Abstract
Objective: Axial motor features are common in Parkinson's disease (PD). These include gait impairment and postural abnormalities, such as camptocormia. The response of these symptoms to deep brain stimulation (DBS) is variable and difficult to assess objectively. For the first time, this study analyzes the treatment outcomes of two PD patients with camptocormia that underwent bilateral subthalamic nucleus (STN)-DBS evaluated with disruptive technologies. Patients and methods: Two patients with PD and camptocormia who underwent STN-DBS were included. Gait parameters were quantitatively assessed before and after surgery by using the NeuroKinect system and the camptocormia angle was measured using the camptoapp. Results: After surgery, patient 1 improved 29 points in the UPDRS-III. His camptocormia angle was 68 degrees before and 38 degrees after surgery. Arm and knee angular amplitudes (117.32 +/- 7.47 vs 134.77 +/- 2.70; 144.51 +/- 7.47 vs 169.08 +/- 3.27) and arm swing (3.59 +/- 2.66 vs 5.40 +/- 1.76 cm) improved when compared with his pre-operative measurements. Patient 2 improved 22 points in the UPDRS-III after surgery. Her camptocormia mostly resolved (47 degrees before to 9 degrees after surgery). Gait analysis revealed improvement of stride length (0.29 +/- 0.03 vs 0.35 +/- 0.03 m), stride width (18.25 +/- 1.16 vs 17.9 +/- 0.84 cm), step velocity (0.91 +/- 0.57 vs 1.33 +/- 0.48 m/s), arm swing (4.51 +/- 1.01 vs 7.38 +/- 2.71 cm) and arm and hip angular amplitudes (131.57 +/- 2.45 degrees vs 137.75 +/- 3.18; 100.51 +/- 1.56 vs 102.18 +/- 1.77 degrees) compared with her preoperative results. Conclusion: The gait parameters and camptocormia of both patients objectively improved after surgery, as assessed by the two quantitative measurement systems. STN-DBS might have a beneficial effect on controlling axial posturing and gait, being a potential surgical treatment for camptocormia in patients with PD. However, further studies are needed to derive adequate selection criteria for this patient population.

Abstract
The latest forecasts for the Portuguese tourist industry show that it will represent 16% of the Portuguese GNP very soon and, for 2017, the State Statistical Office registered over 3.5 million guests visiting the North of Portugal and around 7.4 million overnight stays in the region's tourist accommodation, which makes it safe to say that investing in projects that foster a common language in business communication will not only result in tangible financial gains but also in improved multi-cultural and multilingual understanding. Companies need, thus, to communicate seamlessly in a fully internationalised and digital world challenges companies to meet the need to systematise and harmonise language to properly convey meaning, thus promoting successful business undertakings. Such a need, a direct consequence of the phenomenon of globalisation and internationalisation of scientific and technological knowledge, becomes clear in a region with all the necessary elements to anchor sustainable growth, namely the four locations classified as UNESCO's World Heritage sites (Porto's historic center, Alto Douro wine region, Oa Valley Archeological Park and GuimarSes Historic Center). "WiTo - Do you speak wine tourism?" is a project, supported by a PhD thesis, that aims at creating an electronic multilingual thesaurus the wine tourism experts will consider a useful tool for communicating with different publics (experts and non-experts). Thus, we will have to determine which subjects and technical know-how are considered core, complementary and cross-sectional to wine tourism, leading to the conceptual representation of wine tourism specialised language (which, in turn, will allow for structuring and harmonization of the linguistic heritage clearly visible in the area's terminology). This project aims at providing the necessary basis for optimising knowledge transfer (thus promoting a faster flow of technical and scientific information) and its implementation in tourism information systems and electronic support platforms. This article aims at giving an overview of the current research in this area and presenting WiTo by highlighting some of its preliminary results and discussing some of the open questions.

Abstract
In this paper we describe the design of a dual polarized packaged patch antenna for 5G communications with improved isolation and bandwidth for Ka-band. The results were validated using FEM and Momentum co-simulations in ADS. The novelty of the approach is the use of parasitic elements in the same layer to circumvent bandwidth limitations, thereby reducing the layer count in contrast to previous designs, combined with a differential feeding technique for improved isolation and radiation pattern stability, albeit at the expense of an increased complexity in the matching process. A peak gain of 5 dBi, isolation above 40 dB and a radiation efficiency of 60% were obtained. © 2019 IEEE.

Abstract

Abstract
The effects of optimal dimensioning and integration of distributed generation (DG) on an electricity distribution system (DS) from a probabilistic viewpoint is presented in this paper, as a new contribution to earlier studies. The proposed methodology pays special attention to preventing reverse power flow at substation as a consequence of excessive integration of renewable energy based DG. As the analysis of large amounts of data typically measured on an annual basis could be exhausting from a computational perspective, a methodology based on estimating the potential of wind and solar resources is applied; from this procedure, those months of highest renewable potential are selected so that indirectly those situations with probability of reverse power flow at substation are considered. After this, time series of load demand per node and phase are generated using typical profiles and the corresponding peak-load expected. Finally, all this information is introduced on an optimization algorithm based on a genetic algorithm in order to minimize the net present cost over the project lifetime, obtaining the type and number of photovoltaic (PV) panels and wind turbines (WTs) to be installed. This approach allows integrating detailed mathematical models of DG related to PV and wind generation, including specific factors frequently reported by the manufacturers such as temperature coefficients, nominal operating cell temperature, particular WT power curves, and variable efficiency of power converter, among other characteristics. The proposed method is illustrated by studying a DS supposed to be located in Zaragoza, Spain, with 35 nodes under unbalanced conditions, with residential as well as small, medium, and large commercial electricity demands. Focusing our attention on the month of February, due to its high renewable potential, the proposed technique was applied resulting in a system mainly based on wind energy of at least 40% of the substation capacity. This model could be used to perform the renewable energy integration analysis on DS, starting from typical load profiles, hourly estimations of solar and wind resources, and data frequently provided by PV panels and WT manufacturers.

Abstract
The use of mobile robots is growing every day. Path planning algorithms are needed to allow the coordination of several robots, and make them travel with the least cost and without collisions. With this emerged the interest in studying some path planning algorithms, in order to better understand the operation of each one when applied in this type of robots. The objective of this paper is to present a state of the art survey of some algorithms of path planning for mobile robots. A brief introduction on mobile robots and trajectory planning algorithms is made. After, the basis of each algorithm is explained, their relative advantages and disadvantages are presented and are mentioned areas of application for each of them. This study was developed in order to implement some of these algorithms in the near future, with the objective to find out their relative advantages and disadvantages, and in which situations their implementation is more adequate.