Projecting Regional and Subdivisional Populations through Simultaneous Equation Techniques     

JAMES D. TARVER  BILLY H. THOMPSON 《Growth and change》1976,7(1):13-23

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Tensile properties of synthetic,absorbable monofilament suture materials before and after incubation in phosphate-buffered saline     

Karen M. Tobias DVM  MS  DACVS  Calvin E. Kidd BS  Pierre-Yves Mulon DVM  DES  DACVS-LA  Xiaojuan Zhu PhD 《Veterinary surgery : VS》2020,49(3):550-560

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COMPARATIVE POPLITEAL AND MESENTERIC COMPUTED TOMOGRAPHY LYMPHANGIOGRAPHY OF THE CANINE THORACIC DUCT     

IAN R. MILLWARD  ROBERT M. KIRBERGER  PETER N. THOMPSON 《Veterinary radiology & ultrasound》2011,52(3):295-301

Thoracic duct computed tomography (CT) lymphangiograms were performed on seven clinically normal dogs. The appearance of the thoracic duct system was compared following administration of contrast medium through a mesenteric lymphatic vessel vs. ultrasound guided percutaneous injection into a popliteal lymph node using helical and sequential CT acquisition modes. The number of visible thoracic duct branches and the largest thoracic duct branch cross‐sectional area and mean Hounsfield units (HU) were determined from thoracic vertebra 9 to lumbar vertebra 1. Procedural time and patient discomfort were also assessed. Popliteal administration produced a successful thoracic duct lymphangiogram in eight of 11 dogs (73%) after two attempts, while mesenteric administration was successful in eight of 10 dogs (80%) after a single attempt. Popliteal lymphography required 46% of the time and was associated with less patient discomfort than mesenteric lymphangiography. The number of thoracic duct branches seen was not significantly different for either administration technique (P=0.256) or CT acquisition mode (P=0.417). However, the cross‐sectional area and mean HU of the largest thoracic duct branch were greater with mesenteric administration (P<0.001), and helical image acquisition (P<0.001). The thoracic duct branch number, size, and location were highly variable between dogs. Percutaneous popliteal lymphography appears to be an acceptable alternative to mesenteric lymphangiography for the detection of thoracic duct branches in the dog when using either helical or sequential CT acquisition modes.  相似文献   

COMPARISON OF RADIOGRAPHY AND ULTRASONOGRAPHY FOR DIAGNOSING SMALL‐INTESTINAL MECHANICAL OBSTRUCTION IN VOMITING DOGS     

AJAY SHARMA  MARGRET S. THOMPSON  PETER V. SCRIVANI  NATHAN L. DYKES  AMY E. YEAGER  SEAN R. FREER  HOLLIS N. ERB 《Veterinary radiology & ultrasound》2011,52(3):248-255

A cross‐sectional study was performed on acutely vomiting dogs to compare the accuracy of radiography and ultrasonography for the diagnosis of small‐intestinal mechanical obstruction and to describe several radiographic and ultrasonographic signs to identify their contribution to the final diagnosis. The sample population consisted of 82 adult dogs and small‐intestinal obstruction by foreign body was confirmed in 27/82 (33%) dogs by surgery or necropsy. Radiography produced a definitive result (obstructed or not obstructed) in 58/82 (70%) of dogs; ultrasonography produced a definitive result in 80/82 (97%) of dogs. On radiographs, a diagnosis of obstruction was based on detection of segmental small‐intestinal dilatation, plication, or detection of a foreign body. Approximately 30% (8/27) of obstructed dogs did not have radiographic signs of segmental small‐intestinal dilatation, of which 50% (4/8) were due to linear foreign bodies. The ultrasonographic diagnosis of small‐intestinal obstruction was based on detection of an obstructive lesion, sonographic signs of plication or segmental, small‐intestinal dilatation. The ultrasonographic presence or absence of moderate‐to‐severe intestinal diameter enlargement (due to lumen dilatation) of the jejunum (>1.5 cm) was a useful discriminatory finding and, when present, should prompt a thorough search for a cause of small‐intestinal obstruction. In conclusion, both abdominal radiography and abdominal ultrasonography are accurate for diagnosing small‐intestinal obstruction in vomiting dogs and either may be used depending on availability and examiner choice. Abdominal ultrasonography had greater accuracy, fewer equivocal results and provided greater diagnostic confidence compared with radiography.  相似文献   

Influence of prenatal maternal anxiety on emotionality in young rats     

THOMPSON WR 《Science (New York, N.Y.)》1957,125(3250):698-699

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Coumestrol,a new estrogen isolated from forage crops     

BICKOFF EM  BOOTH AN  LYMAN RL  LIVINGSTON AL  THOMPSON CR  DEEDS F 《Science (New York, N.Y.)》1957,126(3280):969-970

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Modelling the impacts of removing seal predation from Atlantic salmon, Salmo salar, rivers in Scotland: a tool for targeting conflict resolution     

J. R. A. BUTLER  S. J. MIDDLEMAS  I. M. GRAHAM  P. M. THOMPSON  & J. D. ARMSTRONG 《Fisheries Management and Ecology》2006,13(5):285-291

Abstract  Bioenergetics were used to model the potential impacts on adult Atlantic salmon, Salmo salar L., stocks and rod fisheries of removing harbour seals, Phoca vitulina L., from three rivers of different scales in the Moray Firth, Scotland, viz: the Spey (large), Conon (medium) and Moriston (small). Overall, seals had the greatest impact on the Moriston, where removal of a single animal could increase cumulative catch by 17% during the fishing season. On the Conon and Spey the impacts were negligible, and resulted in increased catches of <1% annually. On all rivers eliminating seal predation had the greatest impact during the spring due to the smaller size of spring salmon sub-stocks. A generalised model of seal removal illustrated that stocks and catches increased by >33% in rivers with monthly rod catches ≤10 fish, but declined to <10% for rivers with catches >34 fish. The outputs of the models are qualitative, but provide a management tool for targeting action to resolve seal-salmon fishery conflict. Smaller salmon population units, and spring salmon sub-stocks and fisheries in particular, are most vulnerable to predation. The merit of this approach is discussed regarding the management of Special Areas of Conservation for salmon and seals.  相似文献   

Potential yield estimates of unexploited pelagic fish stocks in Lake Malawi     

A.B. THOMPSON  & E.H. ALLISON 《Fisheries Management and Ecology》1997,4(1):31-48

The biomass of the offshore pelagic fish of Lake Malawi was estimated at 168 400 t and is currently unexploited by a fishery. This biomass comprises, by weight, 81% Cichlidae, 15% catfish and 4% Cyprinidae. A Beverton and Holt dynamic pool model was used to estimate potential sustainable yields and to forecast likely changes to the size and age structure of the fish populations under various levels of fishing effort. The total sustainable yield from the offshore fish population was estimated at 34 000 t yr^–1 and, if harvested, would almost double the yield of fish from the lake. Potential yields on an areal basis are low (14.2 kg ha^–1 yr^–1), but are consistent with expectations from studies of pelagic ecosystem productivity.  相似文献   

PIKE GILL NETTING IN WINDERMERE     

G. J. THOMPSON  T. B. BAGENAL 《Aquaculture Research》1973,4(4):97-97

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Yield and compensatory growth of lucerne following simulated winter-kill     

D. G. STOUT  D. T. THOMPSON 《Grass and Forage Science》1994,49(4):401-404

Lucerne ( Medicago sativa L.) sown at 2·8-11·2 kg ha⁻¹ in spring was thinned in the autumn by digging plants from alternate 15- or 30-cm lengths of row. Both thinning treatments decreased the subsequent year stand density by 34%. Yields the following year were reduced by 24 and 17% for the 15- and 30-cm treatments respectively, and the next year by 10% for both treatments. Thinning effects were similar at all sowing rates. During the year following thinning, plants did not grow larger in response to the thinning. Thus, development of compensatory growth by lucerne plants following sudden stand thinning is slow.  相似文献