Moses and the Dragon; artist unknown, late 19th century, Iran (source)
The geographic coordinates of Karbala, Iraq
Golbadan : Rose-body
These are BeWo cells — a cell line established from a choriocarcinoma, or cancer of the cells of the trophoblast. A researcher in my lab who works on the neonatal Fc receptor wanted to know whether certain cell lines expressed the receptor. Per the Western Blots that I’ve been doing with another lab member, BeWo cells do express the neonatal Fc receptor, as do several endothelial and monocytic cell lines.
The Iranians Issa and Abdullah Omidvar were apparently the first people to create a film of the Hajj, which they did while on pilgrimage in 1959.
The brothers hid their cameras beneath their ihram clothing in order to film the footage; they even attempted to pass off the clanking of the cameras as sounds made by their surgically installed “metallic intestines.”
The short documentary can be downloaded from the Omidvar brothers’ website.
Walid Siti, drawings from the series Precious Stones, 1997-2010 (source).
In 2008, Siti wrote: “Throughout world history and in many different societies, stone objects have served as focal points, their wealth of symbolic meaning drawing people together and reinforcing social codes. Over the last ten years I have worked on Precious Stones, a series of drawings on paper in which I have tried to explore stones from this perspective.
Prehistoric stones and natural rocks as well as carved stones in buildings have profound meanings that occasionally surpass original purpose. They become metaphors with political or spiritual associations, such as black stone of Mecca, the pyramids, various monuments and memorials, tombs, triumphal arches, and so on. The stone is universal in its symbolic role, which crosses cultures, time and place.
Precious Stones is an attempt to convey the relationships these sacred stones have with their surroundings. I place them in the centre of the drawing, where they radiate a circular motion around themselves, indicating energy and change, like the circumbulations performed around the Ka’aba or the movements of crowds in various places of veneration.” *
Paenibacillus vortex colonial responses to non-lethal stresses, in "Bacterial linguistic communication and social intelligence" by Eschel Ben-Jacob, Israela Becker, Yoash Shapira, and Herbert Levine, Trends in Microbiology 12:8, August 2004:
"(A) The response of a colony of P.vortex to septrin, which inhibits synthesis of folic acid and suppresses cell reproduction, is shown [after 2 days of growth]. On the basis of comparisons of model simulations with colonial patterns and microscope observations, it was proposed that, in response to septrin, bacteria enhance their cooperation by intensifying chemotactic attraction to form larger vortices; they also elevate repulsive chemotactic responses to signals emitted by the bacteria behind the vortices, which helps push the large vortices faster away from the stress they detect (not ‘knowing’ that there is antibiotic ahead as well). (B) Colonial development under metabolic stress due to nutrient deficiency is shown [after 4 days of growth] – no antibiotic, but half the level of nutrients. We emphasize the abundance of small vortices in this case and slower colonial expansion compared with (A). These differences further support the idea of enhanced cooperation in the presence of septrin. (C) Growth was started from a cluster of bacteria taken from a colony grown in the presence of septrin. Comparison of (C) and (A) illustrates colonial memory and ‘learning from experience’ (growth conditions are the same in both). Memory can be erased by growing the bacteria on substrate with no antibiotic or in LB growth media. (D) Disorganized colonial development in response to ampicillin (which distorts cell wall structure) is shown. It might appear that ampicillin simply impairs communication-based coordination. However, colonial learning from experience can lead, under some conditions, to faster expansion in the presence of ampicillin.
In [the above figure], we show two different colonial pattern responses to non-lethal stress of two different kinds of antibiotics: septrin, a suppressor of cell reproduction, which might enhance communication; and ampicillin, a distorter of cell wall structure, which might impair cell communication. In both cases, during a subsequent encounter with the same antibiotic, the bacteria respond more efficiently; however, this effect is erased if they are exposed to neutral conditions (i.e. growth on plates in the absence of antibiotic or in LB media) in between stress encounters. It appears that the bacteria can generate an erasable collective memory, as if to learn from their experience.”
See also: Smart bacteria