Nanoribbon waveguides for subwavelength photonics integration     

Law M  Sirbuly DJ  Johnson JC  Goldberger J  Saykally RJ  Yang P 《Science (New York, N.Y.)》2004,305(5688):1269-1273

Although the electrical integration of chemically synthesized nanowires has been achieved with lithography, optical integration, which promises high speeds and greater device versatility, remains unexplored. We describe the properties and functions of individual crystalline oxide nanoribbons that act as subwavelength optical waveguides and assess their applicability as nanoscale photonic elements. The length, flexibility, and strength of these structures enable their manipulation on surfaces, including the optical linking of nanoribbon waveguides and other nanowire elements to form networks and device components. We demonstrate the assembly of ribbon waveguides with nanowire light sources and detectors as a first step toward building nanowire photonic circuitry.  相似文献   

The effect of group 5 chromosomes on the free and total galactosyldiglycerides in wheat endosperm     

William R. Morrison  Lesley J. Wylie  Colin N. Law 《Journal of Cereal Science》1984,2(3):145-152

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独立样本t检验的Excel和SPSS分析     

高艺祥  杨民红  李兰会 《畜牧与饲料科学》2018,39(10):79-82

以独立样本t检验的Excel和SPSS分析为例，解释说明随机设计两样本数据的推断分析过程，以试验研究中两个处理的比较分析结果来解决实际的问题。针对两独立样本t检验来说，运用Excel工具所得的数据结果更加的完整和准确但是操作复杂，运用SPSS工具操作简单方便但是数据却没有Excel所得出的精准，由此说明，采用独立样本t检验的Excel和SPSS2种分析工具时应根据实际情况来选择。  相似文献   

Swine veterinarians — Key players in the pork production chain     

Jessica Law 《The Canadian veterinary journal. La revue veterinaire canadienne》2021,62(5):515

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Roost site selection by southern forest bat Vespadelus regulus and Gould's long-eared bat Nyctophilus gouldi in logged jarrah forests; south-western Australia     

Paul W. Webala  Michael D. Craig  Bradley S. Law  Adrian F. Wayne  J. Stuart Bradley 《Forest Ecology and Management》2010

Information on roosting requirements and responses to forest management is integral to effectively conserve and manage bat populations. Tree hollows are especially important for roosting bats given the long time taken for hollows to form. We used radiotelemetry to compare roost site selection in two species, Vespadelus regulus and Nyctophilus gouldi, in logged jarrah forests of south-western Australia. We compared characteristics of roost trees and forest structure around roost trees (n = 48) with randomly located plots at a local roost tree level (n = 90) in February and March 2009. For landscape features, we compared roost trees with randomly selected trees in the broader landscape that had cavities or exfoliating bark (n = 204). V. regulus roosted solely in hollows that were located predominantly in contemporarily unlogged buffers and mature forest while N. gouldi used a broader range of roost types, located in contemporarily unlogged buffers and mature forest and in retained habitat trees in gap release and shelterwood creation silvicultural treatments. In contrast with N. gouldi, which selected hollows or crevices under bark near the ground and close to vegetation, V. regulus used hollows that were high above ground and had little surrounding vegetation. Both species preferred large trees, in intermediate or advanced stages of decay and crown senescence. Bats changed roosts frequently, with short distances between subsequent roosts, suggesting a degree of spatial fidelity. Contemporarily unlogged buffers and mature forest contained higher densities of trees with hollows than gap release and shelterwood creation areas, potentially providing more alternate bat roosts. Our results demonstrate the importance of mature forest and unlogged buffers as bat roost sites in logged jarrah forests of south-western Australia, but the area of old forest required by these and co-occurring bat species remains to be determined.  相似文献   

Cross‐sectional survey of health management and prevalence of vector‐borne diseases,endoparasites and ectoparasites in Samoan dogs          下载免费PDF全文

RJ Carslake  KE Hill  K Sjölander  SF Hii  D Prattley  E Acke 《Australian veterinary journal》2017,95(12):462-468

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Epizootics of sudden death in tammar wallabies (Macropus eugenii) associated with an orbivirus infection     

KA Rose  PD Kirkland  RJ Davis  D Blumstein  LI Pritchard  KM Newberry  RA Lunt 《Australian veterinary journal》2012,90(12)

Epizootics of sudden death in tammar wallabies (Macropus eugenii) occurred at six research facilities and zoological gardens in New South Wales, Australia, in late 1998 and at one Queensland research facility in March 1999. There were 120 confirmed tammar wallaby deaths during this period; however, population censuses indicated that up to 230 tammar wallabies may have died. The majority of animals died without premonitory signs. A small proportion of wallabies exhibited increased respiratory rate, sat with a lowered head shortly before death or were discovered in lateral recumbency, moribund and with muscle fasciculations. Gross postmortem findings consistently included massive pulmonary congestion, mottled hepatic parenchyma and subcutaneous oedema throughout the hindlimbs and inguinal region. Approximately 30% of the animals examined also had extensive haemorrhage within the fascial planes and skeletal muscle of the hindlimb adductors, inguinal region, ventral thorax, dorsal cervical region and perirenal retroperitoneal area. The tissues of affected animals became autolytic within a short period after death. Bacteriological examination of tissues from 14 animals did not provide any significant findings. Toxicological examination of the gastric and colonic contents of four animals did not reveal evidence of brodifacoume or other rodenticides. Viruses from the Eubenangee serogroup of the Orbivirus genus were isolated from the cerebral cortex of nine, and the myocardium of two, tammar wallabies and the liver and intestine of another tammar wallaby. A similar orbivirus was also isolated from the cerebrospinal fluid of another tammar wallaby that died suddenly. The disease agent appears to be a previously unrecognised orbivirus in the Eubenangee serogroup. This is the first report of epizootics of sudden deaths in tammar wallabies apparently associated with an orbivirus infection.  相似文献   

Necropsy or autopsy? It's all about communication!     

Law M  Stromberg P  Meuten D  Cullen J 《Veterinary pathology》2012,49(2):271-272

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Neoplastic and nonneoplastic liver lesions induced by dimethylnitrosamine in Japanese medaka fish   总被引：1，自引：0，他引：1  

Hobbie KR  DeAngelo AB  George MH  Law JM 《Veterinary pathology》2012,49(2):372-385

Small fish models have been used for decades in carcinogenicity testing. Demonstration of common morphological changes associated with specific mechanisms is a clear avenue by which data can be compared across divergent phyletic levels. Dimethylnitrosamine, used in rats to model human alcoholic cirrhosis and hepatic neoplasia, is also a potent hepatotoxin and carcinogen in fish. We recently reported some striking differences in the mutagenicity of DMN in lambda cII transgenic medaka fish vs. Big Blue(?) rats, but the pre-neoplastic and neoplastic commonalities between the two models are largely unknown. Here, we focus on these commonalities, with special emphasis on the TGF-β pathway and its corresponding role in DMN-induced hepatic neoplasia. Similar to mammals, hepatocellular necrosis, regeneration, and dysplasia; hepatic stellate cell and "spindle cell" proliferation; hepatocellular and biliary carcinomas; and TGF-β1 expression by dysplastic hepatocytes all occurred in DMN-exposed medaka. Positive TGF-β1 staining increased with increasing DMN exposure in bile preductular epithelial cells, intermediate cells, immature hepatocytes and fewer mature hepatocytes. Muscle specific actin identified hepatic stellate cells in DMN-exposed fish. Additional mechanistic comparisons between animal models at different phyletic levels will continue to facilitate the interspecies extrapolations that are so critical to toxicological risk assessments.  相似文献   

A technique for the photography of surface morphology of bacterial colonies     

RJ CAMPBELL 《Australian veterinary journal》1989,66(9):303-304

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