摘要:
New compounds and methods for the preparation of combinatorial libraries of potentially biologically active compounds are based on monosaccharides of formula I being a derivative of a furanose or pyranose form of a monosaccharide, .
摘要:
This invention includes methods for producing non-human mammals expressing monoclonal or oligoclonal B or T lymphocytes, as well as embryonic and hematopoietic stem cells that differentiate into monoclonal or oligoclonal B or T cells, using cloning by nuclear transfer with a B or T cell of interest as the nuclear donor cell.
摘要:
New compounds and methods for the preparation of combinatorial libraries of potentially biologically active compounds are based on monosaccharides of formula I being a derivative of a furanose or pyranose form of a monosaccharide,
摘要:
The present invention provides methods for the culture of animal pluripotent stem cells and their differentiated progeny cells, tissues, and organs, and nonhuman animal embryos and fetuses.
摘要:
A method of inhibiting or effecting the activity of protein kinase activity which comprises contacting a protein kinase with a compound of formula (I) being a derivative of a furanose or pyranose form of a monosaccharide, or a pharmaceutically acceptable salt thereof.
摘要:
The low modulus polyimide adhesive compositions of the present invention contain a low modulus polyimidosiloxane polymer, a thermosetting substantially-non-halogenated epoxy (optionally including an epoxy catalyst), a plasticizer, an insoluble halogen-free flame-retardant filler, and optionally an adhesion promoter. The adhesive can be applied upon (or incorporated into) flexible circuits using a relatively low lamination temperature, generally no higher than 200, 190, 180, 175, 170, 165, 160, 155, or 150° C. The adhesive is generally resistant to unwanted curl even in cases where the adhesive polyimide and the base film polyimide have a coefficient of linear thermal expansions (measured between 50° C. and 250° C.) that differ by more than 10, 15, 20 25, or 30 ppm/° C.
摘要:
A loop dilution system includes a dual-loop multi-way valve. In a first configuration of the multi-way valve, a first loop may be filled with a first solution and a second loop may be filled with a second solution. In a second configuration of the multi-way valve, the first and second loops are serially connected with a pump so that their contents may be mixed with a diluent. In another aspect of the invention, an in-process mass spectrometry (IPMS) system is disclosed that uses an internal standard to determine the concentration of an analyte in a sample. The internal standard has a different molecular composition than the analyte but is sufficiently similar chemically and physically to the analyte such that it behaves substantially the same as the analyte during an ionization process in the mass spectrometer.
摘要:
A process for the production of N-acylimidazoles by the reaction of a carboxylic anhydride with carbonyl-diimidazole is disclosed. The products are useful as chemical intermediates.
摘要:
A system (50) includes a labeling machine (52) and a digital data processing system (54) connected to the labeling machine (52). A cutter (56) of the labeling machine (52) has a shaft (58) with a mark (60), which is sensed by a sensor (62). The sensor (62) supplies shaft (58) information on line (64) to digital data processing system (54). The digital data processing system (54) supplies control signals on line (64) to feed roll (66) stepper motor (67). The digital data processing means (54) is also connected to an optical sensor (76) by line (78). The optical sensor (76) senses the position of position mark (74) on the labels (70), which is correlated with the position of shaft (58) in order to feed the labels (70) to the cutter (56) at the proper rate so that the labels (70) are always cut at the kerf (72) between each label (70).