German embryologist Viktor Hamburger [4] came to the US in 1932 with a fellowship provided by the Rockefeller Foundation [5]. Hamburger started his research in Frank Rattray Lillie?s laboratory at the University of Chicago [6]. His two-year work on the development of the central nervous system [7] (CNS) in chick [8] embryos was crystallized in his 1934 paper, ?The Effects of Wing Bud Extirpatio...

We show that the classical Hamburger moment problem can be included in the spectral theory of generalized indefinite strings. Namely, we introduce the class of Krein–Langer strings and show that there is a bijective correspondence between moment sequences and this class of generalized indefinite strings. This result can be viewed as a complement to the classical results of M. G. Krein on the co...

The phonological priming effect may reflect basic processes in spoken word perception and has thus been a central topic of recent research. In this journal, Hamburger and Slowiaczek (1996) reported phonological priming data collected in a shadowing task. They replicated a prior study (Slowiaczek & Hamburger, 1992), but added new procedures to minimize bias. After observing inhibitory priming in...

We devote this paper to Hamburger-type weighted shifts. give first an affirmative answer a problem concerning subnormality of the Aluthge transform Hamburger moment measures with finite support. also extend notion “the jumping flatness property” introduced recently in [11] for shifts and provide several results related representing measure such

background and objectives: the food product known as the ‘hamburger’ plays a crucial role in people’s nutrition and the diversity of the food they consume. the reasons for our study include the area under cultivation, the remarkable amount of protein in chickpeas and lentils, as well as the public interest in tending to meat products, especially hamburgers. materials and methods: in this study,...

The canonical solutions of the truncated Hamburger moment problem (both in the classical and degenerate cases) are found. The Nevanlinna theorem which provides the noncanonical solutions of the truncated Hamburger problem is also rederived in the framework of the operator approach.

In vitro chondrogenesis is possible in the chick embryo from stage 4 of Hamburger and Hamilton (1951), only 18-19 hours of incubation, before somite formation. In stage 4 of Hamburger and Hamilton (1951) the chondroblasts are placed laterally to the primitive streak and notochord cells are not necessary for cartilage differentiation.