Computer-aided photo-identification of a rare stingray, Megatrygon microps.

A protocol for photo-identification of individual Megatrygon microps has been defined. One hundred and four identification photographs were taken between 2005 and 2019. Spot patterns on the dorsal surface were used to identify individuals.

Birthweight below the tenth percentile: the relative and attributable risks of maternal tobacco consumption and other factors.

Analysis of 7776 singleton births defined a cohort of babies with birthweight below the 10th percentile after adjusting for gestational age and sex. The relative risk of a baby being small for gestational age in respect to a number of factors, such as parental anthropometry, demographic factors, behavior patterns (tobacco, cannabis, alcohol, and caffeine consumption), maternal pathology, and fetal abnormality, was calculated. The highest relative risks are associated with severe antepartum hemorrhage, severe pre-eclampsia, and severe fetal abnormality.

The mental health of women 6 months after they give birth to an unwanted baby: a longitudinal study.

This study reports a longitudinal prospective study of the impact of an unwanted pregnancy on the mental health of the mother. Data are derived from a Brisbane, Australian sample of 8556 mothers who were enrolled at their first clinic visit (mean gestation 18 weeks) and then interviewed again some 3-5 days after the birth and when the baby was 6 months of age. Standard scales of mental health were administered on each of these occasions and mothers whose babies were unwanted were compared with the rest of the sample.

Treatment of malignant ascites due to recurrent/refractory ovarian cancer: the use of interferon-alpha or interferon-alpha plus chemotherapy in vivo and in vitro.

Intraperitoneal treatment with interferon (IFN) for malignant ascites due to advanced ovarian carcinoma refractory to chemotherapy gave an objective response rate of 36% (7/19 patients treated). In vitro studies demonstrated that cytotoxicity of peripheral blood monocytes/macrophages was stimulated by IFN. However, peritoneal exudate cells obtained after intraperitoneal treatment with interferon were not stimulated to kill autologous tumour cells.

Adriamycin cellular transport: methodological aspects.

A rapid and simple method for determination of cellular uptake of adriamycin is described. The method is based on the principle that active uptake is proportional to alterations of drug distribution, measured as a fraction of time, between suspending medium and cells, the volume of each having been accurately determined. Cellular drug uptake can be calculated by the use of a simple distribution formula.

Social factors associated with the decision to relinquish a baby for adoption.

Little is known about the characteristics, social circumstances and mental health of women who give a child up for adoption. This paper reports data from a longitudinal study of 8556 women interviewed initially at their first obstetrical visit. In total, 7668 proceeded to give birth to a live singleton baby, of which 64 then relinquished the baby for adoption.

Patient age and success in a human IVF programme.

Previous studies suggest that at around 40 years of age, pregnancy rates achieved by IVF programmes fall and pregnancy loss rates increase. The actual age at which this occurs has not been clearly delineated. This study of 2,692 patients including 94 aged 41 or over shows that satisfactory pregnancy rates can be achieved up to and including age 40.

The employment of mothers and the outcomes of their pregnancies: an Australian study.

One of the more dramatic structural changes in a number of western industrial societies has involved the increased participation of women in the paid labour force. Little is known about the health consequences of this change. This paper reports the findings of a prospective longitudinal study of 8,556 pregnant women who were interviewed on three occasions; early in their pregnancy, shortly after the birth of the baby and some six months later.

Unemployment and reproductive outcome. An Australian study.

The Mater-University of Queensland Study involves the follow-up of 8556 pregnant women who were enrolled at their first clinic visit. This analysis compares four groups of women categorized according to their own and their partners' employment status. Group 1 comprised women unemployed, partners not unemployed.

Socio-economic status and pregnancy outcome. An Australian study.

A prospective cohort of 8556 pregnant women attending the Mater Misericordiae Mothers' Hospital in Brisbane was examined to consider the impact of socio-economic status on pregnancy outcome. The indicators of socio-economic status selected were family income, maternal education and paternal occupational status. Pregnancy outcomes considered were preterm delivery, low birthweight, low birthweight for gestational age, and perinatal death.

A prospective longitudinal study of social, psychological and obstetric factors in pregnancy: response rates and demographic characteristics of the 8556 respondents.

This paper introduces the Mater Misericordiae Mothers' Hospital-University of Queensland Study of Pregnancy, a prospective study of 8556 pregnant women interviewed at their first clinic visit, and subsequently interviewed some days after the birth of the baby and again 6 months later. Additional data were derived from the medical record of the pregnancy and delivery. The study was designed to assess the impact of social, psychological and obstetric factors on pregnancy outcome.

Religious values, practices and pregnancy outcomes: a comparison of the impact of sect and mainstream Christian affiliation.

In this report 6566 women enrolled in the Mater-University of Queensland Study of Pregnancy (MUSP) were separated into three groups; members of religious sects, Christians who attend church frequently and Christians who are infrequent attenders. These three groups, respectively labelled Christian sects, Christian attenders and lukewarm Christians were compared on a number of social background, lifestyle and pregnancy outcome variables. The sect members appeared to have the most favourable health, lifestyles and healthy babies at delivery, though this latter finding appears attributable to specific characteristics of the mother and her lifestyle.

Purification and initial characterization of an enzyme with deacetoxycephalosporin C synthetase and hydroxylase activities.

Deacetoxycephalosporin C synthetase (expandase) from Cephalosporium acremonium (Acremonium chrysogenum) was purified to near homogeneity as judged by SDS/polyacrylamide-gel electrophoresis. The enzyme (Mr about 40,000) exhibited a pH optimum around 7.5.

Understanding preterm labour: the use of Path Analysis.

A retrospective study was performed on 465 spontaneous preterm and 13,949 term births, in order to analyze the sequence of events that culminate in preterm labour. Twenty-one variables were investigated by the mathematical technique of Path Analysis. Nine direct and independent precursors of preterm labour were identified.

Pregnancy after renal transplantation.

The results of a series of 6 pregnancies (including 1 set of twins) in renal transplant patients are presented with a review of the relevant literature. There were no fetal anomalies or deaths, or episodes of renal compromise or graft rejection. The important complications were hypertension (4), prematurity (4) and fetal growth retardation (2).

Information control and the exercise of power in the obstetrical encounter.

Interactions between doctor and patient involve participants with unequal power and possibly different interests. While a number of studies have focused upon the doctor/patient relationship, few have examined the utility of the concept of power and its capacity to help us understand the outcome of these interactions. The information sought by pregnant women from their obstetricians is used to provide a case study of one conceptualization and test of the utility of the concept of power.

Ovine ill-thrift in Nova Scotia. 9. Production of experimental quantities of isocyanide metabolites of Trichoderma hamatum.

Laboratory cultures of Trichoderma hamatum produce metabolites that are characterized by an isocyanide functionality. Three such metabolites predominate. One is the known compound trichoviridin (I).

The use of antenatal tests of fetal welfare.

The value of antenatal tests of fetal welfare is a constant source of controversy and confusion to obstetricians and general practitioners. The proliferation of such tests indicates that none is ideal and all are relatively imprecise.

Cell-free conversion of isopenicillin N into deacetoxycephalosporin C by Cephalosporium acremonium mutant M-0198.

In a cell-free system prepared by lysis of protoplasts of Cephalosporium acremonium mutant M-0198, isopenicillin N was converted into a penicillinase-resistant material that behaved like deacetoxycephalosporin C on high-pressure liquid chromatography analysis. This activity was found to be unstable to storage at -80 degrees C; 70-80% of the activity was lost after 1 day.