![]() All types of hematopoietic cells, including both myeloid and lymphoid lineages, are created in bone marrow however, lymphoid cells must migrate to other lymphoid organs (e.g. Human marrow produces approximately 500 billion blood cells per day, which join the systemic circulation via permeable vasculature sinusoids within the medullary cavity. Bone marrow comprises approximately 5% of total body mass in healthy adult humans, such that a man weighing 73 kg (161 lbs) will have around 3.7 kg (8 lbs) of bone marrow. In adult humans, bone marrow is primarily located in the ribs, vertebrae, sternum, and bones of the pelvis. It is composed of hematopoietic cells, marrow adipose tissue, and supportive stromal cells. In birds and mammals, bone marrow is the primary site of new blood cell production (or haematopoiesis). Our product offerings include millions of PowerPoint templates, diagrams, animated 3D characters and more.Bone marrow is a semi-solid tissue found within the spongy (also known as cancellous) portions of bones. is brought to you by CrystalGraphics, the award-winning developer and market-leading publisher of rich-media enhancement products for presentations. ![]() Then you can share it with your target audience as well as ’s millions of monthly visitors. We’ll convert it to an HTML5 slideshow that includes all the media types you’ve already added: audio, video, music, pictures, animations and transition effects. You might even have a presentation you’d like to share with others. And, best of all, it is completely free and easy to use. ![]() Whatever your area of interest, here you’ll be able to find and view presentations you’ll love and possibly download. It has millions of presentations already uploaded and available with 1,000s more being uploaded by its users every day. is a leading presentation sharing website. Introduce a local perturbation which change the Z2 spin liquid on a cylinder 2-fold degenerate.Half-odd integer spins versus integer onesĪ toy model for a topological quantum-bitG.Open question spin-1/2-Heisenberg model on the.A Realistic Spin Liquid MSE on triangular latt.Quantum phases Valence Bond Crystals and Spin.Susceptibility at intermediate temperatures (C. A very tiny spin gap if any (Ramirez et al, Bono,.Low lying local singlet excitations (Ramirez et.Some features are very much alike the spin-1/2.Very large extensive entropy from singlets atĪt low temperature Cv is insensitive to large.A gap lt 10 -3 in the singlet sector (if any)!.The Heisenberg model on the kagomé lattice Quantum ground-state and first excitations of LatticesHalf integer odd spins versus integerĬlassical Heisenberg Hamiltonian on the kagoméĪn infinite number of soft modes, an infinite T0ĭegeneracy Same property on the checkerboard Model on the kagomé checkerboard and pyrochlore Quantum behavior of models with infinite localĭegeneracy in the classical limit Heisenberg Rokhsar Kivelson has no real spin liquid phase On the square lattice the original model due to Quantum numbers 4 unconnected topological ![]() Parities of winding numbers (?x, ?y) are good Topological degeneracy in SRRVB Spin Liquids MSE Spin Liquid Spin gap Topological degeneracy
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