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991.
Diana De Santis Mauro Moresi Anna Maria Gallo Maurizio Petruccioli 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2005,80(9):1072-1079
Monascus purpureus C322 was cultivated on well‐established production media to yield prevailingly red or orange pigment‐rich ethanolic extracts. Once these extracts had been diluted by an overall factor of 50, they were used as such to dye raw wool standard specimens differently premordanted using alum or stannic chloride. Independently of the mordant used, the specimens dyed with the red pigment‐rich extracts showed a pale red colour tending to pink, whereas the specimens dyed with the orange pigment‐rich extracts exhibited a more definite orange colour. By carrying out a few colourfastness standard tests (manual washing at 40 °C, acid and basic perspiration and hot pressing), stannic chloride‐premordanted wool specimens dyed with the red pigment‐rich extracts were found to be less resistant to acid and basic perspiration than their orange counterparts. Since the production of the orange pigment‐rich ethanolic extracts appeared to be more cost‐effective than that of their red counterparts, the former might support the present demand for colorants of natural origin in the textile sector. Copyright © 2005 Society of Chemical Industry 相似文献
992.
993.
F Villalba Ferrer JC Bernal Sprekelsen CA Fuster Diana J Asensi Pérez A Vázquez Prado MJ García Coret F Puchades Gil R Trullenque Peris 《Canadian Metallurgical Quarterly》1997,89(10):759-63, 765-9
OBJECTIVE: Failure to diagnose synchronous tumors leads to errors in patient treatment and prognosis. The existence of metachronous tumors requires strict patient follow-up to ensure early identification of the second tumor. The present study evaluates the results obtained in the application of a structured procedure for the diagnosis and follow-up of multiple colorectal carcinoma. MATERIALS AND METHODS: A structured procedure was used to follow for 5 years a group of 12 patients with multiple colorectal tumors (7 synchronous and 5 metachronous) of a series of 450 colorectal neoplasms. RESULTS: Six synchronous tumors were diagnosed preoperatively and one intraoperative. Of the 5 metachronous neoplasms, 4 strictly adhered to the follow-up protocol, as a result of which the second tumor was detected at an early stage. The remaining case involved no follow-up, and the second tumor was diagnosed in an advanced stage as a result of bowel occlusion. The left colon was predominantly involved; polyps were detected in 9 cases, while two patients had 3 malignancies detected by histopathological study. COMMENTS: We emphasize the need for a full evaluation of the colon in all patients with colorectal carcinoma. In the case of incomplete preoperative evaluation, intraoperative colonoscopy is to be considered; if this is not feasible it should be performed one month after surgery. A structured follow-up procedure permits the early detection of these tumors, there by improving patient prognosis. 相似文献
994.
995.
The objective of the study was to define the longitudinal evolution of cardiac rhabdomyomas (CR) in patients with tuberous sclerosis complex (TSC). A cohort of patients with TSC who had undergone videotaped echocardiographic (ECHO) examination during the 10-year interval (1984-1994) were retrospectively studied by reviewing and quantifying the CR appearance and associated cardiac abnormalities in sequentially obtained ECHO examinations. Sixteen patients with TSC (8 males) underwent a total of 35 recorded studies. Ten of the 16 (62.5%) had CR identified at initial study; none were found in the atria. Localization was the ventricular walls as compared with the ventricular septum by a ratio of 2:1. The number of CRs sequentially studied declined as follows; initial study: 23 lesions in 10 patients; second study: 16 lesions in 8 patients; third study: 12 lesions in 5 patients; and fourth study: 4 lesions in 2 patients. Total CR size index declined at each study as follows: initial index of 2,684; second index of 1,746 (-35% from initial); third index 1,141 (-57% from initial); and fourth index 705 (-74% from initial). Complete spontaneous regression of CR was seen by age 6 years with prolonged gradual resolution thereafter. Two patients had bicuspid aortic valves and two had conduction defects. Patients with TSC who have CR can be expected to experience a decline in both the number and size of CR over time; early complete regression on ECHO occurs before age 6 years. 相似文献
996.
Diana A. Levina Leonid I. Chernyshev N.V. Mikhaylovskaya 《Powder Metallurgy and Metal Ceramics》2005,44(1-2):97-103
The state of the production of metallic and ceramic powders (including nano-dimensional powders) and of articles fabricated from these powders in North America is discussed. New technologies that produce an increase in the density and improvement in the mechanical properties of powder-based articles are considered. Technological developments and articles for which prizes were awarded by the North American Metal Powders Industry Federation in 2003 are adduced.__________Translated from Poroshkaya Metallurgiya, Nos. 1–2(441), pp. 117–125, January–February, 2005. 相似文献
997.
Dasiel O. Borroto-Escuela Ismel Brito Wilber Romero-Fernandez Michael Di Palma Julia Oflijan Kamila Skieterska Jolien Duchou Kathleen Van Craenenbroeck Diana Suárez-Boomgaard Alicia Rivera Diego Guidolin Luigi F. Agnati Kjell Fuxe 《International journal of molecular sciences》2014,15(5):8570-8590
G protein-coupled receptors (GPCRs) oligomerization has emerged as a vital characteristic of receptor structure. Substantial experimental evidence supports the existence of GPCR-GPCR interactions in a coordinated and cooperative manner. However, despite the current development of experimental techniques for large-scale detection of GPCR heteromers, in order to understand their connectivity it is necessary to develop novel tools to study the global heteroreceptor networks. To provide insight into the overall topology of the GPCR heteromers and identify key players, a collective interaction network was constructed. Experimental interaction data for each of the individual human GPCR protomers was obtained manually from the STRING and SCOPUS databases. The interaction data were used to build and analyze the network using Cytoscape software. The network was treated as undirected throughout the study. It is comprised of 156 nodes, 260 edges and has a scale-free topology. Connectivity analysis reveals a significant dominance of intrafamily versus interfamily connections. Most of the receptors within the network are linked to each other by a small number of edges. DRD2, OPRM, ADRB2, AA2AR, AA1R, OPRK, OPRD and GHSR are identified as hubs. In a network representation 10 modules/clusters also appear as a highly interconnected group of nodes. Information on this GPCR network can improve our understanding of molecular integration. GPCR-HetNet has been implemented in Java and is freely available at http://www.iiia.csic.es/~ismel/GPCR-Nets/index.html. 相似文献
998.
999.
This paper analyses the influence of agglomeration and spatial sorting on wages in Brazilian cities. The empirical strategy is based on a two-step estimation. The first step estimates a wage equation with the observed characteristics of workers and firms and location effects. The second step decomposes the location effects into employment density and fixed effects of firm and worker. We estimate an urban wage premium for a developing country with the simultaneous inclusion of worker and firm fixed effects, instrumental variables, and nighttime lights. We find agglomeration effects of 4.3–5.7%, which are larger than those obtained for developed countries. 相似文献
1000.