Reentrant polymer foam materials with negative Poisson's ratios, as described by Lakes (1), are a new class of materials with unique properties. The thermodynamic restriction on the compressibility, K, of an elastic material is that it must be positive for stability. The compressibility is related to the shear modulus, G, and Poisson's ratio, v, by K = 3/2[(1 2v)/G(1+ v)], so v is restricted to...

Results from the analysis of data collected at the Tevatron pp collider at center of mass energies p s = 630 and 1800 GeV collected by the DD and CDF experiments are presented. Measurements of the inclusive production jet cross section, the inclusive dijet mass spectrum, the triple diierential dijet cross section, and the dijet angular distribution are compared to order 3 s QCD predictions.

Previously, we have employed a program (Jtest) to test an hypothesis involving many parameters (multiple constraints). This test, which involves comparing parameter estimates with hypothesized values, is known as a Wald test. We also used the Jtest program to compare two di¤erent estimators in a Hausman test. There is an alternative method for conducting joint tests, which can be implemented ea...

Patient A was a 30-year-old white woman with a longstanding history of primary amenorrhea and infertility. By age 18 the patient had neither menstruated nor demonstrated evidence of normal breast development. At that time she was given oral contraceptives for four cycles and responded with normal vaginal bleeding. Laboratory evaluation at age 18 demonstrated a serum FSH (follicle-stimulating ho...

In this paper, the properties of the mean and variance of three estimators of the ratio between two random variables x, y are discussed. Given n samples of x and y we can construct two different estimators. One is biased and the other is asymptotically unbiased. Using the noise characteristics (variance, covariance) a third, unbiased estimator can be constructed. 1. Introduction In fluorescence...

The neutrophil-to-lymphocyte ratio (NLR) has been shown to be associated with prognosis in various types of cancer. We evaluated pretreatment NLR as a predictor of poor prognosis in patients with hepatocellular carcinoma (HCC), and we compared the prognostic value of NLR with other prognostic scores. We retrospectively analyzed 825 patients diagnosed with HCC between October 2008 and May 2012. ...

The zeta sedimentation ratio (ZSR) capillary tube, is subjected to four is a measurement similar to the detercycles of dispersion and compaction. mination of the erythrocyte sedimenAt the conclusion of this process, the tation rate (ESR) but possesses sevaral hematocrit of the blood in the red advantages. It is unaffected by anemia cell-containing portion of the capillary and responds in a line...

The mathematical study of fuzzy equivalences or T indistinguishabilities has led to the publication of a good many papers see etc It is wor thy of note that within Theoretical Fuzzy Logic the mathematical analysis of T indistinguishabilities is a eld that is important in itself and of undeniable in terest for fuzzy logic applications such as control the ory for instance see etc Furthermore ther...