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Using dye and bromide tracers to identify preferential water flow in agricultural hillslope soil under controlled conditions

- Defterdarović, Jasmina, Krevh, Vedran, Filipović, Lana, Kovač, Zoran, Phogat, Vinod, He, Hailong, Baumgartl, Thomas, Filipović, Vilim

  • Authors: Defterdarović, Jasmina , Krevh, Vedran , Filipović, Lana , Kovač, Zoran , Phogat, Vinod , He, Hailong , Baumgartl, Thomas , Filipović, Vilim
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Water (Switzerland) Vol. 15, no. 12 (2023), p.
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  • Description: Processes in hillslope soils present a particular challenge for agricultural production and soil management due to their hydropedological specifics and high soil erosion risk. Soil heterogeneities can cause preferential and/or lateral flow on the entire hillslope resulting in the off-site movement of water, fertilizers and chemicals used in crop production. A study was conducted under controlled conditions in a laboratory with undisturbed soil cores (250 cm3), which were used to estimate the soil hydraulic properties (SHP) using HYPROP and WP4C devices, while undisturbed soil columns (diameter = 16 cm, length = 25 cm) were used for the evaluation of preferential flow pathways using potassium bromide and Brilliant Blue. Samples were excavated in triplicate from the hilltop, backslope and footslope regions within the inter-rows of a vineyard from a critical zone observatory, SUPREHILL, in Croatia in Dystric Luvic Stagnosol. The aim of this study was to determine if the erosion-affected hillslope position affected the physical, chemical and hydraulic properties of soil and to identify water flow and possible preferential flow using dye and bromide tracers. The results of the sensor measurements and estimated SHPs were in agreement, showing a faster leaching of the irrigated rainwater in the footslope column. The tracer experiments showed variability even in the columns taken from the same position on the hillslope, which can be linked to plant roots and soil fauna activity. Altogether, the results showed a deeper loose layer at the footslope as a consequence of the soil erosion, which then resulted in higher hydraulic conductivity and the leached mass of the bromide due to better soil structure and pore connectivity. Thus, due to significant differences in the leached mass of bromide, this research should be later expanded in field experiments to reveal the impact of surface runoff, subsurface preferential and lateral flow on a larger scale. © 2023 by the authors.

Application of various robust techniques to study and evaluate the role of effective parameters on rock fragmentation

- Mehrdanesh, Amirhossein, Monjezi, Masoud, Khandelwal, Manoj, Bayat, Parichehr

  • Authors: Mehrdanesh, Amirhossein , Monjezi, Masoud , Khandelwal, Manoj , Bayat, Parichehr
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Engineering with Computers Vol. 39, no. 2 (2023), p. 1317-1327
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  • Description: In this paper, an attempt has been made to implement various robust techniques to predict rock fragmentation due to blasting in open pit mines using effective parameters. As rock fragmentation prediction is very complex and complicated, and due to that various artificial intelligence-based techniques, such as artificial neural network (ANN), classification and regression tree and support vector machines were selected for the modeling. To validate and compare the prediction results, conventional multivariate regression analysis was also utilized on the same data sets. Since accuracy and generality of the modeling is dependent on the number of inputs, it was tried to collect enough required information from four different open pit mines of Iran. According to the obtained results, it was revealed that ANN with a determination coefficient of 0.986 is the most precise method of modeling as compared to the other applied techniques. Also, based on the performed sensitivity analysis, it was observed that the most prevailing parameters on the rock fragmentation are rock quality designation, Schmidt hardness value, mean in-situ block size and the minimum effective ones are hole diameter, burden and spacing. The advantage of back propagation neural network technique for using in this study compared to other soft computing methods is that they are able to describe complex and nonlinear multivariable problems in a transparent way. Furthermore, ANN can be used as a first approach, where much knowledge about the influencing parameters are missing. © 2021, The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature.

Trolling, the dark tetrad, and the four-facet spectrum of narcissism

- Furian, Lauren, March, Evita

  • Authors: Furian, Lauren , March, Evita
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Personality and Individual Differences Vol. 208, no. (2023), p.
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  • Description: Trolling is an antisocial online behavior that involves the aggressive provocation of others by causing conflict for the “troll's” own personal amusement. In the current study, we explore the utility of the facets of narcissism (agentic, communal, antagonistic, and neurotic) to predict perpetration of trolling, over and above the variance explained by gender, psychopathy, and sadism. We hypothesised that men would troll more than women, that psychopathy, sadism, and antagonistic narcissism would be positive predictors, and agentic, communal, and neurotic narcissism would be negative predictors. Participants (N = 444; 66 % women, 34 % men; Mage = 34.95, SD = 14.84) were recruited via social media (i.e., Facebook) and Cloud Research to complete an anonymous, online questionnaire that comprised measures of personality and trolling behaviors. Results partially supported the hypothesis, with men, people with high psychopathy, and people with high sadism perpetrating more trolling. Unexpectedly, people with high communal narcissism and neurotic narcissism perpetrated more trolling. Antagonistic narcissism and agentic narcissism were nonsignificant predictors. These findings implicate the utility of exploring the facets of narcissism and provide important information regarding the psychological profile of trolls. © 2023 The Authors

Analysis of the impact of sex and age on the variation in the prevalence of antinuclear autoantibodies in Polish population : a nationwide observational, cross-sectional study

- Krzemie, Kasperczyk, Sławomir, Banach, Maciej, Kasperczyk, Aleksandra, Dobrakowski, Michał, Tomasik, Tomasz, Windak, Adam, Mastej, Mirosław, Catapano, Alberico, Ray, Kausik, Mikhailidis, Dimitri, Toth, Peter, Howard, George, Lip, Gregory, Tomaszewski, Macie, Charchar, Fadi, Sattar, Naveed, Williams, Bryan, MacDonald, Thomas, Penson, Peter, Al-Shaer, B, Andrusewicz, W., Anusz-Gaszewska, E., Balawajder, P., Bańka, G., Barańska-Skubisz E., Przyczyna, B., Bartkowiak S.

On the isolated calmness property of implicitly defined multifunctions

- Gfrerer, Helmut, Outrata, Jiri

  • Authors: Gfrerer, Helmut , Outrata, Jiri
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Journal of Convex Analysis Vol. 30, no. 3 (2023), p. 1001-1023
  • Relation: https://purl.org/au-research/grants/arc/DP160100854
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  • Description: The paper deals with an extension of the available theory of SCD (subspace containing derivatives) mappings to mappings between spaces of different dimensions. This extension enables us to derive workable sufficient conditions for the isolated calmness of implicitly defined multifunctions around given reference points. This stability property differs substantially from isolated calmness at a point and, possibly in conjunction with the Aubin property, offers a new useful stability concept. The application area includes a broad class of parameterized generalized equations, where the respective conditions ensure a rather strong type of Lipschitzian behavior of their solution maps. © 2023 Heldermann Verlag. All rights reserved.

A longitudinal study on a place-based school-university partnership : listening to the voices of in-service teachers

- Ma, Hongming, Green, Monica

  • Authors: Ma, Hongming , Green, Monica
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Teaching and Teacher Education Vol. 129, no. (2023), p.
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  • Description: This paper reports on a longitudinal place-based study by two Australian teacher educators investigating their three-year science-based school-university partnership. The study examined key benefits, challenges, and tensions within the partnership. Data collection was drawn from focus group interviews with in-service teachers across each partnership year. While findings portray the partnership as a catalyst for increased science learning opportunities for school students, teaching opportunities for pre-service teachers, and new in-service teacher roles and responsibilities, the study highlights the evolving nature of partnership development, including the need for continuous negotiation of labor division and stakeholder expectations. © 2023 The Authors

Mental fatigue does not affect static balance under both single and dual task conditions in young adults

- Salihu, Abubakar, Usman, Jibrin, Hill, Keith, Zoghi, Maryam, Jaberzadeh, Shapour

  • Authors: Salihu, Abubakar , Usman, Jibrin , Hill, Keith , Zoghi, Maryam , Jaberzadeh, Shapour
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Experimental Brain Research Vol. 241, no. 7 (2023), p. 1769-1784
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  • Description: The ability to control balance and prevent falls while carrying out daily life activities may require a predominantly controlled (cognitive) or automatic processing depending on the balance challenge, age, or other factors. Consequently, this process may be affected by mental fatigue which has been shown to impair cognitive abilities. Controlling static balance in young adults is a relatively easy task that may proceed automatically with minimal cognitive input making it insusceptible to mental fatigue. To investigate this hypothesis, static single and dual task (while concurrently counting backward by seven) balance was assessed in 60 young adults (25.2 ± 2.4 years) before and after 45 min of Stroop task (mental fatigue condition) and watching documentary (control), presented in a randomized counterbalanced order on separate days. Moreover, because mental fatigue can occur due to task underload or overload, participants carried out two different Stroop tasks (i.e., all congruent, and mainly incongruent trials) on separate days in the mental fatigue condition. Results of the study revealed a significantly higher feeling of mental fatigue after the mental fatigue conditions compared to control (p < 0.001). Similarly, the performance on congruent Stroop trials decreases with time indicating objective mental fatigue (p < 0.01). However, there was no difference in balance or concurrent task performance under both single and dual task assessments between the three conditions (p > 0.05) indicating lack of effect of mental fatigue on static balance in this population. Therefore, future studies investigating this phenomenon in occupational or sport settings in similar population should consider using more challenging balance tasks. © 2023, The Author(s).

A pilot comparison of fixatives for hookworm real-time polymerase chain reaction

- Bradbury, Richard, Inagaki, Kengo, Singh, Gurbaksh, Agana, Urita, Patterson, Kayla, Malloch, Lacy, Rodriguez, Eduardo, Qvarnstrom, Yvonne, Hobbs, Charlotte

  • Authors: Bradbury, Richard , Inagaki, Kengo , Singh, Gurbaksh , Agana, Urita , Patterson, Kayla , Malloch, Lacy , Rodriguez, Eduardo , Qvarnstrom, Yvonne , Hobbs, Charlotte
  • Date: 2023
  • Type: Text , Journal article
  • Relation: American Journal of Tropical Medicine and Hygiene Vol. 108, no. 2 (2023), p. 335-339
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  • Description: Polymerase chain reaction (PCR) is increasingly used in the diagnosis of soil-transmitted helminth infections. Despite this, few studies have evaluated the impact of different fecal fixatives on the outcome of fecal helminth qPCR analysis, and none have evaluated the effect of commercial parasitology fixatives commonly used in diagnostic laboratories. We fixed dog feces containing Ancylostoma spp. hookworm eggs in zinc polyvinyl alcohol (Zn-PVA) and Total-Fix, and with 70% ethanol (EtOH) as a control. DNA was extracted at timepoints 11, 33, 64, and 94 days and subjected to Ancylostoma spp. quantitative PCR (qPCR). A linear regression model was created to assess the effect of preservative types on the temporal change of qPCR quantification cycle number (Cq) values, accounting for variances among individual animals. Fixation in 70% EtOH least affected Cq values over 94 days. Total-Fix preservation yielded a higher Cq overall, but there was no significant difference compared with 70% EtOH fixation. Fixation in Zn-PVA resulted in significantly (P < 0.001) higher Cq values than 70% EtOH after only 33 days and loss of amplification at 64 days. Consistent with other helminth fixation studies, 70% EtOH performed well in preserving hookworm DNA over 94 days. Total-Fix provided a comparable alternative for qPCR analysis for hookworm. Fixation in Zn-PVA resulted in loss of detectable hookworm DNA at 64 days, as determined by qPCR. Copyright © 2023 The American Society of Tropical Medicine and Hygiene.

Mothering ideology : a qualitative exploration of mothers’ perceptions of navigating motherhood pressures and partner relationships

- Williamson, Tricia, Wagstaff, Danielle, Goodwin, Jane, Smith, Naomi

  • Authors: Williamson, Tricia , Wagstaff, Danielle , Goodwin, Jane , Smith, Naomi
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Sex Roles Vol. 88, no. 1-2 (2023), p. 101-117
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  • Description: Good mother ideology refers to beliefs that women are only ‘good’ mothers if they adhere to the tenets of dominant parenting discourse, such as intensive mothering ideology, which prioritizes children’s needs and child-raising above all else. Undergirded by this ideology, mothers’ attempts to navigate the transition to motherhood are fraught with pressures, and the transition is associated with negative health outcomes for mothers and children; yet existing research gives little attention to the quality or dynamics of the partner relationship as part of this transition. The current study examined motherhood pressure and the impact on partner relationships through individual, semi-structured interviews with 19 mothers living in Australia who were 18 years or older in a heterosexual relationship with at least one child under the age of five. Thematic analysis revealed four key themes: discourses on motherhood: criticisms of mothers and internalised guilt; transformation of identity; entrenchment of gender roles through childrearing; and positive relationship dynamics: supportive fathers and challenging gender roles. This study contributes to the larger body of literature highlighting the complexity of dominant mothering ideology and its entanglement with and impact on partner relationships. Further, this study includes mothers’ perceptions of how they navigate these pressures within the relationship with their partner and the family unit. These findings have implications for programs to support mothers and other caregivers, as well as challenge unrealistic standards for motherhood. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

The effects of α-lactalbumin supplementation and handgrip contraction on soleus motoneuron excitability

- Mackay-Phillips, Karen, Orssatto, Lucas, Polman, Remco, Van der Pols, Jolieke, Trajano, Gabriel

  • Authors: Mackay-Phillips, Karen , Orssatto, Lucas , Polman, Remco , Van der Pols, Jolieke , Trajano, Gabriel
  • Date: 2023
  • Type: Text , Journal article
  • Relation: European Journal of Applied Physiology Vol. 123, no. 2 (2023), p. 395-404
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  • Description: Introduction: We tested two strategies that hypothetically increase serotonin availability (
  • Description: Introduction: We tested two strategies that hypothetically increase serotonin availability (α-lactalbumin consumption and a remote submaximal handgrip contraction) on estimates of persistent inward currents (PICs) amplitude of soleus muscle in healthy participants. Methods: With a randomised, double-blind, and cross-over design, 13 healthy participants performed triangular-shaped ramp contractions with their plantar flexors (20% of maximal torque), followed by a 30-s handgrip sustained contraction (40% of maximal force) and consecutive repeated triangular-shaped contractions. This was performed before and after the consumption of either 40 g of α-lactalbumin, an isonitrogenous beverage (Zein) or an isocaloric beverage (Corn-starch). Soleus motor units discharge rates were analysed from high-density surface electromyography signals. PICs were estimated by calculating the delta frequency (ΔF) of motor unit train spikes using the paired motor unit technique. Results: ΔF (0.19 pps; p = 0.001; d = 0.30) and peak discharge rate (0.20 pps; p < 0.001; d = 0.37) increased after the handgrip contraction, irrespective of the consumed supplement. No effects of α-lactalbumin were observed. Conclusions: Our results indicate that 40 g of α-lactalbumin was unable to modify intrinsic motoneuron excitability. However, performing a submaximal handgrip contraction before the plantar flexion triangular contraction was capable of increasing ΔF and discharge rates on soleus motor units. These findings highlight the diffused effects of serotonergic input, its effects on motoneuron discharge behaviour, and suggest a cross-effector effect within human motoneurons. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. Erratum: Correction to: The effects of α‑lactalbumin supplementation and handgrip contraction on soleus motoneuron excitability - The original version of this article unfortunately contained a mistake. The corrected details are given below for your reading. The author’s name Karen Mackay-Phillips was incorrectly written as Karen Mackay Phillips. In section “Overview”, first sentence should read as “The current study was part of an experiment that has been divided in two parts, where some variables are presented in a companion paper (https:// doi. org/ 10. 1007/ s00421- 022- 05103-1).”. © 2022 Springer-Verlag GmbH Germany, part of Springer Nature.

Psychological, physical, and sexual violence against children in Australian community sport : frequency, perpetrator, and victim characteristics

- Pankowiak, Aurelie, Woessner, Mary, Parent, Sylvie, Vertommen, Tine, Eime, Rochelle, Spaaij, Ramon, Harvey, Jack, Parker, Alexandra

  • Authors: Pankowiak, Aurelie , Woessner, Mary , Parent, Sylvie , Vertommen, Tine , Eime, Rochelle , Spaaij, Ramon , Harvey, Jack , Parker, Alexandra
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Journal of Interpersonal Violence Vol. 38, no. 3-4 (2023), p. 4338-4365
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  • Description: Childhood sport participation is associated with physical, social, and mental health benefits, which are more likely to be realized if the sport environment is safe. However, our understanding of children’s experience of psychological, physical, and sexual violence in community sport in Australia is limited. The aims of this study were to provide preliminary evidence on the extent of experiences of violence during childhood participation in Australian community sport and to identify common perpetrators of and risk factors for violence. The Violence Towards Athletes Questionnaire (VTAQ) was administered online to a convenience sample of Australian adults (>18 years), retrospectively reporting experiences of violence during childhood community sport. Frequencies of experience of violence were calculated and Chi-square tests were conducted to determine differences between genders. In total, there were 886 respondents included in the analysis. Most survey respondents were women (63%) and about a third were men (35%). About 82% of respondents experienced violence in sport as a child. Psychological violence was most prevalent (76%), followed by physical (66%) and sexual (38%) violence. Peers perpetrated the highest rates of psychological violence (69%), and the rates of physical and psychological violence by coaches (both >50%) were also high. Age, sexual orientation, disability, and hours of weekly sport participation as a child were all associated with childhood experience of violence in sport. The rates of interpersonal violence against children in sport were high. This novel data on perpetrators of the violence and the risk factors for experiencing violence provides further context to inform safeguarding strategies in sport. A national prevalence study is recommended to advance our understanding of the childhood experiences of violence in Australian sport. © The Author(s) 2022.

Effects of α-lactalbumin on strength, fatigue and psychological parameters: a randomised double-blind cross-over study

- Mackay-Phillips, Karen, Orssatto, Lucas, Polman, Remco, Van der Pols, Jolieke, Trajano, Gabriel

  • Authors: Mackay-Phillips, Karen , Orssatto, Lucas , Polman, Remco , Van der Pols, Jolieke , Trajano, Gabriel
  • Date: 2023
  • Type: Text , Journal article
  • Relation: European Journal of Applied Physiology Vol. 123, no. 2 (2023), p. 381-393
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  • Description: Purpose: The neurotransmitter serotonin has a strong effect on behaviour and motor control. Regarding motor control, serotonin contributes to the development of fatigue and is also involved in the ability of motor neurones to operate across a large range of forces (gain control). The consumption of tryptophan-rich supplements (such as
  • Description: Purpose: The neurotransmitter serotonin has a strong effect on behaviour and motor control. Regarding motor control, serotonin contributes to the development of fatigue and is also involved in the ability of motor neurones to operate across a large range of forces (gain control). The consumption of tryptophan-rich supplements (such as α-lactalbumin) is of interest because this amino acid is the only precursor for brain serotonin synthesis. Therefore, the purpose of this study was to determine the effects of α-lactalbumin supplementation on neuromuscular performance. Methods: Using a randomised double-blind cross-over design, 16 healthy participants performed plantar flexor and handgrip maximal voluntary contractions, a 30-s submaximal handgrip contraction, and a plantar flexor fatigue protocol before and 90 min after consuming either 40 g of α-lactalbumin, an isonitrogenous beverage (Zein) or an isocaloric beverage (corn-starch). Sleepiness, mood, and cognition were assessed to evaluate any psychological effects. Results: α-Lactalbumin decreased force steadiness by 25% during the sustained submaximal handgrip contraction (p < 0.01) and induced greater fatigue (15% reduction in total torque–time integral, p = 0.01) during the fatigue protocol. These effects were not observed for the other control beverages. No effects were found for maximal or explosive strength, or psychological measurements. Conclusions: 40 g of α-lactalbumin increased handgrip force variability and reduced performance during fatiguing muscle contractions but did not influence brief maximal contractions or psychological parameters in healthy individuals. These findings support the hypothesis that the consumption of α-lactalbumin can increase motor neurone input–output gain and exacerbate central fatigue during sustained maximal exercise. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

The use of an interactive social simulation tool for adults who stutter : a pilot study

- Meredith, Grant, Achterbosch, Leigh, Peck, Blake, Terry, Daniel, Dekker, Evan, Packman, Ann

  • Authors: Meredith, Grant , Achterbosch, Leigh , Peck, Blake , Terry, Daniel , Dekker, Evan , Packman, Ann
  • Date: 2023
  • Type: Text , Journal article
  • Relation: European Journal of Investigation in Health, Psychology and Education Vol. 13, no. 1 (2023), p. 187-198
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  • Description: This study reports a user evaluation of a DVD-based social simulator, developed for people who stutter to potentially gain confidence in using a learned fluency technique. The aim was to examine and evaluate the pilot of the DVD-based social simulator, Scenari-Aid, to inform the development of an online version of the program. Thirty-seven adults who were stuttering were recruited to the study from non-professional groups in Australia. The DVD comprised scenarios with actors in real-life settings that were designed to elicit verbal responses. Participants worked through the scenarios at their own rate and then completed an online survey. The survey comprised 29 statements requiring responses on a 5-point Likert scale and provided information about users’ perceptions of participating in the social simulations. There was high positive agreement among the participants on all statements, the most important being that they perceived the scenarios represented in everyday speaking situations and that they felt immersed in them. Participants also agreed that both their fluency and confidence increased in everyday speaking situations as a result of working through the DVD scenarios. The developers were satisfied that, despite the subjective nature of the findings, the study provided sufficient support for constructing the online version, which is now available to the public free of charge. Further research is needed to provide empirical evidence of the contribution it can make to the efficacy of speech programs for adults who stutter. © 2023 by the authors.

Erds-liouville sets

- Chalebgwa, Taboka, Morris, Sidney

Hybridisation rates, population structure, and dispersal of sambar deer (Cervus unicolor) and rusa deer (Cervus timorensis) in south-eastern Australia

- Hill, Erin, Murphy, Nicholas, Li-Williams, Scarlett, Davies, Christopher, Forsyth, David, Comte, Sebastien, Rollins, Lee, Hogan, Fiona, Wedrowicz, Faye, Crittle, Troy, Thomas, Elaine, Woodford, Luke, Pacioni, Carlo

  • Authors: Hill, Erin , Murphy, Nicholas , Li-Williams, Scarlett , Davies, Christopher , Forsyth, David , Comte, Sebastien , Rollins, Lee , Hogan, Fiona , Wedrowicz, Faye , Crittle, Troy , Thomas, Elaine , Woodford, Luke , Pacioni, Carlo
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Wildlife Research Vol. 50, no. 9 (2023), p. 669-687
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  • Description: Context. Introduced populations of sambar deer (Cervus unicolor) and rusa deer (Cervus timorensis) are present across south-eastern Australia and are subject to local population control to alleviate their negative impacts. For management to be effective, identification of dispersal capability and management units is necessary. These species also readily hybridise, so additional investigation of hybridisation rates across their distributions is necessary to understand the interactions between the two species. Aims. Measure the hybridisation rate of sambar and rusa deer, assess broad-scale population structure present within both species and identify distinct management units for future population control, and measure the likely dispersal capability of both species. Methods. In total, 198 sambar deer, 189 rusa deer, and three suspected hybrid samples were collected across Victoria and New South Wales (NSW). After sequencing and filtering, 14 099 polymorphic single-nucleotide polymorphism (SNP) markers were retained for analysis. Hybridisation rates were assessed before the data were split by species to identify population structure, diversity indices, and dispersal distances. Key results. Across the entire dataset, 17 hybrids were detected. Broad-scale population structure was evident in sambar deer, but not among the sites where rusa deer were sampled. Analysis of dispersal ability showed that a majority of deer movement occurred within 20 km in both species, suggesting limited dispersal. Conclusions. Distinct management units of sambar deer can be identified from the dataset, allowing independent population control. Although broad-scale population structure was not evident in the rusa deer populations, dispersal limits identified suggest that rusa deer sites sampled in this study could be managed separately. Sambar × rusa deer hybrids are present in both Victoria and NSW and can be difficult to detect on the basis of morphology alone. Implications. Genetic analysis can identify broad-scale management units necessary for population control, and estimates of dispersal capability can assist in delineating management units where broad-scale population structure may not be apparent. The negative impacts associated with hybridisation require further investigation to determine whether removal of hybrids should be considered a priority management aim. © 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing.

Do maturation, anthropometrics and leg muscle qualities influence repeated change of direction performance in adolescent boys and girls?

- Giuriato, Matteo, Pellino, Vittoria, Lovecchio, Nicola, Codella, Roberto, Vandoni, Matteo, Talpey, Scott

  • Authors: Giuriato, Matteo , Pellino, Vittoria , Lovecchio, Nicola , Codella, Roberto , Vandoni, Matteo , Talpey, Scott
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Biology of Sport Vol. 40, no. 4 (2023), p. 1033-1038
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  • Description: The ability to change direction rapidly is a key fitness quality especially in invasive sports where young players perform approximately 300 changes of direction in a game. There is currently limited understanding of how anthropometric characteristics and maturation status influence change of direction ability in adolescent. Therefore, the purpose of this investigation is to assess the influence of anthropometrics and maturation status on change of direction ability in young people. The study involved 706 adolescents (367 girls) aged 14-19-year-old attending the same high school in Northern Italy. Stature, body mass, seated height and leg length were measured to determine the anthropometrics and maturation status of the participants. Repeated change of direction ability (10 × 5 m shuttle run test), lower limb power and muscle strength were evaluated using field tests from the Eurofit test battery. Maturity offset was calculated separately for boys and girls, in accord with the equation proposed by Mirwald. Preliminary analysis with 10 × 5 m as a dependent variable and sex and PHV as a fixed factor, suggests a significant difference between sex (p < 0.001; d = 0.35) but not with PHV (p = 0.986; d = 0.000) and interaction PHV × sex (p = 0.836; d = 0.000). Our results suggested that repeated change of direction performance was influenced by anthropometrics, maturation and muscle qualities in adolescent boys and girls. © 2023 Institute of Sport. All rights reserved.

Global diversity and antimicrobial resistance of typhoid fever pathogens : insights from a meta-analysis of 13,000 Salmonella Typhi genomes

- Carey, Megan, Dyson, Zoe, Ingle, Danielle, Amir, Afreenish, Aworh, Mabel, Chattaway, Marie, Chew, Ka, Crump, John, Feasey, Nicholas, Howden, Benjamin, Keddy, Karen, Maes, Mailis, Parry, Christopher, Van Puyvelde, Sandra, Webb, Hattie, Afolayan, Ayorinde, Alexander, Anna, Anandan, Shalini, Andrews, Jason, Ashton, Philip, Basnyat, Buddha, Bavdekar, Ashish, Bogoch, Isaac, Clemens, John, da Silva, Kesia, De, Anuradha, de Ligt, Joep, Diaz Guevara, Paula, Dolecek, Christiane, Greenhill, Andrew

  • Authors: Carey, Megan , Dyson, Zoe , Ingle, Danielle , Amir, Afreenish , Aworh, Mabel , Chattaway, Marie , Chew, Ka , Crump, John , Feasey, Nicholas , Howden, Benjamin , Keddy, Karen , Maes, Mailis , Parry, Christopher , Van Puyvelde, Sandra , Webb, Hattie , Afolayan, Ayorinde , Alexander, Anna , Anandan, Shalini , Andrews, Jason , Ashton, Philip , Basnyat, Buddha , Bavdekar, Ashish , Bogoch, Isaac , Clemens, John , da Silva, Kesia , De, Anuradha , de Ligt, Joep , Diaz Guevara, Paula , Dolecek, Christiane , Greenhill, Andrew
  • Date: 2023
  • Type: Text , Journal article
  • Relation: eLife Vol. 12, no. (2023), p.
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  • Description: Background: The Global Typhoid Genomics Consortium was established to bring together the typhoid research community to aggregate and analyse Salmonella enterica serovar Typhi (Typhi) genomic data to inform public health action. This analysis, which marks 22 years since the publication of the first Typhi genome, represents the largest Typhi genome sequence collection to date (n=13,000). Methods: This is a meta-analysis of global genotype and antimicrobial resistance (AMR) determinants extracted from previously sequenced genome data and analysed using consistent methods implemented in open analysis platforms GenoTyphi and Pathogenwatch. Results: Compared with previous global snapshots, the data highlight that genotype 4.3.1 (H58) has not spread beyond Asia and Eastern/Southern Africa; in other regions, distinct genotypes dominate and have independently evolved AMR. Data gaps remain in many parts of the world, and we show the potential of travel-associated sequences to provide informal ‘sentinel’ surveillance for such locations. The data indicate that ciprofloxacin non-susceptibility (>1 resistance determinant) is widespread across geographies and genotypes, with high-level ciprofloxacin resistance (=3 determinants) reaching 20% prevalence in South Asia. Extensively drug-resistant (XDR) typhoid has becomedominant in Pakistan (70% in 2020) but has not yet become established elsewhere. Ceftriaxone resistance has emerged in eight non-XDR genotypes, including a ciprofloxacin-resistant lineage (4.3.1.2.1) in India. Azithromycin resistance mutations were detected at low prevalence in South Asia, including in two common ciprofloxacin-resistant genotypes. Conclusions: The consortium’s aim is to encourage continued data sharing and collaboration to monitor the emergence and global spread of AMR Typhi, and to inform decision-making around the introduction of typhoid conjugate vaccines (TCVs) and other prevention and control strategies. © Carey et al. **Please note that there are multiple authors for this article therefore only the name of the first 30 including Federation University Australia affiliate “Andrew Greenhill” is provided in this record**

Benchmarking Australian enabling programs for a national framework of standards, a practice report

- Davis, Charmaine, Cook, Chris, Syme, Suzi, Dempster, Sarah, Duffy, Lisa, Hattam, Sarah, Lambrinidis, George, Lawson, Kathy, Levy, Stuart

  • Authors: Davis, Charmaine , Cook, Chris , Syme, Suzi , Dempster, Sarah , Duffy, Lisa , Hattam, Sarah , Lambrinidis, George , Lawson, Kathy , Levy, Stuart
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Student Success Vol. 14, no. 2 (2023), p. 41-49
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  • Description: Enabling education programs in Australia assist students, who would otherwise have been excluded from higher education, to transition into undergraduate study. These programs emerged independently in response to the needs of individual universities and the varying cohorts of students they serve. The exclusion of these programs from the Australian Qualifications Framework (AQF) has meant they remain unregulated, with no national framework for standards. The development of academic standards is a dynamic, consensus driven process, and benchmarking provides a method through which academics from across institutions can work in partnership to reach shared understandings and improve and align practices. This practice report outlines the results of the first comprehensive cross-institutional benchmarking project involving nine Australian universities and demonstrates there is shared understanding of the standards of enabling programs between institutions. These findings will contribute to the establishment of national standards for enabling programs in Australia. ©The Author/s 2023.

Simplifying qualitative case study research methodology : a step-by-step guide using a palliative care example

- Miller, Elizabeth, Porter, Joanne, Barbagallo, Michael

  • Authors: Miller, Elizabeth , Porter, Joanne , Barbagallo, Michael
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Qualitative Report Vol. 28, no. 8 (2023), p. 2363-2379
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  • Description: Qualitative case study research can be a helpful methodology when conducting health research. However, it can be overlooked or dismissed as a possible methodological choice due to different epistemological positionings by case study theorists and often confusing and contradictory definitions and terminology. Much has been written about case studies, but it takes time to wade through volumes of often philosophically and methodologically dense material to locate a theorist who presents case study research at a depth the novice researcher can understand. Case study research literature may offer a condensed summary of processes but often needs more theoretical detail. Therefore, discerning where to begin can be time-consuming, frustrating, and overwhelming. There are very few qualitative case study protocols and no step-by-step guide describing the planning and decision-making process within nursing. To address the need for clarity, this article endeavors to set out how to conduct a qualitative case study in a step-by-step guide using the approaches of Merriam and Stake as the foundation using a palliative care setting as an application example. It contributes to knowledge and practice by developing a foundational understanding of case study methodology in the hope that novice researchers will consider case study research as a methodological choice for their study and conduct it in a trustworthy and rigorous manner. Copyright 2023: Elizabeth M. Miller, Joanne E. Porter, Michael S. Barbagallo, and Nova Southeastern University.

Disseminating sleep education to graduate psychology programs online : a knowledge translation study to improve the management of insomnia

- Meaklim, Hailey, Meltzer, Lisa, Rehm, Imogen, Junge, Moira, Monfries, Melissa, Kennedy, Gerard, Bucks, Romola, Graco, Marnie, Jackson, Melinda

  • Authors: Meaklim, Hailey , Meltzer, Lisa , Rehm, Imogen , Junge, Moira , Monfries, Melissa , Kennedy, Gerard , Bucks, Romola , Graco, Marnie , Jackson, Melinda
  • Date: 2023
  • Type: Text , Journal article
  • Relation: Sleep Vol. 46, no. 10 (2023), p.
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  • Description: Study Objectives: Despite the negative impact of poor sleep on mental health, evidence-based insomnia management guidelines have not been translated into routine mental healthcare. Here, we evaluate a state-wide knowledge translation effort to disseminate sleep and insomnia education to graduate psychology programs online using the RE-AIM (reach, effectiveness, adoption, implementation, and maintenance) evaluation framework. Methods: Using a non-randomized waitlist control design, graduate psychology students attended a validated 6-hour online sleep education workshop delivered live as part of their graduate psychology program in Victoria, Australia. Sleep knowledge, attitudes, and practice assessments were conducted pre- and post-program, with long-term feedback collected at 12 months. Results: Seven out of ten graduate psychology programs adopted the workshop (adoption rate = 70%). The workshop reached 313 graduate students, with a research participation rate of 81%. The workshop was effective at improving students’ sleep knowledge and self-efficacy to manage sleep disturbances using cognitive behavioral therapy for insomnia (CBT-I), compared to the waitlist control with medium-to-large effect sizes (all p < .001). Implementation feedback was positive, with 96% of students rating the workshop as very good-to-excellent. Twelve-month maintenance data demonstrated that 83% of students had used the sleep knowledge/skills learned in the workshop in their clinical practice. However, more practical training is required to achieve CBT-I competency. Conclusions: Online sleep education workshops can be scaled to deliver cost-effective foundational sleep training to graduate psychology students. This workshop will accelerate the translation of insomnia management guidelines into psychology practice to improve sleep and mental health outcomes nationwide. © The Author(s) 2023. Published by Oxford University Press on behalf of Sleep Research Society.