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Scientific note on mass collection and hatching of honey bee embryos

d’embryons d’abeilles Eine wissenschaftliche Notiz über Sammelverfahren und das Schlüpfen großer Zahlen an Embryonen der Honigbiene Jay D. Evans, Humberto Boncristiani Jr. and Yanping Chen USDA-ARS Bee

Recent spread of Varroa destructor virus-1, a honey bee pathogen, in the United States

AffiliationsUS Department of Agriculture, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USAEugene V. Ryabov, Anna K. Childers, Yanping Chen, Shayne Madella & Jay D. EvansUniversity of Maryland ... in:Nature Research journals • PubMed • Google Scholar Search for Yanping Chen in:Nature Research journals • PubMed • Google Scholar Search for Shayne Madella in:Nature Research journals • PubMed • Google

Boundedness of homogeneous fractional integral operator on Morrey space

For 0 < α < n , the homogeneous fractional integral operator T Ω , α is defined by T Ω , α f ( x ) = ∫ R n Ω ( x − y ) | x − y | n − α f ( y ) d y . In this paper we prove that if Ω satisfies some smoothness conditions on S n − 1 , then T Ω , α is bounded from L λ α , λ ( R n ) to BMO ( R n ) , and from L p , λ ( R n ) ( λ α < p < ∞ ) to a class of the Campanato spaces L l...

Energy-Based Spectrum Sensing under Nonreconstruction Framework

 Khalique Copyright © 2015 Yulong Gao and Yanping Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and

Colony Collapse Disorder (CCD) and bee age impact honey bee pathophysiology

Honey bee (Apis mellifera) colonies continue to experience high annual losses that remain poorly explained. Numerous interacting factors have been linked to colony declines. Understanding the pathways linking pathophysiology with symptoms is an important step in understanding the mechanisms of disease. In this study we examined the specific pathologies associated with honey bees...

Jacobi spectral collocation method for the approximate solution of multidimensional nonlinear Volterra integral equation

We present in this paper the convergence properties of Jacobi spectral collocation method when used to approximate the solution of multidimensional nonlinear Volterra integral equation. The solution is sufficiently smooth while the source function and the kernel function are smooth. We choose the Jacobi–Gauss points associated with the multidimensional Jacobi weight function...

Low Serum Levels of Vitamins A, D, and E Are Associated with Recurrent Respiratory Tract Infections in Children Living in Northern China: A Case Control Study

Background This study aimed to investigate the association of serum concentrations of vitamin A, D, and E with recurrent respiratory tract infections (RRTIs). Methods A total of 1200 children aged at 0.5–14 years were selected via a face-to-face survey in Harbin, China. Among the participants, 600 children with RRTIs comprised the symptomatic group (RRTI group), whereas 600...

A posteriori error estimates of mixed finite element solutions for fourth order parabolic control problems

In this paper, a fourth order quadratic parabolic optimal control problem is analyzed. The state and co-state are discretized by the order k Raviart-Thomas mixed finite element spaces, and the control is approximated by piecewise polynomials of order k ( k ≥ 0 ). At last, the results of a posteriori error estimates are given in Lemma 2.1 by using mixed elliptic reconstruction...

A Robust Service Selection Method Based on Uncertain QoS

2016; Accepted 27 January 2016 Academic Editor: Alireza Amirteimoori Copyright © 2016 Yanping Chen et al. This is an open access article distributed under the Creative Commons Attribution License

Vector-valued inequalities for the commutators of rough singular kernels

Vector-valued inequalities are considered for the commutator of the singular integral with rough kernel. The results obtained in this paper are substantial improvement and extension of some known results.MSC: 42B20, 42B25.

On the Compactness of the Commutator of the Parabolic Marcinkiewicz Integral with Variable Kernel

, Ministry of Education, Beijing 100875, China Received 30 June 2014; Accepted 17 October 2014; Published 12 November 2014 Academic Editor: Gestur Ólafsson Copyright © 2014 Yanping Chen et al. This is an

The impact of glutamine supplementation on the symptoms of ataxia-telangiectasia: a preclinical assessment

Background Our previous studies of Alzheimer’s disease (AD) suggested that glutamine broadly improves cellular readiness to respond to stress and acts as a neuroprotectant both in vitro and in AD mouse models. We now expand our studies to a second neurodegenerative disease, ataxia-telangiectasia (A-T). Unlike AD, where clinically significant cognitive decline does not typically...

Cyanoacrylate Injection Compared with Band Ligation for Acute Gastric Variceal Hemorrhage: A Meta-Analysis of Randomized Controlled Trials and Observational Studies

Background. Cyanoacrylate injection (GVO) and band ligation (GVL) are effective treatments for gastric variceal hemorrhage. However, data on the optimal treatment are still controversial. Methods. For our overall analysis, relevant studies were identified from several databases. For each outcome, data were pooled using a fixed-effect or random-effects model according to the...

Cyanoacrylate Injection Compared with Band Ligation for Acute Gastric Variceal Hemorrhage: A Meta-Analysis of Randomized Controlled Trials and Observational Studies

Background. Cyanoacrylate injection (GVO) and band ligation (GVL) are effective treatments for gastric variceal hemorrhage. However, data on the optimal treatment are still controversial. Methods. For our overall analysis, relevant studies were identified from several databases. For each outcome, data were pooled using a fixed-effect or random-effects model according to the...

Dual transcriptome analysis reveals insights into the response to Rice black-streaked dwarf virus in maize

Maize rough dwarf disease (MRDD) is a viral infection that results in heavy yield losses in maize worldwide, particularly in the summer maize-growing regions of China. MRDD is caused by the Rice black-streaked dwarf virus (RBSDV). In the present study, analyses of microRNAs (miRNAs), the degradome, and transcriptome sequences were used to elucidate the RBSDV-responsive pathway(s...

Honey bee colonies provided with natural forage have lower pathogen loads and higher overwinter survival than those fed protein supplements

Malnutrition is a major cause of colony losses. In managed hives, bees are fed protein supplements (PS) during pollen shortages. If bees were provided with natural forage instead of PS, would they have lower pathogen levels and higher queen and colony survival? We addressed this question by either providing colonies with forage (Brassica rapa—rapini) or feeding them PS from...

Plio-Pleistocene evolution of Bohai Basin (East Asia): demise of Bohai Paleolake and transition to marine environment

Research journals • PubMed • Google ScholarSearch for Qiao Su in:Nature Research journals • PubMed • Google ScholarSearch for Yanping Chen in:Nature Research journals • PubMed • Google ScholarSearch for

Lp Bounds for the parabolic singular integral operator

Let 1 < p < ∞ and n ≥ 2. The authors establish the Lp (ℝ n+1) boundedness for a class of parabolic singular integral operators with rough kernels. MR(2000) Subject Classification: 42B20; 42B25.