sensory neurons in CNS of the leech.

We show the highly non–surprising fact that the Leech lattice gives a sphere covering which is locally least dense among lattice coverings. This gives a first example of a locally optimal lattice covering having a non–simplicial Delone subdivision. Hereby, we in particular answer a question of Dickson posed in 1968. By showing that the Leech lattice is rigid, our answer is even strongest possib...

New efficient algorithm for maximum likelihood soft-decision decoding of the Leech lattice is presented. The superiority of this decoder with respect to both computational and memory complexities, compared to previously published decoding methods is demonstrated. Gain factors in the range of 2-10 are achieved. The Leech lattice has been recently suggested for practical implementation of block-c...

We study a second example of the phenomenon studied in the article “The complex Lorentzian Leech lattice and the bimonster”. We find 14 roots in the automorphism group of the the quaternionic Lorentzian Leech lattice L that form the Coxeter diagram given by the incidence graph of projective plane over F2. We prove that the reflections in these 14 roots generate the automorphism group of L. The ...

Reconstructive microsurgery is performed to reattach, transfer, or transplant body tissues. Venous congestion is a complication that threatens the viability of the affected tissue and is often treated with medicinal leeches. Leech therapy has two phases: active bloodletting and passive bleeding from the leech wound after detachment, which can last for several hours. Unfortunately, the small blo...

INTRODUCTION The medicinal leech, Hirudo medicinalis, has been used in the treatment of many diseases for thousands of years. In Turkey, it is used most commonly in the management of venous diseases of lower extremities. CASE PRESENTATION A 25-year-old Turkish woman presented to our emergency room with bleeding from her left leg. She had been treated for varicose veins in her lower extremitie...

Tujuan dari penelitian ini adalah mendeskripsikan penggunaan prinsip kesantunan berbahasa Geoffrey Leech yang terdapat dalam teks negosiasi karya peserta didik kelas X IPA 3 dan 5 SMA Negeri Brebes tahun pelajaran 2021/2022. Metode digunakan metode deskriptif dengan pendekatan kualitatif. Pengumpulan data tersebut diperoleh menggunakan dokumentasi diikuti teknik lanjutan yaitu catat. Pada hasil...

The Leech lattice and other lattices. This is a corrected (1999) copy of my Ph.D. thesis. I have corrected several errors, added a few remarks about later work by various people that improves the results here, and missed out some of the more complicated diagrams and table 3. Most of chapter 2 was published as " The Leech lattice " , Proc. R. Soc. Lond A398 (365-376) 1985. The results of chapter...