Macquarie University

A robust model for improving digital marketing using sentiment analysis and two-agent off-policy proximal policy optimization

Understanding consumer sentiment is important in digital marketing because it strongly influences brand perception and purchasing decisions. This paper proposes a novel two-agent off-policy proximal policy optimization (PPO) framework. Unlike standard multi-agent reinforcement le...

Evidence from alkaline magmatism for fluorine- and bromine-enriched cratonic mantle roots

The base of cratonic lithospheric mantle (cratonic root) is a key volatile-rich reservoir (e.g., carbon and halogens), formed through long-term metasomatism by deep-derived incipient melts, whose reactivation has been proposed to drive climatic change over the course of Earth his...

MalTotal: Cost-Effective and Language-Agnostic Malicious Code Poisoning Detection for Millions of Repositories

The widespread adoption of open source software (OSS) has introduced significant security risks, with malicious code poisoning attacks increasingly targeting public package registries and open-source platforms. Existing detection approaches, including heuristic-, learning-, and L...

Antimicrobial resistance in the monotreme microbiome

Context Antimicrobial resistance (AMR) is a global health crisis requiring a One Health approach that recognises the interconnectedness of people, animals and the environment. Since wide adoption of the One Health framework, wildlife species have been identified as important pote...

Stacked Hybrid Recurrent Convolutional Neural Network Reconstruction of X-Ray Influence on 21 cm Brightness Temperature

Abstract X-ray photons substantially affect the thermal and ionization states of the intergalactic medium during the epoch of reionization (EoR), thereby significantly influencing the 21 cm line observables, such as its sky-averaged (global) brightness temperature. Nevertheless,...

AccLock: Unlocking Identity with Heartbeat Using In-Ear Accelerometers

The widespread use of earphones has enabled various sensing applications, including activity recognition, health monitoring, and context-aware computing. Among these, earphone-based user authentication has become a key technique by leveraging unique biometric features. However, e...

Energy and spatial spillovers: How renewable and non-renewable energy impact the environment?

Atmospheric emissions in one location can significantly affect adjacent regions, creating spatial dependencies. If ignored, it may biased empirical estimates of environmental degradation. This study employs spatial econometric techniques to measure the indirect (spillover) effect...

Body Weight in Relation to the Effectiveness of Intravenous Alteplase in Acute Ischemic Stroke: The ENCHANTED Trial

BACKGROUND: The prognostic significance of body weight in patients receiving thrombolysis for acute ischemic stroke remains uncertain. This study aimed to determine whether body weight modifies the comparative effects of low- versus standard-dose intravenous alteplase and to eval...

Morphosyntactic processing of complex nonwords in sentence context: An ERP study

The current study aimed to understand morphosyntactic processing of suffixes in sentence context. We employed Event-Related Potentials (ERPs) to assess how the morphosyntactic features carried by suffixes are integrated in the syntactic structure of the sentence during reading. T...

Prime fractals: palindromes, primes and base-10 Euler pseudoprimes

The prime fractal of N/q pairs the first q − 1 decimal digits of N/q around the middle and records their differences. We show that it is a palindrome for every N coprime to q exactly when q is prime, a base-10 Euler pseudoprime, or 99; equivalently, when 10^((q−1)/2) ≡ ±1 (mod q)...

Prime fractals: palindromes, primes and base-10 Euler pseudoprimes

The prime fractal of N/q pairs the first q − 1 decimal digits of N/q around the middle and records their differences. We show that it is a palindrome for every N coprime to q exactly when q is prime, a base-10 Euler pseudoprime, or 99; equivalently, when 10^((q−1)/2) ≡ ±1 (mod q)...

All-PbS colloidal quantum dot tandem solar cells with an ITO interlayer: A combined simulation and experimental study

Colloidal quantum dot (CQD) solar cells hold great promise for applications in single-junction and tandem solar cells owing to their adaptable bandgaps. However, power conversion efficiencies (PCEs) of their tandem solar cells still lag far behind their single-junction counterpar...

Integrating Synthetic Biology, Systems Biology, and Bioprocessing to Advance Terpene Production in Cyanobacteria

Abstract Cyanobacteria act as efficient “solar-powered” cell factories, converting CO2 and light into valuable products while thriving in seawater or wastewater. Cyanobacteria are attractive hosts for terpenoid bioproduction because they natively produce terpene precursors. Our r...

On-demand therapies–emergency medication or daily routine?

Abstract Fluctuations represent a major therapeutic challenge in Parkinson’s disease (PD) and become increasingly prevalent with disease progression. While oral and device-aided therapies (DAT) improve symptom control, patients continue to experience disabling OFF episodes, in pa...

Extracellular vesicles in breast cancer metastasis: functional insights and advances in single-EV analysis

Abstract Breast cancer (BC) metastasis remains a leading cause of mortality despite significant advances in screening and diagnosis. Extracellular vesicles (EVs), secreted by all living cells, carry biologically active cargo such as RNAs and proteins, playing a crucial role in ce...

Food Insecurity Among University Students: Evidence from Three Cross-Sectional Surveys, 2020–2024

Background/Objectives: Food insecurity among university students is a complex yet often overlooked issue. This issue has been exacerbated by inflation, higher living costs, and the COVID-19 pandemic. This study aimed to examine the change in the prevalence of food insecurity amon...

A Primer on Blue Accounting and Finance

This paper examines the relationship between blue accounting and blue finance and its implications for sustainable ocean‐based development. Using a conceptual review of the United Nations Sustainable Blue Economy Finance Principles, major financial instruments, and selected cases...

Conservation genetics of the Brolga (Antigone rubicunda) across eastern Australia reveals genetic structure and potential loss of adaptive capacity

Abstract Globally, urban expansion and agriculture have driven widespread wetland degradation and loss. The Brolga ( Antigone rubicunda ), a wetland-dependent crane species distributed across northern and eastern Australia, is threatened in south-eastern states. In Victoria, cens...

Investigation into the structural performance of passing-through plate-to-HSS 3D-cut welded joints

Hollow Structural Sections (HSS) are widely used members in the construction sector due to their strength, efficiency, and versatility. However, their complex connections require considerable construction effort and resources. To promote the application of these sections, a new f...

Evidence for Relationship Between Speech Perception in Noise and Spectrotemporal Modulation Processing in Children With Mild Bilateral Hearing Loss: A Functional Near-Infrared Spectroscopy Study

OBJECTIVES: Children with mild bilateral hearing loss (CHL), defined as having thresholds between 20 and 40 dB HL, experience difficulties conversing in adverse acoustic conditions with background noise, despite having near-normal speech perception in quiet. Mixed evidence of hea...