In cells, proteins rapidly self-assemble into sophisticated nanomachines. Bioinspired self-assembly approaches, such as DNA origami, have been used to achieve complex three-dimensional (3D) nanostructures and devices. However, current synthetic systems are limited by low yields in hierarchical assembly and challenges in rapid and efficient reconfiguration between diverse structures.
View Article and Find Full Text PDFBiol Psychiatry Cogn Neurosci Neuroimaging
November 2024
Meditation is a family of ancient and contemporary contemplative mind-body practices that can modulate psychological processes, awareness, and mental states. Over the last 40 years, clinical science has manualised meditation practices and designed various meditation interventions (MIs), that have shown therapeutic efficacy for disorders including depression, pain, addiction, and anxiety. Over the past decade, neuroimaging has examined the neuroscientific basis of meditation practices, effects, states, and outcomes for clinical and non-clinical populations.
View Article and Find Full Text PDFUnderstanding exercise metabolism and the relationship with volatile organic compounds (VOCs) holds potential in both health care and sports performance. Exercise metabolism can be investigated using whole body exercise testing () or through the culture and subsequent electrical pulse stimulation (EPS) of myotubes (). This research investigates the novel headspace (HS) analysis of EPS skeletal muscle myotubes.
View Article and Find Full Text PDFBelief in powerful supernatural agents that enforce moral norms has been theoretically linked with cooperative altruism and prosociality. Correspondingly, prior research reveals an implicit association between atheism and extreme antisociality (e.g.
View Article and Find Full Text PDFWe report efforts to quantify the loading of cell-sized lipid vesicles using in-line digital holographic microscopy. This method does not require fluorescent reporters, fluorescent tracers, or radioactive tracers. A single-color LED light source takes the place of conventional illumination to generate holograms rather than bright field images.
View Article and Find Full Text PDFDominique-Jean Larrey was a prominent French surgeon who rose to fame during the age of the Napoleonic Wars. During his service in the French military, he developed dozens of medical innovations. Most important of all were his improvements to the evacuation of the wounded from the battlefield, triage of the wounded, and rapid surgical intervention.
View Article and Find Full Text PDFAtopic dermatitis results in diminished barrier function and altered production of antimicrobial peptides. Dendritic epidermal T cells (DETCs) play an important role in the wound repair and inflammation process. Our previous work identified an IL-4-dependent loss of DETCs in Stat6VT mice and in the MC903-induced skin inflammation mouse model.
View Article and Find Full Text PDFLatent fingerprints at crime scenes are frequently recovered using forensic gel-lifters, which can help to preserve the crime scene and to enhance visualisation of traces such as blood or paint. In addition to providing fingerprint ridge detail, additional chemical information can also be recovered from gel lifts that may prove pertinent to an investigation. However, while DNA and metal ions have been shown to be able to be detected in gel-lifted fingerprints, the determination of other types of chemical information such as the presence of drugs in gel-lifted prints has not been previously shown.
View Article and Find Full Text PDFThe mechanical resilience of the knee meniscus is provided by a group of structural proteins in the extracellular matrix. Aging can alter the quantity and molecular structure of these proteins making the meniscus more susceptible to debilitating tears. In this study, we determined the effect of aging on the quantity of structural proteins and collagen crosslinks in human lateral meniscus, and examined whether the quantity of these molecules was predictive of tensile toughness (area under the stress-strain curve).
View Article and Find Full Text PDFThe ancient Egyptian pharaoh Senusret III was a legend to both his contemporaries and his descendants: an ideal of kingly power whose legacy of control and intimidation was remembered for centuries. Of particular note is the unique macrotia that the king's statues display. In this paper, we discuss possible etiologies of Senusret's unique presentation and ultimately conclude that Senusret's immortalized features were likely rooted in propaganda rather than a medical cause.
View Article and Find Full Text PDFNullomers are the shortest strings of absent amino acid (aa) sequences in a species or group of species. Primes are those nullomers that have not been detected in the genome of any species. 9S1R is a 5-aa peptide prime sequence attached to 5-arginine aa, used to treat triple negative breast cancer (TNBC) in an in vivo mouse model.
View Article and Find Full Text PDFOpen Forum Infect Dis
November 2023
Background: To investigate the impact of the M184V/I mutation on virologic response to dolutegravir plus lamivudine (DTG + 3TC) in suppressed-switch populations, a meta-analysis was performed using virologic outcomes from people with human immunodeficiency virus type 1 (PWH) with and without M184V/I before DTG + 3TC switch in real-world studies identified via systematic literature review. Sensitivity analyses were performed using data from PWH with M184V/I in interventional studies identified via targeted literature review.
Methods: Single-arm meta-analyses using common- and random-effects models were used to estimate proportions of PWH with virologic failure (VF) among real-world populations with and without M184V/I and interventional study participants with M184V/I at 24, 48, and 96 weeks.
The 2002 hostage crisis at a Moscow theater transfixed the attention of the world. While the initial assault, led by Spetsnaz commandos, successfully secured the building, the Russian security force's utter failure at coordinating with medical services led to the preventable deaths of over 100 hostages.
View Article and Find Full Text PDFAlaska is one of the most seismically active regions of the world. Coincidentally, the state has also experienced dramatic impacts of climate change as it is warming at twice the rate of the rest of the United States. Through mechanisms such as permafrost thaw, water table fluctuation, and melting of sea ice and glaciers, climatic-driven changes to the natural and built-environment influence the seismic response of infrastructure systems.
View Article and Find Full Text PDFEpidemics of infectious diseases posing a serious risk to human health have occurred throughout history. During recent epidemics there has been much debate about policy, including how and when to impose restrictions on behaviour. Policymakers must balance a complex spectrum of objectives, suggesting a need for quantitative tools.
View Article and Find Full Text PDFFrom 1949 to 1950, an acute epidemic of schistosomiasis struck several elite units of the People's Liberation Army during the Chinese Civil War that were preparing for an amphibious invasion of Taiwan. The crucial delay brought by the sudden outbreak of the disease may have cost communist forces control of the strategic island, changing the geopolitical calculus of the Pacific in the decades since.
View Article and Find Full Text PDFIntroduction: Open science initiatives have enabled sharing of large amounts of already collected data. However, significant gaps remain regarding how to find appropriate data, including underutilized data that exist in the long tail of science. We demonstrate the NeuroBridge prototype and its ability to search PubMed Central full-text papers for information relevant to neuroimaging data collected from schizophrenia and addiction studies.
View Article and Find Full Text PDFHéctor Pérez García's transformative leadership in Hispanic civil rights within the U.S. remains an integral topic of academic discussion.
View Article and Find Full Text PDFPhilos Trans R Soc Lond B Biol Sci
November 2023
Successful climate change adaptation depends on the spread and maintenance of adaptive behaviours. Current theory suggests that the heterogeneity of metapopulation structure can help adaptations diffuse throughout a population. In this paper, we develop an agent-based model of the spread of adaptations in populations with minority-majority metapopulation structure, where subpopulations learn more or less frequently from their own group compared to the other group.
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