Best constants in bipolar L^p-Hardy-type Inequalities

In this work we prove sharp $L^p$ versions of multipolar Hardy inequalities in the case of a bipolar potential and $p\geq 2$, which were first developed in the case $p=2$ by Cazacu (CCM 2016) and Cazacu&Zuazua (Studies in phase space analysis with applications to PDEs, 2013). Our results are sharp and minimizers do exist in the energy space. New features appear when $p>2$ compared to the linear case $p=2$ at the level of criticality of the p-Laplacian $-\Delta_p$ perturbed by a singular Hardy bipolar potential.Comment: 18 page

The Entity Registry System: Implementing 5-Star Linked Data Without the Web

Linked Data applications often assume that connectivity to data repositories and entity resolution services are always available. This may not be a valid assumption in many cases. Indeed, there are about 4.5 billion people in the world who have no or limited Web access. Many data-driven applications may have a critical impact on the life of those people, but are inaccessible to those populations due to the architecture of today's data registries. In this paper, we propose and evaluate a new open-source system that can be used as a general-purpose entity registry suitable for deployment in poorly-connected or ad-hoc environments.Comment: 16 pages, authors are listed in alphabetical orde

Design and analysis of an ATM network traffic security device

Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to [email protected], referencing the URI of the item.Includes bibliographical references: p. 77-79.Issued also on microfiche from Lange Micrographics.Not availabl

Technologies for Deviation of Asteroids and Cleaning of Earth Orbit by Space Debris

The present chapter presents the advanced design and technology of special equipment (SECSL) which uses concentrated solar light for deviation of asteroids and cleaning the space of debris. The elliptical orbit of any cosmic body as presented in Einstein’s general theory of relativity is rotating around the ellipse center. The trajectory of a cosmic body is permanently affected by the gravity of other moving cosmic bodies. In the case of asteroids (relatively small masses), orbit changes can lead to a collision with the Earth. At this very moment, our civilization has no efficient and reliable mean to destroy or divert a cosmic body heading toward the Earth. This new idea represents a “light canon” which uses concentrated solar light for deviation or vaporization of dangerous asteroids. The equipment is composed out of two parabolic mirrors (one large and one small) with the same focal point and coincident axes. The mirrors reflect the sunlight between them hence the term “concentrated solar light.” Next, a similar idea to the SECSL equipment is presented but applied to space debris caused mostly by humans and a new way of disintegrating satellites, spent rocket boosters, thrust chambers, etc. in the Earth’s atmosphere during reentry

Sonic Boom Mitigation through Shock Wave Dispersion

Lately, the interest for passenger space planes, supersonic passenger aircraft, and supersonic business jets has greatly increased. In order to mitigate the sonic boom effects at ground level, some aerospace companies proposed airplanes that have a very small transversal fuselage section or that have a curved (“shaped”) fuselage. Obviously, shaping the fuselage leads to the increase of dynamic drag and manufacturing cost. Reducing the fuselage transverse section leads to reducing the useful volume inside fuselage and increases the landing distance of aircraft. The solution presented in this chapter shows that it is theoretically and technologically possible as the shock wave to be dispersed through mechanical or electrical means. The shock wave is in fact a stationary effect generated by the move of aircraft with constant speed relatively to surrounding air. If this feature is in a way or another canceled, the shock wave is dispersing. Due to dispersion of the shock wave the ‘N’ wave at the ground is tens of times larger and the sonic boom is correspondingly lower. The shock wave dispersion system of the future could be mechanical or electrical is activated only when the supersonic aircraft/space plane is flying horizontally over community

Youth and Social Media in Transition

The Arab Transformations Project: WORK PACKAGE 8: D8.24 Acknowledgements This report was written as part of the Arab Transformations Research Project funded by the EU under Grant #320214. The authors would like to acknowledge Prof Pamela Abbott, Dr Andrea Teti, Dr Ilia Xypolia and Dr Vera Lomazzi for their feedback on earlier drafts of the report. The Arab Transformations Project is coordinated by the University of Aberdeen (UK) and includes further 11 partners: Dublin City University (DCU), Dublin, Ireland; Análisis Sociológicos Económicos y Políticos (ASEP), Madrid, Spain; Istituto per gli Studi di Politica Internazionale (ISPI), Milan, Italy; Universität Graz (UNI GRAZ), Graz, Austria; Societatea Pentru Methodologia Sondajelor Concluzia-Prim (Concluzia), Chisinau, Moldova; Centre de Recherche en Économie Appliquée pour le Développement (CREAD), Algiers, Algeria; Egyptian Centre for Public Opinion Research (BASEERA); Cairo, Egypt; Independent Institute for Administration and Civil Society Studies (IIACSS), Amman, Jordan; University of Jordan (JU), Amman, Jordan; MEDA Solutions (MEDAS), Casablanca, Morocco; Association Forum Des Sciences Sociales Appliquées (ASSF); Tunis, Tunisia.Publisher PD

Nerve Transfers for Restoring Elbow Flexion in Brachial Plexus Palsy

Nerve transfers (NT) consist in sectioning a donor nerve and connecting it to the distal stump of a recipient unrepairable nerve. For elbow flexion restoration in brachial plexus palsy (BPP) we used different NT: 1) GF motor Ulnar Nerve to Biceps nerve (Oberlin technique), 2) Double fascicular median/ulnar to biceps/brachialis nerve transfer (Mackinnon), 3) InterCostal Nerves (ICN) to MCN (+/− nerve graft), 4) Medial Pectoral Nerve (MPN) to MCN, 5) ThoracoDorsal Nerve (TDN) to MCN, 6) Spinal Accessory Nerve (SAN) to MCN transfer, 7) Phrenic Nerve (PhN) to MCN, 8) Cervical Plexus C3-C4 to MCN and 9) Contralateral C7 (CC7). I want to present my personal experience using the phrenic nerve (PhN), the intercostal nerves (ICN) and Oberlin’s technique. The aim of this retrospective study is to evaluate the results of this procedure in BPP. NT is an important goal in BPP. ICN transfer into the nerve of biceps for elbow flexion recovery is a reliable procedure in BPP. ICN transfer for triceps offers a positive alternative (Carroll transposition). Oberlin technique is simple and offers better results in a shorter amount of time and is an effective and safe option

Clinical evolution and prognosis of bleeding from gastric versus esophageal varices: comparative study

Carol Davila University of Medicine and Pharmacy, Bucharest, RomaniaIntroduction. Gastrointestinal bleeding is by far the most severe and life-threatening complication of portal hypertension in cirrhotic patients. The location of the varices is tightly bound to the management of the patient, especially as regards to the endoscopic haemostasis; hence the gastric varices have a more difficult approach than the esophageal one. Consequently the gastric variceal bleeding might have a more reserved prognosis

Microbiota signatures in type-2 diabetic patients with chronic kidney disease - A Pilot Study

The human microbiota is paramount for normal host physiology. Altered host-microbiome interactions are part of the pathogenesis of numerous common ailments. Currently, much emphasis is placed on the involvement of the microbiome in the pathogenesis of type-2 diabetes mellitus (T2DM), impaired glucose tolerance, and other metabolic disorders (i.e. obesity). Several studies found highly significant correlations of specific intestinal bacteria with T2DM. A better understanding of the role of the microbiome in diabetes and its complications might provide new insights in the development of new therapeutic principles. Our pilot study investigates the microbiota patterns in Romanian type-2 diabetic patients with diabetic kidney disease. Fecal samples were collected from type 2-diabetic patients and healthy controls and further used for bacterial DNA isolation. Using 16 rDNA qRT-PCR, we analyzed phyla abundance (Bacteroidetes, Firmicutes) as well as the relative abundance of specific bacterial groups (Lactobacillus sp., Enterobacteriaceae, Ruminococus sp., Prevotella sp., Faecalibacterium sp., Clostridium coccoides, Clostridium leptum). Our study also investigates the diabetic fungal microbiome for the first time. Furthermore, we report significant correlations between the treatment regimen and microbiota composition in diabetic nephropathy

Experimental Investigations on the Possibility to Apply the Corrugated Sheet Metal Used in the Past with Junkers Aircraft to Reduce Noise for Future European Aircraft. Other Noise Reduction Experiments for Future European Aircraft

This paper shows that corrugated skin used in the past with Junkers aircraft to increase the fuselage and wing rigidity can lead to noise reduction for future European aircraft. If the pressure side of wing which is placed above the engine is corrugated, the jet noise reflected by wing will be scattered. This way, the diffuse acoustic field has a lower intensity at ground level and correspondingly, a lower impact on community. Similarly, it is shown that if the underside of fuselage is corrugated, the noise emitted by the nose landing-gear and main landing-gear is also scattered. The existence of this effect is demonstrated by some recent measurements done inside auto-tunnels covered inside with corrugated sheet metal which indicated a reduction of maximum noise level by up to 30%. Some experiments done by the authors at low scale on an Airbus A380 wing model (scale 1:375) showed that the jet-noise reflected by the corrugated skin of wing is reduced by 4 dB in the near field. Reintroducing corrugated skin in the manufacturing process of modern aircraft is beneficial because, on the one hand, it reduces the jet and the landing-gear noise discomfort and, on the other hand, it permits manufacturing stronger frames for passenger aircraft/airliners