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PubMed2003

Impulsivity and verbal deficits associated with domestic violence.

While neurobiological factors are known to play a role in human aggression, relatively few studies have examined neuropsychological contributions to propensity for violence. We previously demonstrated cognitive deficits among men who committed domestic violence (batterers) compared to non-violent controls. Batterers had deficits in verbal ability, learning and executive problem-solving ability. These findings led us to examine whether executive control problems involving impulsivity contribute to problems with behavioral control among batterers, and to further examine their deficits in verbal functioning. Batterers (n = 41) enrolled in a domestic violence program were compared to 20 non-violent men of similar age, education, and socioeconomic background on neuropsychological tests of executive functioning, including impulsivity. Questionnaires and structured clinical interviews were used to assess emotional distress, aggression and self-reported impulsivity. Batterers showed greater impulsivity compared to non-batterers on several neuropsychological measures. Yet, the severity of these deficits was relatively mild and not evident in all batterers. Consistent with our previous findings, significant verbal deficits were again observed among the batterers. These findings suggest that while impulsivity may be a factor associated with domestic violence, it probably is not the sole determinant of the strong relationship between cognitive functioning and batterer status that we previously observed. Both verbal expressive deficits and behavioral impulsivity appear to be relevant variables in predisposing men to domestic violence.

Adult↗

PubMed2002

Introducing domestic violence assessment in a postpartum clinical setting.

OBJECTIVES: Attempts to introduce assessment for exposure to domestic violence in health care settings have met with limited success, in spite of widespread knowledge of the prevalence of spousal abuse and its implications for women's health. We assessed the utility of Rogers' model of institutional change for the implementation of a universal screening program for domestic violence in postpartum clinical settings. METHODS: We adapted Rogers' innovation-diffusion model to develop and implement a protocol for domestic violence assessment among 300 nurses working in two hospitals that together provide obstetrical care to the City of Vancouver, British Columbia, Canada. Our education sessions introduced new knowledge and addressed attitudes and beliefs. They were followed by "hands-on" demonstration and supervision of assessments. Our "Let's Talk" visual aids program added visibility to our initiative and provided cues as to how to undertake screening and response. Screening rates were monitored along with a process evaluation based on anecdotal reporting by nursing staff. RESULTS: Following the initiation of educational sessions and supervision of assessment, the screening rate was 42%. Within 6 months, the screening rate had climbed to 60% and was sustained at that level. Major barriers to screening include difficulty in finding the opportunity to screen in privacy and overcoming language barriers. CONCLUSIONS: Application of Rogers' principles of diffusion of innovation in the implementation of a universal program for a domestic violence in two obstetrical care settings resulted in a screening rate of 60% which has been sustained for the first 18 months of the program.

British Columbia↗

PubMed2003

Next steps in research on children exposed to domestic violence.

The papers in this special issue of Clinical Child and Family Psychology Review provided an overview of what is known about children's exposure to domestic violence, and include indications of gaps in extant research. These gaps and research needs are summarized in this conclusion. Specifically, there is need for further research in several broad areas: definition and measurement of children's exposure to domestic violence; development of research methods and statistical designs that provide detailed information and provide for evidence of intervention effectiveness; impact of domestic violence on parenting and family functioning; the role of child factors and exposure to violence factors in predicting developmental risk and resilience; medical and health consequences of exposure to violence; and the nature of child-system interaction in response to domestic violence. Research needs in these areas are discussed in greater detail, and specific questions are raised for further development.

Child↗

PubMed1995

Desensitization and resensitization to violence against women: effects of exposure to sexually violent films on judgments of domestic violence victims.

An experiment was conducted to examine the effects of repeated exposure to sexually violent films on emotional desensitization and callousness toward domestic abuse victims. Results indicated that emotional response, self-reported physiological arousal, and ratings of the extent to which the films were sexually violent all diminished with repeated film exposure. Three days following exposure to the final film, experimental participants expressed significantly less sympathy for domestic violence victims, and rated their injuries as less severe, than did a no-exposure comparison group. Five days after the final film exposure, their level of sensitivity to the domestic violence victims had rebounded to baseline levels established by the comparison group. Emotional responsiveness at the final film exposure was correlated with levels of sensitivity to the domestic violence victims 3 days later but not at subsequent observation points.

Adult↗

PubMed2003

The impact of domestic violence on the maternal-child relationship and preschool-age children's functioning.

Although preschool-age children are at risk for witnessing domestic violence, the majority of research has focused on children ages 6 to 12 years. This study examines the mediating role of the mother-child relationship on preschool-age children's functioning in families experiencing domestic violence. Maternal report and behavioral observations of mother-child interactions were used to assess relationship quality. Participants consisted of 103 children and their mothers. The data fit the model well but indicated that some of the correlations were not in the expected direction. Although depressed mothers were struggling with parenting, other mothers appeared to be compensating for the violence by becoming more effective parents. Domestic violence negatively impacted children's behavior with their mothers in interactions but did not influence maternal report of problem behaviors, suggesting that the impact of domestic violence begins very early and in the realm of relationships rather than in mental health.

Adult↗

PubMed2003

DNA markers reveal the complexity of livestock domestication.

A series of recent genetic studies has revealed the remarkably complex picture of domestication in both New World and Old World livestock. By comparing mitochondrial and nuclear DNA sequences of modern breeds with their potential wild and domestic ancestors, we have gained new insights into the timing and location of domestication events that produced the farm animals of today. The real surprise has been the high number of domestication events and the diverse locations in which they took place - factors which could radically change our approach to conserving livestock biodiversity resources in the future.

Animals↗

PubMed2001

Genetic relationship amongst the major non-coding regions of mitochondrial DNAs in wild boars and several breeds of domesticated pigs.

We completed phylogenetic analysis of the major non-coding region of the mitochondrial DNA (mtDNA) from 159 animals of eight Euro-American and six East Asian domesticated pig breeds and 164 Japanese and five European wild boars. A total of 62 mtDNA haplotypes were detected. Alignment of these regions revealed nucleotide variations (including gaps) at 73 positions, including 58 sites with transition nucleotide substitutions, and two transversion substitutions. Phylogenetic analysis of the sequences could not organize domestic pig breeds into discrete clusters. In addition, many of the haplotypes found in members of diverged clustering groups were found primarily in Euro-American pig breeds, indicating extensive introgression of Asian domestic pigs into European breeds. Furthermore, phylogenetic analysis allocated the DNA sequences of non-coding regions into two different groups, and the deepest branchpoint of this porcine phylogeny corresponded to 86 000-136 000 years before present. This time of divergence would predate the historical period when the pig is thought to have been domesticated from the wild boar.

Animals↗

PubMed1999

Health visitors' perceptions of domestic violence: the private nature of the problem.

This study investigates health visitors' perceptions of domestic violence with a focus on the abuse of women by their male partners. Criticism has been levied at health visitors for responding inappropriately to women who seek help. There has been limited research into the process of health visiting practice in dealing with this emotive health need. The extent of the problem is difficult to ascertain, but estimates would suggest that it is a major public health issue. The abuse frequently commences or intensifies during pregnancy, and many of the women who experience domestic violence have children of pre-school age. It is during this time that they are most likely to come into contact with the health visiting service. The research was carried out in two National Health Service (NHS) trusts, one in the London region and the other in the south-east of England. A brief questionnaire was sent to all health visitors within the NHS trusts to ascertain the numbers of abused women known to the health visiting service. The findings suggest that the majority of health visitors in both NHS trusts were involved with families where domestic violence occurs. One of the key themes which emerged from interviews with 12 health visitors from each NHS trust (n = 24) was the very private nature of domestic violence in terms of identifying the issue. Implications for practice are that health visitors need to be more proactive in their questioning techniques and in influencing public policy, but they also require support through the provision of appropriate training.

Attitude of Health Personnel↗

PubMed2003

Widespread occurrence of a domestic dog mitochondrial DNA haplotype in southeastern US coyotes.

Sequence analysis of the mitochondrial DNA control region from 112 southeastern US coyotes (Canis latrans) revealed 12 individuals with a haplotype closely related to those in domestic dogs. Phylogenetic analyses grouped this new haplotype in the dog/grey wolf (Canis familiaris/Canis lupus) clade with 98% bootstrap support. These results demonstrate that a male coyote hybridized with a female dog, and female hybrid offspring successfully integrated into the coyote population. The widespread distribution of this haplotype from Florida to West Virginia suggests that the hybridization event occurred long ago before the southeastern USA was colonized by coyotes. However, it could have occurred in the southeastern USA before the main front of coyotes arrived in the area between male coyotes released for sport and a local domestic dog. The introgression of domestic dog genes into the southeastern coyote population does not appear to have substantially affected the coyote's genetic, morphological, or behavioural integrity. However, our results suggest that, contrary to previous reports, hybridization can occur between domestic and wild canids, even when the latter is relatively abundant. Therefore, hybridization may be a greater threat to the persistence of wild canid populations than previously thought.

Animals↗

PubMed2003

IgA and secretory component (SC) in the third eyelid of domestic animals: a comparative study.

OBJECTIVE: The third eyelid of domestic animals is important for the production and distribution of tears, in removing ocular debris and in protection of the globe, and has significant immunologic functions. Although it is known that tears contain antibodies of the immunoglobulin A (IgA) isotype which are produced mainly by plasma cells of the lacrimal gland, very little is known about the antibody repertoires in the third eyelid of domestic animals. To assess whether IgA is derived from local synthesis, we analyzed the location of IgA-producing cells and the cellular distribution of secretory component (SC) in the third eyelid of domestic animals in a comparative study. ANIMAL STUDIED: A total of 83 third eyelids of dogs, cats, pigs, cows, sheep, goats and horses were investigated in the course of this study. PROCEDURES: Third eyelids were obtained immediately after death, cut length-wise, fixed overnight and processed for immunohistochemical detection of IgA and SC by the ABC technique. RESULTS: The results show that IgA-producing plasma cells are densely populated in subepithelial spaces of the surface epithelium as well as in the nictitating gland in a species-specific manner. In contrast, the SC could be demonstrated exclusively in glandular acinar and ductal epithelial cells and in different cell types of the surface epithelium, preferentially located on the bulbar side of the nictitating membrane. CONCLUSION: It is suggested that most of the SC is locally produced by resident plasma cells and subsequently transferred through the surface epithelium and glandular duct cells by transcytosis. This indicates that the third eyelid is an important member of the secretory immune system in domestic animals.

Animals↗

PubMed2002

A realistic view of domestic violence screening in an emergency department.

Sutherland Hospital is a district hospital serving The Sutherland Shire, a metropolitan area of Sydney. It has a population of approximately 220,000 which is predominantly Anglo-Saxon in ethnic origin. The Emergency Department provides emergency services for 30,000 new patients per annum. New South Wales Department of Health obtained Commonwealth funding from Partnerships Against Domestic Violence to pilot routine screening for domestic violence within 2 Area Health Services. One of the participating sites was the Emergency Department in South East Sydney Area Health Service. The aim was for nursing and medical staff to screen, for three months, all women sixteen years old and over. Information cards on state-wide domestic violence resources and referral flow charts were developed for the pilot. Staff undertook training and issues were addressed prior to the screening. In this article we will discuss the findings, including the rate of screening by the staff, disclosure rate of domestic violence, and action taken on disclosure. We will then proceed to explain the difficulties in undertaking screening within an Emergency Department, and make recommendations for those Emergency Departments interested in commencing screening.

Adolescent↗

PubMed2006

Domestic violence during pregnancy in Turkey and responsibility of prenatal healthcare providers.

The purpose of this study was to estimate prevalence and risk groups of domestic violence during pregnancy in Manisa, Turkey, and to determine antenatal complications or health problems and health service use. This study was a population-based, cross-sectional, and household survey. The study universe included two primary health units situated in two different socioeconomic areas (rural and urban) in the city of Manisa, Turkey, from January to June 2004; the homes of 246 women were visited and the study sample included 217 women. A questionnaire was used that comprised sociodemographic and reproductive characteristics, and the Domestic Violence Against Women Determination Scale, developed by Yanikkerem in 2002 to measure the frequencies of type and severity of violence. The Statistical Package for the Social Sciences (SPSS, version 10.0 for Windows) was used to analyze the data. Student t test and Mann-Whitney U test were used to evaluate data. Results indicated that 9.7% of women were beaten by their partner during the pregnancy (17.3% in the rural area and 2.7% in the urban area) and 14.3% of women were beaten before pregnancy. A total of 10.6% of women said they had been slapped, 9.1% reported an object was thrown at them by their partner, and 6.5% admitted to having been kicked during pregnancy. A total of 36.4% of women reported experiencing forced sexual activity. Abused pregnant women were less educated, had lower income, were unmarried, were multiparous, had more children, had a longer duration of marriage, lived rural areas, were more likely to have unplanned pregnancies, had miscarriage, had an interpregnancy interval of 2 years or less, smoked more cigarettes, did not visit a health institution for control during pregnancy and did not know the sex or knew the fetus was female when compared with nonabused women. Abused women who live with various problems during pregnancy and are victims of violence tend to feel isolated, insecure, and depressed. Our results indicate that most pregnant women do not report that their prenatal care providers discussed violence with them. Healthcare provides have an important role in this issue. Antenatal care protocols should be modified to address domestic violence and contributing factors during pregnancy so that identified women can be counseled appropriately and attempts can be made to intervene to prevent further episodes of domestic violence in primary care settings.

Confidence Intervals↗

PubMed1999

Risk factors for injury to women from domestic violence.

BACKGROUND: Domestic violence is the most common cause of nonfatal injury to women in the United States. To identify risk factors for such injuries, we examined the socioeconomic and behavioral characteristics of women who were victims of domestic violence and the men who injured them. METHODS: We conducted a case-control study at eight large, university-affiliated emergency departments. The 256 intentionally injured women had acute injuries resulting from a physical assault by a male partner. The 659 controls were women treated for other conditions in the emergency department. Information was collected with a standardized questionnaire; no information was obtained directly from the male partners. RESULTS: The 256 intentionally injured women had a total of 434 contusions and abrasions, 89 lacerations, and 41 fractures and dislocations. In a multivariate analysis, the characteristics of the partners that were most closely associated with an increased risk of inflicting injury as a result of domestic violence were alcohol abuse (adjusted relative risk, 3.6; 95 percent confidence interval, 2.2 to 5.9); drug use (adjusted relative risk, 3.5; 95 percent confidence interval, 2.0 to 6.4); intermittent employment (adjusted relative risk, 3.1; 95 percent confidence interval, 1.1 to 8.8); recent unemployment (adjusted relative risk, 2.7; 95 percent confidence interval, 1.2 to 6.5); having less than a high-school-graduate's education (adjusted relative risk, 2.5; 95 percent confidence interval, 1.4 to 4.4); and being a former husband, estranged husband, or former boyfriend (adjusted relative risk, 3.5; 95 percent confidence interval, 1.5 to 8.3). CONCLUSIONS: Women at greatest risk for injury from domestic violence include those with male partners who abuse alcohol or use drugs, are unemployed or intermittently employed, have less than a high-school-graduate's education, and are former husbands, estranged husbands, or former boyfriends of the women.

Acute Disease↗

PubMed2001

Farmed deer: new domestic animals defined by controlled breeding.

The domestication of plants and animals is recognized as pivotal in mankind's social evolution. Yet, surprisingly few species have actually been farmed, prompting speculation as to which attributes are needed for successful domestication. Although red deer were the staple source of meat throughout Europe in the mesolithic, they have not been widely domesticated, leading many ethologists to argue that they are behaviourally unsuitable. Recently, the most widely accepted criterion of domestication, the ability of farmers to control the breeding of a species, has been fulfilled in red and other species of deer with the widespread adoption of even the most technologically advanced methods of artificial breeding. Simultaneously and conversely, the population growth of wild deer in many temperate parts of the world has stimulated a search for contraceptive techniques.

Animals↗

PubMed2006

Recent Southeast Asian domestication and Lapita dispersal of sacred male pseudohermaphroditic "tuskers" and hairless pigs of Vanuatu.

Recent analyses of global pig populations revealed strict correlations between mtDNA phylogenies and geographic locations. An exception was the monophyletic "Pacific clade" (PC) of pigs not previously linked to any specific location. We examined mtDNA sequences of two varieties of Vanuatu sacred pigs, the male pseudohermaphroditic Narave from the island of Malo (n = 9) and the hairless Kapia from the island of Tanna (n = 9), as well as control pigs (n = 21) from the islands of Malo, Tanna, and Epi and compared them with GenBank sequences to determine (i) the distribution of PC and introduced domestic lineages within Vanuatu, (ii) relationship between the Narave and Kapia, and (iii) origin of the PC. All of the Narave share two PC mtDNA sequences, one of which matches the sequence of a Narave collected in 1927, consistent with an unbroken maternal descent of these intersex pigs from the original pigs brought to Vanuatu 3,200 years ago. One-third of the Kapia share a single PC lineage also found in the Narave. The remaining Kapia lineages are associated with recently introduced, globally distributed domestic breeds. The predominant Narave lineage is also shared with two wild boars from Vietnam. These data suggest that PC pigs were recently domesticated within Southeast Asia and dispersed during the human colonization of Remote Oceania associated with the Lapita cultural complex. More extensive sampling of Southeast Asian wild boar diversity may refine the location of Pacific pig domestication and potentially the proximate homeland of the Lapita cultural complex.

Animals↗

PubMed2002

Mitochondrial DNA and the origins of the domestic horse.

The place and date of the domestication of the horse has long been a matter for debate among archaeologists. To determine whether horses were domesticated from one or several ancestral horse populations, we sequenced the mitochondrial D-loop for 318 horses from 25 oriental and European breeds, including American mustangs. Adding these sequences to previously published data, the total comes to 652, the largest currently available database. From these sequences, a phylogenetic network was constructed that showed that most of the 93 different mitochondrial (mt)DNA types grouped into 17 distinct phylogenetic clusters. Several of the clusters correspond to breeds and/or geographic areas, notably cluster A2, which is specific to Przewalski's horses, cluster C1, which is distinctive for northern European ponies, and cluster D1, which is well represented in Iberian and northwest African breeds. A consideration of the horse mtDNA mutation rate together with the archaeological timeframe for domestication requires at least 77 successfully breeding mares recruited from the wild. The extensive genetic diversity of these 77 ancestral mares leads us to conclude that several distinct horse populations were involved in the domestication of the horse.

Animals↗

PubMed2001

Helicobacter pylori infection in rural China: exposure to domestic animals during childhood and adulthood.

Little is known about the mode of transmission of Helicobacter pylori, one of the most common human bacterial infections. Some domestic animals, including the cat, have been suggested as a reservoir of H. pylori disease, but the data have been inconsistent. This paper evaluates the role of exposure to pets and other domestic animals in the etiology of H. pylori in a rural area of China with a high prevalence of H. pylori infection. In this double-blind, population-based, cross-sectional investigation, interviews were completed with 3,288 (1994 seropositive, 1,019 seronegative, 275 indeterminate) H. pylori-infected adults enrolled in a randomized intervention trial in Linqu County, Shandong Province, China. We found no evidence to suggest that exposure to pets or other domestic animals during either childhood or adulthood was related to the prevalence of H. pylori infection. In fact, odds ratios (ORs) were reduced for subjects who had kept a cat (OR = 0.7, 95% CI = 0.4-1.0) or any animal (OR = 0.5, 95% CI = 0.3-0.9) in the house as an adult, or a cat as a child (OR = 0.7, 95% CI =0.5-1.0). ORs were also reduced for all 11 types of animal studied that subjects had kept in their courtyard as an adult. These findings suggest that zoonotic transmission, including that from domestic cats, is an unlikely route of H. pylori infection in this rural Chinese population.

Adult↗

PubMed1984

Energy allocation and reproductive development in wild and domestic house mice.

The growing mammal has many competing demands for energy, including some that are associated specifically with reproductive development. The concern of the present experiment was with the effect of domestication on energy allocation in relation to puberty. Food consumption, rate of growth, fertility onset, fat deposition and spontaneous locomotor activity were compared during peripubertal development in both sexes of two stocks of house mice, one wild and one domestic. The onset of fertility occurred much earlier in CF-1 females than it did in wild females; in sharp contrast the males of these two stocks achieved fertility at the same time. Food consumption, growth rate and final body weight were greater and locomotor activity was depressed in both sexes of the domestic stock. Proportionately less fat was deposited throughout development in CF-1 females when compared to wild females; fat deposition increased during development in CF-1 males while decreasing in wild males. Most of the energy-related differences noted here are compatible with a hypothesis that selection during domestication has focused on the need for a larger mass of the female mouse which, in turn, has been required to support a larger litter size. With specific regard to the reproductive development of the female, the data presented here are not compatible with the hypothesis that the first ovulation is regulated directly by critical amounts of body fat.

Animal Population Groups↗