bluuebunny/crossref_metadata_2025 huggingface dataset:
Improving dynamic software analysis by applying grammar inference principles
Authors: Walkinshaw Neil , Bogdanov Kirill , Holcombe Mike , Salahuddin Sarah
Published: July 2008

Grammar inference is a family of machine learning techniques that aim to infer grammars from a sample of sentences in some (unknown) language. Dynamic analysis is a family of techniques in the domain of software engineering that attempts to infer rules that govern the behaviour of software systems from a sample of executions. Despite their disparate domains, both fields have broadly similar aims; they try to infer rules that govern the behaviour of some unknown system from a sample of observations. Deriving general rules about program behaviour from dynamic analysis is difficult because it is virtually impossible to identify and supply a complete sample of necessary program executions. The problems that arise with incomplete input samples have been extensively investigated in the grammar inference community. This has resulted in a number of advances that have produced increasingly sophisticated solutions that are more successful at accurately inferring grammars from (potentially) sparse information about the underlying system. This paper investigates the similarities and shows how many of these advances can be applied with similar effect to dynamic analysis problems by a series of small experiments on random state machines. Copyright © 2008 John Wiley & Sons, Ltd.
National Board Certification (NBC) as a catalyst for teachers' learning about teaching: The effects of the NBC process on candidate teachers' PCK development
Authors: Park Soonhye , Oliver J. Steve
Published: July 2008

This study examined how the National Board Certification (NBC) process, especially the portfolio creation, influenced candidate teachers' pedagogical content knowledge (PCK). In a larger sense, this study aimed to construct a better understanding of how teachers develop PCK and to establish ecological validity of the National Board assessments. Qualitative research methods, most notably case study, were utilized. Participants were three high school science teachers who were going thorough the NBC process. Data sources included classroom observations, interviews, teachers' reflections, and researcher's field notes. Data were analyzed using the constant comparative method and enumerative approach. Findings indicated that the NBC process affected five aspects of the candidate teachers' instructional practices that were closely related to PCK development: (a) reflection on teaching practices, (b) implementation of new and/or innovative teaching strategies, (c) inquiry‐oriented instruction, (d) assessments of students' learning, and (e) understanding of students. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 812–834, 2008
On selecting the best transmission mode for WiFi devices
Authors: Mohammad Hossein Manshaei , Mathieu Lacage , Ceilidh Hoffmann , Thierry Turletti
Published: July 2008

The design of efficient IEEE 802.11 physical (PHY) rate adaptation algorithms is a challenging research topic and usually the issues surrounding their implementations on real 802.11 devices are not disclosed. In this paper, we identify and evaluate the key parameters to design such algorithms. We then present a survey on existing PHY rate adaptation mechanisms and discuss their advantages and drawbacks. We also propose three new 802.11 PHY rate adaptation mechanisms, named adaptive auto rate fallback (AARF), closed loop adaptive rate allocation (CLARA), and adaptive multi‐rate retry (AMRR). AARF, proposed for low‐latency systems, has low complexity and obtains similar performance than RBAR in stationary and non‐fading wireless channels. CLARA is a culmination of the best attributes of the transmitter‐based ARF and RBAR control mechanisms with additional practical features such as adaptive fragmentation to improve multipath‐fading channel sensing and to provide feedback control signaling. AMRR is designed for high‐latency systems; it has been implemented and evaluated on an AR5212‐based device. Experimentation results show more than 20% performance improvement in throughput over the default algorithm implemented in the AR5212 MADWIFI driver. Copyright © 2008 John Wiley & Sons, Ltd.
Prospects and problems of wireless communication for underwater sensor networks
Authors: Lanbo Liu , Shengli Zhou , Jun‐Hong Cui
Published: July 2008

This paper reviews the physical fundamentals and engineering implementations for efficient information exchange via wireless communication using physical waves as the carrier among nodes in an underwater sensor network (UWSN). The physical waves under discussion include sound, radio, and light. We first present the fundamental physics of different waves; then we discuss and compare the pros and cons for adopting different communication carriers (acoustic, radio, and optical) based on the fundamental first principles of physics and engineering practice. The discussions are mainly targeted at underwater sensor networks (UWSNs) with densely deployed nodes. Based on the comparison study, we make recommendations for the selection of communication carriers for UWSNs with engineering countermeasures that can possibly enhance the communication efficiency in specified underwater environments. Copyright © 2008 John Wiley & Sons, Ltd.
Minimally Invasive Management of Pancreatic Abscess, Pseudocyst, and Necrosis: A Systematic Review of Current Guidelines
Authors: Loveday Benjamin P. T. , Mittal Anubhav , Phillips Anthony , Windsor John A.
Published: July 2008

Background

Minimally invasive techniques have been used to manage infected pancreatic necrosis and its local complications, although there are no randomised trials to evaluate these techniques. The aims of this study were to review the scope and quality of recommendations in current clinical practice guidelines on the role of percutaneous catheter drainage and endoscopic techniques for pancreatic abscess, pseudocyst, and infected pancreatic necrosis and identify the degree of consensus between guidelines.

Methods

A MEDLINE search was performed to identify current guidelines from any professional body published in the English language. Guidelines were analysed to determine their specific recommendations for using percutaneous catheter drainage and endoscopic techniques to manage pancreatic abscess, infected pseudocyst, and infected pancreatic necrosis.

Results

Sixteen guidelines were reviewed. Percutaneous catheter drainage for pancreatic abscess was recommended by eight guidelines; for infected pseudocysts, one guideline did not recommend its use and six recommended its use; for infected necrosis, two guidelines did not recommend its use and four recommended its use. Endoscopic management of both pancreatic abscess and infected pseudocyst was recommended by seven guidelines; for infected necrosis, endoscopic management was recommended by ten guidelines. Ten guidelines did not include levels of evidence to support their recommendations.

Conclusions

Guidelines lacked consensus in their recommendations for minimally invasive management of pancreatic abscess, infected pseudocyst, and infected necrosis, and few recommendations were graded according to the strength of the evidence. More prospective trials are needed to provide evidence where it is lacking, which should be incorporated into clinical practice guidelines.
Introspection of ancient Chinese literature research in the 20th century
Authors: Lin HUANG
Published: July 2008

This paper aims at an introspection of the ancient Chinese literature research in the past hundred years. Then the author put forward his opinions about some important divergences of the present research, such as the value tropism of the research, the basic methods for study, the choice of research topics, the theory guidelines of the research, the basic methodologies for research, defining the research objects, the major viewpoints, the areas of research and the viewpoints of the scholars.
Cultural studies of the East Asian civilization in the dawn: On the dating of the creation mythology period in East Asia
Authors: Shaodang YAN
Published: July 2008

Based on a study of mythological literatures in China, Korea and Japan, this paper is intended to set up the coordinate axis which can estimate the time period of the Creation Mythology and therefore fix the period of the Myth of Origin in the Creation Mythology group in the three countries, and set up a time-platform suitable for East Asian mythology studies.
Two dimensional incompressible ideal flow around a thin obstacle tending to a curve
Authors: Lacave Christophe
Published: July 2008

In this work we study the asymptotic behavior of solutions of the incompressible two dimensional Euler equations in the exterior of a single smooth obstacle when the obstacle becomes very thin tending to a curve. We extend results by Iftimie, Lopes Filho and Nussenzveig Lopes, obtained in the context of an obstacle tending to a point, see [D. Iftimie, M.C. Lopes Filho, H.J. Nussenzveig Lopes, Two dimensional incompressible ideal flow around a small obstacle, Comm. Partial Differential Equations 28 (1–2) (2003) 349–379].
Biobanking for better healthcare
Authors: Riegman Peter H.J. , Morente Manuel M. , Betsou Fay , de Blasio Pasquale , Geary Peter
Published: July 2008

Translational cancer research is highly dependent of large series of cases including high quality samples and their associated data. Comprehensive Cancer Centers should be involved in networks to enable large‐scale multi‐center research projects between the centers [Ringborg, U., de Valeriola, D., van Harten, W., Llombart‐Bosch, A., Lombardo, C., Nilsson, K., Philip, T., Pierotti, M.A., Riegman, P., Saghatchian, M., Storme, G., Tursz, T., Verellen, D, 2008. Improvement of European translational cancer research. Collaboration between comprehensive cancer centers. Tumori 94, 143–146.]. Combating cancer knows many frontiers. Research is needed for prevention as well as better care for those who have acquired the disease. This implies that human samples for cancer research need to be sourced from distinct forms of biobanking. An easier access to these samples for the scientific community is considered as the main bottleneck for research for health, and biobanks are the most adequate site to try to resolve this issue [Ozols, R.F., Herbst, R.S., Colson, Y.L., Gralow, J., Bonner, J., Curran Jr., W.J., Eisenberg, B.L., Ganz, P.A., Kramer, B.S., Kris, M.G., Markman, M., Mayer, R.J., Raghavan, D., Reaman, G.H., Sawaya, R., Schilsky, R.L., Schuchter, L.M., Sweetenham, J.W., Vahdat, L.T., Winn, R.J., and the American Society of Clinical Oncology, 2007. Clinical cancer advances 2006: major research advances in cancer treatment, prevention, and screening: a report from the American Society of Clinical Oncology. J. Clin. Oncol. 25, 146–162.].

However, biobanks should not be considered a static activity. On the contrary, biobanking is a young discipline [Morente, M.M., Fernandez, P.L., de Alava, E. Biobanking: old activity or young discipline? Semin. Diagn. Pathol., in press.], which need continuously evolve according to the permanent development of new techniques and new scientific goals. To accomplish current requirements of the scientific community biobanks need to face some essential challenges including an appropriate design, harmonized and more suitable procedures, and sustainability, all of them in the framework of their ethic, legal and social dimensions.

This review therefore presents an overview on these issues, based on the works and discussions of the Marble Arch International Working Group on Biobanking for Biomedical Research, integrated by experts in biobanking from five continents.
Anatomy of systemic change polish management in transition
Authors: Kozminski Andrzej K.
Published: July 2008

This article deals with the consequences of systemic change in one of the transition countries of Central and Eastern Europe: Poland. Analysis is focused on two interrelated areas: management practice and management education. Unique characteristics of Polish economy, society and management are addressed. Business environment characterized by deep and prolonged institutional, economic and social change leads to “generalized uncertainty”. Four distinctively different phases of managerial response to this environment are analyzed: survival, functional restructuring, process restructuring and continuous improvement. Each one of them calls for different kind of managerial competences. Cultural change is indicated as a key factor conditioning the process of buildup of managerial competence and managerial identity transfer. Management education is perceived as the most important facilitator of this process, which developed under the strong influence of Western practice. Two phases of this development are identified: early imitation and mature imitation. Because of strong economic pressures triggered by transition environment, highly competitive market of educational services in the field of management emerged in Poland.
Spina bifida and anencephaly: a problem in genetic–environmental interaction
Authors: Carter C. O.
Published: July 2008

Anencephaly and spina bifida cystica, malformations of the central nervous system, are due to failure of closure of the neural tube. These malformations are a major cause of stillbirth, infant death and (in the case of spina bifida) of childhood morbidity in Britain today.

Their aetiology is not known in detail. There are, however, indications from family studies and from the striking racial variation in their incidence (which is in part at least maintained after migration) that genetic factors are important in their causation. There is also evidence from maternal age and birth order effects, secular and seasonal variation, and social class effects that environmental factors also are important in their aetiology.
Heights and Weights of Schoolchildren in St Vincent
Authors: Ashcroft M. T. , Antrobus A. C. K.
Published: July 2008

Heights and weights were measured of 5600 children aged 5 to 14 years, of predominantly African origin, attending primary schools situated in rural areas of St Vincent. The mean size of these children was intermediate between that of London children recorded in 1905 to 1912 and in 1959 and not greatly different from that found in recent years in most other parts of the West Indies. These St Vincent children were larger than those measured in a small survey 20 years ago. For a given height, they were lighter than London children in 1959 and obesity was much less common. Signs of serious malnutrition were rare. A standard of mean heights and weights of West Indian children from lower socio-economic classes and of predominantly African origin has been calculated from the results of recent surveys in five different countries.
An Analysis of Coital Patterns
Authors: Barrett J. C.
Published: July 2008

Data concerning occasions of coitus were recorded by 241 married couples who had sought advice from the Catholic Marriage Advisory Council about the basal body temperature method of regulating births. The present analysis deals with the 6 days of the post-ovulatory phase which are considered to be least affected by intended birth regulation. The distribution among couples of coital frequencies is tabulated by age of wife; the mean frequency during the 6 days is 1·8 (Table 2) but this value may be influenced by the fact that some couples had avoided coitus in the pre-ovulatory phase. The hypothesis is examined that the probability of coitus on any day is unaffected by whether or not coitus occurred on the previous day. Sufficient data are available to show, as expected, that not all couples behave in the way described by this hypothesis. It is estimated that for about a third of the couples the probability of coitus is decreased if it occurred on the previous day (alternators). There are also significant numbers for whom it is increased (persisters), besides those conforming to the hypothesis.
Effect of Desired Sex Composition in Families on the Birth Rate
Authors: Talwar Prem P.
Published: July 2008

This paper attempts to assess, by assuming the sex of a live birth to be a binomial event, the contribution of desires for specific sex compositions to the level of birth rate. Data from India are utilized to quantify the contribution. It is found that the birth rate in India could be greatly reduced by an effective campaign of limiting family size to three, even if the campaign were accepted by only those couples who had achieved their desired family composition.
Families with a Child with Epilepsy: A Sociological Contribution
Authors: Mulder H. C. , Suurmeijer T. P. B. M.
Published: July 2008

This paper reports a pilot study of thirteen children with epilepsy and their families; the parents' efforts to obtain help for the child and the effect of the child's disability on the family relationships are described. About half of the parents did not consult the family doctor immediately after the first appearance of signs of epilepsy (patient delay). About a quarter of the family doctors delayed referral of the patient with epilepsy to the specialist (doctor's delay). Another 3 years passed, on average, before the patient reached a special centre or clinic for epilepsy (specialist delay); in three-quarters of all cases the first step to get there was taken by the parents and not by the specialist and chance plays an important role in determining how the entry into this third echelon is achieved. Reasons for the search for more specialized help were: dissatisfaction with the results of the treatment and the kind of rapport with the second echelon specialist. The out-patient clinic for epilepsy is generally favourably commented on because the expert medical advice is combined with the availability of a social worker, thus offering support with social problems also. As regards the influence of the illness on the family, there is evidence that family life is disrupted to a greater or less extent. The parents experience psychological stress and are generally apprehensive lest something will happen to their child. In a number of cases the relationships between siblings are rather disturbed. The parents, especially mothers, tend to (over-)protect the child with epilepsy. The child with epilepsy has a relatively isolated position in his social environment; he has few informal or formal social contacts with his peer group. The condition epilepsy contributes to a diminution of expectations for the future and curtailment of scholastic behaviour.
On Comparison of Birth Interval Distributions
Authors: Suchindran C. M. , Lingner J. W.
Published: July 2008

Frequently it is of interest to compare the distributions of birth intervals for two or more population subgroups. Such analysis can serve as a useful adjunct to conventional studies of differential fertility.

This paper discusses several statistical tests which can be used to test differences in the distributions of the length of birth order specific intervals when these distributions are obtained using life table techniques. Since such estimates involve incomplete or arbitrarily censored intervals, conventional statistical tests are not appropriate.

The tests are illustrated through application to data from the 1965 National Fertility Survey. Data on the occurrence and timing of third and fourth births are shown to be significantly different for black and white currently married women. Comparisons among income groups, however, fail to show significant differences.
Fertility Pattern of Japanese Agricultural Settlers in Eastern Bolivia
Authors: Kashiwazaki Hiroshi
Published: July 2008

The fertility of Japanese agricultural immigrants settled in eastern Bolivia was studied in comparison with Japanese populations in South Brazil and in Japan. The fertility of the Japanese in Bolivia was found to be high compared with the contemporary Japanese living in Japan, and lay between the levels for South Brazil in 1952 and for Japan in 1970. It is supposed that the Japanese immigrant women in Bolivia maintained the high level of fertility which was prevailing in Japan at the time when they had emigrated, while the level of fertility in Japan had declined remarkably.
Genetical, Environmental and Personality Factors Influencing the Age of First Sexual Intercourse in Twins
Authors: Martin N. G. , Eaves L. J. , Eysenck H. J.
Published: July 2008

A study of MZ and DZ twins suggests that cultural differences are less important than individual environmental experiences in determining the age of first sexual intercourse. Certain personality factors are found to be correlated with this trait and there is also evidence that genetical differences may predispose individuals to cross this threshold at an earlier or a later age.
The Statistical Analysis of Menstrual Bleeding Patterns
Authors: Snowden Robert
Published: July 2008

Conclusion and summary

The proposed method of bleeding pattern analysis avoids the problem of defining the menstrual cycle. The difficulty of maintaining a cyclical approach becomes acute when methods of fertility regulation are used which are known to disrupt seriously previously experienced bleeding patterns.

By using eight simple measures relating to the pattern of bleeding over a fixed period of time, it is possible to present sensitive indicators previously available but not used. These indicators will permit a more meaningful comparison of data obtained from different groups of women or for the same woman over time. The eight measures relate to the number, average duration and variability of bleeding episodes taking place within a defined period of time; the variability of the bleeding-free interval; the average duration and variability of the bleeding episode and its succeeding bleeding-free interval; and the number of days on which bleeding has occurred.

Agreement was reached by the Workshop participants regarding the terms to be used, the definition of these terms, the statistical approach to be adopted and the analytical procedures to be followed in the analysis of bleeding patterns. It is hoped that this alternative approach to bleeding pattern analysis will assist researchers, clinicians and other investigators in the collection, analysis and interpretation of menstrual bleeding patterns.

An example of this approach is given in the following paper by D. Mayes. This example is based on data in the form of diary cards made available to the Family Planning Research Unit, Exeter University, by John Guillebaud of the Churchill Hospital, Oxford.
Polygyny and Fertility Differentials among the Yoruba of Western Nigeria
Authors: Ahmed J.
Published: July 2008

Data were analysed from the 1973 surveys of the Nigerian segment of the Changing African Family (CAFN) Project which covered Yoruba women and men in Ibadan and the western state of Nigeria. The Yoruba women in monogamous unions and those in polygynous unions show slightly varying levels of fertility, measured as mean number of children ever born. Most of this variation can be attributed to other variables; type of union of the women does not significantly affect their fertility level.
Multivariate Analysis of Infant and Child Mortality in Java and Bali
Authors: Hull Terence H. , Gubhaju Bhakta
Published: July 2008

Application of a multivariate analytical technique to the World Fertility Survey data for Java and Bali indicates that demographic variables, particularly the length of the preceding birth interval, are more important in explaining infant and child mortality differentials than are such social variables as education of parents or urban–rural residence. These findings are weakened to some extent by the lack of satisfactory data on household economic status which might have provided a better base for indirectly discerning the effects of nutrition and sanitation on mortality at young ages.
Who Remains Celibate?
Authors: Kiernan Kathleen E.
Published: July 2008

Who are the men and women who are single in their mid-30s? This study, which uses life history data for a British cohort born in 1946, shows that an important minority are ‘handicapped’ and these adults are cared for primarily by their families, in particular by elderly parents. Celibates tend to be more introverted, ambitious and to have older marrying parents than their ever-married peers. Single women differ from single men. The women are more likely to be of higher ability, to be graduates and to be in high status occupations whilst single men are more likely to be members of the lowest social class or unemployed. The great majority of single people live either with their parents or on their own.
Contraception after Childbirth in Thailand
Authors: Kodel John , Kamnuansilpa Peerasit
Published: July 2008

Results from a 1984 national survey indicate that the large majority of Thai women initiate contraception soon after giving birth. Among sterilized women, the vast majority undergo the operation during the immediate post-partum period and thus avoid the risks of subsequent unwanted pregnancy. Rates of initiation of other methods are unusually high at and immediately following the time at which menses return, and hence only modest proportions of Thai women remain at risk of unwanted pregnancy for very long after the birth of a child.
Inbreeding Levels in Khartoum
Authors: Saha N. , Sheikh F. S.
Published: July 2008

Inbreeding coefficients were calculated from data on spouse relationships in a sample of 4833 marriages comprising 345 from three Nilotic tribes, 302 from two indigenous Negroid tribes, and 4186 from several Arab and other tribes. The average inbreeding coefficients were 0·0081 to 0·0145 in Nilotic tribes, 0·0251 to 0·0269 in indigenous Negroids, and 0·0286 to 0·0430 in Arab tribes. First cousin unions constituted about half of all the consanguineous marriages and the pattern of first cousin marriages was similar in all three groups. The inbreeding coefficient for the entire sample was 0·0317.
The Effect of Migration on Maximum Opportunity for Selection
Authors: Masaki Motofumi
Published: July 2008

The effect of migration on the maximum opportunity for selection is analysed using koseki data, the Japanese family registration records, of a village population in a small island. When selection intensity is divided into two components, migration greatly influences the variance of the mortality component of the original formula. The difference in selection intensity, with and without allowance for migration, is conspicuous in the recent cohort; the intensity, with a migration component, shows a consistent increase, whereas it declined in the original formula. The implications of this are discussed in the context of the genetic structure of a population of small size, changing rapidly over time.
Measurement of Post-Partum Amenorrhoea in Bangladesh
Authors: Rahman M. Mujibur
Published: July 2008

Reported information on the duration of post-partum amenorrhoea usually shows considerable number preference, particularly at 6-monthly intervals. This paper presents a technique for smoothing such amenorrhoea data using a modified exponential curve. An attempt has also been made to estimate the average number of months a mother is expected to remain amenorrhoeic.
Birth Order and Health Status in a British National Sample
Authors: Kaplan Bernice A. , Mascie-Taylor C. G. N. , Boldsen Jesper
Published: July 2008

Analysis of British National Child Development Study data corroborates the long held views that first born children tend to get more medical surveillance than those of later birth order, and that there is a direct relationship between achieved family size and social status.
Correlation Between Subsequent Lengths of Postpartum Amenorrhoea in a Prospective Study of Breast-Feeding Women in Rural Bangladesh
Authors: Ford Kathleen
Published: July 2008

The relationship between subsequent lengths of lactational amenorrhoea for individual women in a prospective study of breast-feeding women in Bangladesh was studied. The data indicate that previous length of amenorrhoea has significant predictive value for the subsequent length of amenorrhoea. Information on previous experience with lactational amenorrhoea should be therefore incorporated into guidelines for the introduction of family planning during lactation.
Given Name Relationships Support Surname ‘Genetics’: A Note and Correction
Authors: Lasker Gabriel W. , Raspe Pamela D.
Published: July 2008

Analysis of a further four samples of first names in the index of marriages registered in England and Wales in the first 3 months of 1975 support the claim that there is no significant difference of ‘between’ versus ‘within’ registration district Ri. Since given names show none of the localisation seen in surnames, the surname geography is ascribable to genetic rather than cultural factors of personal naming. The correct formulations for coefficient of relationship by isonymy are given.
Pre-Marital Fertility in Liberia
Authors: Parr Nicholas J.
Published: July 2008

This analysis of the 1986 Liberia Demographic and Health Survey data finds remarkably high fertility levels among women who have never married or lived with a man, reflecting widespread pre-marital sex and a lack of use of contraception. It is found that single Liberian women are more likely to foster out children than married Liberian women of the same age.
A Survey of Papua New Guinean Parturients at the Port Moresby General Hospital: Family Planning
Authors: Klufio Cecil A. , Amoa Apeawusu B. , Kariwiga Grace
Published: July 2008

A survey of 673 consecutive Papua New Guinean parturients at the Port Moresby General Hospital, in May and June 1990, showed that 28% had ever used a family planning (FP) method, chiefly a hormonal method (93% of ever-users). Only seventeen of 239 (7·1%) nulliparae had ever used an FP method, compared with 170 of 434 (39·2%) parous subjects. Education of mother and of husband were independently and significantly associated with FP ever-use. Seventeen (4·9%) of 347 women who had a surviving child, had not breast-fed the child. The interval between the birth of the surviving child and the start of the index pregnancy was significantly associated with the duration of breast-feeding; the longer the duration of breast-feeding, the longer the inter birth interval.
Demographic and Sociocultural Factors Influencing Contraceptive Use in Uganda
Authors: Agyei William K. A. , Migadde Micheal
Published: July 2008

Bivariate and multivariate analyses of the influence of demographic and sociocultural factors on contraceptive knowledge, attitudes and practice among currently married respondents in Uganda show that: (1) contraceptive knowledge is widespread, even among women with no education; (ii) the majority of the respondents have favourable attitudes towards contraceptive use; (iii) the level of contraceptive use is low in comparison with knowledge and attitudes. Post-primary education, ethnicity, residence, the presence of the spouse in the household and discussion of family planning with spouse were strong predictors of knowledge and favourable attitudes towards contraception. Secondary or higher education, discussion of family planning with spouse and urban residence strongly influenced contraceptive use, but child mortality did not. The use of condoms as a behavioural change to avoid contracting HIV/AIDS was low. The results suggest that, particularly in rural areas, family planning services are not meeting the needs of potential clients.
Religion and Fertility in the Outer Hebrides
Authors: Clegg E. J. , Cross J. F.
Published: July 2008

Estimates of fertility in Protestant Barra and Catholic Harris, islands in the Outer Hebrides, over the period 1856–1985, show that in both islands fertility declined, although marital fertility was generally greater than in Scotland as a whole, and illegitimate fertility was less. However, in Barra during 1966–75 there were pronounced rises in all the indices; illegitimate fertility showed the smallest rise. The publication of the papal encyclical Humanae Vitae may have played a part in this change in fertility, although other, probably local, factors must have been acting, as the first rise in numbers of births occurred before the publication of the encyclical. Other than this transient rise, the religious difference between Harris and Barra had little effect on changes in fertility over the whole period.

Indices of proportions married showed declines until after World War 2, followed by steep increases. The marked decline in fertility in both islands may be due in part to this low nuptiality. In addition, a trend of occupation away from traditional crofting and fishing towards more skilled mercantile and professional employment may have played a role.
Patterns of Cortisol and Adrenaline Variation in Australian Aboriginal Communities of the Kimberley Region
Authors: Schmitt Lincoln H. , Harrison G. Ainsworth , Spargo Randolph M. , Pollard Tessa , Ungpakorn Giles
Published: July 2008

Urinary cortisol and adrenaline excretion rates were measured in three Australian Aboriginal communities in the Kimberley region in the north-west of the country. The three communities, Derby, Kalumburu and Kupungarri, differ in size and remoteness and some lifestyle parameters. Cortisol excretion rate is associated with age and urine flow rate, but there is no association with smoking or the consumption of alcohol. All three communities show very high cortisol excretion rates compared to a sample of UK (Oxford) residents and there are also differences between the three communities. Adrenaline excretion rate also shows associations with age and urine flow rate, but not with smoking. Aboriginal people in the Kimberley region excrete adrenaline at a slightly higher rate than that found in Oxford, which itself is high by world standards. There are no marked differences between communities in their adrenaline excretion rates. Alcohol drinkers in Derby, where alcohol is freely available, have higher adrenaline output than non-drinkers.
A Triplet Maternity in a Reduced Population with Excessive Twinning
Authors: Sheets John W.
Published: July 2008

In 1991 a triplet maternity of same-sex (FFF) occurred in a depopulated community of Argyll, Scotland, with a history of excessive, same-sex twinning. Due to a stillbirth and its confidentiality, the maternity was recorded as a twin birth. Using public registers may result in underestimation of rates for higher multiple conceptions and births in local districts.
Prolonged lactation and family spacing in Rwanda
Authors: Bonte M. , van Balen H.
Published: July 2008

Data were collected from 368 Rwanda women, 50 non-lactating and 318 lactating, to determine the effect of lactation on conception rate and the return of menstruation. During lactation the majority of conceptions were found to be delayed by some 15 months, but the family spacing effect was maximal during the first 9 months. By 27 months after delivery the contraceptive effect of lactation can be assumed to have largely disappeared.
Studies on the fertility of radiologists
Authors: Czeizel A. , Bene E.
Published: July 2008

Reproductive performance and some of the more important features of their progeny were studied in 755 radiologists and in 346 laboratorians as controls in order to investigate the possible genetic injuriousness of ionizing radiation. Significant differences were found only in fertility: the fertility of female radiologists was significantly lower than that of the female laboratorians and of the wives of male radiologists. This phenomenon is probably explained by a more extended use of the methods of birth control by female radiologists due to roentgenophobia.
Intervals between births in families containing one set of twins
Authors: Wyshak Grace
Published: July 2008

Data for 6910 families each containing one set of twins have been obtained from genealogical records in the Archives of the Mormon Church in Salt Lake City and analysed according to intervals between births. The findings indicate that intervals following singleton females are shorter than those following singleton males, particularly in sibships in which the sex ratio (excluding twins) is high. This relationship holds, with few exceptions, when sibship size is held constant and whatever the sex of the following child. There is no evidence in these data that the interval between births is shorter when the children are of the same sex. Our most striking finding is that twins tend to be preceded by an unusually long interval.
Attempted suicide and the experience of violence
Authors: Whitlock F. A. , Broadhurst A. D.
Published: July 2008

Some of the literature on the interrelationships between suicidal acts, accidents, surgical operations and other forms of violent experience is reviewed.

It was postulated that persons making suicidal attempts would, more commonly than non-suicidal controls, have encountered violent experiences during their life-time. To test this hypothesis, 50 persons attempting suicide were compared with 50 non-suicidal psychiatric patients and with 50 healthy persons attending a chest clinic. The groups were matched for age, sex and social class.

Using a questionnaire, all relevant data were recorded. Classes of violent experience were graded numerically on a basis of severity and on the degree of responsibility of the person involved. It was found that the suicidal patients had significantly higher violence scores than either control group, a finding which remained significant when previous suicidal attempts were excluded from the score. The possible implications of this finding are discussed.
Multiple births in Australia, 1944–63
Authors: Pollard G. N.
Published: July 2008

From statistics on Australian confinements during the period 1944–63 it seems that the following conclusions can legitimately be drawn:

(1) The proportion of multiple births increases with increasing age of mother up to about age 37, turns, and decreases thereafter.

(2) The proportion of multiple births increases with increasing age of father up to about age 34–38 and is fairly constant thereafter.

(3) The variation with age of father, however, only arises because of the high correlation with age of mother which is the determining factor.

(4) The proportion of multiple confinements increases with birth order. This effect holds for all ages of mother except those over 40 where there is no significant variation.

(5) The proportion of multiple confinements decreases from the first year of marriage to the second, then increases steadily to a maximum after about 15 years of marriage and then decreases slightly.

(6) The proportion of binovular twins increases steadily with increasing age of mother up to about age 37, turns, and thereafter decreases steadily.

(7) The proportion of monovular twins increases slightly with increasing age of mother up to about age 37 and is fairly constant thereafter.

(8) From the small amount of data it appears that the proportion of triplets also increases with increasing age of mother.
Biological Aspects of a High Socio-Economic Group
Authors: Gibson John B.
Published: July 2008

Data are presented on the social backgrounds and IQs of a sample of scientists, their male sibs and their fathers. The range of IQ in the scientists is similar to the range of scores expected of the higher 25% of a representative general population sample.

The IQs of the scientists showed a positive correlation with social class. Differences in IQ between the scientists and their fathers in each social class are related to the distance the scientists have moved up the social scale. In the twenty-two families in which the IQs of the father and two male sibs are known the upwardly mobile sibs tend to have higher IQs than the non-mobile or downwardly mobile sibs.

In Class II there is evidence that stabilizing selection operates on IQ to maintain the mean IQ level. The effect on social stratification of such selection, together with increased educational opportunity, is discussed.
The Hull Family Survey
Authors: Peel John
Published: July 2008

This paper describes the main findings of the first stage in a planned longitudinal study of marriage and family planning amongstarepresentative sample of recently married couples in a northern city. The long-term aim of the research is to evaluate, by means of interivews repeated at successive 5-year intervals in the lives of these couples, the relationship between intended and achieved family size and to assess the factors associated with relative success and failure. The initial series of interviews provides much new information on patterns of mate selection, marriage and family planning intentions; it also represents the only recent survey of contraceptive behaviour during the first year of marriage.

The major determinants of family-building behaviour are assessed and, amongst these, religion is found to be the most significant. Its effects are, however, mitigated by considerable marrying out amongst Catholics. The notion of the married couple as a rational decision-making unit in matters of family planning is supported by this survey and there is a rela tionship between desired family size and the efficacy of contraceptive usage. Two points of major methodological interest in fertility analysis are dis cussed.
Social Class Relatedness in Some Oxfordshire Parishes
Authors: Harrison G. A. , Hiorns R. W. , Küchemann C. F.
Published: July 2008

Based on data obtained from the marriage registers of seven Oxfordshire parishes in the Otmoor region, an analysis has been made of the effects of social mobility and marriage exchanges on the relatedness of the five social classes which are recognized by the Registrar General. From a starting position in which it is assumed that there was no relatedness between the classes, it is calculated that under the average social mobility patterns which have characterized the area from 1837 to 1967 the different social classes would come to share 95% of their ancestry in sixteen generations. The marriage movement would produce the same levels of relatedness in twenty generations, and the combined effects of social mobility and marriage produce homogeneity in nine generations. It is further argued that these are maximal estimates but in considering the genetic implications it is noted that, whilst genes which do not affect social mobility and marriage movement are not likely to show social stratification in Otomoor populations, genes affecting behavioural traits may well be heterogeneously distributed.
Standardization Procedures in the Analysis of Cross-National Variations in Illegitimacy Measures
Authors: Hartley Shirley Foster
Published: July 2008

Although an interest in illegitimacy as a societal phenomenon is often limited by the scarcity of data, we may utilize recognized procedures of standardization in estimating illegitimacy ratios and rates where none are reported.

When we know only the age-specific marital status of women in the childbearing years (15 to 44) we may utilize age-specific legitimate and illegitimate fertility rates of the high and low illegitimacy countries, Jamaica and Japan, to estimate the range within which a national ratio would fall. In all there are sixty-eight major countries of the world for which we have that minimum data on age and marital status of females.

Some of those countries also report the number and percentage of illegitimate births but offer no information on age-specific rates. In those cases we may compare the ratios produced by the four model sets of rates (run against actual age and marital status for the sixty-eight nations) with the ratio actually reported by individual countries. Where the ratio produced by a model matches the reported ratio, with similar crude birth rates, we may assume similar age-specific legitimate and illegitimate fertility rates. Even where there is no perfect match we still learn something of the general pattern of rates.

Finally, the output of the standardization procedure also allows a comparison of the relative importance of marital status versus differential illegitimate fertility rates in determining the percentage of births out of wedlock.

While we must recognize the problems inherent in international comparisons of illegitimacy, the subject is of such significance that we cannot and we need not wait for more, or more perfect, data to be available. Rather, an increased interest in maximizing whatever comparative data we do find, may, in itself, aid in the improvement of methods and reliability of collection and publication of relevant information.
The Relationship of the Post-Ovulatory Phase of The Menstrual Cycle to Total Cycle Length
Authors: Bailey Judith , Marshall John
Published: July 2008

The basal body temperature was recorded by 1353 healthy fertile women aged 18 to 49 years inclusive through 12,247 cycles. The post-ovulatory (hyperthermic) phase of the cycle was significantly longer by 1·31 days in cycles with a slow or staircase rise of temperature than in cycles with an acute rise. The hyperthermic phase increased in length in a rectilinear fashion from 10 to 13 days as the total cycle length rose from 22 to 29 days; over total cycle lengths from 29 to 33 days the length of the hyperthermic phase remained around 13 days.
Growth of the Asai child of the Madang district of New Guinea
Authors: Malcolm L. A.
Published: July 2008

A total of 249 children and 805 adults living in the Asai valley of the New Guinea highlands was examined and measured for height, weight, sitting height and skinfold thickness. Mean ages for groups of children were calculated from regression equations of height on age for different dental stages.

The growth of the Asai child in all measured parameters is slower than that reported from any other world situation. The relationship between the growth of the Asai child and adult size confirms the finding, previously reported for New Guinean populations, that adult stature in a traditional society is proportionally related to, and possibly determined by, the growth rate of children in that society.

Adult stature, which is at the lower end of the range for New Guinean populations, falls slightly with age, due to a decrease in trunk length. Weights and skinfold thickness, in common with other New Guinean populations, show a progressive fall with age.

The role of malnutrition in the slow growth pattern is discussed and evidence is presented from New Guinean and other studies to support the hypothesis that natural selection for slow growth and shorter adult height occurs in conditions of nutritional deprivation.
Projections of the growth of the coloured immigrant population of England and Wales
Authors: Thomas C. J.
Published: July 2008

In this paper an attempt is made to indicate how the number of coloured people in England and Wales might be expected to grow in the future. The best available estimate of the initial distribution by sex and age of the coloured population would appear to be that prepared by the Institute of Race Relations and this has been used by the author. Suitable assumptions are made regarding the fertility of the immigrants and possible rates of immigration. The calculations are illustrative, with the objective of providing a framework within which a discussion of the growth of the coloured immigrant community of Britain can proceed. The results obtained are summarized in Table 3.
Social class and marriage patterns in some Oxfordshire populations
Authors: Harrison G. A. , Hiorns R. W. , Küchemann C. F.
Published: July 2008

A study has been made from parish records of the patterns of marital movement from 1837 to the present day in the Otmoor region of Oxfordshire. The social classes of brides and grooms have been taken into account.

It is shown that the spatial mobility of the different classes is markedly different, and in the earlier part of the period this difference is evident even on a very local scale. Social class distributions themselves vary according to population size and this variation affects the nature of marital exchange between the different populations in the area. Spatially exogamous as compared with endogamous grooms, however, do not appear to differ in their preferences for the social class of brides. There is marked assortative marriage for social class in Classes II and IV but both brides and grooms of Class III, especially in the present century, choose their partners more or less randomly with respect to social class.