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Cells with many of the features of mast cells develop in cultures of normal mouse hematopoietic cells containing mast cell growth factor (1-8), an activity similar or identical to interleukin 3 (IL-3) ~ (9-11), histamine-producing cell-stimulating factor (9), or P cell-stimulating factor (12-14). Large numbers of these cells (>10 s) can be generated as… (More)

We introduce the notions of Heegaard splittings and thin multiple Heegaard splittings of 1-submanifolds in compact orientable 3-manifolds, which are generalizations of those of bridge decompositions and thin positions. We show that either a thin multiple Heegaard splitting of 1-submanifold T is also a Heegaard splitting with minimal complexity or the… (More)

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a r t i c l e i n f o a b s t r a c t MSC: 57M25 Keywords: Link diagram Reidemeister… (More)

- CHUICHIRO HAYASHI, MIWA HAYASHI, Akio Kawauchi
- 2011

Let D(p, q) be the usual knot diagram of the (p, q)-torus knot; that is, D(p, q) is the closure of the p-braid (σ −1 1 σ −1 2 · · · σ −1 p−1) q. As is well-known, D(p, q) and D(q, p) represent the same knot. It is shown that D(n + 1, n) can be deformed to D(n, n + 1) by a sequence of {(n − 1)n(2n − 1)/6} + 1 Reidemeister moves, which consists of a single RI… (More)

- MIWA IWAKURA, CHUICHIRO HAYASHI
- 2008

We determine all the Q-fundamental surfaces in (p, 1)-lens spaces and (p, 2)-lens spaces with respect to natural triangulations with p tetrahedra. For general (p, q)-lens spaces, we give an upper bound for elements of vectors which represent Q-fundamental surfaces with no quadrilateral normal disks disjoint from the core circles of lens spaces. We also give… (More)

- N Takeuchi, Y Yamamura, Y Katayama, C Hayashi, K Uchida
- Experimental gerontology
- 1976

Let M be a 3-manifold with a regular cell decomposition {B 3 k }. In [B], the first author shows: If M contains an essential lamination L 0 , then there is an essential lamination L in M , which is in normal form with respect to the cell decomposition {B 3 k }. In the same paper, by using the result above, he proposes a procedure for determining whether a… (More)

- T. SONODA, Y. KANAYAMA, +4 authors Y. KITAMURA
- 1984

Peritoneal mast cells and macrophages are commonly used to study functions of these two types of cells (1-3). Although many investigators have studied the production of peritoneal macrophages both in vivo (4-6) and in vitro (7, 8), only a few investigators have taken an interest in production of peritoneal mast cells (9-11). Both mast cells and macrophages… (More)

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