1.1 The Riemann integral on the real line Let [a, b] be a compact interval of the real line and f : [a, b] → R be a (bounded) function. For the Riemann-integral of f over [a, b] one defines lower and upper (Darboux) sums with respect to a subdivision p of the form a = k0 < k1 < . . . < kn = b: S(f, p) := ∑n i=1(ki − ki−1) inf {f(x) | ki−1 ≤ x ≤ ki} S(f, p) := ∑n i=1(ki − ki−1) sup {f(x) | ki−1 ...

meningiomas are slow-growing neoplasms which recur locally, their morphologic grading is simple but do not always correlate with patient outcome. the aim of present study is to evaluate the status of progesterone receptor (pr) and proliferation marker ki67 in various grades of meningioma in a group of iranian patients. 78 cases of meningioma were selected from the file of a hospital university....

Each query to failure detector ¬Ωk outputs n− k processes; at least one correct process is eventually never output. The “folklore” sub-Consensus hierarchy conjecture states states that any task not solvable with ¬Ωk requires ¬Ωk−1. This paper disproves this conjecture for symmetric, participation-aware tasks. Consider any sequence (ki) = k1, . . . , kn with ki ≤ ki+1 ≤ ki +1. The agreement task...

The primary purpose of this study was to evaluate the prognostic significance of Ki-67, a cell proliferation-associated antigen, in a large group (n = 674) of axillary node-negative breast cancer cases with long-term follow-up and to correlate Ki-67 antigen expression with S-phase fraction. Ki-67 immunostaining was assessed both semiquantitatively and quantitatively. The statistical analysis fo...

background and aims. vascular endothelial growth factor (vegf) and ki-67 antigen are contributing factors in this process cell proliferation and new blood vessels formation in tumor progression. this study was conducted to examine the relationship between the expression of vegf and ki-67 and gender and age of patients with oral squamous cell carcinoma (oscc). materials and methods. twenty-three...

objective(s) the aim of this study was to evaluate the expressions of two angiogenic immune-markers (cd-31 and vegf), and one proliferative immune-marker (ki-67) in oral pyogenic granulomas (pg), hemangiomas (hem) and inflammatory gingivitis (ig). materials and methods sixty cases of pg, hem and ig (twenty cases each) were examined. immunohistochemical (ihc) staining was performed based on rout...