Turbid Medium
Mostrando 1-12 de 21 artigos, teses e dissertações.
-
1. Editorial
Information is presented on morphological variation in the frog, Phyllomedusa ecuatoriana, with a description ot the tadpole, vocalizations, and notes on its natural history and distribution, based on material recently collected in the Cordillera del Cóndor, Zamora Chinchipe Province, Ecuador. Phyllomedusa ecuatoriana is of médium size (male SVL length 46.
Pap. Avulsos Zool. (São Paulo). Publicado em: 2014
-
2. Métodos simplificados para obtenção de distribuição de luz em tecidos biológicos: aplicação para terapia fotodinâmica / Simplified methods for obtaining the light distribution in biological tissues
The determination of light distribution within biological tissues is important for applications such as photodynamic therapy and photodiagnostics. Most applications use light that reaches the tissue surface and propagates along the depth. The combination of absorption and scattering leads to light intensity profiles which determines the therapeutic action. C
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/06/2011
-
3. Estudo geoquímico da bacia do ama e avaliação da qualidade de água
The quality of water in a drainage basin reflects the natural processes of a water catchment and the changes of environmental conditions reflect on physical and chemical water chemistry. The present work was realized in two drainages on Gama Catchment, Gama brook and Cedro stream, whose waters discharge into Paranoá Lake (Brasília, Federal District). The a
Publicado em: 2008
-
4. Fluorescence tomographic imaging in turbid media using early-arriving photons and Laplace transforms
We present a multichannel tomographic technique to detect fluorescent objects embedded in thick (6.4 cm) tissue-like turbid media using early-arriving photons. The experiments use picosecond laser pulses and a streak camera with single photon counting capability to provide short time resolution and high signal-to-noise ratio. The tomographic algorithm is bas
The National Academy of Sciences of the USA.
-
5. Physicochemical and Biological Properties of Fibrous Pseudomonas Bacteriophages
Two fibrous Pseudomonas phages, Pf1 and Pf2, have been isolated and characterized. The phages were serologically related and were indistinguishable morphologically when viewed by electron microscopy. Both phages formed minute turbid plaques. A simple method was devised for easy differentiation of such plaques from the bacterial lawn. The infected bacteria co
-
6. Lecithin agar for detection of microbial phospholipases.
Lecithin agar was developed on which phospholipase C produced turbid zones and phospholipase A produced clear zones. Reactions on lecithin agar agreed 74% of the time with reactions in egg yolk broth. On lecithin agar, interpretation was easier, phospholipase A was detectable, and opaque zones were visible 1 or 2 days earlier than on egg yolk agar. All const
-
7. Time-resolved optical diffusion tomographic image reconstruction in highly scattering turbid media
The image of an object hidden in highly scattering media was reconstructed using a fast, noise-resistant algorithm newly applied to diffusion tomography. A pulsed light source producing scattered and transmitted light is examined at multiple times. Multiple source detector pairs around the medium are used to obtain data in many different directions. An
The National Academy of Sciences of the USA.
-
8. Complexing of Fatty Acids by Triton WR1339 in Relation to Growth of Mycobacterium tuberculosis
Mycobacterium tuberculosis grew in the presence of toxic concentrations of free fatty acids when an adequate amount of triton WR1339 was added to the medium. Triton produced a solubilizing effect on turbid suspensions of fatty acids, indicating the formation of a detergent-lipid complex. Oleic acid complexed with triton served as a source of carbon for growt
-
9. Paradoxical Effect of Caspofungin: Reduced Activity against Candida albicans at High Drug Concentrations
Resistance problems with caspofungin, an echinocandin inhibitor of fungal cell wall glucan synthesis, have been rare. We noted paradoxical turbid growth of Candida albicans isolates in broth in some high (supra-MIC) concentrations. Among isolates submitted for susceptibility testing and screened at drug concentrations up to 12.5 μg/ml, the frequency was 16%
American Society for Microbiology.
-
10. Parainfluenza 3 virus: plaque-type variants lacking neuraminidase activity.
Virus clones lacking detectable neuraminidase activity (SC-YN and M-YN) as well as those possessing it (LT-910N and LT-YN) were isolated from bovine strains of parainfluenza 3 virus. LT-910N and LT-YN viruses produced large turbid plaques in MDBK cells, and SC-YN virus produced small clear plaques. Incorporation of a bacterial neuraminidase in agar overlay m
-
11. Agar Medium for Differential Enumeration of Lactic Streptococci1
An agar medium containing arginine and calcium citrate as specific substrates, diffusible (K2HPO4) and undiffusible (CaCO3) buffer systems, and bromocresol purple as the pH indicator was developed to differentiate among lactic streptococci in pure and mixed cultures. Milk was added as the sole source of carbohydrate (lactose) and to provide growth-stimulatin
-
12. Gelatin agar medium for detecting gelatinase production by anaerobic bacteria.
A new medium, Lombard-Dowell gelatin agar, was developed for detecting gelatinase activity by anaerobic bacteria. The medium contained: Trypticase (BBL Microbiology Systems), 5.0 g; yeast extract (Difco Laboratories), 5 g; sodium chloride, 2.5 g; sodium sulfite, 0.1 g; L-tryptophan, 0.2 g; L-cystine, 0.4 g; hemin, 10.0 mg; vitamin K1, 10.0 mg; agar, 20.0 g;