SEIZING OPPORTUNITY: COURAGE AS CATALYST

Part 2 of this issue’s “Seizing Opportunity” special-invitation collection, “Courage as Catalyst,” first appeared in “Coaching Corner” (June 2012), a column in The Mann Report-Residential real estate magazine published in New York City. The article is reprinted by permission

SEIZING OPPORTUNITY: “OPPORTUNITY AS TRANSFORMATION”

Part 3 of this issue’s “Seizing Opportunity” special-invitation collection, “Opportunity as Transformation,” first appeared in “Coaching Corner” (November 2011), a column in The Mann Report-Residential real estate magazine published in New York City. The article is reprinted by permission

SEIZING OPPORTUNITY: SUCCEEDING TO FAIL: A PATH TO TRANSFORMATION

Part 4 of this issue’s “Seizing Opportunity” special-invitation collection, “Succeeding to Fail: A Path to Transformation,” first appeared in “Coaching Corner” (November 2011), a column in The Mann Report-Residential real estate magazine published in New York City. The article is reprinted by permission

Double venipuncture is not required for adequate S-100B determination in melanoma patients

S-100B is used in melanoma follow-up. This serum biomarker is also present in adipocytes; therefore, subcutaneous adipocytes trapped in the needle before performing a venipuncture could contaminate the serum. The aim was to study the influence of adipocyte contamination on blood samples used for S-100B analysis, possibly resulting in falsely elevated S-100B values. A total of 294 serum samples were collected from 147 American Joint Committee on Cancer staging stage III melanoma patients. The mean difference between the first (dummy) and second tubes was 0.003 μg/l (p = 0.077), with a decrease in the second tube. Compared with the second tube, the S-100B level was higher in the first tube in 33.3% of the samples, equal in 36.8% of the samples and lower in 29.9% of the samples. No significant difference between the two consecutively drawn tubes was found. There seems to be no necessity of implementing a dummy tube system for accurate S-100B determination in melanoma patients

Complications of syndesmotic screw removal

Background: Currently, the metallic syndesmotic screw is the gold standard in the treatment of syndesmotic disruption. Whether or not this screw needs to be removed remains debatable. The aim of the current study was to determine the complications which occur following routine removal of the syndesmotic screw following operative treatment of unstable ankle fractures. Methods: This was a retrospective study with consecutive cases in a Level-2 Trauma center. All patients with routine removal of a syndesmotic screw, following the treatment of an unstable ankle fracture, between January 1, 2004 and November 30, 2010 were included. Complications recorded were: 1) minor or major wound infection following removal of the syndesmotic screw, 2) recurrent syndesmotic diastasis, and 3) unnecessary removal of a broken screw, not recognized during preoperative planning prior to surgery. Results: A total of 76 patients were included. A wound infection occurred in 9.2% (N=7) of which 2.6% (N=2) were deep infections requiring reoperation. Recurrent syndesmotic diastasis was found in 6.6% (N=5) of patients, and in 6.6% (N=5) screws were broken at the time of implant removal. In the group with recurrent diastasis the screws were removed significantly earlier compared with the group without recurrent diastasis (Mann- Whitney U-test; p = 0.011) and the group with screw breakage had their screws significantly longer in place compared with the group without breakage (p = 0.038). Conclusion: A total of 22.4% complications occurred upon routine removal of the syndesmotic screw. Removal might therefore be considered only in selected c

Apollonius unilateral transducer constant power gain circles on 3D Smith charts

[EN] Unilateral transducer constant power gain circles play an essential role in the design of radio-frequency amplifiers and active modulators, as they help to determine optimal impedance matching conditions to meet gain and stability specifications. It is shown that these gain circles are a subfamily of Apollonius circles. For better visualisation, unilateral transducer constant gain power circles have been plotted for the first time on the three-dimensional (3D) Smith chart. To this end, a natural relationship from an inversive geometry was required, in order to relate the gain circles with cutting planes for the 3D Smith chart.This work has been partly funded by the FP7 PCIG11-2012-322162 Marie Curie CIG, POSDRU/159/1.5/S/134398 and by DGCYT grant MTM2012-33073.Muller, AA.; Sanabria Codesal, E.; Moldoveanu, A.; Asavei, V.; Soto Pacheco, P.; Boria Esbert, VE.; Lucyszyn, S. (2014). Apollonius unilateral transducer constant power gain circles on 3D Smith charts. Electronics Letters. 50(21):1531-1533. https://doi.org/10.1049/el.2014.2695S153115335021Ciccognani, W., Longhi, P. E., Colangeli, S., & Limiti, E. (2013). Constant Mismatch Circles and Application to Low-Noise Microwave Amplifier Design. IEEE Transactions on Microwave Theory and Techniques, 61(12), 4154-4167. doi:10.1109/tmtt.2013.2288696Mukherjee, B., Patel, P., & Mukherjee, J. (2014). Hemispherical Dielectric Resonator Antenna Based on Apollonian Gasket of Circles—A Fractal Approach. IEEE Transactions on Antennas and Propagation, 62(1), 40-47. doi:10.1109/tap.2013.2287011Muller, A. A., Soto, P., Dascalu, D., Neculoiu, D., & Boria, V. E. (2011). A 3-D Smith Chart Based on the Riemann Sphere for Active and Passive Microwave Circuits. IEEE Microwave and Wireless Components Letters, 21(6), 286-288. doi:10.1109/lmwc.2011.2132697Lucyszyn, S., & Robertson, I. D. (1994). Monolithic narrow-band filter using ultrahigh-Q tunable active inductors. IEEE Transactions on Microwave Theory and Techniques, 42(12), 2617-2622. doi:10.1109/22.339805Caporal Del Barrio, S., Pedersen, G. F., Bahramzy, P., Jagielski, O., & Svendsen, S. (2014). Thermal loss in high-Q antennas. Electronics Letters, 50(13), 917-919. doi:10.1049/el.2014.122

The Lantern Vol. 8, No. 1, December 1939

• Christmas Resurrection • Autumn\u27s Song • Henry Cavendish • The Mystery of Loon Cove • All Hail, Fair Modesty • Mischall • Gift of the Magi • Camera-Phobia • One Envying a Poet • Sonnetshttps://digitalcommons.ursinus.edu/lantern/1019/thumbnail.jp

Circularly Polarized Luminescence from Simple Organic Molecules

This article aims to show the identity of “circularly polarized luminescent active simple organic molecules” as a new concept in organic chemistry due to the potential interest of these molecules, as availed by the exponentially growing number of research articles related to them. In particular, it describes and highlights the interest and difficulty in developing chiral simple (small and non-aggregated) organic molecules able to emit left- or right-circularly polarized light efficiently, the efforts realized up to now to reach this challenging objective, and the most significant milestones achieved to date. General guidelines for the preparation of these interesting molecules are also presented