39 results on '"Warren E Jr"'
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2. Jadera haematoloma, another insect on its way north (Hemiptera: Rhopalidae)
- Author
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Hoffman, Richard L., Warren E, Jr Steiner, and BioStor
- Published
- 2005
3. Voters elect representatives. But often it is politicians who pick their voters
- Author
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Milteer, Warren E., Jr.
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Suffrage -- Laws, regulations and rules -- Demographic aspects ,Politicians -- Behavior ,Voting -- History -- Demographic aspects ,United States history ,Government regulation ,General interest ,News, opinion and commentary - Abstract
Byline: Warren E. Milteer Jr. Across the country, from Texas to Florida, conservative lawmakers are working to make access to the ballot more difficult, enacting measures that reduce voting hours, [...]
- Published
- 2021
4. Pests in an ancient Egyptian harbor
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Borojevic, Ksenija, Steiner, Warren E., Jr., Gerisch, Rainer, Zazzaro, Chiara, and Ward, Cheryl
- Published
- 2010
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5. A boundary element technique applied to the analysis of waveguides with periodic surface corrugations
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Butler, Jerome K., Ferguson, Warren E., Jr., Evans, Gary A., Stabile, P.J., and Rosen, Arye
- Subjects
Waveguides -- Research ,Dielectrics -- Optical properties ,Business ,Computers ,Electronics ,Electronics and electrical industries - Abstract
A boundary integral formulation for the analysis of two-dimensional waveguides with periodic surface corrugations is presented. The waveguide problem being studied is formulated by deriving the wave equation above and below the gratingfield. A final solution is then obtained by simplfying the equation into a finite size matrix expression. Results indicate that this boundary element method is highly effective in the modal analysis of two-dimensional waveguides.
- Published
- 1992
6. Catalogue of Tenebrionidae (Coleoptera) of North America
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Bousquet, Yves, Thomas, Donald B., Bouchard, Patrice, Smith, Aaron D., Aalbu, Rolf L., Johnston, M. Andrew, Steiner, Warren E., Jr., Bousquet, Yves, Thomas, Donald B., Bouchard, Patrice, Smith, Aaron D., Aalbu, Rolf L., Johnston, M. Andrew, and Steiner, Warren E., Jr.
- Abstract
This catalogue includes all valid family-group (8 subfamilies, 52 tribes, 14 subtribes), genus-group (349 genera, 86 subgenera), and species-group names (2825 species, 215 subspecies) of darkling beetles (Coleoptera: Tenebrionidae) known to occur in North America1 and their available synonyms. Data on extant, subfossil and fossil taxa are given. For each name the author and year and page number of the description are provided, with additional information (e.g., type species for genus-group names, author of synonymies for invalid taxa) depending on the taxon rank. Several new nomenclatural acts are included. One new genus, Lepidocnemeplatia Bousquet and Bouchard, is described. Spelaebiosis Bousquet and Bouchard [for Ardoinia Özdikmen, 2004], Blapstinus marcuzzii Aalbu [for Blapstinus kulzeri Marcuzzi, 1977], and Hymenorus campbelli Bouchard [for Hymenorus oculatus Doyen and Poinar, 1994] are proposed as new replacement names. Supporting evidence is provided for the conservation of usage of Tarpela micans (Fabricius, 1798) nomen protectum over Tarpela vittata (Olivier, 1793) nomen oblitum. The generic names Psilomera Motschulsky, 1870 [= Stenomorpha Solier, 1836], Steneleodes Blaisdell, 1909 [= Xysta Eschscholtz, 1829], Ooconibius Casey, 1895 and Euconibius Casey, 1895 [= Conibius LeConte, 1851] are new synonyms (valid names in square brackets).
- Published
- 2018
7. Selecting math coprocessors
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Ferguson, Warren E., Jr.
- Subjects
Math Coprocessor ,Hardware Selection ,Expansion Processor Units ,Comparison ,Floating-Point Arithmetic ,Computer-Aided Engineering ,Scientific Software ,Data Analysis ,Compatible Hardware - Published
- 1991
8. Effects of Iron Particles on Behavior and Brain Function: Initial Studies
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Hunt, Walter A., Rabin, Bernard M., Joseph, James A., Dalton, Thomas K., Murray, Warren E., Jr., Stevens, Sherrie A., McCormack, Percival D., editor, Swenberg, Charles E., editor, and Bücker, Horst, editor
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- 1988
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9. Twenty-First Century Color Lines: Multiracial Change in Contemporary America . Edited by Andrew Grant-Thomas and Gary Orfield . : Temple University Press , 2008 . xi + 312 pp. Graphs, tables, illustrations, notes, index, and bibliography. $76.50 (cloth); $25.95 (paper).
- Author
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Milteer, Warren E., Jr.
- Published
- 2012
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- View/download PDF
10. Nuclear waste - The case for confidence in disposal.
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Brown, Omer F., II and Bergholz, Warren E., Jr.
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Radioactive waste disposal -- Analysis ,United States. Department of Energy ,United States. Nuclear Regulatory Commission - Published
- 1981
11. An Asian darkling beetle, Ceropria induta (Wiedemann), established in Florida (Coleoptera: Tenebrionidae)
- Author
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Steiner, Warren E., Jr., Golia, Vince, Steiner, Warren E., Jr., and Golia, Vince
- Abstract
Specimen records for an adventive darkling beetle, Ceropria induta (Wiedemann) (Coleoptera: Tenebrionidae; Diaperinae) show that this Asian insect has become established in southern Florida, USA. Illustrations and a diagnosis of the beetle are provided, with notes on habitats and possible polyporaceous hosts, and the genus is incorporated into a key to the related North American taxa.
- Published
- 2005
12. Parallelization of the Naval Space Surveillance Satellite Motion Model
- Author
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Phipps, Warren E. Jr., Neta, Beny, Danielson, D. A., and Applied Mathematics
- Abstract
The Naval Space Surveillance Center (NAVSPASUR) uses an analytic satellite motion model based on the Brouwer-Lyddane theory to track objects orbiting the Earth. In this paper we develop several parallel algorithms based on this model. These have been implemented on the INTEL iPSC/2 hypercube multi-computer. The speed-up and efficiency of these algorithms will be obtained. We show that the best of these algorithms achieves 87% efficiency if one uses a 16-node hypercube.
- Published
- 1993
13. Parallelization of the Naval Space Surveillance Center (NAVSPASUR) satellite motion model
- Author
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Phipps, Warren E., Jr., Neta, Beny, Danielson, Donald A., and Department of Mathematics
- Subjects
Hypercube ,Satellite motion model ,Parallel processing - Abstract
The Naval Space Surveillance Center (NAVSPASUR) uses an analytic satellite motion model based on the Brouwer-Lyddane theory to assist in tracking over 6000 objects in orbit around the earth. The satellite motion model is implemented by a Fortran subroutine, PPT2. Due to the increasing number of objects required to be tracked, NAVSPASUR desires a method to reduce the computation time of this satellite motion model. Parallel computing offers one method to achieve this objective. This thesis investigates the parallel computing potential of the MAVSPASUR model using the Intel iPSC/2 hypercube multi-computer. The thesis developed several parallel algorithms for the NAVSPASUR satellite motion model using the various methods of parallelization, applies these algorithms to the hypercube, and reports on each algorithm's potential reduction in computation time. A diskette containing the Fortran software is available upon request from neta@boris.math.nps.navy.mil. http://archive.org/details/parallelizationo1094524001 Captain, United States Army Approved for public release; distribution is unlimited.
- Published
- 1992
14. Parallelization of the Naval Space Surveillance Satellite Motion Model
- Author
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Applied Mathematics, Neta, Beny, Phipps, Warren E. Jr., Danielson, D.A., Applied Mathematics, Neta, Beny, Phipps, Warren E. Jr., and Danielson, D.A.
- Abstract
The Naval Space Surveillance Center (NAVSPASUR) uses an analytic satellite motion model based on the Brouwer-Lyddane theory to track objects orbiting the Earth. In this paper we develop several parallel algorithms based on this model. These have been implemented on the INTEL iPSC/2 hypercube multi-computer. The speed-up and efficiency of these algorithms will be obtained. We show that the best of these algorithms achieves 87% efficiency if one uses at 16-node hypercube.
- Published
- 1997
15. Parallelization of the Naval Space Surveillance Satellite Motion Model
- Author
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Applied Mathematics, Phipps, Warren E. Jr., Neta, Beny, Danielson, D. A., Applied Mathematics, Phipps, Warren E. Jr., Neta, Beny, and Danielson, D. A.
- Abstract
The Naval Space Surveillance Center (NAVSPASUR) uses an analytic satellite motion model based on the Brouwer-Lyddane theory to track objects orbiting the Earth. In this paper we develop several parallel algorithms based on this model. These have been implemented on the INTEL iPSC/2 hypercube multi-computer. The speed-up and efficiency of these algorithms will be obtained. We show that the best of these algorithms achieves 87% efficiency if one uses a 16-node hypercube.
- Published
- 1993
16. Parallelization of the Naval Space Surveillance Center (NAVSPASUR) satellite motion model
- Author
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Neta, Beny, Danielson, Donald A., Department of Mathematics, Phipps, Warren E., Jr., Neta, Beny, Danielson, Donald A., Department of Mathematics, and Phipps, Warren E., Jr.
- Abstract
The Naval Space Surveillance Center (NAVSPASUR) uses an analytic satellite motion model based on the Brouwer-Lyddane theory to assist in tracking over 6000 objects in orbit around the earth. The satellite motion model is implemented by a Fortran subroutine, PPT2. Due to the increasing number of objects required to be tracked, NAVSPASUR desires a method to reduce the computation time of this satellite motion model. Parallel computing offers one method to achieve this objective. This thesis investigates the parallel computing potential of the MAVSPASUR model using the Intel iPSC/2 hypercube multi-computer. The thesis developed several parallel algorithms for the NAVSPASUR satellite motion model using the various methods of parallelization, applies these algorithms to the hypercube, and reports on each algorithm's potential reduction in computation time. A diskette containing the Fortran software is available upon request from neta@boris.math.nps.navy.mil.
- Published
- 1992
17. Analysis of a Singularly-Perturbed Linear Two-Point Boundary-Value Problem.
- Author
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WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER, Ferguson,Warren E , Jr, WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER, and Ferguson,Warren E , Jr
- Abstract
This paper presents a simple constructive proof of the existence of solutions to a class of singularly-perturbed linear two-point boundary-value problems. Such problems arise when detailed models for physical phenomena involve effects that occur on markedly different temporal or spatial scales, the (singularly) small parameter measuring the disparity between the scales. This simple constructive proof, through slight modification, also allows one to prove the existence of solutions of a class of finite difference schemes used to approximate the solution of the continuous problem. Keywords: Differential equations; Greens function.
- Published
- 1986
18. A Simple Derivation of Glassman's General N Fast Fourier Transform.
- Author
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WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER, Ferguson,Warren E , Jr, WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER, and Ferguson,Warren E , Jr
- Abstract
A simple derivation of Glassman's general N fast Fourier transform, and corresponding FORTRAN program, is presented. This fast Fourier transform is based upon a representation of the discrete Fourier transform matrix as a product of sparse matrices. (Author)
- Published
- 1979
19. The Construction of Jacobi and Periodic Jacobi Matrices with Prescribed Spectra.
- Author
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WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER, Ferguson,Warren E , Jr, WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER, and Ferguson,Warren E , Jr
- Abstract
The spectral properties of Jacobi and periodic Jacobi matrices are analyzed and algorithms for the construction of Jacobi and periodic Jacobi matrices with prescribed spectra are presented. Numerical evidence demonstrates that these algorithms are of practical utility. These algorithms have been used in studies of the periodic Toda lattice, and might also be used in studies of inverse eigenvalue problems for Sturm-Louiville equations and Hill's equation. (Author)
- Published
- 1979
20. The Acquisition and Analysis of Wave Data Recorded on a Spar-Bouy Mounted Digital Cassette Recorder.
- Author
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RHODE ISLAND UNIV KINGSTON DEPT OF OCEAN ENGINEERING, Colburn,Warren E. , Jr., Middleton,Foster H., LeBlanc,Lester R., RHODE ISLAND UNIV KINGSTON DEPT OF OCEAN ENGINEERING, Colburn,Warren E. , Jr., Middleton,Foster H., and LeBlanc,Lester R.
- Abstract
This report concerns the design, fabrication, and operation of a wave measurement system. The system was required to operate without tethering, telemetering, or support from either a vessel or the sea floor. Another requirement was a rapid data processing ability, with a reliable spectral analysis of the wave height data taken during each of several operations. The damped spar buoy which served as the platform for the wave height sensors is described in the report. The wave height sensors were of the capacitor type and their associated electronic circuity is also given in the report. The wave height data was recorded on board the spar on a miniature digital cassette recorder. At the conclusion of each field test, the cassette containing the wave data was returned to the Ocean Engineering (URI) Laboratory for spectral analysis. The report contains an extensive presentation of the computer processing procedures (Fast Fourier Transform, window shading, power spectral density, frequency averaging, etc.).
- Published
- 1974
21. The Numerical Solution of a Class of Constrained Minimization Problems.
- Author
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WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER, Dyn,Nira, Ferguson,Warren E , Jr, WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER, Dyn,Nira, and Ferguson,Warren E , Jr
- Abstract
This paper proves that a large class of iterative schemes can be used to solve a certain constrained minimization problem. The constrained minimization problem considered involves the minimization of a quadratic functional subject to linear equality constraints. Among this class of convergent iterative schemes are generalizations of the relaxed Jacobi, Gauss-Seidel, and symmetric Gauss-Seidel schemes. (Author)
- Published
- 1982
22. Parallelization of the Naval Space Surveillance Center (NAVSPASUR) satellite motion model
- Author
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Neta, Beny, Danielson, Donald A., Department of Mathematics, Phipps, Warren E., Jr., Neta, Beny, Danielson, Donald A., Department of Mathematics, and Phipps, Warren E., Jr.
- Abstract
The Naval Space Surveillance Center (NAVSPASUR) uses an analytic satellite motion model based on the Brouwer-Lyddane theory to assist in tracking over 6000 objects in orbit around the earth. The satellite motion model is implemented by a Fortran subroutine, PPT2. Due to the increasing number of objects required to be tracked, NAVSPASUR desires a method to reduce the computation time of this satellite motion model. Parallel computing offers one method to achieve this objective. This thesis investigates the parallel computing potential of the MAVSPASUR model using the Intel iPSC/2 hypercube multi-computer. The thesis developed several parallel algorithms for the NAVSPASUR satellite motion model using the various methods of parallelization, applies these algorithms to the hypercube, and reports on each algorithm's potential reduction in computation time. A diskette containing the Fortran software is available upon request from neta@boris.math.nps.navy.mil., http://archive.org/details/parallelizationo1094524001, Captain, United States Army, Approved for public release; distribution is unlimited.
23. A simple derivation of Glassman's general N fast fourier transform
- Author
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Ferguson, Warren E., Jr.
- Published
- 1982
- Full Text
- View/download PDF
24. Thyrotropin-releasing hormone reverses the hypotension and bradycardia produced by leukotriene D 4 in unanesthetized guinea pigs
- Author
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Lux, Warren E., Jr., Feuerstein, Giora, and Faden, Alan I.
- Published
- 1983
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- View/download PDF
25. A depth controlled tow system for hydrographic and current measurements with applications
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Katz, Eli Joel and Witzell, Warren E., Jr.
- Published
- 1979
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26. Reversal of leukotriene D 4 hypotension by thyrotropin-releasing hormone
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Feuerstein, Giora, Lux, Warren E., Jr., Ezra, David, and Faden, Alan I.
- Published
- 1984
- Full Text
- View/download PDF
27. Thyrotropin-releasing hormone reverses experimental anaphylactic shock through non-endorphin-related mechanisms
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Lux, Warren E., Jr., Feuerstein, Giora, and Faden, Alan I.
- Published
- 1983
- Full Text
- View/download PDF
28. Bone block options for treating glenoid bone loss and glenohumeral instability: A systematic review.
- Author
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Briggs DV, Hurley ET, Warren E Jr, Amanah AY, Levin JM, Lau BC, Dickens JF, Klifto CS, and Anakwenze O
- Abstract
Background: To systematically review the literature assessing glenoid bone loss restoration by different bone block options and compare their dimensions., Methods: Systematic examination of articles in PubMed and EMBASE databases was performed per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines to find studies of bone grafts for treating anterior glenohumeral instability. Statistical analyses were conducted via Review Manager, and a p -value of <0.05 was statistically significant., Results: Our review included 25 studies evaluating 870 shoulders. Traditional arc Latarjet (TL) had more depth than congruent arc Latarjet (CAL; p = 0.003). The coronal radii of curvature of TL, CAL, distal tibia, and iliac crest bone blocks were similar to native glenoid ( p = 0.400, 0.817, 0.467, 0.216, respectively). CAL coracoid bone blocks restored significantly more glenoid surface area (30.3%) than TL bone blocks ( p = 0.012). The glenoid width and surface area restoration by distal clavicle bone blocks were equivalent to TL ( p = 0.058 and p = 0.103, respectively)., Discussion: The CAL technique restored higher percentages of glenoid surface area than TL but has less depth, which may increase fracture risk during screw insertion. The distal clavicle bone block is a suitable substitute to TL as it was equivalent regarding glenoid width and surface area restoration., Competing Interests: The authors declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: EH has the following associations or financial involvement: Arthroscopy—editorial or governing board, European Society for Surgery of the Shoulder and Elbow—board or committee member, and Journal of Shoulder and Elbow Surgery—editorial or governing board. JL has the following associations or financial involvement: Stryker—stock or stock options and Zimmer—stock or stock options. BL has the following associations or financial involvement: American Orthopaedic Society for Sports Medicine—board or committee member, Arthrex, Inc.—Research support, Arthroscopy Association of North America—board or committee member, DePuy, A Johnson & Johnson Company—paid consultant, Miach—paid consultant, and Wright Medical Technology, Inc.—research support. JD has the following associations or financial involvement: AAOS—board or committee member, American Journal of Sports Medicine—editorial or governing board, American Orthopaedic Society for Sports Medicine—board or committee member, Arthroscopy Association of North America—board or committee member, and Society of Military Orthopaedic Surgeons—board or committee member. CK has the following associations or financial involvement: Acumed, LLC—paid consultant, GE Healthcare—stock or stock options, Johnson & Johnson—stock or stock options, Merck—stock or stock options, Pfizer—stock or stock options, Restore3d—paid consultant, and Smith & Nephew—paid consultant. OA has the following associations or financial involvement: Exactech, Inc.—paid consultant, LIMA—paid consultant, Responsive Arthroscopy—paid consultant, Smith & Nephew—paid consultant, and Suture Tech—stock or stock options. The other authors declare they have no conflict of interest., (© The Author(s) 2024.)
- Published
- 2024
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29. Single-shot interscalene block with liposomal bupivacaine vs. non-liposomal bupivacaine in shoulder arthroplasty.
- Author
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Lorentz S, Levin JM, Warren E Jr, Hurley ET, Mills FB, Crook BS, Poehlein E, Green CL, Bullock WM, Gadsden JC, Klifto CS, and Anakwenze O
- Abstract
Background: Regional anesthesia is a valuable component of multimodal pain control in total shoulder arthroplasty (TSA), and multiple interscalene block anesthetic options exist, including nonliposomal interscalene bupivacaine (NLIB) and liposomal interscalene bupivacaine (LIB). The purpose of this study was to compare pain control and opioid consumption within 48 hours postoperation in those undergoing TSA with either LIB or NLIB., Methods: This was a retrospective cohort study at a single academic medical center including consecutive patients undergoing inpatient (>23-hour hospitalization) primary anatomic or reverse TSA from 2016 to 2020 who received either LIB or an NLIB for perioperative pain control. Perioperative patient outcomes were collected including pain levels and opioid usage, as well as 30- and 90-day emergency department (ED) visits or readmissions. The primary outcome was postoperative pain and opioid use., Results: Overall, 489 patients were included in this study (316 LIB and 173 NLIB). Pain scores at 3, 6, 12, and 48 hours postoperatively were not statistically significantly different (P > .05 for all). However, the LIB group had improved pain scores at 24 and 36 hours postoperation (P < .05 all). There was no difference in the incidence of severe postoperative pain, defined as a 9 or 10 numeric rating scale-11 score, between the 2 anesthesia groups after adjusting for preoperative pain and baseline opioid use (odds ratio 1.25, 95% confidence interval 0.57-2.74; P = .57). Overall, 99 of 316 patients receiving LIB (31.3%) did not require any postoperative opioids compared with 38 of 173 receiving NLIB (22.0%); however, this difference was not statistically significant after adjusting for prior opioid use and preoperative pain (P = .33). No statistically significant differences in postoperative total morphine equivalents or mean daily morphine equivalents consumed between the groups were found during their hospital stays (P > .05 for both). Finally, no significant differences were found in 30- and 90-day ED visits or readmission rates (all P > .05)., Conclusion: LIB and NLIB demonstrated differences in patient-reported pain scores at 24 and 36 hours postoperation, although these did not reach clinical significance. There were no statistically significant differences in opioid consumption during the hospital stay, including opioid use, total morphine equivalents, and daily mean morphine equivalents consumed during the hospital stay. Additionally, no differences were observed in 30- and 90-day ED visits or readmission rates., (Copyright © 2024 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
30. Radiographic comparison of eccentric stemmed vs. concentric stemless prosthetic humeral head positioning after anatomic total shoulder arthroplasty.
- Author
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Warren E Jr, Levin JM, Rechenmacher AJ, Hurley ET, Lassiter T, Klifto CS, and Anakwenze O
- Subjects
- Humans, Humeral Head diagnostic imaging, Humeral Head surgery, Prosthesis Design, Arthroplasty, Replacement, Shoulder, Shoulder Joint diagnostic imaging, Shoulder Joint surgery, Joint Prosthesis, Arthroplasty, Replacement, Shoulder Prosthesis
- Abstract
Introduction: Maintaining premorbid proximal humeral positioning is an essential consideration of anatomic total shoulder arthroplasty (aTSA), as malposition of the prosthetic humeral head can result in poor clinical outcomes. Stemless aTSA prosthetic heads are usually concentric, while stemmed aTSA prosthetic heads are typically eccentric in nature. Therefore, the purpose of this study was to compare the ability to restore native humeral head position between stemmed (eccentric) vs. stemless (concentric) aTSA., Materials and Methods: Postoperative anteroposterior radiographs of 52 stemmed and 46 stemless aTSAs were analyzed. A best-fit circle was created using previously published and validated techniques to represent the premorbid humeral head position and axis of rotation. This circle was juxtaposed with another circle following the arc of the implant head. Next, the offset in center of rotation (COR), radius of curvature (RoC), and humeral head height above the greater tuberosity (HHH) were measured. Additionally, based on prior studies, an offset of >3 mm at any point between the implant head surface and premorbid best-fit circle was considered significant and further classified as overstuffed or understuffed., Results: RoC deviation was significantly greater in the stemmed cohort than the stemless cohort (1.19 ± 1.37 mm vs. 0.65 ± 1.17 mm, P = .025). There was no statistically significant difference in deviation from premorbid humeral head between the stemmed and stemless cohorts for COR (3.20 ± 2.28 mm vs. 3.23 ± 2.09 mm, P = .800) or HHH (1.12 ± 3.27 mm vs. 0.92 ± 2.70 mm, P = .677). When comparing overstuffed implants to appropriately placed implants, there was a significant difference in overall COR deviation in stemmed implants (3.93 ± 2.51 mm vs. 1.92 ± 1.05 mm, P < .001). Superoinferior COR deviation (stemmed: 2.38 ± 3.01 mm vs. -0.61 ± 1.59 mm, P < .001; stemless: 2.70 ± 1.75 mm vs. -0.16 ± 1.87 mm, P < .001), mediolateral COR deviation (stemmed: 0.79 ± 2.65 mm vs. -0.62 ± 1.27 mm, P = .020; stemless: 0.40 ± 1.41 mm vs. -1.13 ± 1.96 mm, P = .020), and HHH (stemmed: 3.61 ± 2.73 mm vs. 0.50 ± 1.31 mm, P < .001; stemless: 3.98 ± 1.18 mm vs. 0.53 ± 1.41 mm, P < .001) were significantly different between overstuffed implants and appropriate implants in both the stemmed and stemless cohorts., Discussion: Stemless and stemmed aTSA implants have similar rates of reproducing satisfactory postoperative humeral head COR with both producing COR deviation most commonly in the superomedial direction. Deviation in HHH contributes to overstuffing in both stemmed and stemless implants, COR deviation contributes to overstuffing in stemmed implants, while RoC (humeral head size) is not associated with overstuffing. Based on this study, it appears that neither eccentric nor concentric prosthetic heads are superior in recreating premorbid humeral head position., (Copyright © 2023 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
31. Evaluation of information from artificial intelligence on rotator cuff repair surgery.
- Author
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Warren E Jr, Hurley ET, Park CN, Crook BS, Lorentz S, Levin JM, Anakwenze O, MacDonald PB, and Klifto CS
- Abstract
Purpose: The purpose of this study was to analyze the quality and readability of information regarding rotator cuff repair surgery available using an online AI software., Methods: An open AI model (ChatGPT) was used to answer 24 commonly asked questions from patients on rotator cuff repair. Questions were stratified into one of three categories based on the Rothwell classification system: fact, policy, or value. The answers for each category were evaluated for reliability, quality and readability using The Journal of the American Medical Association Benchmark criteria, DISCERN score, Flesch-Kincaid Reading Ease Score and Grade Level., Results: The Journal of the American Medical Association Benchmark criteria score for all three categories was 0, which is the lowest score indicating no reliable resources cited. The DISCERN score was 51 for fact, 53 for policy, and 55 for value questions, all of which are considered good scores. Across question categories, the reliability portion of the DISCERN score was low, due to a lack of resources. The Flesch-Kincaid Reading Ease Score (and Flesch-Kincaid Grade Level) was 48.3 (10.3) for the fact class, 42.0 (10.9) for the policy class, and 38.4 (11.6) for the value class., Conclusion: The quality of information provided by the open AI chat system was generally high across all question types but had significant shortcomings in reliability due to the absence of source material citations. The DISCERN scores of the AI generated responses matched or exceeded previously published results of studies evaluating the quality of online information about rotator cuff repairs. The responses were U.S. 10
th grade or higher reading level which is above the AMA and NIH recommendation of 6th grade reading level for patient materials. The AI software commonly referred the user to seek advice from orthopedic surgeons to improve their chances of a successful outcome., (© 2023 The Authors.)- Published
- 2023
- Full Text
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32. Arthroscopic Distal Clavicle Bone Block Technique for Anteroinferior Instability With Critical Bone Loss.
- Author
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Levin JM, Whitlock KG, Warren E Jr, Klifto CS, and Anakwenze O
- Abstract
Arthroscopic distal clavicle autograft represents a locally available source of autograft for bone block augmentation in patients with anterior shoulder instability with glenoid bone loss. Anatomic and biomechanical studies have supported distal clavicle autograft use as comparable to coracoid graft with regard to restoration of glenoid articular surface, with the theoretical advantage of minimizing complications associated with coracoid transfer procedures, such as neurologic injury and coracoid fracture. The current technique describes a modification of those previously described, including a mini-open approach for distal clavicle autograft harvest, orientation of the distal clavicle with the medial clavicle graft against the glenoid (congruent arc), an all-arthroscopic technique of graft passage, and graft placement and fixation using specialized drill guides and four suture buttons to reproducibly place and secure the graft with final capsulolabral advancement over the graft to render it extra-articular., (© 2023 The Authors.)
- Published
- 2023
- Full Text
- View/download PDF
33. Simple preoperative radiographic and computed tomography measurements predict adequate bone quality for stemless total shoulder arthroplasty.
- Author
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Levin JM, Rodriguez K, Polascik BA, Zeng S, Warren E Jr, Rechenmacher A, Helmkamp J, Goltz DE, Wickman J, Klifto CS, Lassiter TE, and Anakwenze O
- Subjects
- Aged, Aged, 80 and over, Humans, Middle Aged, Prosthesis Design, Tomography, X-Ray Computed, Arthroplasty, Replacement, Shoulder, Shoulder Joint diagnostic imaging, Shoulder Joint surgery, Shoulder Prosthesis
- Abstract
Introduction: Although there is increased utilization of stemless humeral implants in anatomic total shoulder arthroplasty (TSA), there are inadequate objective metrics to evaluate bone quality sufficient for fixation. Our goals are to: (1) compare patient characteristics in patients who had plans for stemless TSA but received stemmed TSA due to intraoperative assessments and (2) propose threshold values of bone density, using the deltoid tuberosity index (DTI) and proximal humerus Hounsfield units (HU), on preoperative X-ray and computed tomography (CT) to allow for preoperative determination of adequate bone stock for stemless TSA., Methods: This is an observational study conducted at an academic institution from 2019 to 2021, including consecutive primary TSAs templated to undergo stemless TSA based on 3-dimensional CT preoperative plans. Final implant selection was determined by intraoperative assessment of bone quality. Preoperative X-ray and CT images were assessed to obtain DTI and proximal humeral bone density in HU, respectively. A receiver operating characteristic curve was used to analyze the potential of preoperative X-ray and CT to classify patients as candidates for stemless TSA., Results: A total of 61 planned stemless TSAs were included, with 56 (91.8%) undergoing stemless TSA and 5 (8.2%) undergoing stemmed TSA after intraoperative assessment determined that the bone quality was inadequate for stemless fixation. There were no significant differences between the 2 groups in terms of gender (P = .640), body mass index (P = .296), and race (P = .580). The stem cohort was significantly older (mean age 69 ± 12 years vs. 59 ± 10 years, P = .029), had significantly lower DTI (1.45 ± 0.13 vs. 1.68 ± 0.18, P = .007), and had significantly less proximal humeral HU (-1.4 ± 17.7 vs. 78.8 ± 52.4, P = .001). The receiver operating characteristic curve for DTI had an area under the curve (AUC) of 0.86, and bone density in HU had an AUC of 0.98 in its ability to distinguish patients who underwent stemless TSA vs. short-stem TSA. A threshold cutoff of 1.41 for DTI resulted in a sensitivity of 98% and a specificity of 60%, and a cutoff value of 14.4 HU resulted in a sensitivity of 95% and a specificity of 100%., Conclusions: Older age, lower DTI, and less proximal humeral bone density in HU were associated with the requirement to switch from stemless to short-stem humeral fixation in primary TSA. Preoperative DTI had good ability (AUC of 0.86) and preoperative HU had excellent ability (AUC of 0.98) to categorize patients as appropriate for stemless TSA. This can help surgeons adequately plan humeral fixation using standard preoperative imaging data., (Copyright © 2022 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)
- Published
- 2022
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34. Functional Grading of a Transversely Isotropic Hyperelastic Model with Applications in Modeling Tricuspid and Mitral Valve Transition Regions.
- Author
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Roy R, Warren E Jr, Xu Y, Yow C, Madhurapantula RS, Orgel JPRO, and Lister K
- Subjects
- Animals, Biomechanical Phenomena, Chordae Tendineae physiology, Computer Simulation, Finite Element Analysis, Mitral Valve anatomy & histology, Models, Biological, Models, Cardiovascular, Models, Theoretical, Papillary Muscles physiology, Stress, Mechanical, Swine, Tricuspid Valve anatomy & histology, Mitral Valve physiology, Tricuspid Valve physiology, X-Ray Diffraction methods
- Abstract
Surgical simulators and injury-prediction human models require a combination of representative tissue geometry and accurate tissue material properties to predict realistic tool-tissue interaction forces and injury mechanisms, respectively. While biological tissues have been individually characterized, the transition regions between tissues have received limited research attention, potentially resulting in inaccuracies within simulations. In this work, an approach to characterize the transition regions in transversely isotropic (TI) soft tissues using functionally graded material (FGM) modeling is presented. The effect of nonlinearities and multi-regime nature of the TI model on the functional grading process is discussed. The proposed approach has been implemented to characterize the transition regions in the leaflet (LL), chordae tendinae (CT) and the papillary muscle (PM) of porcine tricuspid valve (TV) and mitral valve (MV). The FGM model is informed using high resolution morphological measurements of the collagen fiber orientation and tissue composition in the transition regions, and deformation characteristics predicted by the FGM model are numerically validated to experimental data using X-ray diffraction imaging. The results indicate feasibility of using the FGM approach in modeling soft-tissue transitions and has implications in improving physical representation of tissue deformation throughout the body using a scalable version of the proposed approach.
- Published
- 2020
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35. Catalogue of Tenebrionidae (Coleoptera) of North America.
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Bousquet Y, Thomas DB, Bouchard P, Smith AD, Aalbu RL, Johnston MA, and Steiner WE Jr
- Abstract
This catalogue includes all valid family-group (8 subfamilies, 52 tribes, 14 subtribes), genus-group (349 genera, 86 subgenera), and species-group names (2825 species, 215 subspecies) of darkling beetles (Coleoptera: Tenebrionidae) known to occur in North America and their available synonyms. Data on extant, subfossil and fossil taxa are given. For each name the author and year and page number of the description are provided, with additional information (e.g., type species for genus-group names, author of synonymies for invalid taxa) depending on the taxon rank. Several new nomenclatural acts are included. One new genus, Lepidocnemeplatia Bousquet and Bouchard, is described. Spelaebiosis Bousquet and Bouchard [for Ardoinia Özdikmen, 2004], Blapstinus marcuzzii Aalbu [for Blapstinus kulzeri Marcuzzi, 1977], and Hymenorus campbelli Bouchard [for Hymenorus oculatus Doyen and Poinar, 1994] are proposed as new replacement names. Supporting evidence is provided for the conservation of usage of Tarpela micans (Fabricius, 1798) nomen protectum over Tarpela vittata (Olivier, 1793) nomen oblitum . The generic names Psilomera Motschulsky, 1870 [= Stenomorpha Solier, 1836], Steneleodes Blaisdell, 1909 [= Xysta Eschscholtz, 1829], Ooconibius Casey, 1895 and Euconibius Casey, 1895 [= Conibius LeConte, 1851] are new synonyms (valid names in square brackets). The following 127 new synonymies of species-group names, listed in their original combination, are proposed (valid names, in their current combination, placed in square brackets): Bothrasida mucorea Wilke, 1922 [= Pelecyphorus guanajuatensis (Champion, 1884)]; Parasida zacualpanicola Wilke, 1922 [= Pelecyphorus asidoides Solier, 1836]; Stenosides kulzeri Pallister, 1954, Stenosides bisinuatus Pallister, 1954, and Parasida trisinuata Pallister, 1954 [= Pelecyphorus dispar (Champion, 1892)]; Asida favosa Champion, 1884 and Asida similata Champion, 1884 [= Pelecyphorus fallax (Champion, 1884)]; Ologlyptus bicarinatus Champion, 1884 [= Pelecyphorus indutus (Champion, 1884)]; Parasida laciniata Casey, 1912 and Parasida cristata Pallister, 1954 [= Pelecyphorus liratus (LeConte, 1854)]; Parasida esperanzae Wilke, 1922 and Parasida mixtecae Wilke, 1922 [= Pelecyphorus longipennis (Champion, 1884)]; Parasida tolucana Casey, 1912 [= Pelecyphorus scutellaris (Champion, 1884)]; Parasida purpusi Wilke, 1922 [= Pelecyphorus tristis (Champion, 1884)]; Astrotus nosodermoides Champion, 1892 [= Pelecyphorus erosus (Champion, 1892)]; Astrotus seticornis var. humeralis Champion, 1884 [= Pelecyphorus seticornis (Champion, 1884)]; Pactostoma breviuscula Casey, 1912, Pactostoma exoleta Casey, 1912, Pactostoma luteotecta Casey, 1912, Pactostoma monticola Casey, 1912, Pactostoma obtecta Casey, 1912, and Pactostoma sigillata Casey, 1912 [= Pelecyphorus anastomosis (Say, 1824)]; Ologlyptus canus Champion, 1884 and Ologlyptus sinuaticollis Champion, 1884 [= Pelecyphorus graciliformis (Solier, 1836)]; Gonasida elata reducta Casey, 1912, Gonasida elata prolixa Casey, 1912, and Gonasida aucta Casey, 1912 [= Philolithus elatus compar (Casey, 1912)]; Gonasida alaticollis Casey, 1912 [= Philolithus elatus difformis (LeConte, 1854)]; Gonasida gravida Casey, 1912 [= Philolithus elatus elatus (LeConte, 1853)]; Pelecyphorus aegrotus limbatus Casey, 1912 [= Philolithus aegrotus aegrotus (LeConte, 1861)]; Pelecyphorus corporalis Casey, 1912, Pelecyphorus reptans Casey, 1912, Pelecyphorus socer Casey, 1912, Pelecyphorus abscissus Casey, 1912, Pelecyphorus fumosus Casey, 1912, Pelecyphorus parvus Casey, 1912, Pelecyphorus morbillosus pacatus Casey, 1912, Pelecyphorus morbillosus sobrius Casey, 1912, Pelecyphorus piceus Casey, 1912, Pelecyphorus piceus crudelis Casey, 1912, Pelecyphorus snowi Casey, 1912, and Pelecyphorus subtenuis Casey, 1912 [= Philolithus morbillosus (LeConte, 1858)]; Bothrasida sanctae-agnae Wilke, 1922 [= Stenomorpha funesta (Champion, 1884)]; Asida flaccida Horn, 1896 [= Stenomorpha embaphionides (Horn, 1894)]; Asida angustula Casey, 1890, Stethasida stricta Casey, 1912, Stethasida muricatula languida Casey, 1912, Stethasida pertinax Casey, 1912, Stethasida socors Casey, 1912, Stethasida angustula inepta Casey, 1912, Stethasida tenax Casey, 1912, and Stethasida vegrandis Casey, 1912 [= Stenomorpha muricatula (LeConte, 1851)]; Stethasida obsoleta expansa Casey, 1912, Stethasida obsoleta opacella Casey, 1912, Stethasida brevipes Casey, 1912, Stethasida torpida Casey, 1912, Stethasida convergens Casey, 1912, Stethasida discreta Casey, 1912, Stethasida longula Casey, 1912, Stethasida adumbrata Casey, 1912, Stethasida occulta Casey, 1912, Stethasida tarsalis Casey, 1912, Stethasida unica Casey, 1912, and Pelecyphorus laevigatus Papp, 1961 [= Stenomorpha obsoleta (LeConte, 1851)]; Trichiasida eremica Wilke, 1922 [= Stenomorpha difficilis (Champion, 1884)]; Trichiasida lineatopilosa Casey, 1912 [= Stenomorpha hirsuta (LeConte, 1851)]; Trichiasida tenella Casey, 1912 [= Stenomorpha hispidula (LeConte, 1851)]; Trichiasida duplex Casey, 1912 [= Stenomorpha villosa (Champion, 1884)]; Alaudes squamosa Blaisdell, 1919, Alaudes testacea Blaisdell, 1919, and Alaudes fallax Fall, 1928 [= Alaudes singularis Horn, 1870]; Edrotes barrowsi Dajoz, 1999 [= Edrotes ventricosus LeConte, 1851]; Nyctoporis tetrica Casey, 1907 and Nyctoporis maura Casey, 1907 [= Nyctoporis aequicollis Eschscholtz, 1831]; Nyctoporis pullata Casey, 1907 [= Nyctoporis sponsa Casey, 1907]; Eleodes tibialis forma oblonga Blaisdell, 1909 [= Eleodes tibialis Blaisdell, 1909]; Eleodes ( manni var.) variolosa Blaisdell, 1917 [= Eleodes constrictus LeConte, 1858]; Eleodes cordata forma sublaevis Blaisdell, 1909, Eleodes cordata forma intermedia Blaisdell, 1909, Eleodes cordata forma oblonga Blaisdell, 1909, Eleodes cordata forma elongata Blaisdell, 1909, and Eleodes ( cordata var.) adulterina Blaisdell, 1917 [= Eleodes cordata Eschscholtz, 1829]; Eleodes hornii var. monticula Blaisdell, 1918 and Eleodes manni sierra Blaisdell, 1925 [= Eleodes fuchsii Blaisdell, 1909]; Eleodes parvicollis var. squalida Blaisdell, 1918 [= Eleodes parvicollis Eschscholtz, 1829]; Eleodes reflexicollis Mannerheim, 1843 and Eleodes parvicollis forma farallonica Blaisdell, 1909 [= Eleodes planata Eschscholtz, 1829]; Eleodes indentata Blaisdell, 1935 [= Eleodes rotundipennis LeConte, 1857]; Eleodes intricata Mannerheim, 1843 [= Eleodes scabrosa Eschscholtz, 1829]; Eleodes horni fenyesi Blaisdell, 1925 [= Eleodes tenebrosa Horn, 1870]; Eleodes cordata var. horrida Blaisdell, 1918 [= Eleodes tuberculata Eschscholtz, 1829]; Eleodes oblonga Blaisdell, 1933 [= Eleodes versatilis Blaisdell, 1921]; Eleodes dentipes marinae Blaisdell, 1921 [= Eleodes dentipes Eschscholtz, 1829]; Eleodes carbonaria forma glabra Blaisdell, 1909 [= Eleodes carbonaria carbonaria (Say, 1824)]; Eleodes granosa forma fortis Blaisdell, 1909 [= Eleodes granosa LeConte, 1866]; Eleodes pilosa forma ordinata Blaisdell, 1909 [= Eleodes pilosa Horn, 1870]; Trogloderus costatus pappi Kulzer, 1960 [= Trogloderus tuberculatus Blaisdell, 1909]; Trogloderus costatus mayhewi Papp, 1961 [= Trogloderus vandykei La Rivers, 1946]; Bolitophagus cristatus Gosse, 1840 [= Bolitotherus cornutus (Fabricius, 1801)]; Eleates explanatus Casey, 1890 [= Eleates depressus (Randall, 1838)]; Blapstinus sonorae Casey, 1890 [= Blapstinus brevicollis LeConte, 1851]; Blapstinus falli Blaisdell, 1929 [= Blapstinus castaneus Casey, 1890]; Blapstinus brunneus Casey, 1890 and Blapstinus coronadensis Blaisdell, 1892 [= Blapstinus histricus Casey, 1890]; Blapstinus hesperius Casey, 1890 [= Blapstinus intermixtus Casey, 1890]; Blapstinus cinerascens Fall, 1929 [= Blapstinus lecontei Mulsant and Rey, 1859]; Blapstinus niger Casey, 1890 and Blapstinus cribricollis Casey, 1890 [= Blapstinus pimalis Casey, 1885]; Blapstinus arenarius Casey, 1890 [= Blapstinus pratensis LeConte, 1859]; Blapstinus gregalis Casey, 1890 [= Blapstinus substriatus Champion, 1885]; Blapstinus hydropicus Casey, 1890 [= Blapstinus sulcatus LeConte, 1851]; Blapstinus hospes Casey, 1890 [= Blapstinus vestitus LeConte, 1859]; Notibius reflexus Horn, 1894 [= Conibius opacus (LeConte, 1866)]; Notibius affinis Champion, 1885 [= Conibius rugipes (Champion, 1885)]; Conibius parallelus LeConte, 1851 [= Conibius seriatus LeConte, 1851]; Nocibiotes rubripes Casey, 1895 [= Nocibiotes caudatus Casey, 1895]; Nocibiotes gracilis Casey, 1895 and Nocibiotes acutus Casey, 1895 [= Nocibiotes granulatus (LeConte, 1851)]; Conibius alternatus Casey, 1890 [= Tonibius sulcatus (LeConte, 1851)]; Pedinus suturalis Say, 1824 [= Alaetrinus minimus (Palisot de Beauvois, 1817)]; Menedrio longipennis Motschulsky, 1872 [= Tenebrio obscurus Fabricius, 1792]; Hymenophorus megops Hatch, 1965 and Telesicles magnus Hatch, 1965 [= Hymenorus sinuatus Fall, 1931]; Andrimus concolor Casey, 1891 and Andrimus convergens Casey, 1891 [= Andrimus murrayi (LeConte, 1866)]; Mycetochara marshalli Campbell, 1978 [= Mycetochara perplexata Marshall, 1970]; Phaleria globosa LeConte, 1857 [= Phaleria picta Mannerheim, 1843]. The following subspecies of Trogloderus costatus LeConte, 1879 are given species rank: Trogloderus nevadus La Rivers, 1943, Trogloderus tuberculatus Blaisdell, 1909, and Trogloderus vandykei La Rivers, 1946. The following taxa, previously thought to be junior synonyms, are considered valid: Amphidora Eschscholtz, 1829; Xysta Eschscholtz, 1829; Helops confluens (Casey, 1924). Two new combinations are proposed: Stenomorpha spinimana (Champion, 1892) and Stenomorpha tenebrosa (Champion, 1892) [from the genus Parasida Casey, 1912]. The type species [placed in square brackets] of the following 12 genus-group taxa are designated for the first time: Lagriola Kirsch, 1874 [ Lagriola operosa Kirsch, 1874]; Locrodes Casey, 1907 [ Emmenastus piceus Casey, 1890]; Falacer Laporte, 1840 [ Acanthopus cupreus Laporte, 1840 (= Helops contractus Palisot de Beauvois, 1812)]; Blapylis Horn, 1870 [ Eleodes cordata Eschscholtz, 1829]; Discogenia LeConte, 1866 [ Eleodes scabricula LeConte, 1858]; Metablapylis Blaisdell, 1909 [ Eleodes nigrina LeConte, 1858]; Steneleodes Blaisdell, 1909 [ Eleodes longicollis LeConte, 1851]; Scaptes Champion, 1886 [ Scaptes squamulatus Champion, 1886 (= Asida tropica Kirsch, 1866)]; Aspidius Mulsant and Rey, 1859 [ Blaps punctata Fabricius, 1792]; Cryptozoon Schaufuss, 1882 [ Cryptozoon civile Schaufuss, 1882]; Halophalerus Crotch, 1874 [ Phaleria rotundata LeConte, 1851]; Dignamptus LeConte, 1878 [ Dignamptus stenochinus LeConte, 1878]. Two species previously known from South America [ Nilio lebasi J. Thomson and Platydema erotyloides Chevrolat] are reported for the first time from North America.
- Published
- 2018
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36. Larvae and pupae of two North American darkling beetles (Coleoptera, Tenebrionidae, Stenochiinae), Glyptotus cribratus LeConte and Cibdelis blaschkei Mannerheim, with notes on ecological and behavioural similarities.
- Author
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Steiner WE Jr
- Abstract
THIS STUDY DESCRIBES AND ILLUSTRATES THE LARVAE AND PUPAE OF TWO NORTH AMERICAN DARKLING BEETLES (COLEOPTERA: Tenebrionidae) in the subfamily Stenochiinae, Glyptotus cribratus LeConte from the southeastern United States, and Cibdelis blaschkei Mannerheim from California. Both species inhabit forested regions where adults and larvae occur in soft rotten dry wood of dead branches on living trees or in sections recently fallen from them. Species identity was confirmed by rearing of adults and pupae and the discovery of both in pupal cells with associated exuvia. Specimen label data and notes on habitats are provided. Antipredator defense structures and behaviour are noted for larvae and pupae of both species.
- Published
- 2014
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37. The systematic position of Meruidae (Coleoptera, Adephaga) and the phylogeny of the smaller aquatic adephagan beetle families.
- Author
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Beutel RG, Balke M, and Steiner WE Jr
- Abstract
A phylogenetic analysis of Adephaga is presented. It is based on 148 morphological characters of adults and larvae and focussed on a placement of the recently described Meruidae, and the genus-level phylogeny of the smaller aquatic families Gyrinidae, Haliplidae and Noteridae. We found a sister group relationship between Gyrinidae and the remaining adephagan families, as was found in previous studies using morphology. Haliplidae are either the sister group of Dytiscoidea or the sister group of a clade comprising Geadephaga and the dytiscoid families. Trachypachidae was placed as the sister group of the rhysodid-carabid clade or of Dytiscoidea. The monophyly of Dytiscoidea including Meru is well supported. Autapomorphies are the extensive metathoracic intercoxal septum, the origin of the metafurca from this structure, the loss of Mm. furcacoxalis anterior and posterior, and possibly the presence of an elongated subcubital setal binding patch. Meruidae was placed as sister group of the Noteridae. Synapomorphies are the absence of the transverse ridge of the metaventrite, the fusion of abdominal segments III and IV, the shape of the strongly asymmetric parameres, and the enlargement of antennomeres 5, 7 and 9. The Meru-noterid clade is the sister group of the remaining Dytiscoidea. The exact position of Aspidytes within this clade remains ambiguous: it is either the sister group of Amphizoidae or the sister group of a clade comprising this family and Hygrobiidae + Dytiscidae. The sister group relationship between Spanglerogyrinae and Gyrininae was strongly supported. The two included genera of Gyrinini form a clade, and Enhydrini are the sister group of a monophylum comprising the remaining Enhydrini and Orectochilini. A branching pattern (Peltodytes + (Brychius + Haliplus)) within Haliplidae was confirmed. Algophilus, Apteraliplus and the Haliplus-subgenus Liaphlus form a clade. The generic status of the two former taxa is unjustified. The Phreatodytinae are the sister group of Noterinae, and Notomicrus (+ Speonoterus), Hydrocoptus, and Pronoterus branch off successively within this subfamily. The search for the larvae of Meru and a combined analysis of morphological and molecular data should have high priority., (© The Willi Hennig Society 2006.)
- Published
- 2006
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38. The endless file.
- Author
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Warren E Jr
- Subjects
- Female, Humans, Male, Psychotherapy, Social Control, Formal, Depression complications, Social Problems
- Published
- 1975
39. Role of the citizens' organization in a mental health crisis.
- Author
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Warren E Jr
- Subjects
- California, Community Mental Health Services, Humans, Politics, Public Opinion, Mental Health, Voluntary Health Agencies
- Published
- 1968
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