39 research outputs found
PINK. Representations of Women and Women Graphic Designers
Two were the main aims of PINK. On the one hand, to show the representations of women curated by graphic designers (both male and female) from the golden age of Italian design (approximately between the 40s and early 70s). On the other, to reflect on the contribution of the women designers in a period conditioned by stereotypes and preconceptions about female roles in a social context subject to significant changes. The exhibition and the related discussion panel intended to question and argue on the role of history, sources and gender studies; on the presence of women designers in the profession in the post-WWII period and their absences in the great histories of design. And on how visual artefacts of design return a possible reading of society and its complexity, allowing different and richer interpretations of our history
Antagonistic activity of Lactobacillus acidophilus ATCC 4356 on the growth and adhesion/invasion characteristics of human Campylobacter jejuni.
The aim of this research was to determine the
potential probiotic activity of Lactobacillus acidophilus
ATCC 4356 against several human Campylobacter jejuni
isolates. The ability to inhibit the pathogen’s growth was
evaluated by co-culture experiments as well as by antimicrobial
assays with cell-free culture supernatant (CFCS),
while interference with adhesion/invasion to intestinal
Caco-2 cells was studied by exclusion, competition, and
displacement tests. In the co-culture experiments L. acidophilus
ATCC 4356 strain reduced the growth of C. jejuni
with variable percentages of inhibition related to the contact
time. The CFCS showed inhibitory activity against
C. jejuni strains, stability to low pH, and thermal treatment
and sensitivity to proteinase K and trypsin. L. acidophilus
ATCC 4356 was able to reduce the adhesion and invasion
to Caco-2 cells by most of the human C. jejuni strains.
Displacement and exclusion mechanisms seem to be the
preferred modalities, which caused a significant reduction
of adhesion/invasion of pathogens to intestinal cells. The
observed inhibitory properties of L. acidophilus ATCC
4356 on growth ability and on cells adhesion/invasion of
C. jejuni may offer potential use of this strain for the
management of Campylobacter infections
Cardiac response to hemodialysis with different cardiovascular tolerance: heart rate variability and QT interval analysis.
A therapy-specific worsening of cardiovascular stability during bicarbonate dialysis (BD) with respect to acetate-free biofiltration (AFB) have been previously reported. We further investigated the impact of the 2 therapies on electrocardiographic parameters in order to gain novel insight into the cardiac responses. Holter ECG acquired during hypotension-free sessions (12 BD + 12 AFB) were retrospectively analyzed. R-R intervals were extracted from ECG recordings. An autoregressive spectral technique was used to compute low- and high-frequency (LF and HF) components of heart rate variability (HRV). QT interval duration was measured with a computer-assisted technique and corrected for HR. In BD the LF component of HRV after an initial increase was slowly depressed with respect to AFB (p < 0.05). QT duration showed a significant (p < 0.01) hemodialysis-induced reduction. QT shortening was more pronounced (p < 0.05) in BD than in AFB (-31 vs. -10 ms), even after correction for HR (p < 0.05). Cardiac electrical activity is significantly affected by the hemodialysis technique. The decrease in the LF component of HRV and the QT shortening are coherent with the worse cardiovascular tolerance observed in BD and with the hypothesis of an enhanced production of endogenous nitric oxide