Search results for: R. Xu

Items from 1 to 20 out of 488 results

article

Body size shift in sympatric insects in response to distinct selective forces in fragmented urban environments

B.‐Y. Jia, R.‐Y. Xu, Z.‐H. Shi, N.‐N. Sun, more

Journal of Zoology > 322 > 4 > 318 - 328

Phenotypic plasticity, which encompasses the diversification of both irreversible and reversible traits, has long been considered an adaptive response by animals to varying environmental conditions. However, the process by which irreversible and reversible traits are coordinated to form an adaptive response to the changing environment has yet to be clarified. Here, we investigated the variation in...

article

Uncovering prostate cancer aggressiveness signal in T2‐weighted MRI through a three‐reference tissues normalization technique

Ahmad Algohary, Evangelia I. Zacharaki, Adrian L. Breto, Mohammad Alhusseini, more

NMR in Biomedicine > 37 > 3 > n/a - n/a

Quantitative T2‐weighted MRI (T2W) interpretation is impeded by the variability of acquisition‐related features, such as field strength, coil type, signal amplification, and pulse sequence parameters. The main purpose of this work is to develop an automated method for prostate T2W intensity normalization. The procedure includes the following: (i) a deep learning‐based network utilizing MASK R‐CNN...

article

A Medicare Physician Fee Schedule Analysis of Reimbursement Trends in Laryngology from 2000 to 2021

James R. Xu, Robert R. Lorenz, Kathleen M. Mulligan, Todd D. Otteson, more

The Laryngoscope > 134 > 1 > 247 - 256

Objective The purpose of this study is to characterize Medicare reimbursement trends for laryngology procedures over the last two decades. Methods This analysis used CMS' Physician Fee Schedule (PFS) Look‐Up Tool to determine the reimbursement rate of 48 common laryngology procedures, which were divided into four groups based on their practice setting and clinical use: office‐based, airway, voice...

article

Visualizable intracardiac flow pattern in fetuses with congenital heart defect: pilot study of blood speckle‐tracking echocardiography

R. Xu, M. Hou, D. Zhou, Y. Liu, more

Ultrasound in Obstetrics & Gynecology > 62 > 5 > 688 - 694

Objectives Blood‐flow pattern is an essential factor in cardiovascular development. Recently, blood speckle‐tracking echocardiography (BST) based on high‐frame‐rate ultrasound has emerged as a promising technique for the assessment of blood‐flow patterns and properties. The objectives of this study were to determine the feasibility of BST in the fetus and to assess intracardiac blood‐flow patterns...

article

Fetal endoscopic tracheal occlusion for congenital diaphragmatic hernia: systematic review and meta‐analysis

Y. Chen, R. Xu, X. Xie, T. Wang, more

Ultrasound in Obstetrics & Gynecology > 61 > 6 > 667 - 681

Objective It is debated whether fetal endoscopic tracheal occlusion (FETO) is beneficial to fetuses with congenital diaphragmatic hernia (CDH) and whether FETO has different effects in moderate and severe CDH. We conducted a systematic review and meta‐analysis including the latest evidence to assess the overall effects of FETO on clinical outcomes of CDH. Methods We searched PubMed, EMBASE, The...

article

Impaired ascending aortic elasticity in fetuses with tetralogy of Fallot

R. Xu, D. Zhou, M. Liu, Q. Zhou, more

Ultrasound in Obstetrics & Gynecology > 61 > 4 > 497 - 503

Objectives Aortic wall stiffness has been reported in infants with tetralogy of Fallot (ToF) and may contribute to long‐term aortic dilation even after corrective repair surgery. However, little is known about aortic elasticity in fetuses with ToF and the association with neonatal aortic dilation. The objectives of this study were to assess measures of elasticity of the ascending aorta (AAo) in fetuses...

article

UV safety recommendations and health claims by U.S. tanning salon operators in a nationally representative sample

Kayley L. Erickson, Cong Fan, Sarah J. Eley, Annalise Vaccarello, more

Journal of Cosmetic Dermatology > 22 > 2 > 674 - 676

article

Differences in scholarly productivity between allopathic, osteopathic and non‐US international medical graduates matching into dermatology residency

Annalise Vaccarello, David X. Zheng, Jatin Narang, Benjamin Gallo Marin, more

Clinical and Experimental Dermatology > 47 > 12 > 2306 - 2308

article

Association between maternal oxygenation and brain growth in fetuses with left‐sided cardiac obstructive lesions

R. Xu, J. Zhou, D. Zhou, W. Deng, more

Ultrasound in Obstetrics & Gynecology > 60 > 4 > 499 - 505

Objective Impaired brain growth has been observed in fetuses with left‐sided obstructive lesions (LSOL). Maternal oxygenation (MO) can alter fetal cerebral oxygenation and vascular reactivity. Our aim was to observe whether brain growth improves during MO in fetuses with LSOL. Methods Forty‐six fetuses with LSOL and 23 control fetuses were enrolled in this prospective longitudinal study. Fetuses...

article

Transcript profiles analysis of citrus aquaporins in response to fruit water loss during storage

M. Zhang, H. Yang, F. Zhu, R. Xu, more

Plant Biology > 23 > 5 > 819 - 830

Water loss is an essential factor that affects the maintenance of quality of citrus fruit during postharvest handling and storage. Aquaporins (AQPs) play an important role in the transport of water across membranes. However, the expression profiling of AQPs is incomplete for citrus fruits during storage. In this study, a post‐harvest storage experiment was performed using sweet orange fruits to...

article

Half‐year follow‐up of patients recovering from severe COVID‐19: Analysis of symptoms and their risk factors

Y. F. Shang, T. Liu, J. N. Yu, X. R. Xu, more

Journal of Internal Medicine > 290 > 2 > 444 - 450

Objectives To understand the sequelae of COVID‐19. Methods We followed up 1174 patients with severe coronavirus disease 2019 (COVID‐19)who were recovered and discharged for 6 months. Results There were 175 cases with clear IgG results 6 months after discharge, of which 82 (46.9%) were IgG (+) and 16 (9.1%) were IgG (dim+). Four hundred and forty‐one participants (55.4%) had some kind of sequelae...

article

The phytotoxin COR induces transcriptional reprogramming of photosynthetic, hormonal and defence networks in tomato

Z. C. Zhang, B. He, S. Sun, X. Zhang, more

Plant Biology > 23 > S1 > 69 - 79

Coronatine (COR) is a non‐host specific phytotoxin secreted by Pseudomonas syringae pv. tomato that can induce leaf chlorosis and increase the virulence of pathogens during plant–pathogen interactions. Studies have shown that COR can regulate multiple physiological processes in plants, but its involvement in bacterial pathogenesis and plant growth regulation is not well understood. In this study,...

article

Rapid detection of extended‐spectrum β‐Lactamases producers in Enterobacteriaceae using a calorimetry approach

J.‐E. Lei, Q. Wang, Y. Lin, F. Li, more

Journal of Applied Microbiology > 130 > 5 > 1523 - 1530

Aim To design and assess a novel protocol that employs isothermal titration calorimetry (ITC) for rapid detection of extended‐spectrum β‐lactamase (ESBL)‐producers in clinical pathogens. Methods and Results A total of 69 clinical Enterobacteriaceae isolates were examined in the new ESBL‐ITC test by examining the heat profiles associated with enzyme hydrolysis of different substrates (imipenem,...

article

Quantitative proteomics analysis reveals the response mechanism of peanut (Arachis hypogaea L.) to imbibitional chilling stress

H. Chen, N. Liu, R. Xu, X. Chen, more

Plant Biology > 23 > 3 > 517 - 527

Imbibitional chilling stress inhibits normal seed germination and seedling establishment and leads to large losses in peanut production. This is a major limiting factor when sowing peanut earlier and further north. To reveal the response mechanism of peanut to imbibitional chilling stress, a Tandem Mass Tag (TMT)‐based quantitative proteomics analysis was conducted to identify differentially accumulated...

article

Caspofungin combined with TMP/SMZ as a first‐line therapy for moderate‐to‐severe PCP in patients with human immunodeficiency virus infection

Q Tian, J Si, F Jiang, R Xu, more

HIV Medicine > 22 > 4 > 307 - 313

Objectives The effectiveness of trimethoprim/sulfamethoxazole (TMP/SMZ) for pneumocystis pneumonia (PCP) is limited with adverse events. Caspofungin, by inhibiting the cyst form of Pneumocystis jirovecii, may be an alternative therapy for PCP. However, the availability of clinical data about caspofungin combined with TMP/SMZ in the treatment of PCP in HIV‐infected patients is limited. Thus, we aimed...

article

Inhibitory effects of essential oils from Asteraceae plant against pathogenic fungi of Panax notoginseng

Z.‐Y. Zeng, Q.‐Q. Li, Y.‐Y. Huo, C.‐J. Chen, more

Journal of Applied Microbiology > 130 > 2 > 592 - 603

Aims Diseases caused by pathogenic fungi was a major constrain in increasing productivity and improving quality of Panax notoginseng. The aim of this research was to evaluate the inhibitory activity of essential oils (EOs) from Asteraceae family, Chrysanthemum indicum and Laggera pterodonta, against pathogenic fungi of P. notoginseng. Methods and Results The antifungal activity was investigated...

article

Co‐reactivation of the human herpesvirus alpha subfamily (herpes simplex virus‐1 and varicella zoster virus) in a critically ill patient with COVID‐19

R. Xu, Y. Zhou, L. Cai, L. Wang, more

British Journal of Dermatology > 183 > 6 > 1145 - 1147

article

Effects of Bacillus methylotrophicus M4‐1 on physiological and biochemical traits of wheat under salinity stress

C. Ji, X. Wang, H. Tian, L. Hao, more

Journal of Applied Microbiology > 129 > 3 > 695 - 711

Aim The aim of this study was to evaluate the ability of Bacillus methylotrophicus M4‐1 to protect winter wheat from the harmful effects of soil salinity and alkalinity. Methods and Results We isolated the halotolerant B. methylotrophicus M4‐1. Two representative soils with different salt contents (S1, 213 μs cm⁻¹; S2, 786 μs cm⁻¹) in the Yellow River delta region of China were selected for experiments...

article

Measurement of the inclusive isolated photon production cross section in $$\text{ p }\text{ p }$$ pp collisions at $$\sqrt{s}=7$$ s=7 TeV

S. Acharya, D. Adamová, S. P. Adhya, A. Adler, more

The European Physical Journal C > 2019 > 79 > 11 > 1-20

The production cross section of inclusive isolated photons has been measured by the ALICE experiment at the CERN LHC in pp collisions at a centre-of-momentum energy of $$\sqrt{s}=$$ s= 7 TeV. The measurement is performed with the electromagnetic calorimeter EMCal and the central tracking detectors, covering a range of $$|\eta |<0.27$$ |η|<0.27 in pseudorapidity and a transverse momentum range...

article

Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at $$ \sqrt{\mathbf{s}} =\mathbf{5.02}$$ s=5.02 and 13 TeV

ALICE Collaboration, S. Acharya, D. Adamová, S. P. Adhya, more

The European Physical Journal C > 2019 > 79 > 10 > 1-22

We present a study of the inclusive charged-particle transverse momentum ($$p_{\mathrm{T}}$$ pT ) spectra as a function of charged-particle multiplicity density at mid-pseudorapidity, $$\mathrm{d}N_{\mathrm{ch}}/\mathrm{d}\eta $$ dNch/dη , in pp collisions at $$\sqrt{s}=5.02$$ s=5.02 and 13 TeV covering the kinematic range $$|\eta |<0.8$$ |η|<0.8 and $$0.15<p_{\mathrm{T}} <20$$ 0.15<pT<20...

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INFONA - science communication portal

Search results for: R. Xu

Body size shift in sympatric insects in response to distinct selective forces in fragmented urban environments

Uncovering prostate cancer aggressiveness signal in T2‐weighted MRI through a three‐reference tissues normalization technique

A Medicare Physician Fee Schedule Analysis of Reimbursement Trends in Laryngology from 2000 to 2021

Visualizable intracardiac flow pattern in fetuses with congenital heart defect: pilot study of blood speckle‐tracking echocardiography

Fetal endoscopic tracheal occlusion for congenital diaphragmatic hernia: systematic review and meta‐analysis

Impaired ascending aortic elasticity in fetuses with tetralogy of Fallot

UV safety recommendations and health claims by U.S. tanning salon operators in a nationally representative sample

Differences in scholarly productivity between allopathic, osteopathic and non‐US international medical graduates matching into dermatology residency

Association between maternal oxygenation and brain growth in fetuses with left‐sided cardiac obstructive lesions

Transcript profiles analysis of citrus aquaporins in response to fruit water loss during storage

Half‐year follow‐up of patients recovering from severe COVID‐19: Analysis of symptoms and their risk factors

The phytotoxin COR induces transcriptional reprogramming of photosynthetic, hormonal and defence networks in tomato

Rapid detection of extended‐spectrum β‐Lactamases producers in Enterobacteriaceae using a calorimetry approach

Quantitative proteomics analysis reveals the response mechanism of peanut (Arachis hypogaea L.) to imbibitional chilling stress

Caspofungin combined with TMP/SMZ as a first‐line therapy for moderate‐to‐severe PCP in patients with human immunodeficiency virus infection

Inhibitory effects of essential oils from Asteraceae plant against pathogenic fungi of Panax notoginseng

Co‐reactivation of the human herpesvirus alpha subfamily (herpes simplex virus‐1 and varicella zoster virus) in a critically ill patient with COVID‐19

Effects of Bacillus methylotrophicus M4‐1 on physiological and biochemical traits of wheat under salinity stress

Measurement of the inclusive isolated photon production cross section in $$\text{ p }\text{ p }$$ pp collisions at $$\sqrt{s}=7$$ s=7 TeV

Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at $$ \sqrt{\mathbf{s}} =\mathbf{5.02}$$ s=5.02 and 13 TeV

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