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Mortimer D - - 1982
A survey of available data has shown that the sex ratio of births is significantly affected both by the practice of artificial insemination (AI) and by the cryostorage of semen. Comparison of the sex ratio of all infants born in England, Scotland and Wales between 1969 and 1978 (51.5% males) ...
Furuichi T - - 1982
The winter range utilization pattern of a Japanese macaque troop in a snowy habitat was studied. The vegetation areas essential for subsistence were found to be relatively undisturbed mixed and deciduous forests. The concept of essential resource area (ERA) is defined. Our comparison among three troops in the same habitat ...
Jongbloet P H - - 1982
Six series of patients with Down syndrome (DS) from different European countries, altogether 287 cases, were divided into four categories according to parental origin of the additional chromosome 21 and meiotic division in which the nondisjunction had occurred. The monthly birth or conception frequencies per category were analysed by graph ...
Lange V - - 1982
By the study of hereditary serum protein markers in psychotic patients and normal controls, a surplus of Gc 1-1 (p less than 0.01) and transferrin B variants (p less than 0.0027) has been established in schizophrenias. Affective psychoses are characterized by an excess of the haptoglobin (Hp) serum type 2-2 ...
Brodsky P - - 1981
A theoretical model of the etiology of schizophrenia, the schizophrenia spectrum, and normal development is proposed. This model is based upon replicated research. A selected review of the literature on the etiology of schizophrenia indicated that schizophrenia may be a developmental disorder of the quality of attachment interacting with the ...
Adams M M - - 1981
During the 1970s, the crude incidence of Rh hemolytic disease of the newborn (RhHDN) in the United States dropped 65 per cent---from 40.5/10,000 total births in 1970 to 14.3/10,000 total births in 1979. Since the risk of RhHDN is directly associated with birth order, changes both in birth order-specific RhHDN ...
Yarden P E - - 1981
Delusions of altered personal identity were studied over a four-year period in 53 young schizophrenic in-patients divided into 13 with persistent delusions, 16 with fleeting delusions and 24 with no delusions of identity alteration at first examination. The three groups were clinically otherwise comparable. Follow-up showed that those with persistent ...
Hare E H - - 1981
Seasonal variation in the rates of stillbirth, and of deaths under the age of one year, were studied for England and Wales in order to examine (a) changes in the seasonal variation over the years and (b) the correlation between seasonal rates and seasonal temperatures. The quarterly rates of stillbirths ...
Fribourg A - - 1981
The purpose of this study was to investigate the effect of subliminal symbiotic stimulation alone and in conjunction with an enhancement procedure on the pathology of relatively differentiated and relatively undifferentiated schizophrenics. It was hypothesized that enhancing the positive attributes of the schizophrenic's image of his mother prior to stimulating ...
Hare E - - 1981
The relation between schizophrenia birth rates and environmental temperature was studied in patients born in England and Wales during 1921-1955 and first admitted there in 1970-1977. A methodological difficulty due to varying age-incidence was avoided by the use of indices independent of yearly changes in rates. Birth rates in the ...
Cahill L P - - 1981
In the sheep the total duration of folliculogenesis, i.e. from the start of development of a primordial follicle to ovulation, is thought to be about 6 months. The initiation of follicular growth as follicles enter the growth phase is influenced by gonadotrophins and, in the sheep, by factors such as ...
Khan A R - - 1980
An one-year study was conducted on the outdoor breeding habitats and seasonal prevalence of larval populations of Aedes aegypti and Aedes albopictus in ten different locations of Dacca city. Nine locations were found infested with larvae of either one or both species during the rainy season (May to October) of ...
James W H - - 1980
Anencephalic infants born to women who are very prone to bear them do not have a sex ratio appreciably different from that of other anencephalic births. Moreover, the sexes of affected cases in sibships containing exactly two anencephalic births seem to be distributed approximately binomially. Bearing in mind the correlation ...
Wrede G - - 1980
Pregnancy, delivery and post partum conditions were coded from Helsinki Well Mother-Baby Clinics and Lying in hospitals for all deliveries to a birth cohort of Helsinki schizophrenic women. Greater difficulty was observed at all perinatal stages for the chronic and mild schizophrenic groups than for controls. These differences were heightened ...
James W H - - 1980
A review of published reports showed that the sex ratio (proportion of boys) was low among infants conceived after ovulation had been induced. The difference between the observed sex ratio and an expected one of 0 . 514 was highly significant. These findings suggest that maternal gonadotrophin concentrations at the ...
Cheke R A - - 1980
The thorax lengths of monthly samples of female S. damnosum s.l. caught between August 1975 and February 1977 at Danagoro in the Ivory Coast were measured. The blackflies could be separated into three species groups according to their external characters. Flies attributable to S. damnosum/S. sirbanum and S. soubrense/S. sanctipauli ...
O'Hare A - - 1980
The seasonality of births was examined for 4,855 schizophrenic patients born in Ireland between 1921 and 1955. All general births for the same years were used as controls. Schizophrenic births were found to be significantly elevated in the second quarter of the year (P less than .001). The excess was ...
Cheng M F - - 1980
Changes in follicular size (in diameter) were studied by laparotomy under various photoperiodic regimes in the domesticated ring doves that have been kept under standard laboratory conditions for generations. Follicular response shows two distinct patterns: 1. a shift from standard laboratory photoperiodic regime (LD 14:10) to extra long day (LD ...
Peppler R D - - 1980
Mature, non-pregnant, female armadillos (Dasypus novemcinctus) were killed throughout the year (3-6/month, N = 54) and both ovaries were examined for follicular development. All normal and atretic follicles > 358 micrometers were counte. Total number of normal follicles remained constant from January to June but decreased by 50% in the ...
Coren S - - 1980
As an alternative to genetic theories of handedness, some theorists have offered an environmental mechanism, associated with birth stress, for the appearance of left-handedness. They suggest that brain damage as a result of birth difficulties can lead to a switch in hand preference from the right side to the left ...
Hicks R A - - 1980
Recently Leviton and Kilty reported that the birth dates of left-handed girls in elementary school display a seasonal trend which peaks in November. We report here a failure to replicate this finding for 257 male and 323 female college students. Further, we have considered the likelihood that the original finding ...
Shimura M - - 1980
Seasonal distribution of births of schizophrenics and manic-depressives born in Tokyo between the years of 1841 and 1940 and first admitted between 1879 and 1973 was examined by year of birth, year of first admission and age at first admission. In both mental disorders, a fall-excess of births could be ...
Miura T - - 1980
Seasonal birth variation was investigated in relation to the season of the mother's birth by examining: (1) 21,517 case records of a maternity hospital in Tokyo, Japan, for the period between 1925 and 1960 and (2) 2,348 questionnaires on mothers and their offsprings. In general, the birth rate was the ...
Brackenridge C J - - 1980
The month of birth of 923 patients in England and Wales dying with cystic fibrosis as an underlying cause was found to be distributed independently of sex and year of birth during 1954-1976. When adjusted for the monthly variations in births in the national population, birth frequencies were bimodally distributed. ...
Goss R J - - 1980
Newborn and weanling fawns were held under reversed annual light cycles to learn if the subsequent replacement of their antlers would coincide with the anniversary of their births, as occurs in nature, or adapt to the artificial seasons of increasing day lengths even when these fall at the "wrong" time ...
Zajonc R B - - 1979
Studies relating intellectual performance to birth order report conflicting results, some finding intellectual scores to increase, others to decrease with birth order. In contrast, the relationship between intellectual performance and family size is stable and consistently replicable. Why do these two highly related variables generate such divergent results? This birth ...
Jackson M P - - 1979
The aim of this study was to determine whether variations in Eysenck Personality Inventory (EPI) scoring among zodiacal birth groups follow a similar pattern for Ss born in the Southern hemisphere to that which has been reported for Northern hemisphere Ss. EPI and birth data were obtained from 450 adult ...
Torrey E F - - 1979
In view of recent findings in Japan, and in England and Wales, data on schizophrenic births in the United States were reexamined to see if seasonal shifts had occurred. In Missouri a progressive shift from February to April and May was noted between 1921 and 1930 and between 1941 and ...
Jones I H - - 1979
Season of birth of schizophrenics was investigated by comparing 915 carefully selected schizophrenic patients with controls matched for age and sex. While the winter-spring excess of schizophrenic births was similar to Northern Hemisphere findings, further examination of data revealed a new feature: a striking excess of male schizophrenic births for ...
Menken J - - 1979
Seasonal patterns in conception rates have been documented in several recent studies. In this paper, a mathematical model of the reproductive process is developed through which the impact of such variation in conception rates is assessed. It is found that the effect on fertility can be quite substantial, but that ...
Leviton A - - 1979
The birth of left-handed girls in a school population displayed a seasonal trend, with a peak in November. No seasonal trend was seen in the birth of left-handed boys. The seasonal pattern of birth of left-handed girls is compatible with the hypothesis that nongenetic factors contribute to the occurrence of ...
Syme G J - - 1978
Birth patterns of non-aboriginal, first admission, Western Australian psychiatric patients born between 1920 and 1950 were compared statistically with those of the general population. Three I. C. D. categories were examined: schizophrenia, anxiety neurosis, and depressive neurosis. For both categories of neurosis no deviations from normal birth patterns were observed. ...
Wyndham C H - - 1978
A summary of the literature shows that there are well-marked seasonal variations in mortality for total deaths, for respiratory and cardiovascular diseases and for diabetes, the mortality rate being higher in winter than in summer. These seasonal variations in mortality are seen in infants under 1 year of age and ...
Parker G - - 1978
An association between spring birth and anxiety neurosis in New South Wales is confirmed. Two possible explanations, that the association might reflect a seasonal variation in conceiving or in giving birth among mothers of those with significant anxiety, or that spring birth selectively disposes to anxiety, were examined. Findings suggest ...
Hare E H - - 1978
Inpatient admissions to all psychiatric hospital beds in England and Wales in 1970-73 were studied by month of admission for eight diagnostic groups. The admission rates for schizophrenia showed a pronounced seasonal variation, with a maximum in summer. The seasonal pattern for schizophrenia was very similar to the one shown ...
Padhi S N - - 1978
Male garden lizards weighing between 2 to 17.5 g and having a snout to vent length range of 4.5 to 8.7 cm were collected from nature during the breeding season and reared in the laboratory at 28 +/- 2 degrees C for a period of 6 months. There was a ...
Hare E H - - 1978
The quarterly distribution of births of patients born in England and Wales 1921-60 and first admitted in 1970-75 was examined by decade of birth and by age at year of admission. For patients with schizophrenia and affective psychosis, the distribution varied: in the early decade (1921-30), and for older patients ...
Roberts M S - - 1978
The annual reproductive cycle of a captive colony of Barbary apes, Macaca sylvana, was examined for the 26-year period from 1950 to 1976 and then compared with the annual reproductive cycle of semifree ranging M.sylvania in Gibraltar. Mating and birthing seasons for the two populations were similar although birth synchrony ...
Kilbride H W - - 1977
Early home experiences of a group of 32 2-week old infants, equally divided according to social class, birth order, and sex, were studied. Naturalistic observations were taken on 2 consecutive days for a total of 6 hours. Compared with later-borns, firstborns received significantly more caretaker interaction on all variables studied. ...
Odegård O - - 1977
The monthly number of births in Norway fluctuates between a maximum in January-May and a minimum in October-December. This cyclic seasonality is assumed to be of biological origin, but indirectly it is influenced by social factors and consequently tends to vary a great deal. There is a secondary birth maximum ...
Torrey E F - - 1977
The birth months of persons later diagnosed as schizophrenic were studied. Data were collected from 19 states on 53,584 schizophrenics born between 1920 and 1955. The controls were the general births in the same states for the same years. A highly significant peak in schizophrenic births was found from December ...
Parker G - - 1977
Studies in the northern and southern hemispheres have generally demonstrated an association between shcizophrenia and winter birth. No previous study has been performed in an equatorial region. The present study investigated the distribution of births of 3,508 schizophrenic patients born in the Philippines. A 15% excess above expectation was found ...
Davis D J - - 1977
For Israeli eighth-grade students of Asian-African origin, achievement decreases as a function of birth order in small families and increases as a function of birth order in large families. This finding cannot be accounted for by differences in developmental rate or size of birth intervals. It can be accounted for ...
Buck C - - 1977
Evidence was found against the hypothesis that heterozygous carriers of a schizophrenic gene have a reproductive advantage through enhanced fertility. In consequence an investigation was made of the possibility that an advantage is gained through diminished early mortality among the off-spring of carriers. The results were equivocal. While an observed ...
Tkachyk S J - - 1977
An outdoor airborne mold survey was recently carried out in the Edmonton area revealing some previously unrecognized molds, especially Rhodotorula. Hormodendrum was by far the commonest mold identified and was present all year round. It was also revealing that outdoor molds were quite prevalent in the Edmonton area throughout all ...
Shimura M - - 1977
The monthly distribution of births of 7,960 schizophrenic patients in Tokyo born during the period of 1841-1950 was studied in comparison with that of a control population in Tokyo. A spring excess of schizophrenic births were found after 1901 as in previous studies in Western countries. Before 1900, however, there ...
Koehler K - - 1976
Most earlier studies and all studies on national samples in Scandinavia and in England and Wales have shown that schizophrenics have a significant excess of births in the early months of the year when compared with the expected distribution of the normal population. The present German study, carried out on ...
Adelstein P - - 1976
The files of the Oxford Record Linkage Study were employed to identify 220 infants presenting with infantile hypertrophic pyloric stenosis (IHPS) in the 6-year period 1966 to 1971. Information on these infants was obtained from birth certificates and maternity notes. The overall incidence was 2.5 per 1000 livebirths. There was ...
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