In laboratory and industrial cultivation of marine microalgae, it is customary to enrich cultures with macronutrients (N, P), chelated trace metals, vitamins at ~104× concentrations found in nature obtain high culture densities. Other naturally occurring growth-promoting compounds local seawater are not enriched remain environmental concentrations. Microalgae may thus be deprived the mutualisti...

UNLABELLED The differentiation between exudates and transudates is the initial step in the analysis of pleural effusions as it often gives an indication of the underlying pathophysiologic process, the differential diagnosis, and the need for further investigations. Four classifications have been suggested in the literature: Light's criteria, serum-effusion albumin gradient, effusion cholesterol...

Objectives: To evaluate the usefulness of diverse combinations of pleural cholesterol concentration, pleural or serum protein, and lactate dehydrogenase (LDH) levels for the differentiation ofpleural exudates and transudates. Design: Prospective laboratory study of pleural effu¬ sions. Setting: Medical school hospital. Patients: One hundred eighty consecutive internal medicine ward patients in ...

To the Editor: Categorization of pleural effusions as transudates or exudates assists diagnostic and therapeutics decisions. To meet the criteria of Light et al. (1 ) for exudates, an effusion must have at least one of the following: a ratio of pleural fluid (PF) protein to serum protein .0.5, a ratio of PF to serum lactic dehydrogenase (LD) .0.6, and PF LD more than two-thirds the upper limit ...

Five known sesquiterpenoids, solavetivone, lubimin, lubiminoic acid, aethione and lubiminol were isolated from the root exudates recovered from Solanum aethiopicum by a newly proposed method using charcoal. Quantitative analysis of the sesquiterpenoids in the root exudates of S. aethiopicum and S. melongena suggested that relatively large amounts of the sesquiterpenoids were exuded from the roo...

Retinal exudates are a characteristic feature of many retinal diseases such as Diabetic Retinopathy. We address the development of a method to quantitatively diagnose these random yellow patches in colour retinal images automatically. After a colour normalisation and contrast enhancement preprocessing step, the colour retinal image is segmented using Fuzzy C-Means clustering. We then classify t...

Rocha e Silva and Rosenthal (1) have reported that the exudates from burnt rat skin contain histamine, bradykinin, adenosine derivatives and possibly serotonin and other as yet unidentified pharmacologically active and toxic substances. Hodson (2) has reported the peripheral antiserotonin activity of B.W. 501 C 67 (α-anilino-N-2-m-chlorophenoxypropyl acetamidine hydrochloride monohydrate)...

Exudates in retinal images are one of the early signs of the vision-threatening diabetic retinopathy and diabetic macular edema. Early diagnosis is very helpful in preventing the progression of the disease. In this work, we propose a fully automatic exudate segmentation method based on the state-of-the-art residual learning framework. With our proposed end-to-end architecture the training is do...