Now showing items 291-300 of 318
Autoradiographic evidence that transport of newly synthesized neuropeptides is directed to release sites in the X-organsinus gland of Cardisoma carnifex
(Springer-Verlag, 1991-05)
Sections of isolated X-organ — sinus gland neurosecretory systems of the crab, Cardisoma carnifex , were studied by light-and electron microscopy with conventional and autoradiographic procedures. The somata only were ...
Size-biased dispersal prior to breeding in a damselfly
(Springer-Verlag, 1990-06)
Dispersal is notoriously difficult to measure, so its potential population consequences are often unknown. If dispersal is density-dependent, it can act in population regulation. Adult damselflies Enallagma boreale (Zygoptera: ...
Localization of the thyrotropin-releasing hormone gene, Trh , on mouse Chromosome 6
(Springer-Verlag, 1995-06)
Towards liver-directed gene therapy: Retrovirus-mediated gene transfer into human hepatocytes
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1991-11)
Liver-directed gene therapy is being considered in the treatment of inherited metabolic diseases. One approach we are considering is the transplantation of autologous hepatocytes that have been genetically modified with ...
Antagonistic pleiotropy, mutation accumulation, and human genetic disease
(Kluwer Academic Publishers; Springer Science+Business Media, 1993-02)
The antagonistic pleiotropy theory of senescence is the most convincing theoretical explanation of the existence of aging. As yet, no locus or allele has been identified in a wild population with the features predicted by ...
Copper-induced expression, cloning, and regulatory studies of the plastocyanin gene from the cyanobacterium Synechocystis sp. PCC 6803
(Kluwer Academic Publishers; Springer Science+Business Media, 1990-10)
Plastocyanin can be detected in Synechocystis sp. PCC 6803 when 3 μM copper is added to the growth medium, BG-11. The plastocyanin gene ( petE ) was cloned from a genomic λ EMBL 3 library by screening with the petE gene ...
Foraging behavior as a determinant of asymmetric competitive interaction between two ant species in a tropical agroecosystem
(Springer-Verlag, 1994-07)
This work is concerned with elucidating competitive interactions between two neotropical ants, Solenopsis geminata and Pheidole radoszkowskii , focusing on their foraging behavior. When released from competition from P. ...
Neurofibromatosis type 1 gene product (neurofibromin) associates with microtubules
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1993-05)
The neurofibromatosis type 1 (NF1) gene was recently identified by positional cloning and found to encode a protein with structural and functional homology to mammalian and yeast GTPase-activating proteins (GAPs). Using ...
Conversion to Ca2+-Independent Form of Ca2+/Calmodulin Protein Kinase II in Rat Pancreatic Acini
(Elsevier, 1994-02-28)
CCK rapidly converted Ca2+/calmodulin kinase II (CaMK II) to a Ca(2+)-independent form with peak action at 30 sec followed by decline to the basal level at 10 min. The threshold concentration of CCK for this action was 30 ...
Identification of genes within the Krd deletion on mouse Chromosome 19
(Springer-Verlag; Springer-Verlag New York Inc., 1999-04)