) spectroscopy. The results are complementary and confirm the presence of chemical hydrogen bonding between the polymer and the dopant.

Piezo-Enhanced Photocatalytic Activity of the Electrospun Fibrous Magnetic PVDF/BiFeO Membrane.

Creating stimulus-sensitive smart catalysts capable of decomposing organic dyes with high efficiency is a critical task in ecology. Combining the advantages of photoactive piezoelectric nanomaterials and ferroelectric polymers can effectively solve this problem by collecting mechanical vibrations and light energy. Using the electrospinning method, we synthesized hybrid polymer-inorganic nanocomposite fiber membranes based on polyvinylidene fluoride (PVDF) and bismuth ferrite (BFO).

[Influence of age factor and age-associated predictors on remote results of coronary artery bypass grafting].

This study was undertaken to analyse long-term survival and its predictors, depending on age of patients who underwent isolated coronary aortic bypass grafting. Our study included a total of 177 consecutive patients operated on during 2014. For the purpose of statistical analysis, the patients were divided into two groups according to their age at the time of surgery: <60 years (n=96) and >60 years (n=81).