Surgical treatment of degenerative mitral regurgitation

Karyotypes were prepared from peripheral blood leukocytes in 77 couples in whom there was no apparent cause for recurrent spontaneous abortion. In addition to conventional staining, chromosomes were stained by the new technics for Q-, G-, or C-banding. Translocations were found in 5 of 154 persons (3.25% or 1:31 individuals). The frequency of translocations in the general adult population is 0.4% (1:255). Two translocations were apparent only with the new technics for banding. The incidence of chromosomal microanomalies was 7.79% (2.6% in the general population). Karyotyping of couples with recurrent abortion is recommended, with use of the new staining technics.     

Extraction and properties of microcapsulated alpha-chymotrypsin

A method of microencapsulating of the proteolytic enzyme alpha-chymotrypsin into semi-permeable nylon membranes is worked out. The membrane is a polimer of 1,6-hexamethylenediamine and sebacoyl chloride. alpha-Chymotrypsin is enclosed into the capsule together with polyethyleneimine, capable of joining the walls of microcapsules and making the membrane more stable. The optimal concentrations of polyenthyleneimine and alpha-chymotrypsin are 5% and 1% correspondingly. The highest yield of microencapsulated enzyme was obtained for completely acetylated delta-chymotrypsin. The kinetic properties of microencapsulated alpha-chymotrypsin change very slightly as compared to those of the native one.     

男装高级成衣

正顺势随心正如James Brown的名曲I Feel Good所唱的那样,本季的男装再创造正以一股随心之势铺展开来:以层出不穷的新品和繁多的华丽秀场打头,随之发展成为无法抗拒的流行大潮。令人折服的设计、人性化的考量、与商业的完美融合外加保守内敛的气质共同打造出尖端的个性表达。高超的缝纫技艺凸显风格却不激进,运动和街头风共同打造出舒适的穿着感受。这一切都使得2015年春夏的男装充满了新鲜感和趣味性——对服装构造的全新解码以及蜕变中的年轻品牌和成熟品牌一起共同打造出简约却不平凡的夏日装束。     

A novel method to study fluorescein staining of the ocular surface using the fluorescein angiogram setting of the fundus camera.

We present a case of a failed penetrating keratoplasty (PKP), comparing the fluorescein staining of the cornea with the conventional technique, and the new technique using the fluorescein filters of a standard fundus camera.     

Performance characterization of nanofiltration membranes based on rigid star amphiphiles

The objective of this study was to develop new nanofiltration (NF) membranes capable of providing significantly greater water permeability and higher rejection of water contaminants compared to state-of-the-art NF membranes. The active layer of the new NF membranes is prepared with rigid star amphiphiles (RSAs) synthesized as part of this study. Performance characterization for a first generation of RSA membranes in a bench-scale apparatus reveals that most of the new membranes provide water permeability of 1.3-3.1 times that of two commercial NF membranes with polyamide active layers while providing comparable rejection of the organic contaminant surrogate Rhodamine WT. However, the rejection of arsenious acid (H3AsO3) by most new NF membranes was found to be lower than that by the two commercial NF membranes tested. Future research efforts of this study will focus on exploring if H3AsO3 rejection could be significantly increased, without negatively affecting water permeability and organic contaminant rejection, by addition of various chemical groups to RSA hydrophobic cores and hydrophilic branches, and by RSA cross-linking.     

Conjugated linoleic acid content of beef differs by feeding regime and muscle

The project objective was to determine the CLA content of three muscles (Longissimus lumborum, LD; Semimembranosus, SM; Triceps brachii, TB), in both raw and cooked states, in cattle finished on pasture or with grain supplements. Cattle were randomly assigned to one of four finishing regimens; pasture (n=11), pasture with grain supplement (n=11), pasture with grain supplement containing soyoil (n=12), and feedlot (n=12). In the raw state, TB had higher (P<0.05) CLA than LD or SM on a mg/g sample basis. Total CLA was higher (P<0.05) in the soyoil diet when compared to the other three feeding regimes on a mg/g sample basis and when expressed as mg/g fat in both raw and cooked analyses. Pasture inclusion produced higher levels (P<0.05) of total CLA than the feedlot diet on a mg/g fat basis for cooked samples while maintaining acceptable eating quality.     

Inhibitory effect of Chardonnay and black raspberry seed extracts on lipid oxidation in fish oil and their radical scavenging and antimicrobial properties

Ethanol extracts of Chardonnay grape and black raspberry seed flours were evaluated for their capacity to suppress lipid oxidation, preserve important fatty acids, and inhibit microbial growth. They were also tested for radical scavenging activity against DPPH and peroxyl radicals as reflected in oxygen radical absorbance capacity (ORAC), and total phenolic content (TPC). Both tested seed flour extracts suppressed lipid oxidation and rancidity development in fish oil. Black raspberry seed flour extract significantly reduced the degradation of biologically important n − 3 PUFA under accelerated oxidative conditions. Black raspberry and Chardonnay seed flour extracts at 165 and 160 μg seed flour equivalents/mL, respectively exhibited bacteriocidal activity against Escherichia coli and growth inhibition of Listeria monocytogenes under experimental conditions. Both seed flour extracts exhibited DPPH radical quenching activity and Chardonnay had the stronger ORAC of 663 μmol Trolox equivalents per gram seed flour and the higher TPC of 99 mg gallic acid equivalents/g flour. The data from this study suggest the potential for developing natural food preservatives from these seed flours for improving food stability, quality, safety, and consumer acceptance.