Chinese Academy of Sciences

Prism-Slice h-star Polynomials: Interlacing Through Reduced Level Five and a Level-Six Counterexample

Let c be a positive integer capacity vector with total capacity C, let 1 ≤ k ≤ C − 1, and put m = min{k, C − k}. We prove both clauses of the prism-slice conjecture when m ≤ 5: the h-star polynomial is real-rooted, and for every legal unit split the unsplit polynomial weakly inte...

Mechanism and plasticity of primitive pyroptosis

Pyroptosis is a proinflammatory form of regulated cell death across the tree of life. The gasdermin (GSDM) protein family functions as an evolutionarily conserved executioner of pyroptotic cell death by forming membrane pores. As the canonical activation mechanism, proteolytic cl...

Synergistic Dual‐Channel Charge Separation in Cr‐TiO 2‐x for Solar H 2 O 2 Synthesis

ABSTRACT Solar‐driven hydrogen peroxide (H 2 O 2 ) synthesis offers a sustainable alternative to the energy‐intensive anthraquinone process, yet its efficiency is fundamentally constrained by the inability to simultaneously harness photogenerated electrons and holes in a balanced...

Exact Signs and Sharp Boundaries for Product-Binomial Dold Coefficients

Let X be a rational exterior space and let f: X → X. Let A = Q(f*) be the graded action on the indecomposable quotient of the positive-degree rational cohomology of X. Suppose that χ_A(t) = t^s ∏_j (t^{n_j} − a_j)^{k_j}, with a nonempty product and every a_j ≥ 3. Powering the bin...

How does advertising goal framing impact green hotel consumption intentions? The moderating role of nature connectedness

Promoting green hotel consumption is a key element in the green transformation and upgrading of the tourism industry. Goal framing serves as a common method of information presentation to encourage consumer behavior. However, few studies have examined how advertising goal framing...

Robust and Efficient Dual-Strategy Switch Migration for Failure Recovery in Software-Defined Satellite Networks

Software-defined satellite networks (SDSNs) enhance resource utilization and flexibility in space-based networks by leveraging a global view and programmability. A highly reliable control plane is essential to sustain network operations. However, the highly dynamic topology and p...

A superelastic titanium alloy showing nearly temperature-independent high strength and elastic modulus

Lightweight superelastic alloys with temperature-insensitive properties are critical for deep-space exploration devices, yet their development is hindered by the challenge of simultaneously balancing strength, recoverable strain, and temperature sensitivity. Here, we overcome the...

Chromosome-level genome assembly of landrace ‘Huangzhou’ provides insights into high cellulose accumulation in radish

<title>Abstract</title> Radish ( <italic>Raphanus sativus</italic> L.) is an important root vegetable crop with extensive morphological and nutritional diversity. The landrace radish, ‘Huangzhou’ (HZ) radish, origins in Huangzhou area, Hubei province of China, and characterized b...

A cross-sectional study on identification and prevalence of hard ticks parasitizing large and small domestic animals

Ticks are blood-sucking ectoparasites transmitting pathogens that cause anemia, skin damage, weight loss, reduced meat and milk production, morbidity, and mortality in livestock. This study identified tick species and their prevalence on buffaloes, sheep, cows, and goats in Multa...

Nano‑Ni-based multi-channel recyclable thermal interface material with dual-mode interface adaptability

The rapid miniaturization and integration of electronic devices demand highly efficient thermal management while concurrently exacerbating the global electronic waste (e-waste) crisis. Although thermal interface materials (TIMs) are important for heat dissipation, their end-of-li...

Sodium Lidar observed multiple sodium layer structures and their dynamical coupling mechanism

Abstract. On the night of 13 June 2013, the University of Science and Technology of China (USTC) sodium lidar observed multiple sporadic sodium layers (SSLs) and enhanced sodium patterns (ESPs) over Hefei, China (31.8°N, 117.3°E). These structures appeared at different times, col...

Synergistic Cu nanowires/COF hybrid catalyst for high-efficiency CO2 electroreduction to C2+ products

Abstract The electrocatalytic CO 2 reduction reaction (eCO 2 RR) to high-value-added products is a highly promising strategy for alleviating the energy crisis and reducing carbon emissions. However, traditional Cu-based catalysts exhibit weak adsorption of CO 2 and low *CO interm...

Pre-Paleocene Kohistan–Karakoram Amalgamation: Evidence from the Detrital Zircon Provenance of the Baraul Banda Formation, Pakistan

The Baraul Banda Formation preserves an important Paleocene–Eocene sedimentary record within the western Kohistan–Ladakh Arc (KLA) and provides new constraints on sediment provenance and tectonic evolution during the final stages of Neo-Tethyan closure. This study integrates stra...

Tracking the baryon number with nuclear collisions

Baryon quantum number is found to be conserved since baryogenesis in the early Universe. Conventionally, each fractionally charged valence quark is understood to carry one-third of a baryon number. An alternative hypothesis posits that baryon number is instead carried by a baryon...

A programmable DNA origami nanosyringe for directed membrane translocation

Abstract Bacterial contractile injection systems provide a model for membrane penetration and targeted delivery of molecular cargo through mechanical actuation. Replicating these features in synthetic nanoscale systems remains challenging, particularly with respect to coupling st...

Increasing Climate Constraint on Vegetation Productivity Under Rising CO 2 in Northeast Asia

Abstract Elevated atmospheric CO 2 enhances vegetation productivity through direct physiological and indirect climate‐mediated pathways. However, how the balance between these mechanisms evolves under continued CO 2 rise remains unclear. Here, we use CMIP6 Earth system models to...

A Design-Technology Co-Optimization Framework Based on Process-Parameter Sensitivity Analysis

This paper proposes a design-technology co-optimization (DTCO) framework applicable to advanced technology nodes, which accelerates the process optimization exploration for such nodes. Developing automatic parameter extraction algorithms tailored for the BSIM-CMG model, along wit...

Synthetic β-amino acid polymer promoting keratocyte adhesion and corneal regeneration

Corneal damage ranks among the leading causes of visual impairment globally. Given the prevalence of corneal diseases and challenges of donor cornea shortages and immune rejection, there is an urgent need to develop alternative materials for corneal repair. Although decellular co...

Global proliferation of opportunistic pleuromeian lycopsids following the disappearance of the end-Triassic forests

Abstract Environmental crises and mass extinction events on land are typically followed by ecological upheaval, during which opportunistic plants rapidly colonize devastated landscapes, forming transient ‘pioneer’ communities that precede the establishment of complex forest ecosy...

Modulating the Spin State of Co 3+ to Promote Ampere‐Level Electrosynthesis of Ammonia

ABSTRACT Ammonia electrosynthesis via nitrate reduction offers a sustainable alternative to Haber–Bosch process, and this reaction involves an initial deoxygenation step from NO 3 − to *NO 2 , followed by successive hydrogenation steps to NH 3 . Previous studies have mainly focus...