Showing items 181 - 200 of 13541

Plasma lipocalin-2/NGAL is stable over 12 weeks and is not modulated by exercise or dieting

- Nakai, Michael, Prestes, Priscilla, O’Brien, Brendan, Charchar, Fadi, Marques, Francine

  • Authors: Nakai, Michael , Prestes, Priscilla , O’Brien, Brendan , Charchar, Fadi , Marques, Francine
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Scientific Reports Vol. 11, no. 1 (2021), p.
  • Full Text:
  • Reviewed:
  • Description: Amongst other immune cells, neutrophils play a key role in systemic inflammation leading to cardiovascular disease and can release inflammatory factors, including lipocalin-2 (LCN2). LCN2 drives cardiac hypertrophy and plays a role in maladaptive remodelling of the heart and has been associated with renal injury. While lifestyle factors such as diet and exercise are known to attenuate low-grade inflammation, their ability to modulate plasma LCN2 levels is unknown. Forty-eight endurance athletes and 52 controls (18–55 years) underwent measurement for various cardiovascular health indicators, along with plasma LCN2 concentration. No significant difference in LCN2 concentration was seen between the two groups. LCN2 was a very weak predictor or absent from models describing blood pressures or predicting athlete status. In another cohort, 57 non-diabetic overweight or obese men and post-menopausal women who fulfilled Adult Treatment Panel III metabolic syndrome criteria were randomly allocated into either a control, modified Dietary Approaches to Stop Hypertension (DASH) diet, or DASH and exercise group. Pre- and post-intervention demographic, cardiovascular health indicators, and plasma LCN2 expression were measured in each individual. While BMI fell in intervention groups, LCN2 levels remained unchanged within and between all groups, as illustrated by strong correlations between LCN2 concentrations pre- and 12 weeks post-intervention (r = 0.743, P < 0.0001). This suggests that circulating LCN2 expression are stable over a period of at least 12 weeks and is not modifiable by diet and exercise. © 2021, The Author(s). *Please note that there are multiple authors for this article therefore only the name of the first 5 including Federation University Australia affiliate “Priscilla Prestes, Brendan O'Brien, Fadi Charchar and Francine Marques” is provided in this record** .

Potential-based multiobjective reinforcement learning approaches to low-impact agents for AI safety

- Vamplew, Peter, Foale, Cameron, Dazeley, Richard, Bignold, Adam

  • Authors: Vamplew, Peter , Foale, Cameron , Dazeley, Richard , Bignold, Adam
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Engineering Applications of Artificial Intelligence Vol. 100, no. (2021), p.
  • Full Text: false
  • Reviewed:
  • Description: The concept of impact-minimisation has previously been proposed as an approach to addressing the safety concerns that can arise from utility-maximising agents. An impact-minimising agent takes into account the potential impact of its actions on the state of the environment when selecting actions, so as to avoid unacceptable side-effects. This paper proposes and empirically evaluates an implementation of impact-minimisation within the framework of multiobjective reinforcement learning. The key contributions are a novel potential-based approach to specifying a measure of impact, and an examination of a variety of non-linear action-selection operators so as to achieve an acceptable trade-off between achieving the agent's primary task and minimising environmental impact. These experiments also highlight a previously unreported issue with noisy estimates for multiobjective agents using non-linear action-selection, which has broader implications for the application of multiobjective reinforcement learning. © 2021

Predicting the condensate viscosity near the wellbore by ELM and ANFIS-PSO strategies

- Mousazadeh, Fatemeh, Naeem, Mohammad, Daneshfar, Reza, Soulgani, Bahram, Naseri, Maryam

  • Authors: Mousazadeh, Fatemeh , Naeem, Mohammad , Daneshfar, Reza , Soulgani, Bahram , Naseri, Maryam
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Journal of Petroleum Science and Engineering Vol. 204, no. (2021), p.
  • Full Text: false
  • Reviewed:
  • Description: By lowering the pressure beneath the dew point as the result of production in gas condensate (GC) reservoirs, liquid droplets are formed in the borehole zone. Accurate calculation of pressure decline and optimization operations in these reservoirs need to know and predict the specific properties such as liquid viscosity. Empirical models have already been developed to predict this parameter. Due to the peculiar behavior of fluids beneath the dew point pressure (DPP), the prediction of liquid viscosity associates with an error. With the development of machine learning (ML) approaches, studies on fluid properties like other sciences have entered a new phase. In this study, extreme learning machine (ELM) and adaptive neuro-fuzzy inference system with particle swarm optimization (ANFIS-PSO) methods applied to this end. Therefore, a large data bank of reservoir and fluid properties including reservoir temperature and pressure, specific gravity (SG) of gas, API gravity, and gas to oil ratio (Rs) were used. The results showed that R-squared and RMSE for ANFIS-PSO are 0.762 and 0.15, respectively, while these values are 0.941 and 0.06 for ELM which shows that the last model has a better performance in estimating output values. Also, the range of reliable data is determined, and further, a sensitivity analysis was done, which showed that the greatest impact on the viscosity was from SG, and API gravity has the least effect on it. This model can be used as a reference for calculating condensate viscosity and also by expanding the range of datasets, it can be applied in the commercial software. © 2021 Elsevier B.V.

Prediction and assessment of rock burst using various meta-heuristic approaches

- Shukla, Ramesht, Khandelwal, Manoj, Kankar, P.

  • Authors: Shukla, Ramesht , Khandelwal, Manoj , Kankar, P.
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Mining, Metallurgy and Exploration Vol. 38, no. 3 (2021), p. 1375-1381
  • Full Text: false
  • Reviewed:
  • Description: One of the utmost severe mining catastrophes in underground hard rock mines is rock burst phenomena. It can lead to damage to mine openings and equipment as well as trigger accidents or even threat to life as well. Due to this, a number of researchers are forced to study some easy-to-use alternative methods to predict the rock burst occurrence. Nevertheless, due to the extremely multifaceted relation between mechanical, geological and geometric factors of the mines, the conventional prediction methods are not able to produce accurate results. With the expansion of machine learning methods, a revolution in the rock burst occurrence has become imaginable. In present study, three machine learning methods, namely XGBoost, decision tree and support vector machine, are utilized to predict the occurrence of rock burst in various underground projects. A total of 134 rock burst events were gathered together from various published literatures comprising maximum tangential stress (MTS), elastic energy index (EEI), uniaxial compressive strength and uniaxial tensile stress (UTS) that have been used to develop various machine learning models. The performance of machine learning methods is evaluated based on the accuracy, sensitivity and specificity of the rock burst prediction. © 2021, Society for Mining, Metallurgy & Exploration Inc.

Prevalence of and factors associated with anaemia in women of reproductive age in Bangladesh, Maldives and Nepal : evidence from nationally-representative survey data

- Ashfikur Rahman, Md, Sazedur Rahman, Md, Rahman, Muhammad Aziz, Szymlek-Gay, Ewa, Uddin, Riaz, Islam, Sheikh

  • Authors: Ashfikur Rahman, Md , Sazedur Rahman, Md , Rahman, Muhammad Aziz , Szymlek-Gay, Ewa , Uddin, Riaz , Islam, Sheikh
  • Date: 2021
  • Type: Text , Journal article
  • Relation: PLoS ONE Vol. 16, no. 1 January (2021), p.
  • Full Text:
  • Reviewed:
  • Description: Background Anaemia is a significant public health problem in most South-Asian countries, causing increased maternal and child mortality and morbidity. This study aimed to estimate the prevalence of and factors associated with anaemia in women of reproductive age in Bangladesh, Maldives, and Nepal. Methods We used the nationally-representative Demographic and Health Surveys Program data collected from women of reproductive age (15-49 years) in 2011 in Bangladesh (n = 5678), 2016 in Maldives (n = 6837), and 2016 in Nepal (n = 6419). Anaemia was categorized as mild (haemoglobin [Hb] of 10.0-10.9 g/dL for pregnant women and 11.0-11.9 g/dL for non-pregnant women), moderate (Hb of 7.0-9.9 g/dL for pregnant women and 8.0-10.9 g/dL for non-pregnant women), and severe (Hb <7.0 g/dL for pregnant women and <8.0 g/dL for non-pregnant women). Multinomial logistic regression analyses were used to identify factors associated with anaemia. Results The prevalence of anaemia was 41.8% in Bangladesh, 58.5% in Maldives, and 40.6% in Nepal. In Bangladesh, postpartum amenorrhoeic, non-educated, and pregnant women were more likely to have moderate/severe anaemia compared to women who were menopausal, had secondary education, and were not pregnant, respectively. In Maldives, residence in urban areas, underweight, having undergone female sterilization, current pregnancy, and menstruation in the last six weeks were associated with increased odds of moderate/severe anaemia. In Nepal, factors associated with increased odds of moderate/ severe anaemia were having undergone female sterilization and current pregnancy. Conclusion Anaemia remains a significant public health issue among 15-49-year-old women in Bangladesh, Maldives, and Nepal, which requires urgent attention. Effective policies and programmes for the control and prevention of anaemia should take into account the unique factors associated with anaemia identified in each country. In all three countries, strategies for the prevention and control of anaemia should particularly focus on women who are pregnant, underweight, or have undergone sterilization. © 2021 Rahman et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Primal necessary characterizations of transversality properties

- Cuong, Nguyen, Kruger, Alexander

  • Authors: Cuong, Nguyen , Kruger, Alexander
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Positivity Vol. 25, no. 2 (2021), p. 531-558
  • Relation: http://purl.org/au-research/grants/arc/DP160100854
  • Full Text: false
  • Reviewed:
  • Description: This paper continues the study of general nonlinear transversality properties of collections of sets and focuses on primal necessary (in some cases also sufficient) characterizations of the properties. We formulate geometric, metric and slope characterizations, particularly in the convex setting. The Hölder case is given a special attention. Quantitative relations between the nonlinear transversality properties of collections of sets and the corresponding regularity properties of set-valued mappings as well as two nonlinear transversality properties of a convex set-valued mapping to a convex set in the range space are discussed. © 2020, Springer Nature Switzerland AG.

Privacy-aware data fusion and prediction with spatial-temporal context for smart city industrial environment

- Qi, Lianyong, Hu, Chunhua, Zhang, Xuyun, Khosravi, Mohammad, Pang, Shaoning

  • Authors: Qi, Lianyong , Hu, Chunhua , Zhang, Xuyun , Khosravi, Mohammad , Pang, Shaoning
  • Date: 2021
  • Type: Text , Journal article
  • Relation: IEEE Transactions on Industrial Informatics Vol. 17, no. 6 (2021), p. 4159-4167
  • Full Text: false
  • Reviewed:
  • Description: As one of the cyber-physical-social systems that plays a key role in people's daily activities, a smart city is producing a considerable amount of industrial data associated with transportation, healthcare, business, social activities, and so on. Effectively and efficiently fusing and mining such data from multiple sources can contribute much to the development and improvements of various smart city applications. However, the industrial data collected from the smart city are often sensitive and contain partial user privacy such as spatial-temporal context information. Therefore, it is becoming a necessity to secure user privacy hidden in the smart city data before these data are integrated together for further mining, analyses, and prediction. However, due to the inherent tradeoff between data privacy and data availability, it is often a challenging task to protect users' context privacy while guaranteeing accurate data analysis and prediction results after data fusion. Considering this challenge, a novel privacy-aware data fusion and prediction approach for the smart city industrial environment is put forward in this article, which is based on the classic locality-sensitive hashing technique. At last, our proposal is evaluated by a set of experiments based on a real-world dataset. Experimental results show better prediction performances of our approach compared to other competitive ones. © 2005-2012 IEEE. *Please note that there are multiple authors for this article therefore only the name of the first 5 including Federation University Australia affiliate “Shaoning Pang” is provided in this record**

Process modelling for the production of hydrogen-rich gas from gasification of coal using oxygen, CO2 and steam reactants

- Shahabuddin, M., Bhattacharya, Sankar

  • Authors: Shahabuddin, M. , Bhattacharya, Sankar
  • Date: 2021
  • Type: Text , Journal article
  • Relation: International Journal of Hydrogen Energy Vol. 46, no. 47 (2021), p. 24051-24059
  • Full Text: false
  • Reviewed:
  • Description: This process modelling studied the effect of different reactants on syngas composition and gasifier heat duty (heat energy required to carry out the operation) and the downstream treatment of CO rich syngas to maximise hydrogen yield. The process modelling was validated against experimental data obtained from a large bench-scale entrained flow gasifier. Results show that considering the H2/CO ratio, the steam-O2 reactant favours the most compared to those of the pure oxygen and oxygen-CO2 reactants. Under comparable operating conditions, the highest H2/CO ratio of 0.74 was determined using steam-O2 reactant compared to that of 0.31 and 0.33 using steam-CO2 and pure oxygen reactant. The catalytic water-gas shift reaction (WGSR) favours the yield of H2 with complete CO conversion at a temperature of 400 °C using the steam/coal ratio of 1.2. Supplying steam in the gasifier requires more heat energy to be supplied to drive endothermic gasification reaction and maintain the gasifier temperature. Under complete carbon conversion, steam-CO2 and steam-oxygen reactants require 5–65 kW more energy than pure oxygen. © 2021 Hydrogen Energy Publications LLC

Prognostic role of immune checkpoint regulators in cholangiocarcinoma : a pilot study

- Cao, Lu, Prithviraj, Prashanth, Shrestha, Ritu, Sharma, Revati, Kannourakis, George

  • Authors: Cao, Lu , Prithviraj, Prashanth , Shrestha, Ritu , Sharma, Revati , Kannourakis, George
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Journal of Clinical Medicine Vol. 10, no. 10 (2021), p.
  • Full Text: false
  • Reviewed:
  • Description: Cholangiocarcinoma (CCA) is a hepatobiliary malignancy associated with steadily increasing incidence and poor prognosis. Ongoing clinical trials are assessing the effectiveness and safety of a few immune checkpoint inhibitors (ICIs) in CCA patients. However, these ICI treatments as monotherapies may be effective for a proportion of patients with CCA. The prevalence and distribution of other immune checkpoints (ICs) in CCA remain unclear. In this pilot study, we screened databases of CCA patients for the expression of 19 ICs and assessed the prognostic significance of these ICs in CCA patients. Notably, expression of immune modulator IDO1 and PD-L1 were linked with poor overall survival, while FASLG and NT5E were related to both worse overall survival and progression-free survival. We also identified immune modulators IDO1, FASLG, CD80, HAVCR2, NT5E, CTLA-4, LGALS9, VTCN1 and TNFRSF14 that synergized with PD-L1 and correlated with worse patient outcomes. In vitro studies revealed that the expression of ICs was closely linked with aggressive CCA subpopulations, such as cancer stem cells and cells undergoing TGF-β and TNF-α-mediated epithelial-to-mesenchymal transition. These findings suggest that the aforementioned IC molecules may serve as potential prognostic biomarkers and drug targets in CCA patients, leading to lasting and durable treatment outcomes. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. **Please note that there are multiple authors for this article therefore only the name of the first 5 including Federation University Australia affiliate “Prashanth Prithviraj, Revati Sharma, George Kannourakis” is provided in this record**

Prospective associations between hegemonic masculinity and incident depression/depressive symptoms : results from a national sample of Australian emerging adult men

- Van Doorn, George, Teese, Robert, Gill, Peter

  • Authors: Van Doorn, George , Teese, Robert , Gill, Peter
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Personality and Individual Differences Vol. 179, no. (Journal article 2021), p.
  • Full Text: false
  • Reviewed:
  • Description: Emerging adulthood is associated with several freedoms and opportunities, but is also a period of increased risk for several physical and mental health conditions. This study assessed the association between adherence to traditional masculine norms at baseline and incident depression and incident depressive symptoms at follow-up in a national sample of Australian emerging adult men (18–29 years). We performed binary logistic regressions based on two waves of data from a national longitudinal survey, Ten to Men: The Australian Longitudinal Study on Male Health. The sample comprised 2170 emerging adult men who completed both the Wave 1 (2013–2014) and Wave 2 (2015–2016) surveys. Results indicated that adhering to multidimensional hegemonic masculine norms at baseline did not confer risk for developing either incident Major Depression or incident depressive symptoms at follow-up, except for adhering to ‘playboy’ (e.g., desire for multiple sexual partners). These findings conflict with previous reports showing that hegemonic masculinity is associated with depression and depressive symptoms, and suggest that the assumption that adhering to traditional masculine norms places men at greater risk for depression should be questioned, at least during the emerging adult stage of the lifespan. © 2021 Elsevier Ltd

Public policy, ageing and work, and longer working lives

- Taylor, Philip, Earl, Catherine, Brooke, Elizabeth, McLoughlin, Christopher

  • Authors: Taylor, Philip , Earl, Catherine , Brooke, Elizabeth , McLoughlin, Christopher
  • Date: 2021
  • Type: Text , Book chapter
  • Relation: Chapter 2 p. 46-56
  • Full Text: false
  • Reviewed:
  • Description: With current policy concerns about shortfalls of labour supply and effects on the social welfare system due to population ageing, there is a need to understand the factors that shape women's choices about if, when and how to retire. Recent trends indicating the increased workforce participation of women demand new policy responses to the end of careers and retirement transitions to sustain acceptable levels of participation and productivity. This book is innovative in that it will examine constellations of factors that disadvantage or advantage women's career and retirement trajectories against a backdrop of public policy efforts to extend working lives.

Quantifying psychopathology in rapid readmissions

- Suhail, Sam, Sandhu, Harpinder, Mellacheruvu, Sandeep

  • Authors: Suhail, Sam , Sandhu, Harpinder , Mellacheruvu, Sandeep
  • Date: 2021
  • Type: Text , Journal article
  • Relation: CNS spectrums Vol. 26, no. 2 (2021), p. 165-166
  • Full Text:
  • Reviewed:
  • Description: Psychiatric readmissions contribute to a significant cost and healthcare burden to physicians, hospitals, and the healthcare system as an entity. Furthermore, as part of the Affordable Care Act, the Centers for Medicare and Medicaid Services (CMS) began to reduce financial coverage to hospitals with overwhelming rehospitalization rates. The purpose of this study was to do a systematic analysis on inpatient psychiatric readmission data and identify co-morbidities and risk factors that lead to high readmission rates. The data collection includes 163 patients with a total of 348 readmissions over the span of 90 days at one inner-city hospital in the Chicagoland area. Study findings suggest that higher rates of readmission are linked to cocaine abuse in both male and female populations. Diagnosis of bipolar in females and schizoaffective disorder in male populations were the among the highest for readmission. Key social factors such as homelessness and low socioeconomic status were identified to contribute to a large proportion of psychiatric readmission burden. However, an overwhelming amount of information was missing due to unobtained labs and lack of current patient social history. By using this data as well as data from electronic medical records (EMRs) to further investigate and identify other features of at-risk patients, hospitals can potentially address these markers to lower readmission rates. Ultimately, a higher understanding of the patients' needs can be understood and can help develop standardized plans of care for prevalent psychiatric illnesses in these populations.

Rapid visual search games and accuracy of students' clinical observation skills : a comparative study

- Al-Moteri, Modi, Alrehaili, Amani, Plummer, Virginia, Yaseen, Ruba, Alhakami, Reem

  • Authors: Al-Moteri, Modi , Alrehaili, Amani , Plummer, Virginia , Yaseen, Ruba , Alhakami, Reem
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Clinical Simulation in Nursing Vol. 55, no. (2021), p. 19-26
  • Full Text: false
  • Reviewed:
  • Description: Background: Rapid visual search (RVS) games require a player to search for a target against a distracting background. Playing RVS is known to improve observation and related skills for those professions that require ultimate observation skills. Aim: To examine whether using RVS games improves clinical observation of nursing students. Method: Post intervention assessment design was used in which participants were assigned to either RVS group or non-RVS group and their performance was compared to assess the impact of RVS games on students’ observational skills. Finding: Study findings revealed that RVS improved identification of cues that are highly visual in nature and related to liver cirrhosis. This may indicate that the RVS groups were more focused on the clinical markers than were the non-RVS group. © 2021. **Please note that there are multiple authors for this article therefore only the name of the first 5 including Federation University Australia affiliate “Virginia Plummer” is provided in this record**

Reduced renal function may explain the higher prevalence of hyperuricemia in older people

- Wang, Yutang, Zhang, Wanlin, Qian, Tingting, Sun, Hui, Xu, Qun, Hou, Xujuan, Hu, Wenqi, Zhang, Guang, Drummond, Grant, Sobey, Chris, Charchar, Fadi, Golledge, Jonathan, Yang, Guang

  • Authors: Wang, Yutang , Zhang, Wanlin , Qian, Tingting , Sun, Hui , Xu, Qun , Hou, Xujuan , Hu, Wenqi , Zhang, Guang , Drummond, Grant , Sobey, Chris , Charchar, Fadi , Golledge, Jonathan , Yang, Guang
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Scientific Reports Vol. 11, no. 1 (2021), p.
  • Relation: https://purl.org/au-research/grants/nhmrc/1062671
  • Full Text:
  • Reviewed:
  • Description: This study aimed to investigate the contribution of renal dysfunction to enhanced hyperuricemia prevalence in older people. A cohort of 13,288 Chinese people aged between 40 and 95 years were recruited from January to May 2019. Serum uric acid concentration and estimated glomerular filtration rate [eGFR] were measured. The associations between age or eGFR and serum uric acid or hyperuricemia were analyzed using linear or binary logistic regression adjusting for risk factors. Uric acid concentration and prevalence of hyperuricemia were greater in older participants. Adjustment for reduced renal function (eGFR < 60 mL/min/1.73 m2) eliminated the associations between older age and higher uric acid concentration and between older age and higher prevalence of hyperuricemia diagnosis, whereas adjustment for other risk factors did not change those associations. Lower eGFR was associated with higher uric acid concentration both before (β = − 0.296, P < 0.001) and after adjustment for age (β = − 0.313, P < 0.001). Reduced renal function was associated with hyperuricemia diagnosis both before (odds ratio, OR, 3.64; 95% CI 3.10–4.28; P < 0.001) and after adjustment for age (adjusted OR, 3.82; 95% CI 3.22–4.54; P < 0.001). Mean serum uric acid and prevalence of hyperuricemia were higher in people with eGFR < 60 mL/min/1.73 m2 than those with eGFR ≥ 60 mL/min/1.73 m2. The prevalence of reduced renal function increased with older age (P < 0.001). This study suggests that reduced renal function can explain the increased uric acid levels and hyperuricemia diagnoses in older people. © 2021, The Author(s).

Reducing health inequities for asylum seekers with chronic non-communicable diseases : Australian context

- Nkhoma, Gloria, Lim, Chiao, Kennedy, Gerard, Stupans, Leva

  • Authors: Nkhoma, Gloria , Lim, Chiao , Kennedy, Gerard , Stupans, Leva
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Australian Journal of Primary Health Vol. 27, no. 2 (2021), p. 130-135
  • Full Text:
  • Reviewed:
  • Description: Asylum seekers are susceptible to chronic non-communicable diseases pre- and post-arrival due to poor living conditions, unhealthy lifestyles and restrictive and poor access to health services. Despite their need for constant and continuous health care access due to poor health, they face healthcare services access restrictions dependent on their visa conditions in Australia. Some visas only allow access to hospital services with restrictions on primary health services access such as GPs and free or discounted pharmaceutical products. In comparison, disadvantaged host populations have access to free/discounted pharmaceutical products and unrestricted access to primary and secondary health care. Ten professionals who constantly engage with asylum seekers in three large asylum seeker centres in Melbourne were interviewed either face-to-face or over the phone. The interviews were essential to understand how health inequities may be addressed for asylum seekers. Interviews were audio-recorded, transcribed verbatim and analysed using a thematic analysis framework. Their recommendations, based mainly on their experience and evaluation of programs, were: (1) cultural competence training (2) use of interpreters (3) free access to health services and medications (4) use of English learning to promote health literacy and community integration (5) robust chronic non-communicable diseases screening and (6) health promotion and accessible food programs. © 2021 La Trobe University.

Reinforcement sensitivity theory of personality questionnaire : factor structure based on CFA and ESEM, and Associations with ADHD

- Gomez, Rapson, Watson, Shaun, Wynen, Johan, Trawley, Steven, Stavropoulos, Vasileios, Corr, Philip

  • Authors: Gomez, Rapson , Watson, Shaun , Wynen, Johan , Trawley, Steven , Stavropoulos, Vasileios , Corr, Philip
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Journal of Personality Assessment Vol. 103, no. 4 (2021), p. 523-534
  • Full Text: false
  • Reviewed:
  • Description: Revised reinforcement sensitivity theory (r-RST) of personality is a major neuropsychological theory of motivation, emotion and personality. This paper presents the results of a study examining: (1) the factor structure of the Reinforcement Sensitivity Theory of Personality Questionnaire (RST-PQ) using confirmatory factor analysis (CFA) and exploratory structural equation modeling (ESEM); and (2) the relationships of the r-RST constructs in the RST-PQ with attention deficit hyperactivity disorder (ADHD) symptom groups of inattention (IA) and hyperactivity/impulsivity (HI). A total of 572 (Sample 1) and 309 (Sample 2) adults completed the RST-PQ. Participants in Sample 2 also completed a questionnaire measuring ADHD symptoms. Results revealed more support for the ESEM model with six factors than the CFA model. For both the ESEM and CFA models, both IA and HI symptom groups were associated positively with the RST-PQ constructs of behavioral inhibition system (BIS) and behavioral approach system (BAS) Impulsivity, with IA also associated negatively with the BAS-Goal-Drive Persistence. The theoretical implications of these findings for understanding the factor structure of the RST-PQ, and for ADHD (IA and HI) in terms of r-RST, are discussed. © 2020 Taylor & Francis Group, LLC.

Relational and caring partnerships : (Re)creating equity, genuineness, and growth in mentoring faculty relationships

- Cash, Penelope, Moffitt, Pertice

  • Authors: Cash, Penelope , Moffitt, Pertice
  • Date: 2021
  • Type: Text , Journal article
  • Relation: International Journal of Nursing Education Scholarship Vol. 18, no. 1 (2021), p.
  • Full Text: false
  • Reviewed:
  • Description: Mentoring in academia has traditionally and currently been prescriptive and institutionally driven. The purpose of this paper is to deconstruct these current mentoring practices with a critical feminist stance. New understandings are shared and gained through dialogue, relevant literature, and performativity to (re)create and name a caring and relational partnership. This caring and relational partnership is grown through a process of mutuality and reciprocity, and based on relational ethics, authenticity, and solidarity. By embracing ideologies of caring and relational ethics, mentoring blurs the lines of mentor/mentee to a perpetual state of walking beside each other in equity to learn and strengthen each other's insights into our worlds. Material realities become illuminated through our shared journeys growing an appreciation and gift of the other. In turn, engaging in meaningful dialogue informs scholarship increasing our understandings of the human condition. © 2021 Walter de Gruyter GmbH, Berlin/Boston 2021.

Resident-to-resident elder mistreatment in residential aged care services : a systematic review of event frequency, type, resident characteristics, and history

- Woolford, Marta, Stacpoole, Susan, Clinnick, Lisa

  • Authors: Woolford, Marta , Stacpoole, Susan , Clinnick, Lisa
  • Date: 2021
  • Type: Text , Journal article , Review
  • Relation: Journal of the American Medical Directors Association Vol. 22, no. 8 (2021), p. 1678-1691.e6
  • Full Text: false
  • Reviewed:
  • Description: Objectives: Resident-to-resident elder mistreatment (R-REM) between residents living in residential aged care (RAC) services is a challenging issue in relation to the care of older people. Evidence suggests that R-REM, such as verbal, physical, and sexual conflict between residents, is a common and pervasive issue. This review examines the frequency with which R-REM occurs in RAC services; identifies the types of R-REM that occur; and provides an overview of the reported characteristics of both the victim and perpetrator involved in the R-REM event. Design: A systematic review was conducted. We searched MEDLINE, EMBASE, CINAHL, PsycINFO, Ageline, and Cochrane Library to identify qualitative and quantitative studies published in the English language. Setting and Participants: Residents living in RAC services. Measures: Data on frequency and characteristics were collated, and aggregate proportions were calculated where possible. Results: Twenty-six studies were identified; most (n = 20) were published in the United States. The overall proportion of residents engaged in R-REM was provided by 7 quantitative studies with the estimated frequency reported to be 12% to 23%. For qualitative studies, the number of care staff reporting to have observed R-REM ranged from 18.7% to 98.0%. Physical and verbal abuse were the most commonly reported types of mistreatment. Characteristics of the perpetrator of R-REM were reported in 12 (46.2%) studies. Overall, the mean age of perpetrators was 80.93 years, most were men (83.2%), and 64.4% had dementia and/or Alzheimer diagnosis. Characteristics of the victim and the history of R-REM were largely omitted from the published studies. Conclusion and Implications: The findings from the review broaden understanding on the extent of R-REM; the individual and event characteristics and ultimately support care planning, policy, and direction for future research. To improve understanding, quality of care, and RAC residents’ well-being, further studies are recommended to address the identified gaps in knowledge. © 2021 AMDA – The Society for Post-Acute and Long-Term Care Medicine

Resilience among trans and gender-diverse adults : the protective role of dispositional hope in the perceived burdensomeness-suicide relationship

- Snooks, Matthew, McLaren, Suzanne

  • Authors: Snooks, Matthew , McLaren, Suzanne
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Psychology of Sexual Orientation and Gender Diversity Vol. 8, no. 1 (2021), p. 57-67
  • Full Text: false
  • Reviewed:
  • Description: Trans and gender-diverse (TGD) adults are at increased risk for suicide. A wealth of evidence supports perceived burdensomeness as an independent key risk factor for suicide. Few studies have investigated dispositional hope or its components (agency and pathways) as a psychological resilience factor within the TGD population. The present study investigated the role of dispositional hope as a moderator in the relationship between perceived burdensomeness and suicidal ideation and behaviors among TGD adults. An international sample of 848 TGD adults aged 18 to 80 years (Mage= 26.27, SD = 7.70), who identified as male (n = 197), female (n = 614), or gender nonbinary (n = 37), completed the online questionnaires. Results demonstrated that dispositional hope, agency, and pathways were significant moderators, strengthening the perceived burdensomeness-suicidal ideation and behaviors relationship. Closer examination of the moderation effects suggests that higher levels of dispositional hope and its components may be protective against suicidal ideation and behaviors among TGD adults experiencing lower, but not higher, levels of perceived burdensomeness. Future research is urgently warranted within this population to help inform specialized interventions that may protect TGD adults who experience higher levels of perceived burdensomeness and are at high risk for suicidal ideation and behaviors. (PsycInfo Database Record (c) 2021 APA, all rights reserved) Public Significance Statement—This study indicates that interventions which enhance hope may be related to lower levels of suicidal thoughts and behaviors among trans and gender-diverse adults with low, but not high, levels of perceived burdensomeness. It also highlights the urgent need for research aimed at identifying protective factors that may reduce suicidal thoughts and behaviors among trans and gender-diverse adults with high levels of perceived burdensomeness. (PsycInfo Database Record (c) 2021 APA, all rights reserved) © 2020 American Psychological Association

Resilience-based multifactorial model of depression among people who lost an only-child in China

- Wang, Anni, Zhang, Wen, Guo, Yufang, Cross, Wendy, Plummer, Virginia, Lam, Louisa, Zhang, Jingping

  • Authors: Wang, Anni , Zhang, Wen , Guo, Yufang , Cross, Wendy , Plummer, Virginia , Lam, Louisa , Zhang, Jingping
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences Vol. 46, no. 1 (2021), p. 75-83
  • Full Text:
  • Reviewed:
  • Description: Objective: There are almost one million families who lost their only child in China, and 65.6% of them had severe and long lasting depression and needed timely psychointervention. This study aims to explore the relationship among resilience and its influential factors, and to compare their effect on depression. Methods: A total of 212 only-child loss person in 9 administrative regions in Changsha were assessed by using Connor-Davidson Resilience Scale, Zung Self-rating Depression Scale, Simplified Coping Style Questionnaire, Simplified Eysenck Personality Questionnaire, Social Support Rating Scale, and General Self-efficacy Scale. A hypothetical model was tested based on Kumpfer resilience framework and stress-coping theory. Results: The influential factors of resilience were: positive coping (the total effect value was 0.480), support utilization (the total effect value was 0.359), neuroticism (the total effect value was -0.326), negative coping (the total effect value was 0.279), extraversion (the total effect value was 0.219), and objective support (the total effect value was 0.077). The process of individual-environment interaction showed a greater impact on resilience, which had a direct effect on depression (the total effect value was −0.344, 67.1%), and also indirect effect through self-efficacy (the total effect value was −0.169). The total effect of resilience accounted for 20.1% of the total effect of all variables. Conclusion: Resilience mainly impacts depression directly, and can negatively predict depression in only-child loss parents. Resilience, located before self-efficacy, is a significant stress mediating variables. Personality traits and support utilization indirectly impact resilience via negative and positive coping. The key to promote the reorganization of resilience is the process of individual-environmental interaction, involving support utilization, positive coping, and some sorts of negative coping strategies, which plays an important role in developing a resilience intervention program and can improve the depression of the only-child loss person.