Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 10 de 10
Filter
Add more filters










Publication year range
1.
Poult Sci ; 88(6): 1257-65, 2009 Jun.
Article in English | MEDLINE | ID: mdl-19439638

ABSTRACT

Microwaves have been shown to cause thermal as well as nonthermal destruction of pathogens such as Salmonella, which can be found in shell eggs. The objective of this study was to determine if using microwave technology would cause detrimental quality effects in shell eggs. Treatments included control (no treatment) and microwave-treated (20 s) shell eggs. There were no differences in mineral content, fatty acid profile, Haugh units, broken-out score, yolk index, emulsion stability, pH of whole egg, and foaming capacity between 2 treatments (P >or= 0.05). At 0 and 30 d, there were no noticeable differences in H(2)O activity between 2 treatments. The foaming stability and albumen thermocoagulation of microwave-treated eggs were significantly higher than control eggs (P or= 0.05). Therefore, microwave technology can be applied to shell eggs without causing detrimental effects to quality.


Subject(s)
Eggs/standards , Food Handling/methods , Microwaves , Color , Consumer Behavior , Egg Proteins/chemistry , Egg Yolk/chemistry , Female , Food-Processing Industry/methods , Humans , Hydrogen-Ion Concentration , Male , Vitelline Membrane/physiology , Water/chemistry
2.
Am J Obstet Gynecol ; 160(4): 805-9; discussion 809-11, 1989 Apr.
Article in English | MEDLINE | ID: mdl-2540654

ABSTRACT

A prospective randomized study was undertaken to determine whether the administration of oral contraceptives after the evacuation of a hydatidiform mole affects the human chorionic gonadotropin serum level in a way that leads to an increased frequency in the diagnosis of postmolar trophoblastic disease. Between 1981 and 1988, 266 patients were randomly assigned to either oral contraceptives or barrier contraception after evacuation of a hydatidiform mole. Patients were followed up until serum levels of human chorionic gonadotropin were normal or until specific criteria for the diagnosis of postmolar trophoblastic disease were met. Twenty-three percent of patients receiving oral contraceptives had postmolar trophoblastic disease, whereas those using a barrier method had a rate of 33%. The median time to spontaneous regression in the oral contraceptives group was 9 weeks, whereas the median time to regression in the barrier group was 10 weeks. Twice as many patients in the barrier group became pregnant in the immediate follow-up period. We conclude that oral contraceptives are the preferred method of contraception after evacuation of a hydatidiform mole.


Subject(s)
Contraceptives, Oral, Hormonal/adverse effects , Hydatidiform Mole/complications , Trophoblastic Neoplasms/etiology , Uterine Neoplasms/complications , Chorionic Gonadotropin/blood , Contraceptive Agents, Female/pharmacology , Female , Humans , Pregnancy , Prospective Studies , Random Allocation , Retrospective Studies , Trophoblastic Neoplasms/blood , Trophoblastic Neoplasms/diagnosis
4.
Rev Sci Instrum ; 51(3): 388, 1980 Mar.
Article in English | MEDLINE | ID: mdl-18647079

ABSTRACT

We describe the design, fabrication, and utilization of a simple sample cell for extended x-ray absorption fine structure (EXAFS) measurements at elevated temperature. The cell is rigid, inert, easy to fabricate, cheap and effective in maintaining the critical specimen dimensions of both solid and liquid samples up to 1000 degrees C.


Subject(s)
Spectrometry, X-Ray Emission/instrumentation , X-Rays , Copper/chemistry , Equipment Design , Helium/chemistry , Phase Transition , Research Design , Silver/chemistry , Spectrometry, X-Ray Emission/methods , Temperature
5.
J Hyg (Lond) ; 77(3): 349-54, 1976 Dec.
Article in English | MEDLINE | ID: mdl-187692

ABSTRACT

The influence of colostrum-derived antibody to louping-ill virus on the course of experimental infection was investigated in lambs. Lambs that had high titres of antibody were refractory to infection. Lambs that had low titres of antibody did not develop a viraemia but either showed an antibody reaction or were sensitized as judged by the immune response, which was typical of an anamnestic response, after rechallenge. Animals that had no antibody 34-20 days before challenge had either no or very slight viraemia, but did develop an antibody response with titres as high as those of control lambs by day 21. Lambs that had been negative for longer periods responded in a similar fashion to controls. These findings are discussed in relation to the occurrence of disease in lambs kept in louping-ill endemic areas. It is concluded that in such areas infections of lambs are likely to be of minor importance as a cause of mortality and of little epidemiological significance.


Subject(s)
Antibodies, Viral/analysis , Colostrum/immunology , Encephalitis Viruses, Tick-Borne/immunology , Louping Ill/immunology , Animals , Immunity , Sheep
SELECTION OF CITATIONS
SEARCH DETAIL
...