A Few Things We Do Not Know About Stars and Model Atmospheres

A Few Things We Do Not Know About Stars and Model Atmospheres

We list a few things that we do not understand about stars and that most people ignore. These are all hard problems. We can learn more cosmology by working on them to reduce the systematic errors they introduce than by trying to derive cosmological results that are highly uncertain. 1. Optimism and Pessimism People sometimes complain that I am too pessimistic and that I criticize too much. In f...

Do We Know What We Do not Know? A Response to Celine Bonnet

Molecular approaches to diagnosis of invasive aspergillosis what we know and what we do not know.

Invasive aspergillosis (IA) are a major complication in immunocompromized patients where can be serious and rapidly fatal. Early diagnosis and early appropriate antifungal treatment is important in reducing mortality and morbidity. But despite many efforts to develop detection methods, the diagnosis of IA still remains challenging and current conventional methods are limited for adequate diagno...

do we know what we do not know? a response to celine bonnet

What We Do Not Know About Cells

The intracellular reactions of E.coli chemotaxis constitute one of the bestunderstood behavioral responses. We know the principal proteins responsible, their structures and biochemical properties and how they enable the bacterial cell detect and respond to attractants and repellents[1]. Numerous computer simulations have been developed that reproduce essential features of the response[2, 3]. In...