Search results for "HP"
showing 10 items of 1505 documents
TNT:n ja RDX:n määrittäminen HPLC:lla ja menetelmän validointi
2009
Vaļasprieku portāls
2021
Kvalifikācijas darbā aprakstīta sistēmas “Vaļasprieku portāls” izstrāde. Sistēmā var atrast visu nepieciešamo informāciju par kādu darbības veidu. Lietotāji var dalīties savā pieredzē un zināšanās kādā vaļaspriekā, uzrakstīt savu viedokli un recenziju par kādu mākslas veidu un vaļasprieku, kā arī savus padomus un iespaidus no ar vaļasprieku saistīto preču iegādes, kas palīdz citiem cilvēkiem izdarīt izvēli. Sistēma arī ir izveidota gan lietotājiem, kuri vēlas pārdot savus pašrocīgi izgatavotos izstrādājumus, gan tiem, kuri grib šo izstrādājumus iegādāties.
Evaluation of HBs, HBc, and frCP virus-like particles for expression of human papillomavirus 16 E7 oncoprotein epitopes.
2002
<i>Objectives:</i> In an attempt to develop virus-like particles (VLPs) as experimental vaccine against human papilloma virus (HPV)-induced tumours, the HPV16 E7 oncoprotein epitopes spanning amino acid (aa) residues 35–98 were expressed on three proteins capable of VLP formation: hepatitis B virus (HBV) surface (HBs) and core (HBc) antigens, and RNA phage fr coats (frCP). <i>Methods:</i> The profile of immunoglobulin isotypes induced in Balb/C mice after immunization with purified chimeric proteins was studied. <i>Results:</i> The HBs*-E7(35–54) protein expressing E7 residues 35–54 between residues 139 and 142 of the HBs carrier formed HBs-like particles…
Visual Contrast Modulates Operant Learning Responses in Larval Zebrafish.
2018
The larval zebrafish is a promising vertebrate model organism to study neural mechanisms underlying learning and memory due to its small brain and rich behavioral repertoire. Here, we report on a high-throughput operant conditioning system for zebrafish larvae, which can simultaneously train 12 fish to associate a visual conditioned pattern with electroshocks. We find that the learning responses can be enhanced by the visual contrast, not the spatial features of the conditioned patterns, highlighted by several behavioral metrics. By further characterizing the learning curves as well as memory extinction, we demonstrate that the percentage of learners and the memory length increase as the co…
Few-body insights of multiquark exotic hadrons
2018
In this contribution we discuss the adequate treatment of the $4-$ and $5-$body dynamics within a constituent quark framework. We stress that the variational and Born-Oppenheimer approximations give energies rather close to the exact ones, while the diquark approximation might be rather misleading. Hall-Post inequalities provide very useful lower bounds that exclude possible stable states for some mass ratios and color wave functions.
Underwater Multirobot Cooperative Intervention MAC Protocol
2020
This work introduces a Medium Access Control (MAC) protocol designed to allow a group of underwater robots that share a wireless communication channel to effectively communicate with each other. The goal of the Underwater Multirobot Cooperative Intervention MAC (UMCI-MAC) protocol presented in this work is to minimize the end to end delay and the jitter. The access to the medium in UMCI-MAC follows a Time Division Multiple Access (TDMA) strategy which is arbitrated by a master, which also has the capability to prioritize the transmission of some nodes over the rest of the network. Two experiments have been carried out with a team of four Autonomous Underwater Vehicles (AUV) in order to comp…
Trajectory Design and Resource Allocation for Multi-UAV Networks : Deep Reinforcement Learning Approaches
2023
The future mobile communication system is expected to provide ubiquitous connectivity and unprecedented services over billions of devices. The unmanned aerial vehicle (UAV), which is prominent in its flexibility and low cost, emerges as a significant network entity to realize such ambitious targets. In this work, novel machine learning-based trajectory design and resource allocation schemes are presented for a multi-UAV communications system. In the considered system, the UAVs act as aerial Base Stations (BSs) and provide ubiquitous coverage. In particular, with the objective to maximize the system utility over all served users, a joint user association, power allocation and trajectory desi…
Low mimosine content and nutrient-rich foliage of two Leucaena leucocephala varieties: a potential fodder resource in Mediterranean agroforestry syst…
2022
Leucaena leucocephala is worldwide used for wood production, reforestation and for feeding livestock. To assess the potential use of leucaena for animal nutrition, we analysed the composition of methanolic extracts of leaf samples of two varieties occurring in Sicily (Mediterranean area), also determining the presence of mimosine.
Excess electronic recoil events in XENON1T
2020
We report results from searches for new physics with low-energy electronic recoil data recorded with the XENON1T detector. With an exposure of 0.65 t-y and an unprecedentedly low background rate of $76\pm2$ events/(t y keV) between 1 and 30 keV, the data enables sensitive searches for solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter. An excess over known backgrounds is observed at low energies and most prominent between 2 and 3 keV. The solar axion model has a 3.4$\sigma$ significance, and a 3D 90% confidence surface is reported for axion couplings to electrons, photons, and nucleons. This surface is inscribed in the cuboid defined by $g_{ae}<3.8 \times 10^{-12}$,…
Räjähdysaineita sisältävien maanäytteiden esikäsittelymenetelmien vertailu
2012
Räjähdysaineiden kulkeutuminen maaperään ja vesitöihin aiheuttaa merkittävän ympäristöriskin, sillä toksikologisissa tutkimuksissa räjähdysaineiden on havaittu aiheuttavan monia terveydellisiä haittoja ja ne ovat myrkyllisiä eläville organismeille. Tämän johdosta räjähdysaineita sisältävien ympäristönäytteiden analysointiin on kehitetty monia menetelmiä, jotta koko ekosysteemiä kohtaavat vahingot voitaisiin tunnistaa ja suorittaa kunnostustoimenpiteitä kontaminoituneilla alueilla. Tässä Pro gradu-tutkielmassa tarkastellaan räjähdysaineita, niiden ympäristö- ja terveysvaikutuksia sekä räjähdysaineita sisältävien maanäytteiden uuttamista ja analysointia. Tutkielmassa selvitetään nestekromatog…