Publications by authors named "Ya-Nan Lv"

Postselecting output states can effectively amplify weak signals in measurements. However, the postselection (PS) effect may also introduce unintended biases in precision measurements. Here, we investigate the influence of PS in the precision spectroscopy of the 2 - 2 transition of helium (He) using an atomic beam.

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Insects represent one of the most evolutionarily successful groups, with their diversity hypothesized to be related to the regulatory roles of Hox genes, a set of related genes encoding homeodomain transcription factors determining the identity of segments along the anterior-posterior axis of the embryo. However, functional insights into the roles of Hox genes in primitive ametabolous insects, which represent the critical transition from aquatic crustaceans to winged insects, have been limited. In this study, we identified complete protein-coding sequences of 10 Hox genes in the Zygentoma Thermobia domestica, and applied clustered regularly interspaced short palindromic repeats (CRISPR) / CRISPR-associated nuclease 9 (Cas 9) mediated gene knockout (KO) to decipher their functions.

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The evolution of insect metamorphosis has profoundly influenced their successful adaptation and diversification. Two key physiological processes during insect metamorphosis are notable: wing maturation and prothoracic gland (PG) histolysis. The ecdysone-induced protein 93 (E93) is a transcription factor indispensable for metamorphosis.

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Background: Juvenile hormone (JH) is an insect-exclusive hormone involved in regulating diverse aspects of insect physiology, and the evolution of its diverse function is widely interesting. Studying embryogenesis in basal wingless insects is important to understand the functional evolution of JH; however, experimental studies in this regard are scarce. In this study, we conducted CRISPR/Cas9-mediated knockout (KO) of genes involved in JH biosynthesis and signaling cascades in the ametabolous firebrat, Thermobia domestica.

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The fluorescence collection from single atoms and emitters has been extensively utilized in quantum information and quantum optics research. Here, we investigated the collection efficiency of an objective lens by drawing an analogy between the free-space beam (FSB) and a waveguide mode. We explored how efficiency is influenced by their thermal motion within a dipole trap.

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Background: Cervical cancer (CC) remains the second leading cause of cancer-related death in women, and the ability to accurately anticipate the presence or absence of lymphovascular space invasion (LVSI) is critical to maintaining optimal patient outcomes. The objective of this study was to establish and verify an MRI radiomics-based model to predict the status of LVSI in patients with operable CC.

Methods: The current study performed a retrospective analysis, with 86 patients in the training cohort and 38 patients in the testing group, specifically focusing on patients with CC.

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Introduction: In patients with pulmonary nodules (PNs), computed tomography (CT)-guided localization is commonly performed prior to the resection of these nodules through video-assisted thoracic surgery (VATS).

Aim: To evaluate the relative clinical efficacy of coil and anchored needle (AN) insertion as approaches to preoperative CT-guided PN localization.

Material And Methods: This single-center, prospective, open-label, randomized controlled trial (registration number: NCT05183945) enrolled consecutive patients from January 2022 to July 2022, assigning these patients at random to undergo either coil or AN localization prior to VATS.

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Ecdysone-induced protein 93 (E93), known as the 'adult-specifier' transcription factor in insects, triggers metamorphosis in both hemimetabolous and holometabolous insects. Although E93 is conserved in ametabolous insects, its spatiotemporal expression and physiological function remain poorly understood. In this study, we first discover that, in the ametabolous firebrat Thermobia domestica, the previtellogenic ovary exhibits cyclically high E93 expression, and E93 mRNA is broadly distributed in previtellogenic ovarioles.

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Article Synopsis
  • The study evaluates the effectiveness and safety of low-dose CT-guided biopsy for diagnosing pulmonary nodules compared to standard-dose CT-guided biopsy.
  • Data from 6 studies involving 843 patients showed no significant differences in diagnostic accuracy, yield, or complication rates between low-dose and normal-dose CT groups.
  • However, patients undergoing low-dose CT experienced 91% less radiation exposure, highlighting its potential benefits in minimizing safety risks.
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  • This study compares two methods of locating lung nodules before surgery: CT-guided and bronchoscopic localization.
  • The analysis included data from 321 patients with CT-guided localization and 220 patients with bronchoscopic localization, finding similar technical success rates, but bronchoscopic methods resulted in fewer complications like pneumothorax and pulmonary hemorrhage.
  • Overall, while both methods have their benefits, bronchoscopic localization is safer, even though CT-guided procedures led to shorter surgery times.
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  • Sleep disorders are prevalent and can lead to long-term issues, including an increased risk of Alzheimer's disease, though the specific mechanisms are not fully understood.
  • Research indicates that sleep deficiency is linked to harmful processes like oxidative stress, protein deposition, and neuroinflammation, all of which may contribute to the development of Alzheimer's.
  • The findings suggest a strong connection between sleep disturbances and Alzheimer's, highlighting the need for effective treatment and prevention strategies based on this relationship.
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  • * The study focuses on a rubidium vapor-cell system that utilizes both optical and microwave fields, allowing control over the coherence of ground states through the microwave's Rabi frequency or the phase relationship between the fields.
  • * The research suggests that measuring the Rabi frequency can lead to SI-traceable intensity stabilization of the optical field, paving the way for the development of new optical field strength standards.
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Zygentoma occupies a key evolutionary position for understanding the evolution of insect metamorphosis but has received little attention in terms of genetic analysis. To develop functional genomic studies in this insect, we evaluated five candidate internal reference genes for quantitative RT-PCR (qPCR) studies from , a representative species of Zygentoma, including (), (), (), (), and (), at different developmental stages, in various body parts, and under dsRNA microinjection and starvation stresses, using four algorithms (delta Ct, geNorm, NormFinder and BestKeeper) and a comparative algorithm (RefFinder). Specific suitable reference genes were recommended across specific experimental conditions, and the combination of and was appropriate for all tested samples.

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: Cancer causes thousands of deaths worldwide each year. Therefore, monitoring of health status and the early diagnosis of cancer using noninvasive assays, such as the analysis of molecular biomarkers in urine, is essential. However, effective biomarkers for early diagnosis of cancer have not been established in many types of cancer.

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Studied as a type of tumor suppressor, microRNA (miR) performs an important role in growth and apoptosis of various human carcinomas. However, the effects of miR-l44 on osteosarcoma growth and apoptosis, as well as possible underlying mechanisms, remain unclear. The present study investigated the expression of miR-144 in osteosarcoma MG-63 and U-2 OS cell lines compared with osteoblast cells.

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