Research works
The research papers we track — the newest first. Works with a plain-language summary link to it.
82553 work(s)
- Climate & EnvironmentOpen access
Quantifying the role of nitrogen in achieving global Sustainable Development Goals
Abstract Achieving the 2030 Sustainable Development Goals (SDGs) requires balancing well-being with environmental protection, yet the role of nitrogen across these goals remains poorly understood. Here, we show how dietary nitrogen intake and nitrogen release to air and water are...
- AI & ComputingOpen access
On the connection between zero-free regions and the error term in the prime number theorem
Abstract We provide for a wide class of zero-free regions an upper bound for the error term in the Prime Number Theorem, refining works of Pintz (1980), Johnston (2024), and Révész (2024). Our method does not only apply to the Riemann zeta function, but to general Beurling zeta f...
- BiologyOpen access
Cross modal reliable pixel contrastive learning for incomplete modal brain tumor segmentation
<title>Abstract</title> In clinical practice, Magnetic Resonance Imaging (MRI) often lacks specific modalities, inevitably leading to a degradation in predictive performance. Different modes are currently treated as independent and non-interfering during training for modal featur...
- Physics & SpaceOpen access
Towards unified AI-driven fracture mechanics: the extended deep energy method (XDEM)
Abstract Physics-Informed Neural Networks (PINNs) have recently emerged as powerful tools for solving partial differential equations (PDEs), with the Deep Energy Method (DEM) proving especially effective in fracture mechanics due to its energy-based formulation. Despite these adv...
- AI & ComputingOpen access
To achieve a fault-tolerant quantum computer, it is crucial to increase the coherence time of quantum bits. In this work, we theoretically investigate a system consisting of a series of superconducting qubits that alternate between XX and YY ultrastrong interactions. By consideri...
- Materials & EnergyOpen access
Dynamic helical poly[4]helicene nanoribbon
<title>Abstract</title> The precise synthesis of helical graphene nanoribbons (GNRs) with a controlled handedness has a transformative potential as the promising chiral carbon materials. We now report the first synthesis of a dynamic helical poly[4]helicene nanoribbon, a novel cl...
- BiologyOpen access
<title>Abstract</title> Edible coatings enriched with bioactive compounds represent a sustainable alternative to synthetic preservatives, offering both microbial safety and extended shelf life. This study introduces an active edible coating system based on whey protein isolate (W...
- Health & MedicineOpen access
Abstract Background Although obesity and mental health problems represent two of the most pressing public health challenges, their developmental interplay remains insufficiently understood. Thus, we examined how depressive and anxiety symptoms, self-esteem, and psychological resi...
- Society & EconomicsOpen access
Abstract Purpose Mechanical restraint (MR) remains one of the most controversial interventions in psychiatry, particularly in involuntarily admitted patients. This study examined the prevalence and clinical predictors of MR in an open-door psychiatric unit in Spain, a context whe...
- BiologyOpen access
Refining genetic circuit design for enhanced type II polyketide biosynthesis in Escherichia coli
Polyketides represent a broad class of structurally diverse natural products with potent antibacterial and anticancer activities. Type II polyketide synthases (T2PKS) are multi-subunit complexes responsible for condensing acylated intermediates, including acetyl-CoA and malonyl-C...
- BiologyOpen access
<title>Abstract</title> <italic>Arnica montana</italic> L. is a medicinal plant endemic to Europe and declining in large parts of its range. Low sequence diversity in genetic marker regions caused biogeographic patterns and the phylogenetic relationship between <italic>A. montana...
- Health & MedicineOpen access
<title>Abstract</title> Background Minimally invasive techniques have become the standard of care for treating rectal prolapse through a transabdominal approach. However, there is limited data comparing the laparoscopic and robotic approaches in terms of long-term recurrence and...
- BiologyOpen access
RobustCell: a model attack-defense framework for robust transcriptomic data analysis
Abstract Computational methods should be accurate and robust for tasks in biology and medicine, especially when facing different types of attacks, defined as perturbations of benign data that can cause a significant drop in method performance. Therefore, there is a need for robus...
- AI & ComputingOpen access
Fast, unconditional reset and leakage reduction in fixed-frequency transmon qubits
Abstract On-demand qubit-state initialization is a prerequisite for quantum computation. We demonstrate such a protocol in a device consisting of fixed-frequency transmon qubits pair-wise coupled via tunable couplers — an architecture that is also compatible with the surface code...
- AI & ComputingOpen access
Kernel smoothing operators on thick open domains
We study the convergence properties of a general family of normalized Markovian kernels on a domain $$\Omega$$ in the Euclidean space. Based on the notion of a thick set we show that a local Hardy-Littlewood inequality holds in $$L^p(\Omega)$$ , $$p \in (1, \infty]$$ when $$\Omeg...
- AI & ComputingOpen access
Robust joint estimation of galaxy redshift and spectral templates using online dictionary learning
We present a novel approach to analyzing astronomical spectral survey data using our non-linear extension of an online dictionary learning algorithm. Current and upcoming surveys such as SPHEREx will use spectral data to build a 3D map of the universe by estimating the redshifts...
- AI & ComputingOpen access
ABSTRACT This work presents a new method to design consensus controllers for perturbed double integrator systems whose interconnection is described by a directed graph containing a rooted spanning tree. We propose new robust controllers to solve the consensus and synchronization...
- AI & ComputingOpen access
This paper provides the technical proof carrier for the finite-$R$ reconstruction of harmonic quantum variance for a Mellin-neutralized moving family of incomplete Eisenstein observables on the modular surface. Starting from the exact parity-complete Kuznetsov decomposition $$S_R...
- AI & ComputingOpen access
A Conditional Reduction of the Riemann Hypothesis to Even Dominance of the Weil Quadratic Form
This paper presents a conditional reduction and diagnostic programme toward the Riemann Hypothesis via even dominance of the Weil quadratic form. It extracts the proof-relevant chain from a three-part Landscape series while making the remaining mathematical gap explicit. (i) Exte...
- Society & EconomicsOpen access
Which QTT numbers are pure, anchored, keystone-dependent, or structural? The Keystone Audit classifies every headline result before judging its numerical landing. Its paper-native master split remains \[ \boxed{ \mathcal R = \mathcal R_{\rm U}\sqcup \mathcal R_{\rm A}\sqcup \math...