18 Result(s)
within
**n-Qiang Guo
Science, Humanities and Social Sciences, multidisciplinary
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Article
Open AccessGut microbiota impacts bone via Bacteroides vulgatus-valeric acid-related pathways
Although the gut microbiota has been reported to influence osteoporosis risk, the individual species involved, and underlying mechanisms, remain largely unknown. We performed integrative analyses in a Chinese ...
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Open AccessCamrelizumab combined with apatinib in patients with first-line platinum-resistant or PD-1 inhibitor resistant recurrent/metastatic nasopharyngeal carcinoma: a single-arm, phase 2 trial
Immunotherapy combined with antiangiogenic targeted therapy has improved the treatment of certain solid tumors, but effective regimens remain elusive for refractory recurrent/metastatic nasopharyngeal carcinom...
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Article
Open AccessTransition-metal free C–N bond formation from alkyl iodides and diazonium salts via halogen-atom transfer
Construction of C-N bond continues to be one part of the most significant goals in organic chemistry because of the universal applications of amines in pharmaceuticals, materials and agrochemicals. However, E2...
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Innovative ochre processing and tool use in China 40,000 years ago
Homo sapiens was present in northern Asia by around 40,000 years ago, having replaced archaic populations across Eurasia after episodes of earlier population expansions and interbreeding1–4. Cultural adaptations ...
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Open AccessIdentification of geographical origins of Panax notoginseng based on HPLC multi-wavelength fusion profiling combined with average linear quantitative fingerprint method
The aim of this study was to establish a method for geographical origins identification of Panax notoginseng (P. notoginseng) based on abundant chromatographic spectral information. Characteristic fingerprints of...
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Open AccessOptimising surface d charge of AuPd nanoalloy catalysts for enhanced catalytic activity
Understanding the catalytic mechanism of bimetallic nanocatalysts remains challenging. Here, we adopt an adsorbate mediated thermal reduction approach to yield monodispersed AuPd catalysts with continuous chan...
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Open AccessImproved security bound for the round-robin-differential-phase-shift quantum key distribution
The round-robin-differential-phase-shift (RRDPS) quantum key distribution (QKD) protocol has attracted intensive study due to its distinct security characteristics; e.g., information leakage is bounded without...
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Open AccessTighter bound of quantum randomness certification for independent-devices scenario
Quantum random number generation attracts considerable attention, since its randomness inherently originates in quantum mechanics, but not mathematical assumptions. Randomness certification, e.g. entropy estim...
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Ground-to-satellite quantum teleportation
Quantum teleportation of single-photon qubits from a ground observatory to a satellite in low-Earth orbit via an uplink channel is achieved with a fidelity that is well above the classical limit.
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Article
Open AccessHarvesting more grain zinc of wheat for human health
Increasing grain zinc (Zn) concentration of cereals for minimizing Zn malnutrition in two billion people represents an important global humanitarian challenge. Grain Zn in field-grown wheat at the global scale...
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Open AccessGWAS follow-up study of esophageal squamous cell carcinoma identifies potential genetic loci associated with family history of upper gastrointestinal cancer
Based on our initial genome-wide association study (GWAS) on esophageal squamous cell carcinoma (ESCC) in Han Chinese, we conducted a follow-up study to examine the single nucleotide polymorphisms (SNPs) assoc...
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Open AccessLoss-tolerant measurement-device-independent quantum private queries
Quantum private queries (QPQ) is an important cryptography protocol aiming to protect both the user’s and database’s privacy when the database is queried privately. Recently, a variety of practical QPQ protoco...
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A buried Neolithic paddy soil reveals loss of microbial functional diversity after modern rice cultivation
It has been documented that human activities are causing the rapid loss of taxonomic, phylogenetic, genetic and functional diversity in soils. However, it remains unclear how modern intensive rice cultivation ...
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Open AccessExperimental demonstration on the deterministic quantum key distribution based on entangled photons
As an important resource, entanglement light source has been used in develo** quantum information technologies, such as quantum key distribution(QKD). There are few experiments implementing entanglement-base...
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Open AccessRandomness determines practical security of BB84 quantum key distribution
Unconditional security of the BB84 quantum key distribution protocol has been proved by exploiting the fundamental laws of quantum mechanics, but the practical quantum key distribution system maybe hacked by c...
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Open AccessOxalic acid and sclerotial differentiation of Polyporus umbellatus
The present investigation aimed to uncover the effects of exogenous oxalic acid during the sclerotial formation of Polyporus umbellatus, with an emphasis on determining the content of the endogenic oxalic acid in...
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Open AccessSecurity of modified **-Pong protocol in noisy and lossy channel
The “**-Pong” (PP) protocol is a two-way quantum key protocol based on entanglement. In this protocol, Bob prepares one maximally entangled pair of qubits and sends one qubit to Alice. Then, Alice performs s...
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Open AccessProof-of-principle experiment of reference-frame-independent quantum key distribution with phase coding
We have demonstrated a proof-of-principle experiment of reference-frame-independent phase coding quantum key distribution (RFI-QKD) over an 80-km optical fiber. After considering the finite-key bound, we still...
