and Hajnal [I] introduced the real function f(a) =inf {.P(G) J ~~i~: ~a}. They asked about the behaviour ofj(rx) as rx tends to infinity. The complete bipartite graph Kn,n shows that f(n)~c ·log n for n~2, but originally it was unknown whether f(a) is bouJ1ded or not. Recently Gyarfas, Koml6s and Szemeredi (2] showed that f(a) ~a ·log a, provided that a>b, where a and bare suitable contants. Ob...

In 2010, the Purdue University College of Pharmacy established the Medication Safety Research Network of Indiana (Rx-SafeNet), the first practice-based research network (PBRN) in Indiana comprised solely of community pharmacies. In the development of Rx-SafeNet and through our early project experiences, we identified several "lessons learned." We share our story and what we learned in an effort...

We report the discovery of a new isolated neutron star candidate, RX J0420.0–5022, showing evidence (4σ) for 22.7 s X-ray pulsations in ROSAT data. NTT observations of the field around the soft X-ray source do not reveal any likely optical counterpart brighter than B = 25.25 implying an X-ray to optical flux ratio of > 10 3.3 and ruling out other possible kinds of X-ray emitters. The X-ray spec...

Recently, multiple-input multiple-output (MIMO) technology has been introduced into magnetic resonant coupling (MRC) enabled wireless power transfer (WPT) systems for concurrent charging of multiple devices. However, impedance mismatching phenomena caused by strong TX-RX, TX-TX, or RX-RX greatly affect the delivered to load (PDL) in practical systems. To solve this issue, we propose an effectiv...

The bipedal spin label Rx is more restricted in its conformation and dynamics than its monopodal counterpart R1. To systematically investigate the utility of the Rx label, we have attempted to comprehensively survey the attachment of Rx to protein secondary structures. We have examined the formation, structure and dynamics of the spin label in relation to the underlying protein in order to dete...

Photofrin-mediated photodynamic therapy (PDT) is used after surgical resection at the University of Pennsylvania to treat the microscopic disease for malignant pleural mesothelioma and to increase survival rate. When Photofrin is exposed to laser light at 630 nm in well-oxygenated tissue, it produces reacted singlet oxygen ([O2]rx) that kills cancer cells. As [O2]rx is imperative to PDT treatme...

We present the results of a dedicated effort to measure the spin-down rate of the nearby isolated neutron star RX J0720.4−3125. Comparing arrival times of the 8.39-sec pulsations for data from Chandra we derive an unambiguous timing solution for RX J0720.4−3125 that is accurate to < 0.1 cycles over > 5 years. Adding data from XMM and ROSAT, the final solution yields Ṗ = (6.98 ± 0.02) × 10 s s; ...

We report identification of a narrow-line Seyfert 1 galaxy RX J1236.9+2656. X-ray emission from the NLS1 galaxy undergoes long-term variability with 0.1– 2.0 keV flux changing by a factor of ∼ 2 within ∼ 3 yr. The ROSAT PSPC spectrum of RX J1236.9+2656 is well represented by a power-law of ΓX = 3.7 +0.5 −0.3 absorbed by matter in our own Galaxy (NH = 1.33 × 10 20 cm). Intrinsic soft X-ray lumin...

This paper describes a method for estimating the parameters of an autoregressive (AR) process from a nite number of noisy measurements. The method uses a modi ed set of YuleWalker equations that lead to a quadratic eigenvalue problem which when solved, gives estimates of the AR parameters and the measurement noise variance. Version 2, submitted to IEEE Transactions on Signal Processing January ...

We present a Hubble Space Telescope Advanced Camera for Surveys (ACS) weak-lensing study of RX J0849+4452 and RX J0848+4453, the two most distant (at z = 1.26 and z = 1.27, respectively) clusters yet measured with weak-lensing. The two clusters are separated by ∼ 4 from each other and appear to form a supercluster in the Lynx field. Using our deep ACS i775 and z850 imaging, we detected weak-len...