264,160 research outputs found
Friedlander Quarterback Rating (FQBR) : a new method to evaluate quarterbacks.
No full textThere is no position in football more important to the outcome of the game than the quarterback. As a result, coaches and analysts have spent decades attempting to evaluate quarterbacks and project their performances at all levels of football. Before analytics, most of the quarterback evaluations were conducted by scouts, who looked at physical traits such as height, weight, and arm strength. Analytics introduced the ability to measure quarterbacks by performance-based statistics. Metrics such as Passer Rating and Total QBR (ESPN’s Quarterback Rating) measure quarterback performance using in-game stats such as passing touchdowns, passing yards, interceptions, and completion percentage, among others. Yet metrics such as Passer Rating fail to account for the importance of each towards the outcome of the game. Total QBR, on the other hand, considers play importance in its evaluation of quarterbacks. In this paper, I will discuss both Passer Rating and Total QBR. I will then evaluate and discuss my quarterback rating metric, Friedlander Quarterback Rating (FQBR), and compare it with other quarterback rating metrics
Personal Papers (MS 80-0002)
No full textLetter from I. H. Kempner to J. T. Friedlander requesting assistance in finding an institution for an elderly German woman who is unable to care for herself due to health issues
I saved a waltz for you [first line of chorus]
No full textstrophic with choruspiano and voiceads on back cover for T.B. Harms stock6183-4Johns Hopkins University, Levy Sheet Music Collection, Box
155, Item 177Music and Lyrics by William B. Friedlander.William B. Friedlander Presents Pitter-Patter, A Musical Comedy. Book by Will M. Hough
I saved a waltz for you [first line of chorus]
No full textstrophic with choruspiano and voiceads on back cover for T.B. Harms stock6183-4Johns Hopkins University, Levy Sheet Music Collection, Box
155, Item 177Music and Lyrics by William B. Friedlander.William B. Friedlander Presents Pitter-Patter, A Musical Comedy. Book by Will M. Hough
On the Friedlander–Nadirashvili invariants of surfaces
No full textLet M be a closed smooth manifold. In 1999, Friedlander and Nadirashvili introduced a new differential invariant I₁ (M) using the first normalized nonzero eigenvalue of the Lalpace–Beltrami operator Δ_g of a Riemannian metric g. They defined it taking the supremum of this quantity over all Riemannian metrics in each conformal class, and then taking the infimum over all conformal classes. By analogy we use k-th eigenvalues of Δ_g to define the invariants I_k(M) indexed by positive integers k. In the present paper the values of these invariants on surfaces are investigated. We show that I_k(M) = Ik(S²) unless M is a non-orientable surface of even genus. For orientable surfaces and k = 1 this was earlier shown by Petrides. In fact Friedlander and Nadirashvili suggested that I₁(M) = I₁ (S²) for any surface M different from RP². We show that, surprisingly enough, this is not true for non-orientable surfaces of even genus, for such surfaces one has I_k(M) > I_k(S²). We also discuss the connection between the Friedlander–Nadirashvili invariants and the theory of cobordisms, and conjecture that I_k(M) is a cobordism invariant
Microwave-assisted solvent-free Friedlander synthesis of 1,8-naphthyridines using ammonium acetate as catalyst
No full text1051-1053The microwave enhanced synthes is of 1,8-naphthyridines 3 is achieved rapidly and in good yield via the Friedlander condensation of 2-aminonicotinaldehyde 1 with carbonyl compounds containing -methylene group 2 in the presence of ammonium acetate
Personal Papers (MS 80-0002)
No full textHandwritten letter from Linda Friedlander to I. H. Kempner discussing her appreciation for Kempner's handling and selling of a Louisiana property while hoping he continues to heal from his illness
Personal Papers (MS 80-0002)
No full textHandwritten letter from Mrs. E. M. (Jane) Friedlander to Erich Freund, notifying him of potential homes he can look into for his elderly mother at the request of I. H. Kempner
Radiographic Identification of Separated Instruments Retained in the Apical Third of Root Canal-filled Teeth
No full textIntroduction: The aim of the study was to compare the diagnostic ability to radiographically detect separated stainless steel (SS) versus nickel-titanium (NiTi) instruments located at the apical third of filled root canals with either AH 26 (Dentsply DeTrey GmbH, Konstanz, Germany) or Roth sealer (Roth International Ltd, Chicago, IL). Methods: Sixty single-rooted extracted human teeth with 1 straight root canal were instrumented to a size 25 apical diameter. In 40 teeth, apical 2-mm segments of SS (n = 20) or NiTi (n = 20) files were intentionally fractured in the apical part of the root canal. The remaining 20 teeth without fractured files served as a control group. Subsequently, the root canals were filled using laterally condensed gutta-percha and either AH 26 sealer (AH) or Roth sealer (Roth). All teeth were radiographed using conventional Kodak film (Eastman Kodak Co, Rochester, NY) and a charge-coupled device digital sensor. The evaluation of the images for the presence of a fractured instrument was performed independently by 2 blinded observers. The data were statistically analyzed using McNemar and Fisher exact tests. Results: The kappa values were 0.76 and 0.615 for the first and second observers, respectively, and 0.584 between the observers. There were no significant differences in the diagnostic ability between digital and conventional radiography or the different root canal sealers (AH vs Roth, P > .05). The sensitivity to detect fractured SS was significantly higher than NiTi (P < .05). Conclusions: It may be difficult to radiographically detect a retained separated instrument. It is easier to radiographically detect fractured SS than NiTi instruments retained at the apical third of the root canal. © 2014 American Association of Endodontists
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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