Cats in groups     

Mills MG 《Science (New York, N.Y.)》1994,266(5191):1738-1739

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Conference on Scientific Manpower (X5)     

Mills TJ 《Science (New York, N.Y.)》1958,127(3295):431-435

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Mechanical stress and reactivity in organic solids     

McBride JM  Segmuller BE  Hollingsworth MD  Mills DE  Weber BA 《Science (New York, N.Y.)》1986,234(4778):830-835

Organic single crystals provide an ideal model for studying the factors that influence chemical processes in structured media. Reaction trajectories are well defined and reveal the influence of spontaneous mechanical stresses equivalent to tens of thousands of atmospheres. Analysis of molecular and crystal structures helps to explain both local mechanical properties, which influence reactions, and bulk properties such as melting point, compressibility, and surface energy.  相似文献   

Predatory Dinosaurs from the Sahara and Late Cretaceous Faunal Differentiation     

PC Sereno  DB Dutheil  M Iarochene  HCE Larsson  GH Lyon  PM Magwene  CA Sidor  DJ Varricchio  JA Wilson 《Science (New York, N.Y.)》1996,272(5264):986-991

Late Cretaceous (Cenomanian) fossils discovered in the Kem Kem region of Morocco include large predatory dinosaurs that inhabited Africa as it drifted into geographic isolation. One, represented by a skull approximately 1.6 meters in length, is an advanced allosauroid referable to the African genus Carcharodontosaurus. Another, represented by a partial skeleton with slender proportions, is a new basal coelurosaur closely resembling the Egyptian genus Bahariasaurus. Comparisons with Cretaceous theropods from other continents reveal a previously unrecognized global radiation of carcharodontosaurid predators. Substantial geographic differentiation of dinosaurian faunas in response to continental drift appears to have arisen abruptly at the beginning of the Late Cretaceous.  相似文献   

Aspects of the management of cheetahs, Acinonyx jubatus jubatus, trapped on Namibian farmlands     

L.L Marker  A.J Dickman  M.G.L Mills 《Biological conservation》2003,114(3):401-412

The Namibian cheetah population has recently undergone serious decline due to human-mediated removals, and investigating the rates and causes of such removals is an important aspect of the future management of cheetah populations outside protected areas. We examined cheetahs that were reported live-trapped or killed on Namibian farmlands between 1991 and 1999. A perceived threat to livestock or game led to the vast majority of live captures and to almost half of the cheetah deaths investigated. Despite this, livestock predation from cheetahs appeared to be minimal, and was usually perpetrated by cheetahs with injuries. Most of the cheetahs were trapped in groups, and cheetahs’ relative sociality leads to the easy removal of entire social units. Long-term monitoring must include detailed consideration of these indiscriminate removals, as they involve many cheetahs, fluctuate between years, often go unreported, and are likely to have a serious impact on cheetah populations outside protected areas.  相似文献   

Year book of agricultural co-operation, 1980: by The Plunkett Foundation. 1981. vi + 277 pp. Price: £7·00 (Paperback)     

F.D. Mills 《Agricultural Systems》1982,8(4):314-315

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Incidence of bovine mucosal disease in Connecticut   总被引：1，自引：0，他引：1  

J H Mills  R E Luginbuhl 《The Cornell veterinarian》1965,55(4):583-590

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A disease resembling malignant catarrhal fever in captive white-tailed deer in Saskatchewan.          下载免费PDF全文

G Wobeser  J A Majka    J H Mills 《The Canadian veterinary journal. La revue veterinaire canadienne》1973,14(5):106-109

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Effect of suppression of prolactin secretion on adipose lipogenesis in the postpartum beef cow     

S E Mills  R P Lemenager  L A Horstman 《Journal of animal science》1989,67(11):2904-2912

Effects of inhibiting prolactin secretion and of calf removal at 3 d postpartum on the lipogenic capacity of s.c. adipose tissue were investigated in postpartum beef cows. The rate of fatty acid synthesis (SYN) from [1-14C]acetate and the activity of fatty acid synthetase (FAS) were assessed on adipose tissue obtained by biopsy at 1, 2, 4, 8 and 10 wk postpartum. Administration of bromocriptine (BR; a drug that suppresses prolactin secretion in rats) between d 7 and 42 postpartum decreased average serum prolactin concentrations nearly 90%, but BR had no effect on lipogenic rates at any week compared to control (CO) cows. Rates of SYN (nmol acetate.min-1.g-1 tissue) increased linearly in CO and BR cows from a nadir of 3.1 at wk 1 to 19.3 by wk 8. Within CO and BR, cows with the greater energy intake relative to requirements for lactation (energy balance) had the faster rates of recovery of SYN. Cows whose calves were weaned early (3 d) showed rapid early increases in SYN, reaching an average maximum rate of 46.2 by wk 2. Activity of FAS generally followed a pattern similar to that of SYN for all groups. Results indicate that prolactin is not responsible for low rates of postpartum lipogenesis in s.c. adipose tissue and that energy intake influences the rate of recovery.  相似文献   

Reduction of radiocaesium absorption by sheep consuming feed contaminated with fallout from Chernobyl     

M Phillippo  S Gvozdanovic  D Gvozdanovic  J K Chesters  E Paterson  C F Mills 《The Veterinary record》1988,122(23):560-563

Two compounds, a zeolite, clinoptilolite, and a ferrocyanide, potassium hexacyanocobalt (II) ferrate (II), were found to be the most effective adsorbers of caesium in vitro. When used in vivo they significantly reduced the absorption of caesium by sheep fed contaminated herbage. These compounds did not alter the rate of excretion of pre-absorbed caesium, which varied with the time from cessation of contamination.  相似文献