A rather accurate method to determine Vitamine Deficiency from Urine

Zusammenfassung Die Untersuchung der Ausscheidung im Urin nach Vitaminbelastung ist ein zur Bestimmung der Hypovitaminose geeignetes Verfahren, wenn wir die Belastungsdose in Abständen von je 2 Stunden darreichen und die Einzelausscheidungswerte kurvenmäßig darstellen. Die Kurven ermöglichen eine Differenzierung zwischen Hypovitaminose und Ausscheidungsstörung und die Beurteilung des Grades der Hypovitaminose.     

Linderazulene,a new naturally occurring pigment from the gorgonianParamuricea chamaeleon

Summary The purple pigment of the gorgonianParamuricea chamaeleon has been isolated and identified as linderazulene (I).We thank Dr K. Takeda for linderazulene spectra, and NATO for a grant (to S.I. and R.H.T.) in support of this work.     

Effects on prostaglandins F2α, I2, and indomethacin on isolated coronary arteries from healthy and alloxandiabetic dogs

Summary Contractile responses of isolated coronary arteries from healthy and alloxan-diabetic dogs to prostaglandin F₂ were enhanced by indomethacin and inhibited by prostaglandin I₂. The potentiation by indomethacin was more prominent in diabetic vessels than in normal arteries.     

Uncovering the overlapping community structure of complex networks in nature and society

Many complex systems in nature and society can be described in terms of networks capturing the intricate web of connections among the units they are made of. A key question is how to interpret the global organization of such networks as the coexistence of their structural subunits (communities) associated with more highly interconnected parts. Identifying these a priori unknown building blocks (such as functionally related proteins, industrial sectors and groups of people) is crucial to the understanding of the structural and functional properties of networks. The existing deterministic methods used for large networks find separated communities, whereas most of the actual networks are made of highly overlapping cohesive groups of nodes. Here we introduce an approach to analysing the main statistical features of the interwoven sets of overlapping communities that makes a step towards uncovering the modular structure of complex systems. After defining a set of new characteristic quantities for the statistics of communities, we apply an efficient technique for exploring overlapping communities on a large scale. We find that overlaps are significant, and the distributions we introduce reveal universal features of networks. Our studies of collaboration, word-association and protein interaction graphs show that the web of communities has non-trivial correlations and specific scaling properties.     

Prolongation of skin homograft survival by local intralymphatic radioisotope injections

Zusammenfassung Injektion von¹³¹I-Lipiodol oder¹¹¹Ag-Kolloid beim Kaninchen in ein Ohrlymphgefäss verzögert die Abstossung eines Hautlappen-Hormotransplantes am Ohre wesentlich. Bei der Untersuchung der Verteilung intralymphatisch verabreichter Radioisotopen in den einzelnen Geweben wurde festgestellt, dass etwa 50% des¹¹¹Ag-Kolloids, aber unter 10% des¹³¹I-Lipiodols von den regionären Lymphknoten aufgenommen wird und dass Lipiodol hauptsächlich im Lungengewebe, Ag-Kolloid in der Leber gespeichert wird.