468 results on '"Dawson, David L."'
Search Results
152. Iliac Artery Kinking with Endovascular Therapies: Technical Considerations
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Dawson, David L., primary, Hellinger, Jeffrey C., additional, Terramani, Thomas T., additional, Najibi, Sasan, additional, Martin, Louis G., additional, and Lumsden, Alan B., additional
- Published
- 2002
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153. Comparative effects of cilostazol and other therapies for intermittent claudication
- Author
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Dawson, David L, primary
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- 2001
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154. Female-perpetrated sexual abuse: a review of victim and professional perspectives.
- Author
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Clements, Hannah, Dawson, David L, and das Nair, Roshan
- Subjects
ATTITUDE (Psychology) ,CINAHL database ,MEDICAL information storage & retrieval systems ,NURSING databases ,PSYCHOLOGY information storage & retrieval systems ,INTERPERSONAL relations ,MEDICAL personnel ,MEDLINE ,SEX offenders ,GENDER role ,VICTIMS ,WOMEN ,SYSTEMATIC reviews ,EVIDENCE-based medicine ,PROFESSIONAL practice ,WELL-being ,SEVERITY of illness index - Abstract
Professional attitudes towards female-perpetrated sexual abuse (FPSA) reportedly reflect the gender-role expectations found in broader society, which cast males almost exclusively as sexual aggressors or willing sexual recipients, females as sexually non-coercive or victims and male-perpetrated sexual abuse as particularly significant or injurious. Such views, however, appear to stand in contrast to the perspectives of individuals who have experienced FPSA. This paper details a systematic review of peer-reviewed quantitative and qualitative literature examining these different (professional and victim) perspectives. Although the methodological shortcomings of primary papers limit the conclusions that can be drawn, the findings suggest that victim and professional perspectives of FPSA remain discrepant; professionals generally considered FPSA as less serious, less harmful and less deserving of investigation than male-perpetrated abuse; while victims of FPSA felt their experiences influenced significantly their psychological wellbeing and abilities to form and maintain interpersonal relationships. These findings are discussed in relation to professional practice and suggestions for future research. [ABSTRACT FROM AUTHOR]
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- 2014
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155. Cilostazol Has Beneficial Effects in Treatment of Intermittent Claudication
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Dawson, David L., primary, Cutler, Bruce S., additional, Meissner, Mark H., additional, and Strandness, D. Eugene, additional
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- 1998
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156. The Role of Infrapopliteal MR Angiography in Patients Undergoing Optimal Contrast Angiography for Chronic Limb-threatening Ischemia
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Leyendecker, John R., primary, Elsass, Kelcey D., additional, Johnson, Stephen P., additional, Diffin, Daniel C., additional, Cull, David L., additional, Light, Jerry T., additional, and Dawson, David L., additional
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- 1998
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157. Ultrasound determination of total arterial wall thickness
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Hodges, Timothy C., primary, Detmer, Paul R., additional, Dawson, David L., additional, Bergelin, Robert O., additional, Beach, Kirk W., additional, Hatsukami, Thomas S., additional, Zierler, Brenda K., additional, Isaacson, Janette A., additional, and Strandness, D.Eugene, additional
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- 1994
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158. Vascular Grafts In Head And Neck Reconstructive Surgery
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Fujitani, Roy M., primary, Cull, David L., additional, and Dawson, David L., additional
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- 1994
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159. Mental health mobile application self‐help for adolescents exhibiting psychological distress: A single case experimental design.
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Badesha, Kiran, Wilde, Sarah, and Dawson, David L.
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EXPERIMENTAL design , *WELL-being , *MOBILE apps , *MENTAL health , *HELP-seeking behavior , *TREATMENT effectiveness , *EXPERIENCE , *PATIENTS' attitudes , *TEENAGERS' conduct of life , *PSYCHOLOGICAL adaptation , *PSYCHOLOGICAL distress , *HEALTH self-care , *BEHAVIOR modification , *COGNITIVE therapy , *TELEMEDICINE - Abstract
Objectives: The present demand for child and adolescent mental health services exceeds the capacity for service provision. Greater research is required to understand the utility of accessible self‐help interventions, such as mobile apps. This study sought to investigate whether use of a mental health app, underpinned by CBT, led to changes in psychological distress amongst adolescents. Mechanisms of change were examined, specifically whether changes are attributable to cognitive strategies. Design: This study utilised a multiple‐baseline single‐case experimental design, tracking variables across baseline and intervention phases. Surveys assessing participant experience were also administered. Methods: Five participants with moderate‐to‐severe levels of psychological distress engaged with a CBT‐based app over five weeks. Participants were recruited from both a well‐being service and the general population. Supplementary weekly calls to participants offered clarification of app content. Results: A small overall effect of the intervention of psychological distress was evident; however, outcomes were dependent on the analysis conducted. The intervention appeared to promote an increase in use of adaptive cognitive strategies but not negative thinking styles. The CBT app did not promote changes in participant well‐being. Participant feedback highlighted practical challenges of utilising the app. Conclusions: The clinical benefits of app‐based CBT were small, and a range of barriers to engagement were recognised. While further research is required, caution should be exercised in the interpretation of studies reporting on app effectiveness. [ABSTRACT FROM AUTHOR]
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- 2023
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160. The role of duplex scanning and arteriography before carotid endarterectomy: A prospective study
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Dawson, David L., primary, Zierler, R.Eugene, additional, Strandness, D.Eugene, additional, Clowes, Alxander W., additional, and Kohler, Ted R., additional
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- 1993
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161. The role of duplex scanning and arteriography before carotid endarterectomy: A prospective study
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Vescera, Candace L., primary, Dawson, David L., additional, Zierler, R. Eugene, additional, Strandness, D. Eugene, additional, and Clowes, Alxander W., additional
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- 1993
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162. Letter to the editor
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Dawson, David L., primary, Johansen, Kaj H., additional, and Jurkovich, Gregory J., additional
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- 1993
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163. Use of Skin Staplers in Experimental Gastrointestinal Injuries
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DAWSON, DAVID L., primary, COIL, JAMES A., additional, JADALI, MANSOUR, additional, and GARRETT, GINA, additional
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- 1992
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164. Application of duplex ultrasound imaging in determining in-stent stenosis during surveillance after mesenteric artery revascularization.
- Author
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Baker, Aaron C., Chew, Victoria, Li, Chin-Shang, Lin, Tzu-Chun, Dawson, David L., Pevec, William C., and Hedayati, Nasim
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DUPLEX ultrasonography -- Diagnostic use ,SURGICAL stents ,ARTERIAL stenosis ,PUBLIC health surveillance ,MESENTERIC artery ,REVASCULARIZATION (Surgery) ,ARTERIAL occlusions - Abstract
Objective: Currently, there are no well-established duplex ultrasound (DUS) criteria for the evaluation of the mesenteric arteries after stenting for occlusive disease. Previous studies suggested DUS velocity criteria in the native superior mesenteric artery (SMA) overestimate stenosis in stented arteries, but most studies have not evaluated DUS imaging after SMA stenting longitudinally. This study was undertaken to determine the accuracy of DUS after mesenteric artery revascularization and, in particular, to evaluate the utility of DUS imaging for the detection of in-stent stenosis (ISS) of the SMA. Methods: A retrospective record review was performed for all patients who underwent SMA stenting for chronic mesenteric ischemia at a single institution from January 2004 to May 2011. Results: Mesenteric artery occlusive disease resulted in 24 patients undergoing mesenteric stenting of the SMA alone (n = 20) or the SMA and celiac artery simultaneously (n = 3). The mean ± standard deviation peak systolic velocity (PSV) in 13 prestent DUS images of the SMA was 464 ± 130 cm/s. Prestenting angiography revealed an average SMA stenosis of 79% ± 14%. After stenting, completion angiography in each case revealed <20% residual stenosis. No significant correlation was identified between SMA PSV and angiographic stenosis before and after stenting (P > .05). Follow-up SMA DUS imaging showed an average PSV of 335 ± 138 cm/s at 0.9 ± 1.5 months, 360 ± 143 cm/s at 4.8 ±2.6 months, and 389 ± 95 cm/s at 14.4 ± 5.1 months. A significant difference existed between the prestent and the first poststent mean SMA PSV (P < .05), but no significant difference existed between each poststenting interval. Eight reinterventions for SMA ISS were performed, with a mean elevated in-stent SMA PSV of 505 ± 74 vs 341 ± 145 cm/s in patients who did not undergo reintervention. Angiography before the eight reinterventions demonstrated an average SMA ISS of 53% ± 25%. In-stent SMA PSV decreased from 505 ± 74 to 398 ± 108 cm/s after the reintervention (P < .05). Conclusions: Consistent with other reports, our data demonstrate the PSV in successfully stented SMAs remains higher than the PSV threshold of 275 cm/s used for the diagnosis of high-grade native SMA stenosis. In addition, in-stent SMA PSVs did not significantly change over DUS surveillance for patients who did not undergo reintervention. Thus, obtaining a baseline DUS early after mesenteric stenting should be considered to compare future surveillance DUS. An increase above this baseline or an in-stent SMA PSV approaching 500 cm/s should be considered suspicious for ISS, but larger prospective studies will be required to validate these preliminary findings. [Copyright &y& Elsevier]
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- 2012
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165. Hepatic Duct Disruption from Blunt Abdominal Trauma: Case Report and Literature Review
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DAWSON, DAVID L., primary and JURKOVICH, GREGORY J., additional
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- 1991
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166. What characteristics do service users with intellectual disability value in direct support staff within residential forensic services?
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Clarkson, Rachael, Murphy, Glynis H., Coldwell, Jon B., and Dawson, David L.
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YOUNG adults with disabilities ,PEOPLE with disabilities ,FOCUS groups ,EMPLOYEE training ,INTERVIEWING ,EMPLOYEE recruitment ,HONESTY ,TRUST ,EXPERIENCE - Abstract
Background This study explores the perceptions of a group of adults with intellectual disability regarding direct support staff. Method Semi-structured interviews relating to experiences of direct support staff were developed from two focus groups. These interviews were conducted with 11 adults with intellectual disability residing within a forensic inpatient service. Results Interpretative Phenomenological Analysis (IPA) revealed two superordinate themes; namely, staff relationship factors and positive and negative attributes of staff. The participants valued relationships with staff based on qualities such as honesty, trust, and a caring, nurturing manner that enabled individuals to feel safe. Staff characteristics such as immaturity, inexperience, and a short temper appeared to lead to feelings of discontentment amongst the participants. Conclusions The implications of the findings are discussed in relation to clinical practice, staff recruitment, and training. [ABSTRACT FROM AUTHOR]
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- 2009
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167. Mental disorder and adverse life events in a forensic intellectual disability service.
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Gore, Nick J and Dawson, David L
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PEOPLE with intellectual disabilities ,LIFE change events ,PERSONALITY disorders ,MENTAL health ,PEOPLE with disabilities - Abstract
The study investigated the frequency of adverse life events and prevalence of MD recorded for clients with intellectual disabilities (ID) in a medium secure unit, using data from an electronic patient record (EPR) system. Prevalence of MD was calculated on the basis of ICD-10 diagnoses and a 38-item checklist was developed to investigate adverse/traumatic life events for sub-samples with and without MD. High rates of MD were reported overall, particularly of schizotypal and delusional disorders and disorders of personality. Adverse life events including abuse, bereavement and relationship difficulties had been documented by clinicians. The overall number of recorded events was significantly higher for clients diagnosed with a MD. Associations between MD and life events have been reported previously, but not in a forensic ID population. The study contributes to a growing body of literature highlighting the relationship between life events and mental health in people with ID, offering further information for service development and clinical practice. [ABSTRACT FROM AUTHOR]
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- 2009
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168. Vascular Surgery: An Update.
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Lee, Eugene S., Dawson, David L., and Pevec, William C.
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VASCULAR surgery ,VASCULAR diseases ,CAROTID artery surgery ,SURGERY ,SURGICAL stents - Abstract
Caring for patients with vascular illnesses has become increasingly more complex and has changed dramatically over the past 10 years, with a widening array of diagnostic and treatment options. Carotid artery stenting has the potential to become a viable alternative to open surgery in high-risk patients with carotid artery disease (i.e., patients older than 80 years and those with previous neck surgery or irradiation, contralateral carotid artery occlusion, contralateral laryngeal nerve injury, or angina). However, the effectiveness of carotid artery stenting as a therapy is still being evaluated in randomized trials. Endovascular aortic aneurysm repair is an option for patients who desire or require a less invasive modality and who have suitable aortic anatomy. Surgical reconstruction remains the standard treatment for ischemic rest pain and tissue loss (critical limb ischemia). Balloon angioplasty and stenting are treatment options for peripheral vascular disease, although treatment is dependent on the arterial segment or segments involved. [ABSTRACT FROM AUTHOR]
- Published
- 2007
169. The profunda femoris artery: Variations and clinical applications
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Chleborad, William P., primary and Dawson, David L., additional
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- 1990
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170. Endovascular Therapy is Effective Treatment for Focal Stenoses in Failing Infrapopliteal Vein Grafts
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Westin, Gregory G., Armstrong, Ehrin J., Javed, Usman, Balwanz, Christopher R., Saeed, Haseeb, Pevec, William C., Laird, John R., and Dawson, David L.
- Abstract
To evaluate the efficacy of endovascular therapy for maintaining patency and preserving limbs among patients with failing infrapopliteal bypass grafts.
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- 2014
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171. Nitinol Self-Expanding Stents vs. Balloon Angioplasty for Very Long Femoropopliteal Lesions
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Armstrong, Ehrin J., Saeed, Haseeb, Alvandi, Bejan, Singh, Satinder, Singh, Gagan D., Keong Yeo, Khung, Anderson, David, Westin, Gregory G., Dawson, David L., Pevec, William C., and Laird, John R.
- Abstract
Purpose To compare the patency rates and clinical outcomes of balloon angioplasty vs. nitinol stent placement for patients with short (≤150 mm) as compared to long (>150 mm) femoropopliteal (FP) occlusive lesions.Methods Between 2006 and 2011, 254 patients (134 men; mean age 68 years) underwent FP angioplasty. The majority of patients (64%) were treated for critical limb ischemia. One hundred thirty-nine (55%) patients had short FP lesions ≤150 mm, while 115 patients had long FP lesions >150 mm. The mean lesion length was 78±43 mm in the short FP lesion group and 254±58 mm in the long FP lesion group. Duplex ultrasound follow-up with a peak systolic velocity ratio ≥2.0 was used to define restenosis.Results The overall procedure success rate was 98%. One hundred forty-eight (58%) patients underwent stent placement. The mean number of stents deployed for treatment of short FP lesions was 1.0±0.4 vs. 2.0±0.7 for long FP lesions (p<0.001). The primary patency rate of short FP lesions treated with balloon angioplasty vs. stenting was 66% vs. 63% at 1 year (p=0.7). For long FP lesions, the 1-year primary patency rates of balloon angioplasty vs. stenting were 34% vs. 49% (p=0.006). Balloon angioplasty of long FP lesions was also associated with significantly lower assisted primary and secondary patency compared to stenting (p<0.05 for all comparisons). Sustained clinical improvement was >90% at 30 days but declined to 62% to 75% at 1 year.Conclusion Balloon angioplasty and stent placement result in similar patency rates and clinical outcomes for shorter to medium-length FP lesions. In comparison, stent placement in long FP lesions is associated with superior outcomes to balloon angioplasty, even when multiple stents are required. Procedure success and clinical improvement can be achieved in the majority of patients, but rates of restenosis remain high.
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- 2014
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172. The Implicit Relational Assessment Procedure: Emerging reliability and validity data
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Golijani-Moghaddam, Nima, Hart, Aidan, and Dawson, David L.
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The Implicit Relational Assessment Procedure (IRAP) is a measure of ‘implicit cognition’ developed on the basis of a contemporary behavioural analysis of language and cognition. The IRAP has now been applied to a range of foci over 5 years of published research. A frequently-cited caveat in publications to date is the need for further research to gauge the reliability and validity of the IRAP as an implicit measure. This review paper will provide a critical synthesis of available evidence for reliability and validity. The review applies a multifaceted test-theory approach to validity, and reliability is assessed through meta-analysis of published data. The discussion critically considers reviewed IRAP evidence with reference to the extant literature on alternative implicit measures, limitations of studies to date, and broader conceptual issues.
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- 2013
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173. Phytochemicals as Therapeutic Interventions in Peripheral Artery Disease.
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Ismaeel, Ahmed, Greathouse, K. Leigh, Newton, Nathan, Miserlis, Dimitrios, Papoutsi, Evlampia, Smith, Robert S., Eidson, Jack L., Dawson, David L., Milner, Craig W., Widmer, Robert J., Bohannon, William T., and Koutakis, Panagiotis
- Abstract
Peripheral artery disease (PAD) affects over 200 million people worldwide, resulting in significant morbidity and mortality, yet treatment options remain limited. Among the manifestations of PAD is a severe functional disability and decline, which is thought to be the result of different pathophysiological mechanisms including oxidative stress, skeletal muscle pathology, and reduced nitric oxide bioavailability. Thus, compounds that target these mechanisms may have a therapeutic effect on walking performance in PAD patients. Phytochemicals produced by plants have been widely studied for their potential health effects and role in various diseases including cardiovascular disease and cancer. In this review, we focus on PAD and discuss the evidence related to the clinical utility of different phytochemicals. We discuss phytochemical research in preclinical models of PAD, and we highlight the results of the available clinical trials that have assessed the effects of these compounds on PAD patient functional outcomes. [ABSTRACT FROM AUTHOR]
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- 2021
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174. Predictors of Diagnostic Success With Renal Artery Duplex Ultrasonography
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Hedayati, Nasim, Del Pizzo, David J., Harris, Sean E., Kuskowski, Michael, Pevec, William C., Lee, Eugene S., Pifer, Christy, and Dawson, David L.
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Renal artery duplex ultrasonography (RA-DUS) is commonly used for the evaluation and follow-up of renal artery atherosclerotic disease. In a complete study, renal artery flow is evaluated from the vessel origin to the intraparenchymal branches. The quality of RA-DUS is in part technologist-dependent, but many factors may affect the ability to complete a diagnostic examination. This study evaluated the clinical and technical factors that predict the ability to obtain a complete RA-DUS examination.
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- 2011
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175. The American Association of Clinical Anatomists: The beginnings and first five years.
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Dawson, David L.
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- 1988
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176. Occurrence and distribution of valves in the canine hepatic portal system.
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Dawson, David L., Scott-Conner, Carol E. H., and Molina, Manuel E.
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- 1988
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177. Distal Pancreatectomy with Splenic Preservation: The Anatomic Basis for a Meticulous Operation.
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DAWSON, DAVID L. and SCOTT-CONNER, CAROL E.H.
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- 1986
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178. Functional interpretations of the radiographic anatomy of the femora of Myotis iucifugus, Pipistrellus subflavus, and Blarina brevicauda.
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Dawson, David L.
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- 1980
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179. The Role for Cryoplasty in the Treatment of Infrainguinal Artery Disease: Case Studies
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Laird, John R. and Dawson, David L.
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Cryoplasty has been shown to be safe and effective for the treatment of atherosclerotic lesions in the peripheral vasculature and offers the promise of improving on the results of percutaneous transluminal angioplasty (PTA) by limiting dissection, vessel recoil, and restenosis. The PolarCath Peripheral Dilatation System utilizes nitrous oxide rather than the standard mixture of saline and contrast medium to inflate and cool the balloon to the desired temperature of approximately −10°C. Cryoplasty can be used in combination with other therapies, can be repeated, and offers the advantage of not leaving any foreign objects in the body. In a multicenter registry of claudicants with de novo or restenotic femoropopliteal lesions and in a multicenter trial of CLI patients with infrapopliteal lesions (86.9% mean diameter stenosis, 33.9% occlusions), favorable results with primary cryoplasty included minimal need for bailout stenting, avoidance of repeat revascularization, and high amputation-free survival. We review cases in which cryoplasty was used for diffuse superficial femoral and popliteal artery disease, for infrapopliteal stenosis and occlusion, for in-stent restenosis, and as part of a hybrid strategy for treating multilevel occlusive disease. As these clinical cases demonstrate, cryoplasty therapy can be employed effectively as a primary strategy, or in conjunction with debulking, for the treatment of lesions of varying severity in different segments of the infrainguinal vasculature. Further studies will be required to better define the role of this therapy relative to the other modalities that are currently available for the treatment of femoropopliteal and infrapopliteal disease.
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- 2009
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180. The Effectiveness of EMDR for Medically Unexplained Symptoms: A Systematic Literature Review.
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Staton, Amelia, Wilde, Sarah, and Dawson, David L
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MEDICALLY unexplained symptoms , *EMDR (Eye-movement desensitization & reprocessing) , *POST-traumatic stress - Abstract
Introduction : It has been hypothesized that certain persistent physical symptoms (PPS) may be linked to unresolved traumatic or distressing somatic-symptom related memories. EMDR intervention targets and reintegrates distressing memories, thus reducing the re-experiencing of physical sensations. The primary aim of this review was to examine effectiveness of EMDR for PPS. Secondary aims were to investigate effectiveness of EMDR on secondary outcomes (post-traumatic stress, anxiety, and depression), and to evaluate the acceptability of EMDR for this client group. Method : Six electronic databases (PsycInfo, PsycArticles, CINAHL, MEDLINE, Web of Science and SCOPUS) were searched for peer-reviewed literature, with no restrictions on publication dates. Twenty-eight studies met inclusion criteria. Studies were included if the primary aim of EMDR intervention was to reduce intensity, frequency or reported distress associated with PPS. Studies were quality appraised using the MMAT tool prior to narrative synthesis of key findings. Results : Studies varied in design and included RCT, UCT, case study and case series. EMDR treatment length varied between studies; 1–20 sessions. All studies reported significant improvement in PPS at post-test. Effect sizes were available to report in five studies and ranged from moderate to large. Improvement in secondary outcomes were reported in all repeated measure studies. Where available, large effect sizes were reported for reduction in anxiety and depression. Overall drop-out rates in studies with representative samples was low (10.6%). Quality of research varied; low (42.8%), medium (21.4%), and high (35.7%). Conclusions : There is promising emerging evidence for effectiveness and acceptability of EMDR for a range of PPS. However, firm conclusions on efficacy cannot be made. While comparisons between PPS presentations cannot be drawn due to methodological differences, the findings for pain and tinnitus are the most compelling due to methodological quality. High-quality sufficiently powered RCTs are recommended to determine efficacy. [ABSTRACT FROM AUTHOR]
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- 2022
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181. Mental health mobile app use to manage psychological difficulties: an umbrella review.
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Badesha, Kiran, Wilde, Sarah, and Dawson, David L.
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MEDICAL quality control , *PSYCHOLOGY information storage & retrieval systems , *MEDICAL information storage & retrieval systems , *MOBILE apps , *SYSTEMATIC reviews , *MENTAL health , *HEALTH status indicators , *EVIDENCE-based medicine , *DESCRIPTIVE statistics , *MEDLINE , *PSYCHOLOGICAL distress - Abstract
Purpose: A rapid increase in global smartphone ownership and digital health technologies offers the potential for mobile phone applications (apps) to deliver mental health interventions. The purpose of this paper is to bring together evidence reporting on mental health mobile apps to gain an understanding of the quality of current evidence, the positive and adverse effects of apps and the mechanisms underlying such effects. Design/methodology/approach: A systematic search was carried out across six databases, for any systematic reviews or meta-analyses conducted up to 2020. Review quality was assessed using the Assessment of Multiple Systematic Reviews. Findings: Across a total of 24 articles, a variety of clinical outcomes were assessed. Most compelling support was shown for apps targeting anxiety symptoms; some evidence favoured the use of apps for depression symptoms. Less evidence was available for the remaining clinical symptoms such as bipolar disorder, schizophrenia, post-traumatic stress disorder, sleep disorders and substance use. Overall, there was limited evidence pertaining to adverse effects and change mechanisms and a lack of quality reporting across a large proportion of included reviews. The included reviews demonstrate the need for further robust research before apps are recommended clinically. Originality/value: This paper makes a valuable contribution to the current status of research and reviews investigating mental health mobile apps. Recommendations are made for improved adherence to review guidelines and to ensure risk of bias is minimised. [ABSTRACT FROM AUTHOR]
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- 2022
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182. Effect of Intermittent Pneumatic Compression of Food and Calf on Walking Distance, Hemodynamics, and Quality of Life in Patients with Arterial Claudication. A Prospective Randomized Controlled Study With 1-Year Follow-up.
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Dawson, David L. and Pevec, William C.
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INTERMITTENT claudication ,ARTERIOSCLEROSIS ,QUALITY of life ,HEMODYNAMICS ,ASPIRIN - Abstract
The authors evaluated the effect of intermittent pneumatic compression on the walking ability, peripheral hemodynamics and quality of life in patients with claudication. Forty-one patents with claudication were randomized to intermittent compression and aspirin or aspirin alone. Inflation for 4 seconds at 3 impulses per minute, calf inflate delay 2 second was used for 5 months for at least 2.5 hours daily, The claudication patients who had intermittent pneumatic compression had improved initial and absolute claudication distance on treadmill testing and improved ankle-brachial index measurements compared with those who did not. The authors concluded that intermit tent pneumatic compression was effective method for improving walking ability and pressure indices. [ABSTRACT FROM AUTHOR]
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- 2005
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183. Computerized Stereology and Microplanimetry on a Shoestring Budget
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Scott-Conner, Carol E.H., Conner, Harry F., Dawson, David L., and Clarke, Kevin M.
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Medical Imaging - Abstract
Shapes, lengths and areas are frequently studied, measured and recorded in anatomic morphometric studies. Specialized commercial planimetry and digitalizing systems, typically costing several thousand dollars, may not be readily accessible to the beginning investigator. We have developed a planimetry system using the KoalaPad touch tablet, an inexpensive device available for IBM-PC/XT or Apple-II computers. The system allows contours to be recorded and analyzed for a variety of routine purposes.
- Published
- 1985
184. Female-perpetrated sexual abuse: a review of victim and professional perspectives
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Clements, Hannah, Dawson, David L., das Nair, Roshan, Clements, Hannah, Dawson, David L., and das Nair, Roshan
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Professional attitudes towards female-perpetrated sexual abuse (FPSA) reportedly reflect the gender-role expectations found in broader society, which cast males almost exclusively as sexual aggressors or willing sexual recipients, females as sexually non-coercive or victims and male perpetrated sexual abuse as particularly significant or injurious. Such views, however, appear to stand in contrast to the perspectives of individuals who have experienced FPSA. This paper details a systematic review of peer-reviewed quantitative and qualitative literature examining these different (professional and victim) perspectives. Although the methodological shortcomings of primary papers limit the conclusions that can be drawn, the findings suggest that victim and professional perspectives of FPSA remain discrepant; professionals generally considered FPSA as less serious, less harmful and less deserving of investigation than male-perpetrated abuse; while victims of FPSA felt their experiences influenced significantly their psychological wellbeing and abilities to form and maintain interpersonal relationships. These findings are discussed in relation to professional practice and suggestions for future research.
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185. Female-perpetrated sexual abuse: a review of victim and professional perspectives
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Clements, Hannah, Dawson, David L., das Nair, Roshan, Clements, Hannah, Dawson, David L., and das Nair, Roshan
- Abstract
Professional attitudes towards female-perpetrated sexual abuse (FPSA) reportedly reflect the gender-role expectations found in broader society, which cast males almost exclusively as sexual aggressors or willing sexual recipients, females as sexually non-coercive or victims and male perpetrated sexual abuse as particularly significant or injurious. Such views, however, appear to stand in contrast to the perspectives of individuals who have experienced FPSA. This paper details a systematic review of peer-reviewed quantitative and qualitative literature examining these different (professional and victim) perspectives. Although the methodological shortcomings of primary papers limit the conclusions that can be drawn, the findings suggest that victim and professional perspectives of FPSA remain discrepant; professionals generally considered FPSA as less serious, less harmful and less deserving of investigation than male-perpetrated abuse; while victims of FPSA felt their experiences influenced significantly their psychological wellbeing and abilities to form and maintain interpersonal relationships. These findings are discussed in relation to professional practice and suggestions for future research.
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186. The implicit theories of male child sexual offenders residing in a high secure psychiatric hospital
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Mannix, Karyn, Dawson, David L., Beckley, Kerry, Mannix, Karyn, Dawson, David L., and Beckley, Kerry
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Although the vast majority of individuals with a mental disorder do not commit sexual offences, sexual offenders are a significant group within forensic psychiatric populations and command a high level of healthcare resources. Despite this, there is little published research focussing on the offence-specific cognitive styles (e.g. cognitive distortions and implicit theories) of these individuals, limiting understanding of their assessment and treatment needs. The current study aimed to establish whether evidence for the implicit theories identified by researchers of non-mentally disordered child sexual offenders would also be present amongst a population of high secure psychiatric male sexual offenders. Analysis of interviews with twelve such individuals indicated that the majority of the cognitive distortions articulated by these men could be categorized within existing implicit theory descriptions. The findings are discussed in relation to clinical practice and suggestions for future research with this specific population are proposed.
187. Perceptions of hematopoietic stem cell transplantation and coping predict emotional distress during the acute phase after transplantation
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Baliousis, Michael, Rennoldson, Michael, Dawson, David L., Mills, Jayne, Das Nair, R, Baliousis, Michael, Rennoldson, Michael, Dawson, David L., Mills, Jayne, and Das Nair, R
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PURPOSE/OBJECTIVES: To test whether a widely used model of adjustment to illness, the self-regulatory model, explains the patterns of distress during acute hematopoietic stem cell transplantation (HSCT). According to the model, perceptions of HSCT, coping, and coping appraisals are associated with distress. DESIGN: Longitudinal, correlational. SAMPLE: 45 patients receiving mostly autologous transplantations for a hematologic malignancy. METHODS: Patients were assessed at baseline, on transplantation day, and two and four weeks after transplantation using three questionnaires. MAIN RESEARCH VARIABLES: Psychological distress, including depression, anxiety, stress, and overall distress (DASS-21); use of different coping styles (Brief COPE); and perceptions of HSCT and coping appraisals (Brief IPQ). FINDINGS: As suggested by the self-regulatory model, greater distress was associated with negative perceptions of HSCT, controlling for the effects of confounding variables. Mixed support was found for the model's predictions about the impact of coping styles on distress. Use of active and avoidant coping styles was associated with more distress during the acute phase after HSCT. CONCLUSIONS: Negative perceptions of HSCT and coping contribute to psychological distress during the acute phase after HSCT and suggest the basis for intervention. IMPLICATIONS FOR NURSING: Eliciting and discussing patients' negative perceptions of HSCT beforehand and supporting helpful coping may be important ways to reduce distress during HSCT.
188. Cognitive-Behavioural Therapy
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Dawson, David L., Moghaddam, Nima G., Dawson, David L., and Moghaddam, Nima G.
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Cognitive-behavioural therapy (CBT) is a generic term, encompassing both: (1) approaches underpinned by an assumption that presenting emotional and behavioural difficulties are cognitively mediated or moderated; and (2) atheoretical bricolages of cognitive and behavioural techniques. This latter category may include effective therapeutic packages (perhaps acting through mechanisms articulated in the first category) but, when theory is tacit, it becomes harder to make analytical generalisations or to extrapolate principles that could guide idiographic formulation and intervention. In contrast, the first category of approaches posits that presenting difficulties may be formulated from an assessment of individual cognitive content (thought processes and underlying beliefs) and implies that we can bring about change in presenting difficulties through change in associated cognitions. Within this chapter, we formulate the case of ‘Molly’, using the theoretical model of CBT articulated by A. T. Beck, to understand the client’s presentation, current difficulties, and potential areas for intervention.
189. Implicit and explicit self-esteem discrepancies in people with psychogenic nonepileptic seizures
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Dimaro, Lian V., Roberts, Nicole A., Moghaddam, Nima G., Dawson, David L., Brown, Ian, Reuber, Markus, Dimaro, Lian V., Roberts, Nicole A., Moghaddam, Nima G., Dawson, David L., Brown, Ian, and Reuber, Markus
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Purpose: Self-esteem (SE), or one's sense of competence and worth, is reduced in many mental and physical disorders. Low SE is associated with perceived stigma and disability and poor treatment outcomes. The present study examined implicit and explicit SE (automatic and deliberate views about the self) in people with epilepsy and people with psychogenic nonepileptic seizures (PNESs). Discrepancies between implicit SE and explicit SE have been found to correlate with psychological distress in disorders often associated with PNESs but are relatively unexplored in PNESs. We hypothesized that, compared with epilepsy, PNESs would be associated with lower self-reported SE and greater discrepancies between implicit SE and explicit SE. Methods: Thirty adults with PNESs, 25 adults with epilepsy, and 31 controls without a history of seizures were asked to complete the Rosenberg Self-esteem Scale as a measure of explicit SE and an Implicit Relational Assessment Procedure as a measure of implicit SE. The State–Trait Anxiety Inventory and Patient Health Questionnaire—15 (a somatic symptom inventory) were also administered. Results: We found significant group differences in explicit (p b 0.001) but not implicit SE. Patients with PNESs reported lower SE than the other groups. No group differences were found in implicit SE. Implicit–explicit SE discrepancies were larger in the group with PNESs than in the other groups (p b 0.001). Higher frequency of PNESs (but not epileptic seizures) was associatedwith lower explicit SE (rs=−.83, p b 0.01) and greater SE discrepancies (i.e., lower explicit relative to implicit SE; rs = .65, p b 0.01). These relationships remained significant when controlling for anxiety and somatization. Conclusion: Patients with PNESs had lower explicit SE than those with epilepsy or healthy controls. In keeping with our expectations, there were greater discrepancies between implicit SE and explicit SE among patients with PNESs than in the other groups. Our resul
190. Parental bonding and eating disorders: a systematic review
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Tetley, Amanda, Moghaddam, Nima G., Dawson, David L., Rennoldson, Mike, Tetley, Amanda, Moghaddam, Nima G., Dawson, David L., and Rennoldson, Mike
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This article systematically reviewed studies of parental bonding in people with eating disorders. MEDLINE, PsychINFO, EMBASE and CINAHL were searched to identify studies that compared parental bonding in people diagnosed with an eating disorder relative to non-clinical controls. Twenty-four studies were identified. Women with eating disorders typically reported lower parental care and higher parental protection compared to non-clinical, but not psychiatric, controls. Interestingly, a modest number of studies found that these relationships were mediated by avoidant problem solving style and several schemas from the Young Schema Questionnaire (YSQ; Schmidt, Joiner, Young, & Telch, 1995). While there are methodological limitations associated with the reviewed studies, they do offer some support for the proposal that difficulties in parent-child relationships predispose women to eating disorders and other psychiatric diagnoses.
191. The implicit relational assessment procedure: emerging reliability and validity data
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Golijani-Moghaddam, Nima, Hart, Aidan, Dawson, David L., Golijani-Moghaddam, Nima, Hart, Aidan, and Dawson, David L.
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The Implicit Relational Assessment Procedure (IRAP) is a measure of ‘implicit cognition' developed on the basis of a contemporary behavioural analysis of language and cognition. The IRAP has now been applied to a range of foci over five years of published research. A frequently-cited caveat in publications to date is the need for further research to gauge the reliability and validity of the IRAP as an implicit measure. This review paper will provide a critical synthesis of available evidence for reliability and validity. The review applies a multifaceted test-theory approach to validity, and reliability is assessed through meta-analysis of published data. The discussion critically considers reviewed IRAP evidence with reference to the extant literature on alternative implicit measures, limitations of studies to date, and consideration of broader conceptual issues.
192. Offence paralleling behaviour and multiple sequential functional analysis
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Daffern, Michael, Jones, Lawrence, Shine, John, Dawson, David L., Gresswell, David M., Daffern, Michael, Jones, Lawrence, Shine, John, Dawson, David L., and Gresswell, David M.
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Offence paralleling behaviour and multiple sequential functional analysis
193. What characteristics do service users with intellectual disability value in direct support staff within residential forensic services?
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Clarkson, Rachael, Murphy, Glynis H, Coldwell, Jon B, Dawson, David L, Clarkson, Rachael, Murphy, Glynis H, Coldwell, Jon B, and Dawson, David L
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Background This study explores the perceptions of a group of adults with intellectual disability regarding direct support staff. Method Semi-structured interviews relating to experiences of direct support staff were developed from two focus groups. These interviews were conducted with 11 adults with intellectual disability residing within a forensic inpatient service. Results Interpretative Phenomenological Analysis (IPA) revealed two superordinate themes; namely, staff relationship factors and positive and negative attributes of staff. The participants valued relationships with staff based on qualities such as honesty, trust, and a caring, nurturing manner that enabled individuals to feel safe. Staff characteristics such as immaturity, inexperience, and a short temper appeared to lead to feelings of discontentment amongst the participants. Conclusions The implications of the findings are discussed in relation to clinical practice, staff recruitment, and training.
194. Mental disorder and adverse life events in a forensic intellectual disability service
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Gore, Nick J., Dawson, David L., Gore, Nick J., and Dawson, David L.
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The study investigated the frequency of adverse life events and prevalence of MD recorded for clients with intellectual disabilities (ID) in a medium secure unit, using data from an electronic patient record (EPR) system. Prevalence of MD was calculated on the basis of ICD-10 diagnoses and a 38-item checklist was developed to investigate dverse/traumatic life events for sub-samples with and without MD. High rates of MD were reported overall,particularly of schizotypal and delusional disorders and disorders of personality. Adverse life events including abuse, bereavement and relationship difficulties had been documented by clinicians. The overall number of recorded events was significantly higher for clients diagnosed with a MD. Associations between MD and life events have been reported previously, but not in a forensic ID population. The study contributes to a growing body of literature highlighting the relationship between life events and mental health in people with ID, offering further information for service development and clinical practice.
195. Assessing the implicit beliefs of sexual offenders using the Implicit Relational Assessment Procedure: a first study
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Dawson, David L., Barnes-Holmes, Dermot, Gresswell, David M., Hart, Aidan J., Gore, Nick J., Dawson, David L., Barnes-Holmes, Dermot, Gresswell, David M., Hart, Aidan J., and Gore, Nick J.
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Researchers have proposed that the cognitive distortions of sexual offenders are underpinned by a number of implicit cognitive processes termed implicit theories. Until recently, however, the implicit theory hypothesis has received little empirical support due to broader limitations with standard forensic assessment procedures. The current research aimed to determine whether a new assessment methodology, the Implicit Relational Assessment Procedure (IRAP), could provide further evidence for Ward and Keenan’s (1999) children as sexual beings implicit theory. The results indicated that the IRAP was significantly more effective at identifying core implicit differences between sexual offenders against children and nonoffenders than a cognitive distortion questionnaire. Furthermore, although both groups demonstrated an overall response bias towards adults as sexual and children as nonsexual, this bias was significantly impaired in the sexual offender group. The findings are discussed in relation to previous implicit theory research and recommendations for the development of implicit methodologies are made.
196. Clinical Behaviour Analysis
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Dawson, David L., Moghaddam, Nima G., Gresswell, David M., St Ledger, Ray, Dawson, David L., Moghaddam, Nima G., Gresswell, David M., and St Ledger, Ray
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At its core, Clinical Behaviour Analysis (CBA) is the application of empirically established behavioural learning principles to the clinical domain, providing a framework for the systematic analysis of a person’s historical and current contexts, in terms of the personal learning that has occurred through interaction with those contexts, and using this information to understand the function and maintenance of an individual’s clinically-relevant behaviour. Unlike other established approaches to formulation and therapy, CBA is often misunderstood by individuals who are unfamiliar, or only partially familiar, with the central tenets of the approach. Common charges levied against CBA include: the apparent dismissal of thoughts, feelings and emotions as unobservable and therefore unimportant to the clinician or analyst; the use of aversive techniques and punishment to change behaviour; and the reduction of the complexity of individual experience into simplistic behavioural units. While these criticisms may be valid for some forms of mechanistic behaviourism or misinformed individual therapists, they do not apply to the radical behaviourism of B F Skinner – the behavioural philosophy that underpins our approach. Within this chapter, we formulate the case of ‘Molly’, using the principles of CBA to understand her presentation, current difficulties, and potential areas for intervention.
197. Formulation in action: an introduction
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Dawson, David L., Moghaddam, Nima G., Dawson, David L., and Moghaddam, Nima G.
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Every individual experiences a complex array of events, situations, and circumstances within their lifetime that influence their psychological development and sense of personhood. Previous relationships and attachments, social roles and expectations, formative experiences and contexts, education, gender, culture, and countless other factors influence how we perceive ourselves, the world, and those around us. The nexus between our personal characteristics and experiences is where our individuality and relationality lie, and – from a psychological perspective – our preferences, biases, behaviours, peccadillos, hopes, and fears are forged within this complex milieu. Within this this chapter, we introduce psychological formulation, and its role in aiding psychological practitioners to manage and understand this complexity. We also provide an overview of the structure of the current volume, and offer a number of criteria for critically evaluating the psychological formulations presented therein.
198. Female-perpetrated sexual abuse: a review of victim and professional perspectives
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Clements, Hannah, Dawson, David L., das Nair, Roshan, Clements, Hannah, Dawson, David L., and das Nair, Roshan
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Professional attitudes towards female-perpetrated sexual abuse (FPSA) reportedly reflect the gender-role expectations found in broader society, which cast males almost exclusively as sexual aggressors or willing sexual recipients, females as sexually non-coercive or victims and male perpetrated sexual abuse as particularly significant or injurious. Such views, however, appear to stand in contrast to the perspectives of individuals who have experienced FPSA. This paper details a systematic review of peer-reviewed quantitative and qualitative literature examining these different (professional and victim) perspectives. Although the methodological shortcomings of primary papers limit the conclusions that can be drawn, the findings suggest that victim and professional perspectives of FPSA remain discrepant; professionals generally considered FPSA as less serious, less harmful and less deserving of investigation than male-perpetrated abuse; while victims of FPSA felt their experiences influenced significantly their psychological wellbeing and abilities to form and maintain interpersonal relationships. These findings are discussed in relation to professional practice and suggestions for future research.
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199. Female-perpetrated sexual abuse: a review of victim and professional perspectives
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Clements, Hannah, Dawson, David L., das Nair, Roshan, Clements, Hannah, Dawson, David L., and das Nair, Roshan
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Professional attitudes towards female-perpetrated sexual abuse (FPSA) reportedly reflect the gender-role expectations found in broader society, which cast males almost exclusively as sexual aggressors or willing sexual recipients, females as sexually non-coercive or victims and male perpetrated sexual abuse as particularly significant or injurious. Such views, however, appear to stand in contrast to the perspectives of individuals who have experienced FPSA. This paper details a systematic review of peer-reviewed quantitative and qualitative literature examining these different (professional and victim) perspectives. Although the methodological shortcomings of primary papers limit the conclusions that can be drawn, the findings suggest that victim and professional perspectives of FPSA remain discrepant; professionals generally considered FPSA as less serious, less harmful and less deserving of investigation than male-perpetrated abuse; while victims of FPSA felt their experiences influenced significantly their psychological wellbeing and abilities to form and maintain interpersonal relationships. These findings are discussed in relation to professional practice and suggestions for future research.
- Full Text
- View/download PDF
200. Female-perpetrated sexual abuse: a review of victim and professional perspectives
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Clements, Hannah, Dawson, David L., das Nair, Roshan, Clements, Hannah, Dawson, David L., and das Nair, Roshan
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Professional attitudes towards female-perpetrated sexual abuse (FPSA) reportedly reflect the gender-role expectations found in broader society, which cast males almost exclusively as sexual aggressors or willing sexual recipients, females as sexually non-coercive or victims and male perpetrated sexual abuse as particularly significant or injurious. Such views, however, appear to stand in contrast to the perspectives of individuals who have experienced FPSA. This paper details a systematic review of peer-reviewed quantitative and qualitative literature examining these different (professional and victim) perspectives. Although the methodological shortcomings of primary papers limit the conclusions that can be drawn, the findings suggest that victim and professional perspectives of FPSA remain discrepant; professionals generally considered FPSA as less serious, less harmful and less deserving of investigation than male-perpetrated abuse; while victims of FPSA felt their experiences influenced significantly their psychological wellbeing and abilities to form and maintain interpersonal relationships. These findings are discussed in relation to professional practice and suggestions for future research.
- Full Text
- View/download PDF
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