Long Wei

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BACKGROUND Procalcitonin algorithms may reduce antibiotic use for acute respiratory tract infections (ARIs). We undertook an individual patient data meta-analysis to assess safety of this approach in different ARI diagnoses and different clinical settings. METHODS We identified clinical trials in which patients with ARI were assigned to receive(More)
Grassland ecosystems account for approximately 32% of global natural vegetation (Parton et al., 1995). China has some of the most plentiful grassland resources in the world and grasslands are one of the most important renewable resources in arid and semi-arid regions of North China (e.g. Inner Mongolia). In recent decades, intense human activities, such as(More)
Poplar plantation is the most dominant broadleaf forest type in northern China. Since the mid-1990s plantation was intensified to combat desertification along China's northwestern border, i.e., within Inner Mongolia (IM). This evoked much concern regarding the ecological and environmental effects on areas that naturally grow grass or shrub vegetation. To(More)
Evapotranspiration (ET) is an essential component of global energy and the water balance. Many important ecosystem processes, such as vegetation photosynthesis, soil water content, biogeochemical cycling and energy partitioning, are all affected by ET (Wever et al., 2002). However, the magnitude and dynamics of ET vary greatly with plant functional type,(More)
— Recently, there has been increasing interest in extending relational query processing to efficiently support extraction operators, such as dictionaries and regular expressions, over text data. Many text processing queries are sophisticated in that they involve multiple extraction and join operators, resulting in many possible query plans. However, there(More)
Keywords: Dryland ET PenmaneMonteith model Soil water potential Vapor pressure deficit Water vapor fluxes a b s t r a c t Understanding the regulation of ecosystem ET is crucial to comprehend present and potential future vegetation and water availability in arid environments. We compared ET data from eddy-covariance flux measurements in two semiarid(More)
In designing large-sized volume type phased array coils for human head imaging at ultrahigh fields, e.g., 7T, minimizing electromagnetic coupling among array elements is technically challenging. A new decoupling method based on induced current compensation or elimination (ICE) for a microstrip line planar array has recently been proposed. In this study, an(More)
As one of the phosphoglucan phosphatases, starch excess 4 (SEX4) encoded by SEX4 gene has recently been intensively studied because of its vital role in the degradation of leaf starch. In this study, we isolated and chromosomally mapped barley SEX4, characterized its gene and protein structure, predicted the cis-elements of its promoter, and analysed its(More)
We characterized two high-molecular-weight glutenin subunit (HMW-GS) variants from Eremopyrum bonaepartis, determined their complete open reading frames, and further expressed them in a bacterial system. The variants have many novel structural features compared with typical subunits encoded by Glu-1 loci: 1Fx3.7 and 1Fy1.5 exhibit hybrid properties of x-(More)
INTRODUCTION Whether the inflammatory biomarker procalcitonin provides prognostic information across clinical settings and different acute respiratory tract infections (ARIs) is poorly understood. In the present study, we investigated the prognostic value of admission procalcitonin levels to predict adverse clinical outcome in a large ARI population. (More)