Humanities & Social Sciences • Science • Technology • Weekly Selection
A predicted collision between pair of black holes The prediction late last year of a collision between a pair of supermassive black holes in a galaxy about 3.5 billion light-years from Earth has gotten support from a new study by scientists at Columbia University. Last year, scientists noticed a flickering pulse from the galaxy’s quasar […]
The term epigenetics refers to heritable changes in gene expression (active vs. inactive genes) that does not involve changes to the underlying DNA sequence. It results in change in phenotype without a change in genotype. An easily comprehensible example are identical twins: since they develop from a single fertilized egg, they have the same genome […]
Tracking back human civilization there are evidences of dog domestication as far as 10,000 years ago. During this time, the ancient wolves’ genome evolved to give rise to the domestic dog that gradually adapted to human habitat as many organic functions were selected in detriment of others. Dogs have similar circadian rhythms, have adapted to […]
The last advances in genetics and genomics are leading a change in the paradigm about how to treat diseases. Epigenetics is the science field that studies how gene expression is regulated. Several modifications on the genes such as DNA-methylation, histone-acetylation or microRNA (miRNA) regulation are considered to be the main responsible in controlling gene expression […]
Nowadays there are still people that believe in destiny. However the scientific community more and more is bringing light to that subject showing that although the genetic material could program ourselves to suffer some pathologies, the day-to-day experiences are the ones that lead us towards a healthy or pathological aging. And how is that? Our […]
Think on a cell, it is alive and, among other things, it lives to reproduce itself. The paradigm of cell division is the mitosis, a wonderful dance orchestrated to equitably distribute the possessions of the mother cell: molecular structures, machinery and, especially, the genetic material. Prior to distribute, a good mother always amasses a fortune […]
How are we like we are? What defines our mind, our character, and our behaviour? Men made themselves these questions in all ages of humanity. From the age of myths to the age of science the answers have been very many. We do not have an adequate answer yet, maybe never. However, the rise of […]
Since the emergence of the microscope in the early seventeenth century, many claimed its invention, but many more have tried to improve it. Many problems have been resolved on the way, allowing us to poke directly with our own eyes about the heart of the living or inert matter as far as optical physics allows […]