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1.
Ecol Evol ; 14(2): e10910, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38304266

ABSTRACT

Asynchrony in population abundance can buffer the effects of environmental change leading to greater community and ecosystem stability. Both environmental (abiotic) drivers and species functional (biotic) traits can influence population dynamics leading to asynchrony. However, empirical evidence linking dissimilarity in species traits to abundance asynchrony is limited, especially for understudied taxa such as insects. To fill this knowledge gap, we explored the relationship between pairwise species trait dissimilarity and asynchrony in interannual abundance change between pairs of species for 422 moth, butterfly, and bumblebee species in Great Britain. We also explored patterns differentiating traits that we assumed to capture 'sensitivity to environmental variables' (such as body mass), and traits that may reflect 'diversity in exposure' to environmental conditions and lead to niche partitioning (for example, habitat uses, and intra-annual emergence periods). As expected, species trait dissimilarity calculated overall and for many individual traits representing response and exposure was positively correlated with asynchrony in all three insect groups. We found that 'exposure' traits, especially those relating to the phenology of species, had the strongest relationship with abundance asynchrony from all tested traits. Positive relationships were not simply due to shared evolutionary history leading to similar life-history strategies: detected effects remained significant for most traits after accounting for phylogenetic relationships within models. Our results provide empirical support that dissimilarity in traits linked to species exposure and sensitivity to the environment could be important for temporal dissimilarity in insect abundance. Hence, we suggest that general trait diversity, but especially diversity in 'exposure' traits, could play a significant role in the resilience of insect communities to short-term environmental perturbations through driving asynchrony between species abundances.

2.
Glob Chang Biol ; 29(5): 1282-1295, 2023 03.
Article in English | MEDLINE | ID: mdl-36462155

ABSTRACT

There is mounting evidence that terrestrial arthropods are declining rapidly in many areas of the world. It is unclear whether freshwater invertebrates, which are key providers of ecosystem services, are also declining. We addressed this question by analysing a long-term dataset of macroinvertebrate abundance collected from 2002 to 2019 across 5009 sampling sites in English rivers. Patterns varied markedly across taxonomic groups. Within trophic groups we detected increases in the abundance of carnivores by 19% and herbivores by 14.8%, while we estimated decomposers have declined by 21.7% in abundance since 2002. We also found heterogeneity in trends across rivers belonging to different typologies based on geological dominance and catchment altitude, with organic lowland rivers having generally higher rates of increase in abundance across taxa and trophic groups, with siliceous lowland rivers having the most declines. Our results reveal a complex picture of change in freshwater macroinvertebrate abundance between taxonomic groups, trophic levels and river typologies. Our analysis helps with identifying priority regions for action on potential environmental stressors where we discover macroinvertebrate abundance declines.


Subject(s)
Ecosystem , Rivers , Animals , Biodiversity , Environmental Monitoring/methods , Invertebrates
3.
Space Sci Rev ; 217(7): 77, 2021.
Article in English | MEDLINE | ID: mdl-34565915

ABSTRACT

The Emirates Mars Mission Emirates Mars Infrared Spectrometer (EMIRS) will provide remote measurements of the martian surface and lower atmosphere in order to better characterize the geographic and diurnal variability of key constituents (water ice, water vapor, and dust) along with temperature profiles on sub-seasonal timescales. EMIRS is a FTIR spectrometer covering the range from 6.0-100+ µm (1666-100 cm-1) with a spectral sampling as high as 5 cm-1 and a 5.4-mrad IFOV and a 32.5×32.5 mrad FOV. The EMIRS optical path includes a flat 45° pointing mirror to enable one degree of freedom and has a +/- 60° clear aperture around the nadir position which is fed to a 17.78-cm diameter Cassegrain telescope. The collected light is then fed to a flat-plate based Michelson moving mirror mounted on a dual linear voice-coil motor assembly. An array of deuterated L-alanine doped triglycine sulfate (DLaTGS) pyroelectric detectors are used to sample the interferogram every 2 or 4 seconds (depending on the spectral sampling selected). A single 0.846 µm laser diode is used in a metrology interferometer to provide interferometer positional control, sampled at 40 kHz (controlled at 5 kHz) and infrared signal sampled at 625 Hz. The EMIRS beamsplitter is a 60-mm diameter, 1-mm thick 1-arcsecond wedged chemical vapor deposited diamond with an antireflection microstructure to minimize first surface reflection. EMIRS relies on an instrumented internal v-groove blackbody target for a full-aperture radiometric calibration. The radiometric precision of a single spectrum (in 5 cm-1 mode) is <3.0×10-8 W cm-2 sr-1/cm-1 between 300 and 1350 cm-1 over instrument operational temperatures (<∼0.5 K NE Δ T @ 250 K). The absolute integrated radiance error is < 2% for scene temperatures ranging from 200-340 K. The overall EMIRS envelope size is 52.9×37.5×34.6 cm and the mass is 14.72 kg including the interface adapter plate. The average operational power consumption is 22.2 W, and the standby power consumption is 18.6 W with a 5.7 W thermostatically limited, always-on operational heater. EMIRS was developed by Arizona State University and Northern Arizona University in collaboration with the Mohammed bin Rashid Space Centre with Arizona Space Technologies developing the electronics. EMIRS was integrated, tested and radiometrically calibrated at Arizona State University, Tempe, AZ.

4.
Sci Rep ; 10(1): 6146, 2020 04 09.
Article in English | MEDLINE | ID: mdl-32273555

ABSTRACT

Termites are widely used as a food resource, particularly in Africa and Asia. Markets for insects as food are also expanding worldwide. To inform the development of insect-based foods, we analysed selected minerals (Fe-Mn-Zn-Cu-Mg) in wild-harvested and commercially available termites. Mineral values were compared to selected commercially available insects. Alate termites, of the genera Macrotermes and Odontotermes, showed remarkably high manganese (Mn) content (292-515 mg/100 gdw), roughly 50-100 times the concentrations detected in other insects. Other mineral elements occur at moderate concentrations in all insects examined. On further examination, the Mn is located primarily in the abdomens of the Macrotermes subhyalinus; with scanning electron microscopy revealing small spherical structures highly enriched for Mn. We identify the fungus comb, of Macrotermes subhyanus, as a potential biological source of the high Mn concentrations. Consuming even small quantities of termite alates could exceed current upper recommended intakes for Mn in both adults and children. Given the widespread use of termites as food, a better understanding the sources, distribution and bio-availability of these high Mn concentrations in termite alates is needed.


Subject(s)
Edible Insects/chemistry , Isoptera/chemistry , Manganese/analysis , Animals , Isoptera/ultrastructure , Microscopy, Electron, Scanning , Minerals/analysis
5.
Article in English | MEDLINE | ID: mdl-30563256

ABSTRACT

The prevalence of people seeking care for Borderline Personality Disorder (BPD) in primary care is four to five times higher than in the general population. Therefore, general practitioners (GPs) are important sources of assessment, diagnosis, treatment, and care for these patients, as well as important providers of early intervention and long-term management for mental health and associated comorbidities. A thematic analysis of two focus groups with 12 GPs in South Australia (in discussion with 10 academic, clinical, and lived experience stakeholders) highlighted many challenges faced by GPs providing care to patients with BPD. Major themes were: (1) Challenges Surrounding Diagnosis of BPD; (2) Comorbidities and Clinical Complexity; (3) Difficulties with Patient Behaviour and the GP⁻Patient Relationship; and (4) Finding and Navigating Systems for Support. Health service pathways for this high-risk/high-need patient group are dependent on the quality of care that GPs provide, which is dependent on GPs' capacity to identify and understand BPD. GPs also need to be supported sufficiently in order to develop the skills that are necessary to provide effective care for BPD patients. Systemic barriers and healthcare policy, to the extent that they dictate the organisation of primary care, are prominent structural factors obstructing GPs' attempts to address multiple comorbidities for patients with BPD. Several strategies are suggested to support GPs supporting patients with BPD.


Subject(s)
Attitude of Health Personnel , Borderline Personality Disorder/diagnosis , Borderline Personality Disorder/therapy , General Practitioners/psychology , Primary Health Care/methods , Adult , Australia , Female , Focus Groups , Humans , Male , Middle Aged , Qualitative Research , South Australia
6.
Psychol Psychother ; 91(3): 363-379, 2018 09.
Article in English | MEDLINE | ID: mdl-29271069

ABSTRACT

OBJECTIVES: Current research has implicated a role for cognitive and emotional processes in the pathways to becoming homeless. Evidence implicates three risk factors, which are often associated with an increased incidence of homelessness: paranoid thinking, emotion regulation, and engaging in maladaptive behaviours. Maladaptive behaviours include deliberate self-harm, substance misuse, and high-risk sexual practices. Currently, no studies have investigated the specific psychological mechanisms, such as difficulty regulating emotions, which underpin the association between paranoia and maladaptive behaviours. DESIGN: A mediational design was employed in a group of homeless individuals. METHOD: Participants (N = 40), who were homeless at the time of the study, completed a single-session assessment of paranoia, emotion regulation, and maladaptive behaviours. RESULTS: Mediation analyses indicated that individuals scoring high on paranoia were more likely to engage in maladaptive behaviours, particularly substance misuse and aggression, when they had difficulty regulating their emotions. These results demonstrate a novel finding relating to the effect of emotion regulation in maintaining psychopathology and behaviours in vulnerable individuals, which may in turn sustain periods of homelessness. CONCLUSIONS: Emotion regulation may therefore be one particular psychological mechanism through which severe mental illness affects engagement in self-destructive behaviours in homelessness. These findings have valuable clinical implications for targeted therapeutic interventions, in this often difficult to treat homeless population. PRACTITIONER POINTS: Psychosis is over-represented in the homeless population; the cycle of homelessness may be attenuated by addressing psychotic symptomology. Homeless individuals engage in drug abuse, self-harm, aggression, and high-risk sexual practices due to an inability to regulate distressing emotions effectively. Therapeutic interventions, such as MBT and DBT, which target emotion regulation difficulties, may be useful in reducing maladaptive behaviours and preventing homelessness, by providing emotion regulation strategies to cope when homeless persons become distressed.


Subject(s)
Adaptation, Psychological , Emotional Adjustment , Ill-Housed Persons/psychology , Paranoid Disorders/psychology , Self-Injurious Behavior/psychology , Adult , Aggression/psychology , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Psychiatric Status Rating Scales , Risk Factors , Substance-Related Disorders/psychology , Surveys and Questionnaires , Young Adult
7.
J Invest Dermatol ; 137(10): 2208-2216, 2017 10.
Article in English | MEDLINE | ID: mdl-28595997

ABSTRACT

ß-Human papillomaviruses (HPVs) cause near ubiquitous latent skin infection within long-lived hair follicle (HF) keratinocyte stem cells. In patients with epidermodysplasia verruciformis, ß-HPV viral replication is associated with skin keratosis and cutaneous squamous cell carcinoma. To determine the role of HF keratinocyte stem cells in ß-HPV-induced skin carcinogenesis, we utilized a transgenic mouse model in which the keratin 14 promoter drives expression of the entire HPV8 early region (HPV8tg). HPV8tg mice developed thicker skin in comparison with wild-type littermates consistent with a hyperproliferative epidermis. HF keratinocyte proliferation was evident within the Lrig1+ keratinocyte stem cell population (69 vs. 55%, P < 0.01, n = 7), and not in the CD34+, LGR5+, and LGR6+ keratinocyte stem cell populations. This was associated with a 2.8-fold expansion in Lrig1+ keratinocytes and 3.8-fold increased colony-forming efficiency. Consistent with this, we observed nuclear p63 expression throughout this population and the HF infundibulum and adjoining interfollicular epidermis, associated with a switch from p63 transcriptional activation isoforms to ΔNp63 isoforms in HPV8tg skin. Epidermodysplasia verruciformis keratosis and in some cases actinic keratoses demonstrated similar histology associated with ß-HPV reactivation and nuclear p63 expression within the HF infundibulum and perifollicular epidermis. These findings would suggest that ß-HPV field cancerization arises from the HF junctional zone and predispose to squamous cell carcinoma.


Subject(s)
Keratinocytes/pathology , Keratosis, Actinic/pathology , Membrane Glycoproteins/metabolism , Neoplasms, Experimental , Neoplastic Stem Cells/pathology , Nerve Tissue Proteins/metabolism , Skin Neoplasms/pathology , Animals , Cell Proliferation , Keratinocytes/metabolism , Keratosis, Actinic/metabolism , Mice , Mice, Transgenic , Neoplastic Stem Cells/metabolism , Papillomaviridae , Skin Neoplasms/metabolism
8.
Health Care Women Int ; 37(1): 118-39, 2016.
Article in English | MEDLINE | ID: mdl-26251953

ABSTRACT

Researchers in Norway explore treatment options in primary care for immigrant women with mental health problems compared with nonimmigrant women. Three national registers were linked together for 2008. Immigrant women from Sweden, Poland, the Philippines, Thailand, Pakistan, and Russia were selected for analysis and compared with Norwegian women. Using logistic regression, we investigated whether treatment type varied by country of origin. Rates of sickness leave and psychiatric referrals were similar across all groups. Conversational therapy and use of antidepressants and anxiolytics were lower among Filipina, Thai, Pakistani, and Russian women than among Norwegians. Using the broad term "immigrants" masks important differences in treatment and health service use. By closely examining mental health treatment differences by country of origin, gaps in service provision and treatment uptake may be identified and addressed with more success.


Subject(s)
Emigrants and Immigrants/psychology , Mental Disorders/ethnology , Mental Disorders/therapy , Mental Health Services/statistics & numerical data , Patient Acceptance of Health Care/ethnology , Population Groups/psychology , Primary Health Care/statistics & numerical data , Adult , Cultural Competency , Emigrants and Immigrants/statistics & numerical data , Female , Healthcare Disparities , Humans , Mental Disorders/psychology , Mental Health , Norway/epidemiology , Patient Acceptance of Health Care/statistics & numerical data , Population Groups/statistics & numerical data , Retrospective Studies
9.
Aust Health Rev ; 40(2): 205-209, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26342675

ABSTRACT

Learning about interdisciplinary health approaches is important for students of health professions. Yet, interdisciplinary learning programs are sparse within primary health clinics. Larger health care complexes, such as superclinics in Australia, offer interdisciplinary learning opportunities for health, but also pose difficulties. This case study describes the introduction of an interdisciplinary student learning program in Adelaide, South Australia, over a 1-year period. The objectives of the program were for students to: (1) understand the range of patient needs in primary healthcare (PHC); (2) identify circumstances in which the involvement of another professional may benefit patients; and (3) learn more about team work. Despite barriers, the practice environment was found to be suitable for student learning. Program modifications were made in response to the need for scheduled time for clinic staff to work with students, non-simultaneous student placements, a need for a coordinator, the availability of discipline-specific supervision and the need to provide incentives for students to participate, particularly giving course credits or recognition. Embedding interdisciplinary programs in a clinic setting requires time and resources. The present case study demonstrates that larger PHC clinics have the potential to implement interdisciplinary learning programs based on an authentic learning approach.


Subject(s)
Clinical Clerkship , Education, Medical, Undergraduate/organization & administration , Interdisciplinary Communication , Organizational Innovation , Clinical Competence , Humans , Medically Underserved Area , Organizational Case Studies , South Australia , Surveys and Questionnaires
10.
Epilepsy Behav ; 51: 117-23, 2015 Oct.
Article in English | MEDLINE | ID: mdl-26262940

ABSTRACT

OBJECTIVES: Eighty-five percent of the 33 million children with epilepsy (CWE) worldwide live in low- and middle-income countries (LMICs). There is limited research into epilepsy-related comorbidities in LMICs, and there are no studies of the long-term progression of behavioral and intellectual difficulties in childhood epilepsy in sub-Saharan Africa. We aimed to assess behavior and cognition at three-year follow-up in CWE in rural Tanzania. METHODS: In 2010, a cross-sectional study identified 112 CWE 6 to 14years of age and 113 age- and sex-matched controls in the Hai district of northern Tanzania. From March to June 2013, cases and controls (now 10 to 18years of age) were followed up. At baseline, behavior was assessed using the Rutter A Questionnaire and cognition using the Goodenough-Harris Drawing Test. Details of current seizure frequency and antiepileptic drug (AED) use among CWE were collected. RESULTS: At follow-up, cases had significantly more behavioral difficulties compared with controls (48% of 108 cases versus 14% of 103 controls (p<0.001)). Additionally, 69% of the cases and 16% of the controls had cognitive impairment (p<0.001). In CWE with decreased seizure frequency from baseline to follow-up, behavior had improved significantly. At follow-up, there was no significant difference in behavior between CWE with decreased seizure frequency and those with good seizure control throughout. SIGNIFICANCE: Behavioral difficulties and cognitive impairment are common among CWE in this population. Improved access to AED treatment and subsequent improved seizure control may reduce the frequency of behavioral difficulties seen in this population.


Subject(s)
Child Behavior Disorders/epidemiology , Cognition Disorders/epidemiology , Epilepsy/psychology , Adolescent , Anticonvulsants/therapeutic use , Case-Control Studies , Child , Child Behavior Disorders/etiology , Cognition Disorders/etiology , Comorbidity , Cross-Sectional Studies , Epilepsy/drug therapy , Female , Follow-Up Studies , Humans , Male , Odds Ratio , Prevalence , Rural Population/statistics & numerical data , Seizures/drug therapy , Tanzania/epidemiology
11.
Implement Sci ; 8: 98, 2013 Aug 29.
Article in English | MEDLINE | ID: mdl-23984982

ABSTRACT

BACKGROUND: Population health research can generate significant outcomes for communities, while Knowledge Translation (KT) aims to expressly maximize the outcomes of knowledge producing activity. Yet the two approaches are seldom explicitly combined as part of the research process. A population health study in Port Lincoln, South Australia offered the opportunity to develop and apply the co-KT Framework to the entire research process. This is a new framework to facilitate knowledge formation collaboratively between researchers and communities throughout a research to intervention implementation process. DESIGN: This study employs a five step framework (the co-KT Framework) that is formulated from engaged scholarship and action research principles. By following the steps a knowledge base will be cumulatively co-created with the study population that is useful to the research aims. Step 1 is the initiating of contact between the researcher and the study contexts, and the framing of the research issue, achieved through a systematic data collection tool. Step 2 refines the research issue and the knowledge base by building into it context specific details and conducting knowledge exchange events. Step 3 involves interpreting and analysing the knowledge base, and integrating evidence to inform intervention development. In Step 4 the intervention will be piloted and evaluated. Step 5 is the completion of the research process where outcomes for improvement will be instituted as regular practice with the facilitation of the community.In summary, the model uses an iterative knowledge construction mechanism that is complemented by external evidence to design interventions to address health priorities within the community. DISCUSSION: This is a systematic approach that operationalises the translational cycle using a framework for KT practice. It begins with the local context as its foundation for knowledge creation and ends with the development of contextually applicable interventions. It will be of interest to those involved in KT research, participatory action research, population health research and health care systems studies. The co-KT Framework is a method for embedding the principles of KT into all stages of a community-based research process, in which research questions are framed by emergent data from each previous stage.


Subject(s)
Population Surveillance/methods , Research Design , Translational Research, Biomedical , Adolescent , Adult , Aged , Child , Child, Preschool , Humans , Infant , Middle Aged , Rural Population , South Australia , Young Adult
12.
Implement Sci ; 8: 54, 2013 May 21.
Article in English | MEDLINE | ID: mdl-23694753

ABSTRACT

BACKGROUND: Despite the considerable and growing body of knowledge translation (KT) literature, there are few methodologies sufficiently detailed to guide an integrated KT research approach for a population health study. This paper argues for a clearly articulated collaborative KT approach to be embedded within the research design from the outset. DISCUSSION: Population health studies are complex in their own right, and strategies to engage the local community in adopting new interventions are often fraught with considerable challenges. In order to maximise the impact of population health research, more explicit KT strategies need to be developed from the outset. We present four propositions, arising from our work in developing a KT framework for a population health study. These cover the need for an explicit theory-informed conceptual framework; formalizing collaborative approaches within the design; making explicit the roles of both the stakeholders and the researchers; and clarifying what counts as evidence. From our deliberations on these propositions, our own co-creating (co-KT) Framework emerged in which KT is defined as both a theoretical and practical framework for actioning the intent of researchers and communities to co-create, refine, implement and evaluate the impact of new knowledge that is sensitive to the context (values, norms and tacit knowledge) where it is generated and used. The co-KT Framework has five steps. These include initial contact and framing the issue; refining and testing knowledge; interpreting, contextualising and adapting knowledge to the local context; implementing and evaluating; and finally, the embedding and translating of new knowledge into practice. SUMMARY: Although descriptions of how to incorporate KT into research designs are increasing, current theoretical and operational frameworks do not generally span a holistic process from knowledge co-creation to knowledge application and implementation within one project. Population health studies may have greater health impact when KT is incorporated early and explicitly into the research design. This, we argue, will require that particular attention be paid to collaborative approaches, stakeholder identification and engagement, the nature and sources of evidence used, and the role of the research team working with the local study community.


Subject(s)
Health Care Surveys/methods , Health Surveys/methods , Translational Research, Biomedical/methods , Adult , Evidence-Based Practice , Health Care Reform , Health Knowledge, Attitudes, Practice , Health Services/statistics & numerical data , Health Services Needs and Demand , Humans , Interprofessional Relations , South Australia
13.
Psychol Res ; 76(3): 263-9, 2012 May.
Article in English | MEDLINE | ID: mdl-21559946

ABSTRACT

While viewing faces, humans often demonstrate a natural gaze bias towards the left visual field, that is, the right side of the viewee's face is often inspected first and for longer periods. Previous studies have suggested that this gaze asymmetry is a part of the gaze pattern associated with face exploration, but its relation with perceptual processing of facial cues is unclear. In this study we recorded participants' saccadic eye movements while exploring face images under different task instructions (free viewing, judging familiarity and judging facial expression). We observed a consistent left gaze bias in face viewing irrespective of task demands. The probability of the first fixation and the proportion of overall fixations directed at the left hemiface were indistinguishable across different task instructions or across different facial expressions. It seems that the left gaze bias is an automatic reflection of hemispheric lateralisation in face processing, and is not necessarily correlated with the perceptual processing of a specific type of facial information.


Subject(s)
Attention/physiology , Functional Laterality/physiology , Saccades/physiology , Visual Fields/physiology , Visual Perception/physiology , Adolescent , Adult , Face , Facial Expression , Female , Fixation, Ocular/physiology , Humans , Male , Photic Stimulation
15.
Soc Work Health Care ; 36(4): 53-77, 2003.
Article in English | MEDLINE | ID: mdl-12836780

ABSTRACT

Burn-injured people are confronted with enormous challenges in their recovery process on a physical, emotional, and spiritual level. Despite the magnitude of trauma, there has been a dearth of research exploring adult burn survivors' perception of their experiences. In this qualitative study, eight burn survivors were interviewed. Influences that impacted their experiences such as perceived memories, time, and age when burned were distinguished from the multiple themes of losses to identity, life style, relationships and physical functioning as well as themes of adaptation, coping and resiliency. Drawing from the burn survivors' stories of recovery can provide insights for social workers and other health care professionals in serving this compelling population more effectively.


Subject(s)
Burns/psychology , Survivors/psychology , Adaptation, Psychological , Adult , Burns/rehabilitation , Female , Humans , Interpersonal Relations , Interviews as Topic , Male , Middle Aged , Qualitative Research , Self Efficacy
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