This review discusses current techniques of corneal transplantation for moderate to advanced keratoconus. The aim of this article is to provide primary eye care practitioners with an overview of two current corneal transplantation modalities, namely penetrating and deep anterior lamellar keratoplasty. The main surgical techniques, the outcome of the procedures, common complications and the prog...

Proof. First suppose that a ∼H b, so that a = bk for some k ∈ H, and let ah (with h ∈ H) be an artibrary element of aH. Then we have ah = bkh = b(kh) ∈ bH, hence aH ⊆ bH. The proof of bH ⊆ aH is similar. Conversely, suppose that aH = bH. Since a ∈ aH = bH we have a = bk for some k ∈ H. Then a−1b = k−1 ∈ H, hence a ∼H b. (d) Prove that the map g 7→ ag is a bijection from H to aH. Proof. Consider...

-Wireless Mesh Networks (WMNs) are the set of wireless nodes that can communicate with each other and forwarding each other’s packets. WMNs are multi-hop networks consisting of routers, gateways and mobile nodes, they aim at guarantee connectivity. They act as a key technology for next generation WMNs due to their low cost and relative ease of deployment they are an attractive paradigm and are ...

The aims of this study were to evaluate the prognostic significance of tumor-infiltrating lymphocytes (TILs) and tumor-associated macrophages (TAMs) in patients with familial ovarian cancer. Clinical and pathological information were retrieved from the Gilda Radner Familial Ovarian Cancer Registry (GRFOCR) in Buffalo, NY. Immunohistochemistry was performed on paraffin-embedded tissue specimens ...

The notes below will serve as the basis for the module lectures to be given on the topics of Jordan form, nonnegative matrices, and Markov chains. As you'll see, most of the proofs have been omitted in the notes. The intention is to sketch the proofs during the lectures, but also to have the students work through some of the details (using references such as those listed at the end of this docu...

Visuelle und elektronische Farbbestimmung im Rahmen der Farbangleichung [1] Berns RS: Billmeyer and Saltzmans principles of color technology. 3rd ed. New York: Wiley (2000). coverage esthetic score after treatment of gingival recession: an interrater agreement multicenter study. AJ: Estimating costs for shade matching and shade corrections of fixed partial dentures for dental technicians in Ger...