Results 281 to 290 of about 727,358 (304)
Some of the next articles are maybe not open access.
Polymorphism in Myristoylpalmitoylphosphatidylcholine
Chemistry and Physics of Lipids, 1999This study focuses on the mixed-chain lipid myristoylpalmitoylphosphatidylcholine (MPPC) near full hydration. The lipid, synthesized according to the procedure of (Mason et al., 1981a, has a low degree of acyl chain migration. When MPPC is temperature-jumped (T-jumped) from the L alpha phase (T = 38 degrees C) to T = 20 degrees C or below, a subgel ...
Yulia Lyatskaya +6 more
openaire +3 more sources
Journal of Pharmaceutical Sciences, 1989
The polymorphism of sulfathiazole has been reexamined. The issue of the separate existence of two of the forms, forms III and IV, has now been definitively resolved: both forms exist. Single crystals were used to generate X-ray diffraction patterns, equivalent to those normally obtained from polycrystalline samples, using the ingenious Gandolfi camera.
Anwar, Jamshed +2 more
openaire +4 more sources
The polymorphism of sulfathiazole has been reexamined. The issue of the separate existence of two of the forms, forms III and IV, has now been definitively resolved: both forms exist. Single crystals were used to generate X-ray diffraction patterns, equivalent to those normally obtained from polycrystalline samples, using the ingenious Gandolfi camera.
Anwar, Jamshed +2 more
openaire +4 more sources
Journal of Pharmaceutical Sciences, 2002
Roxifiban was found to exist in two polymorphic forms. The polymorphs were detected by X-ray powder diffraction and solid-state carbon nuclear magnetic resonance. A slight difference between the two polymorphs was also detected by isothermal microcalorimetry. However, no differences were observed by differential scanning calorimetry, infrared, or Raman
Gregory A. Nemeth +11 more
openaire +3 more sources
Roxifiban was found to exist in two polymorphic forms. The polymorphs were detected by X-ray powder diffraction and solid-state carbon nuclear magnetic resonance. A slight difference between the two polymorphs was also detected by isothermal microcalorimetry. However, no differences were observed by differential scanning calorimetry, infrared, or Raman
Gregory A. Nemeth +11 more
openaire +3 more sources
Polymorphism of clarithromycin
Archives of Pharmacal Research, 2000It is well recognized that physicochemical properties of drugs are affected by the type of polymorphic crystalline form of drugs. Clarithromycin is known to exist in at least three polymorphic crystalline forms. Since conventional means to obtain the most thermodynamically stable form (Form II) for the antibiotics is known to be associated with a low ...
Weon-Bin Im +2 more
openaire +3 more sources
Acta Crystallographica Section C Crystal Structure Communications, 1996
The title compound, 7,8-didehydro-4,5-epoxy-17-methylmorphinan-3,6-diyl diacetate, C21H23NO5, was crystallized from a solution of its hydrochloride and sodium acetate. Unlike prior reports in which crystals were hexagonal shaped (orthorhombic) and in space group P2(1)2(1)2(1), the crystals in the present determination grew as large prisms (monoclinic ...
J. L. Flippen-Anderson +2 more
openaire +3 more sources
The title compound, 7,8-didehydro-4,5-epoxy-17-methylmorphinan-3,6-diyl diacetate, C21H23NO5, was crystallized from a solution of its hydrochloride and sodium acetate. Unlike prior reports in which crystals were hexagonal shaped (orthorhombic) and in space group P2(1)2(1)2(1), the crystals in the present determination grew as large prisms (monoclinic ...
J. L. Flippen-Anderson +2 more
openaire +3 more sources
2021
Molecular substances, as a rule, manifest themselves in more than one crystalline form. And it may happen that two members of a given family, under given conditions of temperature and pressure, do not adopt the same form. Polymorphism, for that matter, is a fascinating and at the same time complicated phenomenon.
Rietveld, Ivo B. +2 more
openaire +3 more sources
Molecular substances, as a rule, manifest themselves in more than one crystalline form. And it may happen that two members of a given family, under given conditions of temperature and pressure, do not adopt the same form. Polymorphism, for that matter, is a fascinating and at the same time complicated phenomenon.
Rietveld, Ivo B. +2 more
openaire +3 more sources
ACM SIGCSE Bulletin, 2001
Polymorphism is an important object-oriented programming concept in which objects from two or more different classes respond to the same set of messages. For instance, HourlyEmployee, SalariedEmployee, and ContractEmployee all respond to the message calculatePay().
Eugene Wallingford +4 more
openaire +2 more sources
Polymorphism is an important object-oriented programming concept in which objects from two or more different classes respond to the same set of messages. For instance, HourlyEmployee, SalariedEmployee, and ContractEmployee all respond to the message calculatePay().
Eugene Wallingford +4 more
openaire +2 more sources
2013
Over the last decade, the explosive advances in sequencing and genotyping technologies fueled by major financial investments in basic science, have evidenced that hundreds of genes harboring variations contribute to human cancers and that genetic variability may influence patients' responses to post-surgical treatments (Hamburg and Collins, N Engl J ...
Siano, M, Vecchione, M, ILARDI, GENNARO
openaire +2 more sources
Over the last decade, the explosive advances in sequencing and genotyping technologies fueled by major financial investments in basic science, have evidenced that hundreds of genes harboring variations contribute to human cancers and that genetic variability may influence patients' responses to post-surgical treatments (Hamburg and Collins, N Engl J ...
Siano, M, Vecchione, M, ILARDI, GENNARO
openaire +2 more sources
Journal of Theoretical Biology, 1993
It is well known that for a single, autosomal locus with differential viabilities convergence to a stable equilibrium is assured. However if new alleles are introduced sequentially by mutation the final equilibrium may depend on the particular sequence. Thus the equilibrium to which the population moves will be randomly determined.
Chris Cannings, J.P. Tyrer, G.T. Vickers
openaire +3 more sources
It is well known that for a single, autosomal locus with differential viabilities convergence to a stable equilibrium is assured. However if new alleles are introduced sequentially by mutation the final equilibrium may depend on the particular sequence. Thus the equilibrium to which the population moves will be randomly determined.
Chris Cannings, J.P. Tyrer, G.T. Vickers
openaire +3 more sources
Nature, 1968
Lecithin–water systems display a variety of phases. Several of these phases, observed at a high temperature in the presence of small amounts of water, belong to a class of structures recently discovered in the anhydrous divalent cation-soaps. In these structures the polar groups are clustered in rod-shaped regions, embedded in a disordered paraffin ...
Vittorio Luzzati +2 more
openaire +3 more sources
Lecithin–water systems display a variety of phases. Several of these phases, observed at a high temperature in the presence of small amounts of water, belong to a class of structures recently discovered in the anhydrous divalent cation-soaps. In these structures the polar groups are clustered in rod-shaped regions, embedded in a disordered paraffin ...
Vittorio Luzzati +2 more
openaire +3 more sources