The pollution of the planet by microplastics is significantly cutting food supplies by damaging the ability of plants to photosynthesise, according to a new assessment.

The analysis estimates that between 4% and 14% of the world’s staple crops of wheat, rice and maize is being lost due to the pervasive particles. It could get even worse, the scientists said, as more microplastics pour into the environment.

About 700 million people were affected by hunger in 2022. The researchers estimated that microplastic pollution could increase the number at risk of starvation by another 400 million in the next two decades, calling that an “alarming scenario” for global food security.

Other scientists called the research useful and timely but cautioned that this first attempt to quantify the impact of microplastics on food production would need to be confirmed and refined by further data-gathering and research.

The annual crop losses caused by microplastics could be of a similar scale to those c

Childhood maltreatment exposure (CME) increases the risk of adverse long-term health consequences for the exposed individual. Animal studies suggest that CME may also influence the health and behaviour in the next generation offspring through CME-driven epigenetic changes in the germ line. Here we investigated the associated between early life stress on the epigenome of sperm in humans with history of CME. We measured paternal CME using the Trauma and Distress Scale (TADS) questionnaire and mapped sperm-borne sncRNAs expression by small RNA sequencing (small RNA-seq) and DNA methylation (DNAme) in spermatozoa by reduced-representation bisulfite sequencing (RRBS-seq) in males from the FinnBrain Birth Cohort Study. The study design was a (nested) case-control study, high-TADS (TADS ≥ 39, n = 25 for DNAme and n = 14 for small RNA-seq) and low-TADS (TADS ≤ 10, n = 30 for DNAme and n = 16 for small RNA-seq). We identified 3 genomic regions with differential methylation between low and high-

Abstract Objective: To investigate whether the proportion of running-related knee injuries differed in normal-weight, overweight, and obese runners.

Design: Comparative study.

Methods: Data from 4 independent prospective studies were merged (2612 participants). The proportion of running-related knee injuries out of the total number of running-related injuries was calculated for normal-weight, overweight, and obese runners, respectively. The measure of association was absolute difference in proportion of running-related knee injuries with normal-weight runners as the reference group.

Results: A total of 571 runners sustained a running-related injury (181 running-related knee injuries and 390 running-related injuries in other anatomical locations). The proportion of running-related knee injuries was 13% lower (95% confidence interval: -22%, -5%; P = .001) among overweight runners compared with normal-weight runners. Similarly, the proportion of running-related knee injuries was 12% lo

A major milestone in quantum computing has been achieved after researchers at the University of Oxford built a scalable quantum supercomputer capable of quantum teleportation.

The breakthrough centres on the so-called scalability problem of quantum computing, with the researchers claiming it will allow the next-generation technology to be realised on an industry-disrupting level.

The field of quantum computing has been around for decades, but only in recent years have significant advances been made towards realising them on a practical scale.

Utilising the properties of quantum physics, these next-generation machines replace traditional bits – the ‘ones’ and ‘zeros’ used to store and transfer digital information – with quantum bits (qubits), which can act as a one and a zero at the same time through a phenomenon known as superposition.

This give quantum computers the potential to be orders of magnitude more powerful than today’s state-of-the-art supercomputers that use conventional