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Chipped stone tools termed perforators and gravers are characterized by projections. Although the implied function of these tool types differs, there are no guidelines for classifying perforators and gravers based on their morphology. Consequently, researchers classify these tools differently, which precludes meaningful comparisons of the frequencies of these types between assemblages. A use-wear study confirmed the hypothesis that specimens with a thin projection and a sharp distal angle often had perforation use wear. Specimens with graver use wear were characterized by a range of projection perimeters and distal angles. We recommend that specimens with a projection perimeter of 20 mm or less and a distal angle of 40 degrees or less be classified as perforators and those with greater dimensions as gravers. This will achieve a consistent classification system for perforators and gravers, although it must be recognized that these type names may not be indicative of the function of individual specimens.
Falls is the leading cause of injury, and injury-related cognitive decline and death for older adults. Weight loss and malnutrition contribute to the risk of falls through increased frailty, visual and cognitive impairment, and predicts both the severity and recovery time of falls. Psychological and social factors such as isolation, loneliness, cognitive impairment, anxiety and depression are significantly associated with falls and weight loss for older adults. Reminiscence therapy is a psychological intervention that can improve anxiety, mood disorders, cognition and isolation; however, it is not yet known the impact that reminiscence therapy has on the incidence of falls and weight loss. This abstract will present the existing research on reminiscence therapy for the prevention of falls and weight loss, describe a group reminiscence therapy protocol to target these risk factors, and outline preliminary findings from a small pilot trial group therapy program conducted in February, 2023.
Results:
Data on pre and post incidence of falls and weight loss collected from eHealth records for: 1) 3 months prior to the group, and 2) the 9-week duration of the group will be discussed. Group participants will complete a pre and post Depression Anxiety Stress Scale (DASS21) and provide feedback on the therapy protocol.
Conclusion:
This presentation will discuss the suitability of a group reminiscence therapy protocol to reduce psychological and social risk factors associated with falls and weight loss for older adults in residential aged care.
Historically, older adults in residential aged care facilities (RACF) in Australia had no access to government funded psychology services despite high rates of anxiety and depression. Change Futures is a registered charity that provides funded psychology to more than 220 RACFs in south-east Queensland and northern New South Wales, Australia, and since 2015 has been providing free psychology services to older adults living in aged care, using a predominately provisional psychologist workforce. This presentation will discuss the model of service that is provided, and the findings of a recent outcomes report.
Method:
Data was collected via clinician entered eHealth records in the 2021/2022 financial year from 01/07/2021 to 30/06/2022. Outcome measures were analysed using six repeated measure t-tests to compare clinical change from first and last assessments.
Results:
A total of 2865 residents were seen in 17,754 individual sessions and 298 group sessions. Staff education was provided in 94 sessions with 838 participants, who worked in RACFs. The most common presenting issue was difficulties with adjustment (70%), comorbid anxiety and depression (28%), depression (27%), loneliness (18%), and anxiety (17%). Outcomes of the psychology program showed statistically significant improvements on all measures, including the Kessler 5 psychological distress scale, Geriatric anxiety scale, Patient health Questionaire-9, De Jong Gierveld Loneliness Scale, and Brief Adjustment Scale.
Conclusion:
The described service model resulted in significant improvements to the psychological wellbeing of older adults, and represents an effective and sustainable training approach for provisional psychologists.
Reminiscence therapy is the examination of past memories to improve current mood and psychological functioning and is an evidence-based treatment for symptoms of late life psychological distress. Music is sometimes used in such therapy to prompt or enhance the recollection of memories; however, there is limited empirical research on the use and value of using music in reminiscence therapy. This presentation will discuss the findings of two studies exploring the feasibility and use of verbal reminiscence therapy (VRT) and music-assisted reminiscence therapy (MRT) from the perspectives of the older adult and the staff who care for them.
Method:
Study one surveyed 110 Australian workers in aged care to explore the extent to which VRT and MRT were used, how such interventions were delivered and viewed, and the benefits. Study two randomly assigned 8 older adults experiencing psychological distress to a single session of VRT or MRT. Pre and post measures of affect, memory experience, and a brief satisfaction interview were collected, along with measures of treatment fidelity.
Results:
For staff, simple reminiscence was the most frequently used approach across both VRT and MRT. Staff reported that both VRT and MRT are viewed as successful and regularly used interventions, that occur in spontaneous and creative ways in response to older clients’ needs. Staff reported outcomes such as enhanced social connections, improved affect and mood, and better care practices. Older adults reported that that VRT and MRT were equally acceptable and well tolerated. A pre-post pattern of improvement was observed for affect following VRT, and particularly MRT, suggesting both as promising interventions. MRT resulted in higher scores on memory experience characteristics such as vividness, coherence, and accessibility. The high treatment fidelity achieved in this study indicates that the interventions can be successfully implemented with this population.
Conclusion:
VRT and particularly MRT were viewed as successful, feasibility and acceptable interventions by older adults experiencing psychological distress, and direct care staff in Australia. These preliminary findings indicated MRT may provide therapeutic changes above and beyond VRT for older adults, and therefore large-scale clinical trials are warranted.
Reminiscence therapy is an evidence-based treatment for late life depressive symptoms, and has been associated with improvements in cognitive function, loneliness, happiness, and wellbeing for older people. While music is often involved in reminiscence therapy, little is known about how music is used or works in this context. Specifically, we do not know what purpose music serves, or how it works to enhance the experience when combined with reminiscence therapy. This presentation will provide an overview of two studies exploring how music enhances reminiscence therapy.
Method:
A narrative literature review was conducted with a structured search strategy to identify all relevant literature. Furthermore, a single-case repeated measures experimental EEG study with 4 older adults experiencing psychological distress was conducted. Participants were randomly assigned to a single session of either verbal reminiscence therapy or music-assisted reminiscence therapy. EEG recordings of resting states (e.g., eyes closed) were taken before and after the session, together with different epochs recorded during the session (e.g., during the start of reminiscence, the problem solving success, and music played). Analysis involved calculating the standardised LORETA (sLORETA) calculations to map regions and sources of EEG activity during these epochs.
Results:
The SEED model proposed that music enhances reminiscence through: Summoning autobiographical memories, eliciting physiological responses, evoking emotional reactions and pleasure, and defining and describing self-identity and social connectedness. Findings of the EEG study suggested that for the individual participants, both verbal and music-assisted reminiscence therapy resulted in widespread and lateralised activation. These activations were stronger for music- assisted reminiscence than for verbal reminiscence, particularly in the central and frontal areas. Only participants who received music-assisted reminiscence demonstrated activation in areas associated with emotional regulation and meditation, providing preliminary evidence for the SEED model.
Conclusion:
The two presented studies contribute to our understanding of the potential mechanisms for change when applying reminiscence and music-assisted reminiscence therapy interventions to improve wellbeing for older people.
Drills and projectile points from a site often share a similar shaped base, and it is typically assumed that these drills are reworked hafted points. Measurements of triangular-shaped drills and triangular arrow points from an Iroquoian site indicate that, on average, these drills had narrower bases and were thicker than points. Additionally, most preserved point foreshafts from the western United States are too short if used as a simple drill shaft, and most dart and arrow shafts are too long to serve as convenient drill shafts if used with a strap or bow drill. These data call into question the assumption that drills were reworked hafted points at Iroquoian and possibly other sites.
The sciences have been perennially interested in understanding similarities and differences between the sexes. Among humans, both males and females seek to secure serially monogamous partnerships with kind and intelligent mates similar to themselves. However, the sexes differ in the relative value placed on resources and physical attractiveness, their willingness to engage in short-term liaisons, and jealousy in response to emotional and sexual infidelities. Consideration of cultural factors, modern relationship innovations, and diversity in sexual orientation and gender identity provides further complexity to our understanding of similarities and differences. Recommendations are made for future research in these areas, and the societal implications of evolutionary work on the sexes is discussed.
The chapter explores translation in a foreign-language course at a South African university and argues that the explicit practice of translation and concurrent reflective writing foregrounds the negotiation of meaning between languages and cultures. The study proposes fair assessment practices for a multilingual, multicultural context, as reflective writing nurtures student diversity and individualised learning. In translation courses, students and lecturers must ideally share a home language and second/ foreign language, in this case German and English, but often do not. Subsequently, clumsy English translations might not accurately reflect students’ understanding of the German source text, nor their contemplation of equivalent language transfer. The reflective essays, however, revealed evidence of deep engagement with language in context and re-evaluation of linguistic and cultural assumptions. The reflections also created a diagnostic space where comprehension errors or misconceptions could be addressed on an individual basis. The study finds that teaching translation in foreign language courses stimulates critical reflection on language, provided that assessment methods match such learning outcomes.
Cognitive models of post-traumatic psychological adjustment have implicated both self-concept and self-appraisals in post-traumatic stress disorder (PTSD). Two studies investigated the relationship between self-concept and trauma-related self-appraisals, and whether culture influenced this relationship.
Method:
In Study 1, a student sample (Asian n = 41, British n = 34) who self-identified as having been through a trauma or extremely stressful event completed measures of self-concept, trauma-related self-appraisals and trauma-related distress. Study 2 extended this by asking Asian (n = 47) and British (n = 48) trauma survivors with and without PTSD to complete the same self measures as those administered in Study 1.
Results:
Study 1 found that overall for the British group, disruptions in self-concept (i.e. self-discrepancies and trauma-themed self-concept) correlated significantly with negative self, world and self-blame appraisals and depression. However, the same was not found in the Asian group. Study 2 found that pan-culturally those with PTSD had greater self-discrepancies and trauma-defined self-concept than those without PTSD. Additionally, pan-culturally, trauma-defined self-concept correlated significantly with negative self appraisals and depression; ideal self-discrepancies correlated significantly with negative self-appraisals across cultures and depression for the British group; while ought self-discrepancies correlated significantly with negative world appraisals for the Asian group and negative self and self-blame appraisals for the British. Lastly, negative self, world and self-blame appraisals correlated with symptoms of depression.
Conclusions:
Taken together, the findings relay the important associations between appraisals, self-concept and post-traumatic psychological adjustment.
Treatment with low-dose interferon alpha (IFN-α) is often associated with neuropsychiatric side effects. In addition to depression and anxiety, IFN-α associated cognitive impairment significantly affects patient’s mental health and quality of life.
Aims of the study.
To measure possible effects of low-dose IFN-α on cognitive functioning and its relationship to the development of depression and anxiety.
Method.
We prospectively followed 38 patients with a chronic hepatitis B or C by neuropsychological tests and psychiatric self-rating scales during 12 weeks of low-dose treatment with IFN-α.
Results.
Before IFN-α treatment, neuropsychological tests as well as self-ratings in the Beck’s Depression Inventory (BDI), the Hospital Anxiety and Depression Scale (HADS) and the Self-Report Symptom Inventory 90 Items-Revised (SCL-90-R) were within the normal range. Following 12 weeks of treatment with IFN-α resulted in a slight, but significant increase in depression scores. Neuropsychological assessment after 12 weeks of IFN-α treatment showed a significant decrease of the immediate recall in the Auditory-Verbal Learning Test (AVLT) and a significant reduction of words recited in the Controlled Oral Word Association Test (COWA). Cognitive impairment did not significantly correlate with depressive symptoms or anxiety.
Conclusion.
Our results indicate that even low-dose IFN-α induces cognitive impairment independent from depressive symptoms, which might be related to functional disturbances in the prefrontal cortex and the hippocampus. We suggest close monitoring of cognitive function during IFN-α treatment of chronic hepatitis.
On 16 June 2015, more than a year after the signing of the Comprehensive Agreement on the Bangsamoro (CAB), with seventeen years of ceasefire and several decades of on-and-off peace talks, the Moro Islamic Liberation Front (MILF) dared to take a historic step and decommissioned 145 combatants and 75 firearms. This step in the peace process was not only a clear commitment to a political solution by the government to the “Bangsamoro question” but also part of the elaborate pattern of agreements reached between both sides in the last years. To achieve normalization—a return to a peaceful and stable life for communities—is the ultimate goal of the peace agreement.
But Mindanao's woes and worries cannot be isolated from the conflict between the Government of the Philippines (GPH) and the MILF—although many issues are strongly intertwined with this major conflict trajectory. The situation on the ground is often very complicated and different layers of armed violence, armed groups and governance systems will challenge the implementation period of the peace process. Apart from journalistic pieces and a limited number of essays, little has been written about this normalization period initiated after the CAB—or scholarly reviews or assessments of demobilization and disarmament published. The lack of published material is not surprising, considering the initiated formal process of normalization is only recent.
This chapter will look back at the foundations of normalization—in particular security aspects—as well as examine future prospects and trajectories. This is part of the broader scholarship on the Mindanao conflict and also an initial study on demobilization of combatants in a post-conflict situation. Existing literature on Disarmament, Demobilization and Reintegration (DDR) and Mindanao, official documents and peace agreements between GPH and MILF, media articles, press statements and fieldwork—community immersion, interviews, participant observation— undertaken in the southern Philippines between 2012 and 2015, are discussed. The first section outlines the history of conflicts in the southern Philippines, including some notions on the particularities and characteristics of these conflicts. DDR is discussed before the third section outlines the Moro National Liberation Front (MNLF) following the 1996 Final Peace Agreement (FPA)–DDR efforts with other groups in the Philippines.
The principles of the Armed Forces Covenant state that Armed Forces Veterans should be at no disadvantage resulting from their service compared with a general adult population. However, despite being at increased risk of experiencing common mental health difficulties, evidence indicates that 82% of Armed Forces Veterans receive no treatment, compared with 63% of the general adult population.
Aim:
To gain a better appreciation of factors that inform the type of adaptations to cognitive behavioural therapy (CBT) interventions for depression and mainstream service promotion materials to enhance acceptability for Armed Forces Veterans.
Method:
This is a qualitative study employing a focus group of 12 participants to examine the main impacts of depression on Armed Forces Veterans alongside attitudes towards terminology and visual imagery. Thematic analysis was used to identify themes and sub-themes with rigour established through two researchers independently developing thematic maps to inform a final agreed thematic map.
Results:
A behavioural activation intervention supporting re-engagement with activities to overcome depression had good levels of acceptability when adapted to reflect an Armed Forces culture. Preferences regarding terminology commonly used within CBT adapted for Armed Forces Veterans were identified. Concerns were expressed with respect to using imagery that emphasized physical rather than mental health difficulties.
Conclusions:
There is the need to consider the Armed Forces community as a specific institutional culture when developing CBT approaches with potential to enhance engagement, completion and recovery rates. Results have potential to inform the practice of CBT with Armed Forces Veterans and future research.
Background: Leptomeningeal dissemination of hemangioblastomas (HB), whether sporadic or associated with Von Hippel Lindau (VHL), are extremely rare. Very scanty literature is available. Methods: A 36 year old female with VHL and stable pancreatic, adrenal and renal lesions was operated upon 4 years ago for a large symptomatic cervicomedullary cystic and solid tumor. 2 years after surgery the tumour recurred and further removal was unsuccessful due to medullary adhesions. Radiation was given to the posterior fossa area and to several small nodules over the cauda equina resulting in severe pain. Serial follow up imaging revealed diffuse leptomeningeal dissemination increasing in size of the suprasellar region, ambient cistern and Sylvian fissures. Clinically, she has been stable with small dose of steroids and VP shunt insertion for papilledema. Results: Review of the literature consists of 2 series of 7 and 21 patients each with leptomeningeal dissemination involving sporadic HB and VHL associated HB. Leptomeningeal dissemination is estimated at about 4.3%. It is postulated that the tumour starts in the Pia and spreads in an extra medullary fashion throughout the subarachnoid spaces. Conclusions: Long term recurrence has been noted raising the question of aggressive treatment with some drug therapy related to angiogenesis is postulated.
Background: Supratentorial ventricular hemangioblastoma (HB) associated with Von Hippel Lindau (VHL) are extremely rare. Due to their vascularity and location, their management can be difficult. Methods: A 35 year old female with VHL, has been followed for 25 years with multiple intracranial and spinal tumours. Surgical removal was carried out on one large cystic and solid posterior fossa lesion. In addition, she underwent adrenalectomy for pheochromocytoma. There were no pancreatic or renal lesions. On serial follow up for years, a left frontal ventricular lesion showed increasing size with clinical signs of increased ICP and marked hydrocephalus, requiring shunting procedures, which were carried out 11 years ago. She has been clinically stable since. Results: Hemangioblastomas of the CNS are rare and account for 2% of primary CNS tumours. Supratentorial location is estimated at 4% for sporadic and 13% for HB associated with VHL. The lateral ventricular location is extremely rare. Review of the literature revealed a total of 9 cases of supratentorial ventricular location. The majority of the lesions are associated with VHL and they are solid and vascular lesions. In our cases there was a cystic component. Conclusions: If removal is contemplated, angiography with possible preoperative embolization may be required.
UK veterans suffering from a psychological or psychiatric illness as a consequence of service in the Second World War were entitled to a war pension. Their case files, which include regular medical assessments, are a valuable resource to investigate the nature, distribution and duration of symptoms.
Methods
A standardised form was used to collect data from pension records of a random sample of 500 UK army veterans from the first presentation in the 1940s until 1980. Data were also gathered from 50 civilians and 54 emergency responders with a pension for post-traumatic illness following air-raids.
Results
The 10 most common symptoms reported by veterans were anxiety, depression, sleep problems, headache, irritability/anger, tremor/shaking, difficulty completing tasks, poor concentration, repeated fears and avoidance of social contact. Nine of the 10 were widely distributed across the veteran population when symptoms were ranked by the number of subjects who reported them. Nine symptoms persisted significantly longer in the veteran sample than in emergency responders. These included seven of the most common symptoms, together with two others: muscle pain and restlessness. The persistence of these symptoms in the veteran group suggests a post-traumatic illness linked to lengthy overseas service in combat units.
Conclusions
The nature and duration of symptoms exhibited by veterans may be associated with their experience of heightened risks. Exposure to severe or prolonged trauma seems to be associated with chronic multi-symptom illness, symptoms of post-traumatic stress and somatic expressions of pain that may delay or complicate the recovery process.
Clustering algorithms constitute a multi-disciplinary analytical tool commonly used to summarise large data sets. Astronomical classifications are based on similarity, where celestial objects are assigned to a specific class according to specific physical features. The aim of this project is to obtain relevant information from high-dimensional data (at least three input variables in a data-frame) derived from stellar light-curves using a number of clustering algorithms such as K-means and Expectation Maximisation. In addition to identifying the best performing algorithm, we also identify a subset of features that best define stellar groups. Three methodologies are applied to a sample of Kepler time series in the temperature range 6500–19,000 K. In that spectral range, at least four classes of variable stars are expected to be found: δ Scuti, γ Doradus, Slowly Pulsating B (SPB), and (the still equivocal) Maia stars.
On-farm instruments for assessing colostrum quality are needed in order to ensure that the calf is supplied with enough IgG to avoid failure of passive transfer. The aim of this study was to evaluate methods for estimating the IgG concentration in cows' colostrum. This research included 126 colostrum samples from 21 Danish farms with different breeds, ensuring a broad variation pattern in IgG, total protein and fat concentration. Approximately one third of the samples did not fulfil the recommendation of >50 g IgG/l colostrum, and the IgG concentration decreased with time from calving to milking. The ratio of IgG to total protein varied from 6 to 61%, however IgG and total protein were correlated with r2 = 0·70. The variation in fat was independent of variations in protein and IgG. The IgG concentration was measured by ELISA and compared to fast measurements by specific gravity by colostrometer, Brix by refractometer and prediction from infrared spectroscopy. The three fast methods were all correlated to the total protein concentration of colostrum; however specific gravity was also influenced by the fat concentration. Furthermore, specific gravity generally overestimated the IgG concentration, and the cut-off level should be raised to 1050 in order to ensure adequate IgG in colostrum. None of the methods estimated IgG concentration better than the correlation of total protein and IgG, meaning that they all depended on the indirect correlation between total protein and IgG. The results suggest that using a refractometer for quality control of colostrum is an easy and feasible method, and a cut-off level of Brix 22 seems sufficient to assure adequate IgG concentration in colostrum fed to the calf.
This paper compares unnotched triangular arrow point refits (conjoined fragments) with whole points from the Eaton site in New York. The differences between the two samples are significant, suggesting that point typologies based on whole points may be misleading. Refits tended to have greater length to width ratios and lower thickness to length ratios, rendering them less durable. While lack of durability is generally considered to be a negative characteristic of stone points, fragmentation of a projectile in an enemy or hunting prey creates a large internal wound cavity, which is desirable. Also desirable is a point base that makes a cut wide enough to prevent drag on the arrow shaft, but narrow enough to have a good chance of passing through the ribs of the target.