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The petroleum system: a new classification scheme based on reservoir qualities

A new classification of petroleum systems (PSs) based on reservoir qualities is proposed. We classify PSs into the following three basic types: (1) source-rock petroleum system (SPS); (2) tight-reservoir or tight petroleum system (TPS); and (3) conventional-reservoir or conventional petroleum system (CPS). The CPS is a PS in which hydrocarbons accumulate in conventional...

Spin- and Valley-Dependent Electronic Structure in Silicene Under Periodic Potentials

We study the spin- and valley-dependent energy band and transport property of silicene under a periodic potential, where both spin and valley degeneracies are lifted. It is found that the Dirac point, miniband, band gap, anisotropic velocity, and conductance strongly depend on the spin and valley indices. The extra Dirac points appear as the voltage potential increases, the...

Progress and challenges towards targeted delivery of cancer therapeutics

Targeted delivery approaches for cancer therapeutics have shown a steep rise over the past few decades. However, compared to the plethora of successful pre-clinical studies, only 15 passively targeted nanocarriers (NCs) have been approved for clinical use and none of the actively targeted NCs have advanced past clinical trials. Herein, we review the principles behind targeted...

Author Correction: Gate-tunable third-order nonlinear optical response of massless Dirac fermions in graphene

?Dai Lei?Shi Kaihui?Liu Changgan?Zeng Jian?Zi J.?E.?Sipe Yuen-Ron?Shen Wei-Tao?Liu Shiwei?Wu The authors of this Article have become aware of the following recent paper that reports the electrically

Pancreatic Tuberculosis with Vascular Involvement and Peritoneal Dissemination in a Young Man

the systematic literature review. Ning Zhang completed the detection of pathological biopsies. Wei Tao managed this patient primarily and contributed to the conduction of EUS. Zhitao Wang carried out

Pancreatic Tuberculosis with Vascular Involvement and Peritoneal Dissemination in a Young Man

the systematic literature review. Ning Zhang completed the detection of pathological biopsies. Wei Tao managed this patient primarily and contributed to the conduction of EUS. Zhitao Wang carried out

Structure and electrochemical performance of BaLi2−x Na x Ti6O14 (0≤x≤2) as anode materials for lithium-ion battery

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 737 © Science China Press and Springer-Verlag Berlin Heidelberg 2017 Wei Tao received his BE degree from Anhui University of Technology in 2015. He is now a second year Master student in Prof. Ting-Feng

Smartphone-Based Dual-Modality Imaging System for Quantitative Detection of Color or Fluorescent Lateral Flow Immunochromatographic Strips

Nowadays, lateral flow immunochromatographic assays are increasingly popular as a diagnostic tool for point-of-care (POC) test based on their simplicity, specificity, and sensitivity. Hence, quantitative detection and pluralistic popular application are urgently needed in medical examination. In this study, a smartphone-based dual-modality imaging system was developed for...

IGF-1-mediated PKM2/β-catenin/miR-152 regulatory circuit in breast cancer

Dysregulation of miRNAs is important in breast cancer initiation and malignant progression. Recently we showed that miR-152 downregulation is associated with breast cancer development, yet the underlying mechanism of miR-152 remains to be well elucidated. In this study, we identified β-catenin as a new direct target of miR-152. MiR-152 inhibited cell proliferation by targeting...

High fidelity computational simulation of thrombus formation in Thoratec HeartMate II continuous flow ventricular assist device

Continuous flow ventricular assist devices (cfVADs) provide a life-saving therapy for severe heart failure. However, in recent years, the incidence of device-related thrombosis (resulting in stroke, device-exchange surgery or premature death) has been increasing dramatically, which has alarmed both the medical community and the FDA. The objective of this study was to gain...

Effects of a Soluble Epoxide Hydrolase Inhibitor on Lipopolysaccharide-Induced Acute Lung Injury in Mice

Objectives Inflammation plays a key role in the pathogenesis of acute lung injury (ALI). Soluble epoxide hydrolase (sEH) is suggested as a vital pharmacologic target for inflammation. In this study, we determined whether a sEH inhibitor, AUDA, exerts lung protection in lipopolysaccharide (LPS)-induced ALI in mice. Methods Male BALB/c mice were randomized to receive AUDA or...

Effects of omega-3 fatty acid nutrition on mortality in septic patients: a meta-analysis of randomized controlled trials

Background A previous systematic review and meta-analysis reported that omega-3 fatty acids nutrition may reduce mortality in septic patients. As new randomized controlled trials began to accumulate, we conducted an update. Methods A PubMed database was searched through Feb 2016, and randomized controlled trials comparing omega-3 fatty acids with control were selected by two...

The spin-dependent transport properties of zigzag α-graphyne nanoribbons and new device design

Yao AuthorsSearch for Yun Ni in:Nature Research journals • PubMed • Google ScholarSearch for Xia Wang in:Nature Research journals • PubMed • Google ScholarSearch for Wei Tao in:Nature Research journals

Robust aptamer–polydopamine-functionalized M-PLGA–TPGS nanoparticles for targeted delivery of docetaxel and enhanced cervical cancer therapy

Sheng,4 Gan Liu,2 Wei Tao,1,2 Lin Mei1,2 1School of Life Sciences, Tsinghua University, Beijing, 2Graduate School at Shenzhen, Tsinghua University, Shenzhen, 3School of Materials Science and Engineering

Ranibizumab for macular edema secondary to retinal vein occlusion: a meta-analysis of dose effects and comparison with no anti-VEGF treatment

Background To compare the efficacy and tolerability of intravitreal ranibizumab (IVR) 0.5 mg or 0.3 mg with non-anti-vascular endothelial growth factor (VEGF), and to compare the efficacy of IVR 0.5 mg with IVR 0.3 mg in the treatment of macular edema secondary to retinal vein occlusion. Methods Relevant studies were selected after an extensive search using the PubMed, EMBASE...

Multi-scale Adaptive Computational Ghost Imaging

In some cases of imaging, wide spatial range and high spatial resolution are both required, which requests high performance of detection devices and huge resource consumption for data processing. We propose and demonstrate a multi-scale adaptive imaging method based on the idea of computational ghost imaging, which can obtain a rough outline of the whole scene with a wide range...

Approach to determine the diversity of Legionella species by nested PCR-DGGE in aquatic environments

In this study, we describe a nested PCR-DGGE strategy to detect Legionella communities from river water samples. The nearly full-length 16S rRNA gene was amplified using bacterial primer in the first step. After, the amplicons were employed as DNA templates in the second PCR using Legionella specific primer. The third round of gene amplification was conducted to gain PCR...

Synergistic effects of dimethyloxallyl glycine and recombinant human bone morphogenetic protein-2 on repair of critical-sized bone defects in rats

Huang Jie-yuan Zhang Wei-tao Jia Jing Wang Chang-sheng Liu Xiao-lin Li OPEN In bone remodeling, osteogenesis is closely coupled to angiogenesis. Bone tissue engineering using multifunctional bioactive ... Ding, Jie-yuan Zhang, Jia-qing Cao, Jing-huan Huang and Wei-tao Jia helped revise the manuscript. All authors reviewed the manuscript. Additional Information Competing financial interests: The authors

Weak cation exchange magnetic beads coupled with matrix-assisted laser desorption ionization-time of flight-mass spectrometry in screening serum protein markers in osteopenia

The present study aimed at investigating the weak cation magnetic separation technology and matrix-assisted laser desorption ionization-time of flight-mass spectrometry (MALDI-TOF-MS) in screening serum protein markers of osteopenia from ten postmenopausal women and ten postmenopausal women without osteopenia as control group, to find a new method for screening biomarkers and...

Genotypic Distribution and Phylogenetic Characterization of Enterocytozoon bieneusi in Diarrheic Chickens and Pigs in Multiple Cities, China: Potential Zoonotic Transmission

This study investigated diarrheic broiler and layer chickens (<50 days; n = 14) and pigs of three age groups (preweaned <30 days, weaned ≈30 to 60 days, and growing >60 days; n = 64) for E. bieneusi genotypes in northeast China and evaluated the potential roles of chickens and pigs in zoonotic transmission of microsporidiosis. Two 45-day-old layer chickens in city Jixi...