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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...

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...

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.

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...

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...

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.

A priori error estimates for higher order variational discretization and mixed finite element methods of optimal control problems

improvements of the presentation. Zuliang Lu was by the supported National Science Foundation of China (11126329) and China Postdoctoral Science Foundation (2011M500968). Yanping Chen was supported by the

Effects of host age on susceptibility to infection and immune gene expression in honey bee queens (Apis mellifera) inoculated with Nosema ceranae

Nosema ceranae is a microsporidium parasite infecting honey bees worldwide. All colony members including workers, drones, and queens can become infected. In this study, we inoculated queens of age 1, 6, and 12 days post-adult emergence, with N. ceranae spores of different doses and allowed them to age an additional 12 days. The results indicated that younger queens were indeed...

Molecular Genetic Analysis and Evolution of Segment 7 in Rice Black-Streaked Dwarf Virus in China

Rice black-streaked dwarf virus (RBSDV) causes maize rough dwarf disease or rice black-streaked dwarf disease and can lead to severe yield losses in maize and rice. To analyse RBSDV evolution, codon usage bias and genetic structure were investigated in 111 maize and rice RBSDV isolates from eight geographic locations in 2013 and 2014. The linear dsRNA S7 is A+U rich, with overall...

Multifocal Langerhans cell sarcoma involving epidermis: a case report and review

ObjectiveTo study the clinico-pathological characteristics of Langerhans cell sarcoma (LCS) which involving epidermis.MethodsA case of primary multifocal LCS was analyzed in histopathology and immunophenotype.ResultsA 41-year-old man with multifocal cutaneous LCS involving the inguina and waist was reported. Clinical and pathology data were available. Neoplastic cells with...

Expression pattern of the apoptosis-stimulating protein of p53 family in p53+ human breast cancer cell lines

Background The apoptosis-stimulating protein of p53 (ASPP) family comprises three members, namely, ASPP1, ASPP2, and iASPP. They regulate the promotive effect of p53 on apoptosis. Breast cancer (BC) remains as one of the leading causes of cancer or cancer-related mortality among women. However, the relationship between the ASPP family members and p53, as well as the dissemination...

Commutators of Littlewood-Paley Operators on the Generalized Morrey Space

Let , , and denote the Marcinkiewicz integral, the parameterized area integral, and the parameterized Littlewood-Paley function, respectively. In this paper, the authors give a characterization of BMO space by the boundedness of the commutators of , , and on the generalized Morrey space .

Population-genomic variation within RNA viruses of the Western honey bee, Apis mellifera, inferred from deep sequencing

Background Deep sequencing of viruses isolated from infected hosts is an efficient way to measure population-genetic variation and can reveal patterns of dispersal and natural selection. In this study, we mined existing Illumina sequence reads to investigate single-nucleotide polymorphisms (SNPs) within two RNA viruses of the Western honey bee (Apis mellifera), deformed wing...

Viral Infection Affects Sucrose Responsiveness and Homing Ability of Forager Honey Bees, Apis mellifera L.

Honey bee health is mainly affected by Varroa destructor, viruses, Nosema spp., pesticide residues and poor nutrition. Interactions between these proposed factors may be responsible for the colony losses reported worldwide in recent years. In the present study, the effects of a honey bee virus, Israeli acute paralysis virus (IAPV), on the foraging behaviors and homing ability of...