Drosophila Gastrulation: Identification of a Missing Link

Drosophila Gastrulation: Identification of a Missing Link

Drosophila gastrulation serves as a model system to elucidate the genetic and molecular mechanisms involved in morphogenetic movements. The ligand of the FGF receptor Heartless, which is involved in mesoderm movement, has now been isolated and shown to be a link between a morphogen gradient and cell behavior.

Fiscal Space Assessment: A Missing Link in Financing Management of Iran’s Health System

Fiscal Space Assessment: A Missing Link in Financing Management of Iran’s Health System Nader Jahanmehr1,2, Soheila Damiri3*, Reza Goudarzi4, Zhaleh Abdi5 1 School of Management and Medical Education, Shahid Beheshti University of Medical Sciences, Tehran, Iran 2 Prevention of Cardiovascular Disease Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran 3 Department of...

Identification: the missing link between joint attention and imitation?

In this paper we outline our hypothesis that human intersubjective engagement entails identifying with other people. We tested a prediction derived from this hypothesis that concerned the relation between a component of joint attention and a specific form of imitation. The empirical investigation involved "blind" ratings of videotapes from a recent study in which we tested matched children with...

Embryonic PCNA: a missing link?

PCNA, the processivity factor of the eukaryotic replicative DNA polymerase [1], is the functional homolpgue of the [3 subunit of Escherichia coli DNA polymerase III holo-enzyme [2,3]. Biochemical studies have shown that the E. coli 3 subunit acts as a sliding clamp on duplex DNA; it has a ring shape that encircles DNA and it binds directly to Pol III, tethering it to DNA to achieve highly proce...

loving and humane care: a missing link in nursing