Publications by authors named "Orellana L"

Objectives: To describe sociodemographic characteristics and comprehensive day-to-day care and support needs of older Victorians requiring government-funded home-based aged-care, and to explore associations between vulnerability factors and complexity indicators in this population.

Methods: A population-based observational study was conducted using de-identified, routinely collected aged-care assessment data for Victorians approved for a Home Care Package (HCP) between January 2019 and June 2022.

Results: The study population (n = 94,975 individuals), approved for one of four HCP levels (Levels 1 (5%), 2 (38%), 3 (34%) or 4 (24%)), was aged 82 years on average (SD 7.

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  • During the COVID-19 pandemic, Melbourne, Australia, faced extended lockdowns, prompting a study on children's health in 2022 compared to pre-pandemic data from 2019.
  • The study found that primary school children in 2022 had higher rates of overweight and obesity, lower physical activity levels, and poorer diet quality compared to 2019.
  • Results indicate a decline in health-related quality of life among children post-lockdown, highlighting the need for ongoing monitoring and interventions to address rising childhood obesity.
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The broiler breeder industry is facing a problem with fertility, hatchability, and the number of broiler breeder eggs produced per hen. The supplementation of trace minerals such as zinc, manganese, and copper in broiler breeder diets has been previously linked to an increase in eggshell quality, which may lead to increased fertility, hatchability, and chick quality. The objective of this study was to explore the effect of amino-acid complexed mineral supplementation on eggshell quality, fertility, hatchability, chick quality, and shell translucency.

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Introduction: Research on work-family dynamics during the COVID-19 pandemic shows that family demands increased for workers, particularly those with children. This heightened family-to-work conflict negatively affects the subjective well-being of parents and their children. However, these outcomes have been mainly examined on individuals without considering the family as the unit of analysis.

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Objective: To investigate the associations between psychological well-being, measured with the Postnatal Well-being in Transition (PostTrans) Questionnaire, and diabetes distress among mothers with type 1 or type 2 diabetes.

Method: Eighty-two postnatal women completed a cross-sectional survey. The survey included the Diabetes Distress Scale, and the PostTrans Questionnaire to assess the psychosocial well-being of women transitioning to motherhood.

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  • - Members of the phylum Verrucomicrobiota are important to ecosystems but often go unrecognized in databases due to their low abundance and difficulty in isolation.
  • - This study focused on the family MB11C04 found in North Sea spring blooms, revealing that their populations increase towards the end of these blooms and identifying their capability to break down complex sugars.
  • - Two new genera and species were introduced (Seribacter and Chordibacter), along with a proposed new family name (Seribacteraceae), highlighting the ecological roles and metabolic potential of these microorganisms.
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  • This study examined how sodium hyperhydration affects heat and cardiovascular strain, as well as exercise performance, in female athletes during different phases of their menstrual cycle.
  • Twelve endurance-trained women participated in trials where they consumed either sodium or a placebo before exercising in a hot environment.
  • Results showed that sodium hyperhydration improved performance and body mass, especially during the menstrual cycle's Phase 4, suggesting it may help manage heat stress during prolonged exercise when fluid access is limited.
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Objectives: Evaluate RESPOND, a community-based systems intervention to prevent childhood obesity and non-communicable diseases (NCD).

Study Design: Cluster randomized trial of building community capacity to use systems science for child obesity and NCD prevention in 10 local government areas in northeast Victoria, Australia. Four-year stepped wedge trial, adapted due to COVID-19 restrictions METHODS: Cluster randomized trial of building community capacity to use systems science for child obesity and NCD prevention in 10 local government areas in northeast Victoria, Australia.

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Stepped-wedge cluster-randomized trials (SW-CRTs) offer advantages for implementation research in healthcare and have been increasingly utilised in the oncology setting. Cancer-related SW-CRTs need to be robust to deliver impactful trial outcomes and support effective translation into practice. This review aimed to examine the application of the SW-CRT design in oncology settings including the trial design features and protocol deviations, the interventions tested, and the implementation aspects of those interventions.

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  • * This review analyzed research on psychological and mind-body interventions to alleviate symptoms and improve quality of life for those in perimenopause and postmenopause stages, using various data sources.
  • * The findings support effective therapeutic options like cognitive behavioral therapy and yoga, advocating for a culturally responsive, multimodal online care model to ensure broader access and equity in menopause management.
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  • Agricultural pests directly harm crops and can also indirectly damage them by spreading harmful pathogens, affecting crop yield and quality.
  • Mites, especially the two-spotted spider mite, are a significant concern in agriculture due to their widespread infestation of numerous plant species and potential contributions to agricultural losses.
  • The study aimed to explore the virome of these mites using RNA sequencing, uncovering 20 viral sequences, including new and related strains that could impact food security and complicate pest management strategies.
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Objective: In this paper, we examined whether there are inequalities in access to food retail (by type and healthiness) across local government areas (LGA) in Greater Melbourne and by LGA grouped based on their distance from the central business district and Growth Area designation. We also examined whether these inequalities persisted over time.

Design: This is a secondary analysis of a repeated cross-sectional census of food outlets collected at four time points (2008, 2012, 2014 and 2016) across 31 LGA.

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Microbial communities in marine sediments represent some of the densest and most diverse biological communities known, with up to a billion cells and thousands of species per milliliter. Among this taxonomic diversity, the class Acidimicrobiia, within the phylum Actinomycetota, stands out for its consistent presence, yet its limited taxonomic understanding obscures its ecological role. We used metagenome-assembled genomes from a 5-year Arctic fjord sampling campaign and compared them to publicly available Acidimicrobiia genomes using 16S rRNA gene and whole-genome phylogenies, alongside gene prediction and annotation to study their taxonomy and genomic potential.

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With the COVID-19 pandemic, behavioural scientists aimed to illuminate reasons why people comply with (or not) large-scale cooperative activities. Here we investigated the motives that underlie support for COVID-19 preventive behaviours in a sample of 12,758 individuals from 34 countries. We hypothesized that the associations of empathic prosocial concern and fear of disease with support towards preventive COVID-19 behaviours would be moderated by trust in the government.

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The main objective of this study was to examine the actor and partner effects between Perceived Workplace Support for Families (PWSFs) and family support (PFS), diet quality, and satisfaction with food-related life (SWFoL) in households with both parents working and adolescents, along with the role of the three family members' diet quality as a mediator. During the second year of the pandemic in Chile, 860 dual-earner parents of different sexes and their adolescent child (average age 13 years, with 50.7% being male) were recruited from two cities.

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Study Objectives: The Multiple Sleep Latency Test (MSLT) is a key diagnostic component in the diagnosis of central disorders of hypersomnolence. Due to time constraints, it is common practice to wake patients at a standard time from overnight polysomnography (PSG) prior to the MSLT. This has the potential to influence MSLT results due to sleep deprivation.

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Background: Women Centred Care: Strategic directions for Australian maternity services (the Strategy), released in November 2019, provides national guidance on effective maternity care provision. The Strategy is structured around four core values (safety, respect, choice, and access) underpinning twelve woman-centred care principles.

Aim: To explore whether the experiences of women who accessed Australian maternity services were aligned with the Strategy's values and principles.

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One of the most hostile marine habitats on Earth is the surface of the South Pacific Gyre (SPG), characterized by high solar radiation, extreme nutrient depletion, and low productivity. During the SO-245 "UltraPac" cruise through the center of the ultra-oligotrophic SPG, the marine alphaproteobacterial group AEGEAN169 was detected by fluorescence in situ hybridization at relative abundances up to 6% of the total microbial community in the uppermost water layer, with two distinct populations (Candidatus Nemonibacter and Ca. Indicimonas).

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Introduction: Over 50% of people affected by cancer report unmet support needs. To address unmet information and psychological needs, non-government organisations such as Cancer Councils (Australia) have developed state-based telephone cancer information and support services. Due to competing demands, evidence of the value of these services is needed to ensure that future investment makes the best use of scarce resources.

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Background: The prevalence and characteristics of household material hardship (HMH) in families of children with advanced cancer and its association with parent distress are unknown and herein described.

Methods: Parents of children aged ≥2 years with advanced cancer at five cancer centers completed baseline surveys as part of the PediQUEST Response trial. HMH (housing, energy, and food) was operationalized as binary (≥1 HMH domains), ordinal (zero, one, or two or more HMH domains), and housing based (none, nonhousing [food and/or energy], only housing, or housing + other).

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Purpose: To describe adherence to sustainable healthy diets among a sample of 958 Chilean pre-schoolers (3-6 years) and explore associations between adherence and child and maternal sociodemographic and anthropometric characteristics.

Methods: Children's adherence to sustainable healthy diets was calculated from single multiple-pass 24-h dietary recalls using the Planetary Health Diet Index for children and adolescents (PHDI-C). Higher PHDI-C scores (max score = 150 points) represent greater adherence.

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Phages play an essential role in controlling bacterial populations. Those infecting Pelagibacterales (SAR11), the dominant bacteria in surface oceans, have been studied in silico and by cultivation attempts. However, little is known about the quantity of phage-infected cells in the environment.

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  • * This study aimed to assess the percentage of blood gas tests with valid clinical indications before and after a targeted educational intervention, while also evaluating the impact of these tests on sleep interruption for patients.
  • * Results showed that though the total number of tests per patient remained unchanged post-intervention, there was a significant increase in tests justified by valid clinical indications, rising from 49.0% to 59.7% after the educational program.
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