Biomedical subjects

M Stroebe

Publications and source records attributed to M Stroebe.

7 recordsLinked to original sources

PubMed2004

Long-range transport and global fractionation of POPs: insights from multimedia modeling studies.

The long-range transport of persistent organic pollutants (POPs) is investigated with two multimedia box models of the global system. ChemRange is a purely evaluative, one-dimensional steady-state (level III) model; CliMoChem is a two-dimensional model with different temperatures, land/water ratios and vegetation types in different latitudinal zones. Model results are presented for three case studies: (i) the effect of atmospheric aerosol particles on the long-range transport of POPs, (ii) the effect of oceanic deposition on the long-range transport of different PCB congeners, (iii) the global fractionation of different PCB congeners. The model results for these case studies show: (i) the low atmospheric half-lives estimated for several organochlorine pesticides are likely to be inconsistent with the observed long-range transport of these compounds; (ii) export to the deep sea reduces the potential for long-range transport of highly hydrophobic compounds (but does not remove these chemicals from the biosphere); (iii) there are different meanings of the term global fractionation that refer to different aspects of the fractionation process and need to be distinguished. The case-study results further indicate that the influences of varying environmental conditions on the physicochemical properties and the degradation rate constants of POPs need to be determined.

Air Movements↗

PubMed2001

The traumatization of grief? A conceptual framework for understanding the trauma-bereavement interface.

Scientific opinion differs on whether pathological (or complicated, traumatic) grief is an entity distinct from post-traumatic stress disorder. Some argue that it is different, and for the creation of a new category of pathological grief for the DSM system, while others consider bereavement and associated grief reactions to fall within the category of traumatic life events, for which the existing system would offer adequate classification. Although investigators have begun to explore similarities and differences in the trauma and bereavement domains, there is still confusion and lack of consensus about definitions and basic concepts. A conceptual framework, suggested here, may help bring clarity to the area. Our analysis shows that the lack of consensus about the nature of reactions and disorders of bereavement is due to concentration on different parts of the framework. Furthermore, the lack of differentiation between traumatic and non-traumatic bereavement has caused neglect of the unique features of non-traumatic grief reactions. These components need further exploration, especially since extension of DSM classification is currently under consideration.

Adaptation, Psychological↗

PubMed2000

On the classification and diagnosis of pathological grief.

It has been suggested that pathological grief should become either a separate category of mental disorder or be integrated within existing, extended classifications in systems such as the Diagnostic and Statistical Manual of Mental Disorders. Despite strong arguments for inclusion, and advancements by scientists toward development of diagnostic classification, there has been a lack of critical evaluation. Several issues need further scrutiny and clarification. These concern the definition of pathological grief, the distinction of pathological from normal grief, its relationship with other disorders, and the lack of agreement among scientists about criteria for pathological grief. Further research needs to focus on delineation of syndromes that comprise "pathological grief," and on derivation of acceptable, valid, diagnostic criteria. Evaluation of the ramifications--both positive and potentially negative--associated with the revision of the diagnostic status of pathological grief needs also to be undertaken.

Grief↗

PubMed1996

The role of loneliness and social support in adjustment to loss: a test of attachment versus stress theory.

A longitudinal study of a matched sample of 60 recently widowed and 60 married men and women tested predictions from stress and attachment theory regarding the role of social support in adjustment to bereavement. Stress theory predicts a buffering effect, attributing the impact of bereavement on well-being to stressful deficits caused by the loss and assuming that these deficits can be compensated through social support. In contrast, attachment theory denies that supportive friends can compensate the loss of an attachment figure and predicts main effects of marital status and social support. Attachment theory further suggests that marital status and social support influence well-being by different pathways, with the impact of marital status mediated by emotional loneliness and the impact of social support mediated by social loneliness. Results clearly supported attachment theory.

Adaptation, Psychological↗

PubMed1992

Broken hearts or broken bonds. Love and death in historical perspective.

Psychological theories and practices frequently neglect the extent to which their subject matter is historically and culturally defined. This issue is explored in the context of theories and therapies related to bereavement. Contemporary orientations emphasize the importance of breaking bonds with the deceased and the return of survivors to autonomous lifestyles. Placing the orientation in cultural and historical context reveals that it is largely a product of a modernist worldview. Within the romanticist ethos of the preceding century, such breaking of bonds would destroy one's identity and the meaning of life. In light of contemporary variations in subcultural meanings and values, a postmodern view is suggested in which reflexive responsibility is focal.

Adaptation, Psychological↗

PubMed1991

Does "grief work" work?

This article challenges the long-standing belief in the necessity of "grief work" for adjustment to bereavement. Evidence is offered from a prospective study of 30 widows and 30 widowers that indicates that grief work is not always as essential for adjustment to bereavement as theorists and clinicians have claimed. Widows who avoided confronting their loss did not differ in their depression scores from widows who worked through their grief. However, for widowers, performance of grief work was associated with better adjustment over an 18-month period. The implications of these findings for the grief work hypothesis are considered.

Adaptation, Psychological↗

PubMedDate not supplied

The dual process model of coping with bereavement: rationale and description.

There are shortcomings in traditional theorizing about effective ways of coping with bereavement, most notably, with respect to the so-called "grief work hypothesis." Criticisms include imprecise definition, failure to represent dynamic processing that is characteristic of grieving, lack of empirical evidence and validation across cultures and historical periods, and a limited focus on intrapersonal processes and on health outcomes. Therefore, a revised model of coping with bereavement, the dual process model, is proposed. This model identifies two types of stressors, loss- and restoration-oriented, and a dynamic, regulatory coping process of oscillation, whereby the grieving individual at times confronts, at other times avoids, the different tasks of grieving. This model proposes that adaptive coping is composed of confrontation--avoidance of loss and restoration stressors. It also argues the need for dosage of grieving, that is, the need to take respite from dealing with either of these stressors, as an integral part of adaptive coping. Empirical research to support this conceptualization is discussed, and the model's relevance to the examination of complicated grief, analysis of subgroup phenomena, as well as interpersonal coping processes, is described.

Adaptation, Psychological↗