摘要:
Dye fade in photographic images prepared from a silver halide photographic element having a light sensitive silver halide emulsion layer and a pyrazoloazole dye forming coupler is reduced by using a combination of stabilizer compounds of formula S, formula I and optionally formula R. ##STR1##
摘要:
A photographic element having at least one photosensitive silver halide layer and associated therewith both a particular type of color coupler and a particular type of stabilizer. The color coupler is of the general formula (1) or (2): ##STR1## wherein A and B represent the same or different electron-withdrawing group,X is H or a group which splits off on coupling with oxidized color developer,R is an alkyl, cycloalkyl, aryl or heterocyclic which may be substituted, --COR.sup.1, --CSR.sup.1, SOR.sup.1, SO.sub.2 R.sup.1, --NHCOR.sup.1, --CONHR.sup.1, --COOR.sup.1, --COSR.sup.1, --NHSO.sub.2 R.sup.1 wherein R.sup.1 is an alkyl, cycloalkyl, or aryl group any of which are optionally substituted, and wherein two or more of A, B, R, and X optionally form part of a ring,Link is a linking group andn is 0, 1 or 2.The stabilizer is of the general formula: ##STR2## wherein: E.sup.1, E.sup.2, W.sup.2 and W.sup.3 may independently be a hydrogen atom, a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aromatic group, an acylamino group, a mono or dialkylamino group, an aliphatic or aromatic thio group, an aliphatic or aromatic oxycarbonyl group, or W.sup.2 and W.sup.3 in combination with the benzene ring may independently represent the atoms necessary to complete a fused ring system, or E.sup.1 and W.sup.3 together, and E.sup.2 and W.sup.2 together, may independently form a heterocyclic ring with an O.
摘要:
Soybean plants comprising event SYHT04R, methods of detecting and using the same, and soybean plants comprising a heterologous insert at the same site as SYHT04R.
摘要:
A parallel reactor system including a reactor and vessels in the reactor for holding reaction mixtures, and a cannula for introducing fluid reaction material into the vessels. A robot system is operable to insert the cannula into cannula passages in the reactor for delivery of reaction materials, including condensed gases, to respective vessels, and to withdraw the cannula from the cannula passages after delivery. Related methods are also disclosed.
摘要:
The invention provides methods for the treatment or prevention of obesity. The invention also provides screening methods for determining whether a compound is useful for the treatment or prevention of obesity.
摘要:
The invention provides improved compositions (e.g., combinations of signal transduction inhibitors) and methods for the prevention, stabilization, or treatment of cancer or other angiogenesis related diseases. In particular, the present methods use combination therapies to modulate the expression or activity of multiple mRNA molecules or proteins associated with angiogenesis or cancer in a mammal (e.g., a human)
摘要:
Novel hydroxamic acid compounds are disclosed. These hydroxamates inhibit peptidyl deformylase (PDF), an enzyme present in prokaryotes. The hydroxymates are useful as antimicrobials and antibiotics. The compounds of the invention display selective inhibition of peptidyl deformylase versus other metalloproteinases such as matrix metalloproteinases (MMPs). Methods of synthesis and of use of the compounds are also disclosed.
摘要:
Disclosed is a photographic element comprising a support on which is coated at least one layer containing a light sensitive silver halide emulsion having associated therewith a dye-forming coupler of Formula (1a). wherein R.sub.1 is an alkyl group of not more than 8 carbon atoms; R.sub.5, R.sub.6, R.sub.7, and R.sub.8 each independently represent a hydrogen atom or a substituent; and A is an alkylene group. The element has improved post-process keeping.
摘要:
A silver halide photographic element having a light sensitive silver halide which layer also contains a 2-equivalent pyrazolone magenta coupler, a compound of formula (S) below, and a hydroquinone compound of formula (R) below: ##STR1## wherein: R.sub.1 is an alkyl group; and R.sub.2, R.sub.3 and R.sub.4 are independently an alkyl group or H.The presence of the compound (S) when used with the two-equivalent pyrazolone magenta coupler and compound (R), can result in low magenta dye fade, increased wavelength of maximum absorption of the magenta dye and increased magenta dye bandwidth.