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Regional hyperconnectivity in the medial temporal lobes as a maladaptive mechanism for colorectal cancer-related cognitive decline
Selective reduction in epitaxial SrFe0.5Co0.5O2.5 and its reversibility
The impact of plasma-activated water and selenium nanoparticle solution on the shelf life of Mandarin cv. Orlando Tangelo in storage
RKIP regulates bone marrow macrophage differentiation to mediate osteoclastogenesis and H-type vessel formation
Virtual exposure to natural versus urban environments: a pilot study on impacts on self-compassion, self-protection, and self-criticism
High-throughput investigation of cyclin docking interactions reveals the complexity of motif binding determinants
Effects of open-label placebos across populations and outcomes: an updated systematic review and meta-analysis of randomized controlled trials
Abstract This work synthesizes and updates findings from previous systematic-reviews and meta-analyses on open-label placebos (OLPs). For the first time, it directly tests whether OLPs differ in effects between clinical and non-clinical samples, and between self-report and objective outcomes. We searched eight databases up to November 9, 2023, and included 60 randomized controlled trials (RCTs), compromising 63 separate comparisons. OLPs yielded a small positive effect across various health-related outcomes (k = 63, n = 4554, SMD = 0.35, CI 95% = 0.26; 0.44, p < 0.0001, I2 = 53%). The effect differed between clinical (k = 24, n = 1383, SMD = 0.47) and non-clinical samples (k = 39, n = 3171, SMD = 0.29; Q = 4.25, p < 0.05), as well as between self-reported (k = 55, n = 3919, SMD = 0.39) and objective outcomes (k = 17, n = 1250, SMD = 0.09; Q = 7.24, p < 0.01). Neithter the level of suggestiveness nor the type of control moderated the effect. These findings confirm that OLPs are effective for both clinical and non-clinical samples—particularly when effects are assessed via self-reports.
Single electron interference and capacitive edge mode coupling generates ϕ0/2 flux periodicity in Fabry-Pérot interferometers
Long spin lifetimes of charge carriers in rubrene crystals due to fast transient-localization motion
Abstract Field-induced electron spin resonance provides valuable insights into the interplay between spin and charge dynamics in organic semiconductors. We apply this technique to ion-gel-gated capacitors and conventional field-effect transistors to study the temperature-dependent carrier dynamics of high-mobility rubrene single-crystals. Unlike previous measurements on other molecular and polymer semiconductors, we observe remarkably long spin relaxation times—on the order of microseconds—persisting from room temperature down to 15 K. Such long relaxation times are caused by the rapid transient-localization motion of charge carriers, which induces efficient motional narrowing. Additionally, by leveraging the high injection efficiency of ion-gel-gated devices, we observe spin lifetimes shortening at high carrier concentrations. This is attributed to emerging spin-spin dipolar interactions and can be modelled using an approach adapted from fluid-phase nuclear magnetic resonance. Our work demonstrates that field-induced electron spin resonance provides a powerful probe of the transient-localization physics of high-mobility molecular crystals.
Watch a human embryo implant itself — with brute force
Respiration defects limit serine synthesis required for lung cancer growth and survival
Author Correction: Colistin enhances caspofungin antifungal efficacy against Aspergillus fumigatus by modulating calcium homeostasis and stress responses
Controversial climate report from Trump team galvanizes scientists into action
BMI1 regulates human erythroid self-renewal through both gene repression and gene activation
Conserved nucleocytoplasmic density homeostasis drives cellular organization across eukaryotes
Abstract The confinement of macromolecules has profound implications for cellular biochemistry. It generates environments with specific physical properties affecting diffusion, macromolecular crowding, and reaction rates. Yet, it remains unknown how intracellular density distributions emerge and affect cellular physiology. Here, we show that the nucleus is less dense than the cytoplasm and that living systems establish a conserved density ratio between these compartments due to a pressure balance across the nuclear envelope. Nuclear transport establishes a specific nuclear proteome that exerts a colloid osmotic pressure, which, assisted by chromatin pressure, increases nuclear volume. During C. elegans development, the nuclear-to-cytoplasmic density ratio is robustly maintained even when nuclear-to-cytoplasmic volume ratios change. We show that loss of density homeostasis correlates with altered cell functions like senescence and propose density distributions as key markers in pathophysiology. In summary, this study reveals a homeostatic coupling of macromolecular densities that drives cellular organization and function.