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Performance Evaluation of NL-BMD Precoding over Analog-Digital Hybrid Beamforming for High SHF Wide-Band Massive MIMO in 5G

Massive multiple-input multiple-output (MIMO) technology is a key enabler in 5G. A configuration combining analog beamforming and digital MIMO signal processing for multi-beam multiplexing, i.e. analog-digital hybrid beamforming, is one of the promising approaches of massive MIMO. With the configuration, we can mitigate the problems of complexity and power consumption, which are ...

Zelltherapie am Augenhintergrund – gestern, heute, morgen

Der gemeinsame Endpunkt vieler Netzhautdegenerationen ist ein Zelluntergang im retinalen Pigmentepithel und/oder der neurosensorischen Retina und ein damit verbundener irreversibler Visusverlust. Therapieansätze in fortgeschrittenen Erkrankungsstadien müssen folglich ebenfalls den Ersatz dieser verloren gegangenen Zellen und Gewebe adressieren. Hier zeichnen sich in den letzten ...

One-pass MapReduce-based clustering method for mixed large scale data

Big data is often characterized by a huge volume and a mixed types of attributes namely, numeric and categorical. K-prototypes has been fitted into MapReduce framework and hence it has become a solution for clustering mixed large scale data. However, k-prototypes requires computing all distances between each of the cluster centers and the data points. Many of these distance ...

Improving the usability of spatial point process methodology: an interdisciplinary dialogue between statistics and ecology

The last few decades have seen an increasing interest and strong development in spatial point process methodology, and associated software that facilitates model fitting has become available. A lot of this progress has made these approaches more accessible to users, through freely available software. However, in the ecological user community the methodology has only been slowly ...

Using Empirical Data to Estimate Potential Functions in Commodity Markets: Some Initial Results

This paper focuses on estimating real and quantum potentials from financial commodities. The log returns of six common commodities are considered. We find that some phenomena, such as the vertical potential walls and the time scale issue of the variation on returns, also exists in commodity markets. By comparing the quantum and classical potentials, we attempt to demonstrate that ...

High Photocatalytic Performance of Two Types of Graphene Modified TiO2 Composite Photocatalysts

High quality and naturally continuous structure of three-dimensional graphene network (3DGN) endow it a promising candidate to modify TiO2. Although the resulting composite photocatalysts display outstanding performances, the lacking of active sites of the 3DGN not only goes against a close contact between the graphene basal plane and TiO2 nanoparticles (weaken electron transport ...

Genotypic diversity among multidrug resistant Pseudomonas aeruginosa and Acinetobacter species at Mulago Hospital in Kampala, Uganda

Background Multidrug resistant Pseudomonas aeruginosa and Acinetobacter species are common causes of nosocomial infections worldwide. Recently we reported the occurrence of carbapenem resistant Enterobacteriaceae, P. aeruginosa and Acinetobacter species at Mulago National Referral Hospital in Kampala, Uganda, but the isolates were not analyzed for genetic relatedness. Herein we ...

International Environmental Agreements for biodiversity conservation: a game-theoretic analysis

This paper contributes to the emerging literature on International Environmental Agreements with an analysis of key characteristics for biodiversity conservation. We study three features that are specific to an international conservation agreement: the existence of a natural upper bound of conservation in each country, the importance of local benefits, and the subadditivity of the ...

Phase I study of chimeric antigen receptor modified T cells in treating HER2-positive advanced biliary tract cancers and pancreatic cancers

This phase I clinical trial (NCT01935843) is to evaluate the safety, feasibility, and activity of chimeric antigen receptor-engineered T cell (CART) immunotherapy targeting human epidermal growth factor receptor 2 (HER2) in patients with advanced biliary tract cancers (BTCs) and pancreatic cancers (PCs). Eligible patients with HER2-positive (>50%) BTCs and PCs were enrolled in the ...