Reviews section     

Dr Bill Symondson  W. O. C. Symondson  Dr Peter McEwen  Simon Oxley  Dr Patthumal Beevi  Houston Hobbs  Keith Harris  Dr R. T. Plumb  Professor P. G. Mantle  Professor J. Hemingway  Dr Barbara B. Shew  R. M. Baker  Professor P. A. Langley  David Dent 《Integrated Pest Management Reviews》1996,1(2):111-123

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Stabilization of Sacroiliac Luxation in 40 Cats Using Screws Inserted in Lag Fashion     

Chris Shales  A. Moores  E. Kulendra  C. White  M. Toscano  S. Langley‐Hobbs 《Veterinary surgery : VS》2010,39(6):696-700

Objective: To (1) identify prognostic indicators for stability after stabilization of sacroiliac luxation with screws inserted in lag fashion and (2) report dorsoventral dimensions of the sacrum in cats. Study Design: Multicenter retrospective study. Sample Population: Cats (n=40) with sacroiliac luxation. Methods: Case records and radiographs of cats presented at the Queen's Veterinary School Hospital Cambridge and the Royal Veterinary College Hatfield for screw fixation of sacroiliac luxation were reviewed. Dorsoventral dimensions of 15 feline cadaveric sacral bodies were measured to identify the appropriate implant size for use in fixation with screws inserted in lag fashion. Results: Of 40 cats, 13 had left, 14 right, and 13 bilateral sacroiliac luxations. Of 48 screws analyzed, 42 (87.5%) were placed within the sacral body or exited ventrally and 6 (12.5%) were considered malpositioned. Screw purchase within the sacrum was statistically different between unstable and stable repairs (P=.001). Using confidence intervals for screw length within the sacrum and effect on stability, the lowest screw depth that contained 95% of the screws that did not loosen was ∼60% of the sacral width. Mean dorsoventral sacral dimension at its narrowest point was 5.9±1.14 mm. There was no significant difference in the incidence of implant loosening between those luxations that were 100% reduced and those that were <100% reduced (P=.7837). Conclusions: Screw purchase within the feline sacrum of at least 60% of the sacral width significantly reduces the risk of loosening. Clinical Relevance: Screw placement to a depth of 60% of the width of the feline sacrum is recommended.  相似文献   

A comparative study of complement activation     

D A Higgins  D J Langley 《Veterinary immunology and immunopathology》1985,9(1):37-51

Antisera to sheep erythrocytes (E) were raised in cattle, rabbits, mice, hamsters, guinea-pigs, ferrets, badgers, hedgehogs and fowls. Cross activation of total haemolytic complement (THCA) examined all combinations of sensitized sheep E and normal sera (including human); kinetic assays examined the lysis of E sensitized with rabbit antibodies. From the same species, all combinations of normal serum and xenogeneic E were used to measure total alternative pathway activity (TAPA); TAPA was also activated by rabbit and sheep E in titrations and in agarose gels, and examined kinetically against rabbit E. Ox, rabbit and fowl sera were low in THCA, guinea-pig complement was universally active, while human complement showed marked selectivity; ferret, badger and hedgehog sera were activated to high titres but probably via the alternative pathway. In studies of TAPA an inverse relationship existed between serum complement activities and the activating abilities of E from the same species. The most efficient activators of alternative pathway were E from rabbits and laboratory rodents, while the sera with broadest response were badger, ferret and fowl. Kinetic studies of TAPA showed that initiation of lysis and subsequent completion of lysis could occur with different efficiencies, suggesting these events reflected separate events in complement activation.  相似文献   

A PRELIMINARY ACCOUNT OF THE SOLAR ECLIPSE OF MXIAY 28, 1900, AS OBSERVED BY THE SMITHSONVIAN EXPEDITION     

Langley SP 《Science (New York, N.Y.)》1900,11(286):974-980

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False report of the fall of a meteorite in western Pennsylvania     

Langley SP 《Science (New York, N.Y.)》1885,6(141):336-337

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CARNEGIE INSTITUTION     

Pickering EC  Boss L  Hale GE  Langley SP  Newcomb S 《Science (New York, N.Y.)》1902,15(379):549-551

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Minimizing bias in a case-control study of farm injury     

Day L  Langley J  Voaklander D  Sim M  Wolfe R  Dosman J  Hagel L  Ozanne-Smith J 《Journal of agricultural safety and health》2005,11(2):175-184

We report on our strategies to minimize bias in the FIRM study, a prospective case-control study of risk factors for serious farmwork-related injury. The study base is adult males working on farms in the catchment regions of 14 larger regional hospitals in one Australian state. Cases are identified on presentation to the emergency departments, while age-matched controls are recruited via random telephone survey. Eligibility criteria for cases include a maximum abbreviated injury severity score of at least 2, to minimize the potential for selection bias against those with less severe injuries treated outside the hospital system. An audit at one hospital showed that 93% of eligible patients identified in the electronic surveillance system had been approached regarding participation. Results to date show that 38% of those approached decline to have their contact details made available to researchers. Those who decline are asked to complete two key questions to enable comparison with those who participate. Control recruitment relies on telephoning regional households until an individual from the study base, satisfying the matching criteria, is identified. This process minimizes the potential for selecting against farm workers who may live off-farm. Ninety-four percent of age-matched eligible controls have participated to date. We are testing a dynamic pool of individuals identified as study base members but not matched on the first call to determine its effect on the probabilities of selection. Our strategies appear to be minimizing detection, selection, and response bias, thereby enhancing the validity of the study results.  相似文献   

Feline shoulder luxation: a cadaveric study of injury and repair using ligament prostheses     

D. Carwardine  S. Langley‐Hobbs 《The Journal of small animal practice》2019,60(8):463-470

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Effects of immunocontraception on a suburban population of white-tailed deer Odocoileus virginianus     

Allen T. Rutberg  Ricky E. Naugle  Irwin K.M. Liu 《Biological conservation》2004,116(2):243-250

Abundant populations of white-tailed deer (Odocoileus virginianus) in North America have altered the structure of some forest communities and caused serious conflicts with farmers, gardeners, and motorists, encouraging the search for novel techniques to control populations of deer and other wildlife. We administered the porcine zona pellucida (PZP) immunocontraceptive vaccine to female white-tailed deer living on the 233-ha campus of the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland, USA. Although some tested PZP preparations proved more effective than others, the number of fawns produced per female was significantly lower in treated than untreated females. Following the onset of contraceptive treatments, the population declined by an average of 7.9% per year, and population declines were larger following years when a higher proportion of females was treated. High mortality due largely to deer-vehicle collisions and low population fertility associated with high deer densities facilitated the observed population decline.  相似文献   

Plate failure by bending following tibial fracture stabilisation in 10 cats          下载免费PDF全文

A. P. Morris  A. A. Anderson  D. M. Barnes  S. R. Bright  C. S. Knudsen  D. D. Lewis  A. Pozzi  S. J. Langley‐Hobbs 《The Journal of small animal practice》2016,57(9):472-478

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