The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The dysregulation of maternal-fetal immune tolerance is one of the proposed mechanisms leading to preeclampsia. Galectins are key regulator proteins of the immune response in vertebrates and maternal-fetal immune tolerance in eutherian mammals. Previously we found that three genes in a Chr19 cluster encoding for human placental galectin-13 (PP13), galectin-14 and galectin-16 emerged during primate...
This paper presents a novel technique for multi-hop localization by using mobility (MLM) in mixed line-of-sight/non-line-of-sight (LOS/NLOS) environments. In MLM, nodes equipped with ultra-wideband (UWB) radio first move randomly for collecting time-of-arrival (TOA) measurements and then apply a modified biased Kalman filter (MBKF) designed for mitigating NLOS errors. NLOS bias in the measurements...
IEEE 802.15.4 specification for MAC and PHY offers a standard for general purpose wireless sensor networks. The TG4e of IEEE 802.15 is currently engaged in defining a specification particularly suitable for industrial and commercial applications, which impose severe constraints of low latency and high reliability. In this work, we present a simple MAC scheme to address these requirements of emergency...
IEEE 802.15.4 standard provides a viable MAC and PHY specification for wireless sensor networks. Performance evaluation of these networks has been reported in literature. Previous works focus largely on analyzing the CSMA/CA traffic and frame delay due to Guaranteed Time Slots (GTS) allocations. In this work, we propose a analytical model to understand and characterize the performance of GTS traffic...
With the growth of software flaws there is a rise in the demand of security embedding to achieve the goal of secure software development in a more efficient manner. Different practices are in use to keep the software intact. These practices also meant to be scrutinized for better results on the basis of the level of security, efficiency and complexity they are providing. It may also be weighted on...
Industrial sensing, monitoring and automation offer a lucrative application domain for networking and communications. Wired sensor networks have traditionally been used for these applications because such networks adequately meet two vital requirements, i.e., low latency and high reliability, needed for an industrial deployment. Wired sensor networks, however, are not very cost effective due to higher...
Efficiency of the medium access protocol is crucial for wireless sensor networks. For sensor nodes that are battery powered, it is sometimes difficulty or impractical to charge or replace exhausted battery. The sensor nodes collaborate for a common application such as environmental monitoring. The low sensing ranges result in dense networks. The medium access protocol (MAC) for wireless sensor network...
A gas chromatographic procedure has been developed for determination of cisplatin from pharmaceutical preparation, serum and urine after chemotherapy of cancer patients as platinum(II) pyrrolidinedithiocarbamate chelate. The elution was carried from the column DB-1701 (30 m × 0.32 mm i.d.) coupled with FID detection. Cu(II), Ni(II), Co(III), Mn(II), Fe(III), Zn(II) and VO(II) when present together...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.