About Marilisa Falzone

Master's degree in biology, specialization in biomedical and molecular sciences. Born in Sicily, he lived in different places along the boot, first for study and then for work. Teaching is in its past and perhaps its future. He is currently working as a fellow for the Environment and Health project. She likes to write about all the nuances of biology, of other scientific curiosities and nonsense (but the latter keeps them for himself).
Marilisa Falzone

The Egyptian blue, between art and science

2021-07-16T21:37:24+02:005 April 2020|Categories: Curiosity|Tags: , , |

The first tubes of paint appeared around the 18th century. Before then, the artists independently prepared the colors they needed, studying the materials and perfecting the procedures. In ancient Egypt, the pigments were extracted from minerals such as malachite (verde), the pyrolusite (nero), la dolomite (White), or from lands such as ocher (yellow and red). The pigments were then amalgamated with a binder, such as egg white or gum arabic. The Egyptians didn't just extract what they found in nature, but they came to produce, more than 5000 Years ago, the first known artificial color: the Egyptian blue! [...]

Traveler's diarrhea

2021-07-16T21:39:19+02:0014 June 2019|Categories: Food and Health|Tags: , , |

It is a gastrointestinal disorder due to food poisoning. It manifests itself with an increased frequency of bowel movements that lead to three or more evacuations of poorly formed stools per day, generally during a trip abroad, often in a developing country. What are the etiological agents? In more than half of the cases the cause is not investigated because the symptoms disappear before returning home. When, on the other hand, the causative agent is sought, these bacteria are almost always found: Enterotoxic Escherichia coli is the most common bacterium responsible for traveler's diarrhea whose infection occurs [...]

Microorganisms at work (of art)

2021-07-17T15:37:56+02:0018 January 2019|Categories: Curiosity|Tags: , , , , |

Someone says that "What does not kill strengthens"! Well, this ancient proverb can be an adequate opening to tell the relatively recent partnership between art and microbiology. Robert Ryman, Twin (1966) https://www.wikiart.org/en/robert-ryman/twin-1966 Malgrado si tenda quasi sempre ad associare i batteri ad un pericolo, in fact many bacterial species not only do not kill, but they are even useful for "fortifying" our cultural heritage. È vero che alcune costruzioni e opere d’arte, of various kinds and invoices, they can be negatively affected by various microbial activities; however it is equally true, than from those same microbial activities, altre opere di materiale diverso [...]

Engage the PRIMAvera: watch out for the epiphysis and melatonin

2021-07-16T21:44:19+02:002 May 2018|Categories: Medicine and Research|Tags: , , , |

With the arrival of spring, nature awakens and takes on color, but often the only colors we would like to see are those of our pajamas! Maybe you too, like many, in this period you can not get into the first gear and you do not know who to blame! Well, the reasons are varied and are also linked to environmental factors, such as the increase in hours of light and the rise in temperature, which induce energetically wasteful responses of our body. One of the architects of the lack of regularity in the sleep / wake cycle in the first days of summer, is the work done by the epiphysis and melatonin. https://it.wikipedia.org/wiki/Ghiandola_pineale#/media/File:Pineal_gland.png L’epifisi è [...]

Tuberculosis is not a thing of the past

2021-07-16T21:51:23+02:0024 March 2018|Categories: Medicine and Research|Tags: |

It was the 24 March of 1882 and Robert Koch announced to the scientific community the discovery of the bacterium responsible for tuberculosis (TBC) called Mycobacterium Tubercolosis, also known as Koch's Bacillus. It was a sensational discovery that marked the history of this disease, feared since ancient times, which reached epidemic proportions in the eighteenth and nineteenth centuries. The 24 World Tuberculosis Day is celebrated each year in March, not only to remember Koch's important discovery, but to promote the knowledge of this disease which does not belong to the past! Even today, tuberculosis is among the top ten causes of death in [...]

Not all the "fat" comes to harm

2021-07-16T21:53:14+02:0027 February 2018|Categories: Medicine and Research|Tags: , , , |

How many of us have complained about their adipose tissue over the course of their lives? Denigrated and disguised as best you can, actually this fabric, commonly called "flab" or "fat", it is full of many surprises! Gordos campesinos... guerrillas in Botero's eyes (eyes quite slanted) (at Sol Robayo, https://www.flickr.com/photos/solrobayo/4460131669) Adipose tissue is the largest energy reserve in our body. In addition to this, other functions such as the following are well known: Support and protection (constituting a sort of "scaffolding" for many organs and acting as a "shock absorber" against shocks); thermogenesis (regolando la temperatura corporea [...]

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