We cloned the pheromone precursor genes of Podospora anserina in order to elucidate their role in the biology of this fungus. The mfp gene encodes a 24-amino-acid polypeptide finished by the CAAX motif, characteristic of fungal lipopeptide pheromone precursors similar to the a-factor precursor of Saccharomyces cerevisiae. The mfm gene encodes a 221-amino-acid polypeptide, which is related to th...

BACKGROUND Crohn's disease (CD) is associated with complex pathogenic pathways involving defects in apoptosis mechanisms. Recently, mesenteric adipose tissue (MAT) has been associated with CD ethiopathology, since adipose thickening is detected close to the affected intestinal area. However, the potential role of altered apoptosis in MAT of CD has not been addressed. AIMS To evaluate apoptosi...

The purpose of this review is to characterize the preoperative assessment of meniscal allograft transplantation (MAT) candidates, to detail MAT surgical techniques, and to evaluate current clinical outcome data on MAT. The MAT candidate is typically less than 50 years old and has a history of knee injury, previous meniscus surgery, and persistent pain. Physical exam generally reveals knee pain ...

In solfataric fields in southwestern Iceland, neutral and sulfide-rich hot springs are characterized by thick bacterial mats at 60 to 80 degrees C that are white or yellow from precipitated sulfur (sulfur mats). In low-sulfide hot springs in the same area, grey or pink streamers are formed at 80 to 90 degrees C, and a Chloroflexus mat is formed at 65 to 70 degrees C. We have studied the microbi...

Incompatibility systems in which individuals bearing identical alleles reject each other favor the maintenance of a diversity of alleles. Mushroom mating type loci (MAT) encode for dozens or hundreds of incompatibility alleles whose loss from the population is greatly restricted through negative frequency selection, leading to a system of alleles with highly divergent sequences. Here, we use DN...

Våren 1999 handlade Folkkultursarkivets årliga frågelista om mathushållning med tyngdpunkt på dagens förhållanden. Frågelistan "Vad har vi för mat i dag?" väckte stort intresse och sammanlagt kom det in 161 svar som omfattar drygt 1000 sidor text. Åldersspridningen var stor. De äldsta svarade är födda 1910-talet, de yngsta 1990-talet. Därmed återspeglas så gott hela 1900-talet frågesvaren efter...

A wrong model can lead to a wrong conclusion. The failure to capture inflation dynamics has made the standard New Keynesian framework of monetary policy analysis prone to such a critique. In this paper, we investigate optimal monetary policy using a model that can capture the observed inflation persistence. The model, which we call the dual stickiness model, integrates sticky prices and sticky ...