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Acquisition of cell identity in plants relies strongly on positional information, hence cell-cell communication and inductive signalling are instrumental for developmental patterning. During Arabidopsis embryogenesis, an extra-embryonic cell is specified to become the founder cell of the primary root meristem, hypophysis, in response to signals from(More)
Optimum coherent receivers for CPM-signals have in general a high degree of complexity. Especially for the most interesting schemes that offer significant power and bandwidth efficiency with smoothed frequency pulses, o r that implement a n additional convolutional code, the number of parallel filters a t the receiver input, and the number of memory-states(More)
Tightly controlled gene expression is a hallmark of multicellular development and is accomplished by transcription factors (TFs) and microRNAs (miRNAs). Although many studies have focused on identifying downstream targets of these molecules, less is known about the factors that regulate their differential expression. We used data from high spatial(More)
The sodium-vitamin C co-transporter SVCT2 is primarily responsible for the accumulation of the important antioxidant ascorbate into brain cells. In vitro studies have demonstrated strong expression of this transporter in cultured astrocytes, whereas in situ hybridization analysis has so far detected SVCT2 only in neurons. In the present study, we examined(More)
Polyphenoloxidase (PPO) from Chinese pear ( Pyrus pyrifolia Nakai) was characterized using catechol as a substrate. PPO had a V(max) of 289.2 units/min and a K(m) of 3.8 mmol/L, which indicates that P. pyrifolia Nakai PPO has a great affinity for catechol. The catalyzing reaction velocity was proportional to the PPO concentration. The optimum pH and(More)
Abshnct-By means of a signal representation in a signal space spanned by a few time-limited exponential basis-functions, and data-aided maximum-liltelhood techniques, novel methods for the joint and nosioint estimation of carrier-phase and symbolW i g for general coherent CPM receivers am! pmposed. The estimators are quite simple, especially in obtaining(More)
The paper deals with narrow band power line channel for low voltage access network in China. Major channel characteristics such as access impedances, interferences, and attenuations for frequency between 30-500 kHz are evaluated based on measurements results in a typical urban underground network. Coupling mode has a significant impact on the performance of(More)
Fibroblast growth factor 1 (FGF1) is an autocrine/paracrine regulator whose binding to heparan sulphate proteoglycans effectively precludes its circulation. Although FGF1 is known as a mitogenic factor, FGF1 knockout mice develop insulin resistance when stressed by a high-fat diet, suggesting a potential role in nutrient homeostasis. Here we show that(More)
The prevalence of obesity is a growing health problem. Obesity is strongly associated with several comorbidities, such as non-alcoholic fatty liver disease, certain cancers, insulin resistance, and type 2 diabetes, which all reduce life expectancy and life quality. Several drugs have been put forward in order to treat these diseases, but many of them have(More)
AIM As a tumor suppressor, FEN1 plays an essential role in preventing tumorigenesis. Two functional germline variants (-69G>A and 4150G>T) in the FEN1 gene have been associated with DNA damage levels in coke-oven workers and multiple cancer risk in general populations. However, it is still unknown how these genetic variants are involved in breast cancer(More)