Buscador de Tesis y publicaciones académicas

Bridging the gap between cellular and whole body imaging using Hierarchical Phase-Contrast Tomography: HiP-CT

Aikta SHARMA (ORCID: 0000-0002-5449-358X) · Paul TAFFOREAU · Theresa URBAN · Mengzhe LYU · y 8 más

Humans and other large organisms are three-dimensional multiscale biological systems where large scale function and structure are dependent on the macrostructure’s interconnectivity down to the cellular and subcellular level. Using the exceptional coherence provided by the ESRF-EBS, we have demonstrated that propagatio...

"Nano-tomography and nano-XRF analyses to investigate sociality recorded from lensoidal to spheroidal microfossils during the Archaean."

Dmitry KARPOV · Laurence LEMELLE · Grant RAMSEY · Alexandre SIMIONOVICI · y 1 más

Conditions on the early Earth were hostile with intense UV radiation, but cells still managed to adapt and thrive. The evolution of new metabolic pathways is the obvious route by which cells coped with environmental pressures, however, the social lives of cells were just as important. Cooperation and sociality are the...

Fecal indicators and microbial source tracking markers identify shared and site-specific contamination profiles at freshwater and marine beaches

Faizan Saleem · Adam Boere · Amirreza Iranmanesh · Jordan Tustin · y 5 más

Conventional recreational water quality monitoring is based on fecal indicator measurements for public health-related water postings or long-term remediation strategies. However, interpretation of recreational water quality is often limited by delayed culture results and the inability of traditional fecal indicators to...

Symmetry, scaling, and optimal time–frequency concentration: Minimising the Heisenberg uncertainty in piecewise-polynomial and wavelet dictionaries

de Leonardis, Lorenzo · Mazzoccoli, Alessandro · Vellucci, Pierluigi

In this work, we introduce a hierarchy of function classes defined on a fixed compact interval, along with tailored uncertainty operators. We establish key properties of the associated uncertainty product, showing that it is invariant under scale and translation transformations. Notably, we prove that the infimum of th...

Role of Zr-doping for stabilization of next generation positive electrode materials in Lithium Ion Batteries

Nikita VOSTROV · Mattia COLALONGO (ORCID: 0000-0003-3511-641X) · Marta MIROLO · Anna KOBETS

Layered Ni-rich lithiated metal oxides such as LiNi0.8Mn0.1Co0.1O2 (NMC811) are attractive candidates as next-generation Li-battery (LiB) positive electrode materials due to their high capacities and reasonable price. Unfortunately, the cycle life of these materials is relatively short due to structural instability. Ho...

Targeting Src/FN1 adhesion circuitry to suppress circulating tumor cell clusters and lung cancer metastasis

Ping, Lin · Jianxin, Jiang · Min, Wu

Investigation of the Hydrocarbon Pool in Fe modified ZSM-5 catalysts during Catalytic Fast Pyrolysis of Furan

Aramini MATTEO · Kerri MCKEEVER · Christoph SAHLE · Maria Asuncion MOLINA ESQUINAS · y 2 más

Zeolites such as ZSM-5 are effective catalysts for the catalytic fast pyrolysis (CFP) of lignocellulosic biomass to high value monoaromatic hydrocarbons e.g., benzene, toluene and xylenes (BTX) that can act as drop-in substitutes for fossil-derived chemicals. Studies using model compounds have shown that a hydrocarbon...

Understanding three-dimensional human brain organoids through structural analysis by X-ray scattering

Jiliang LIU · Marina ECKERMANN · Youwan MAHE

The goal of this experiment is to use X-ray imaging techniques to enhance the understanding of grown brain tissue cultures (“organoids”). To better mimic the 3d nature of tissues, organoids can be grown as spheres. However, standard imaging methods are insufficient to understand their growing process and architecture....

Is there a liquid-liquid transition in the AsS melt ?

Rajaji VINCENT · Frederic DATCHI · Laura HENRY · Max GERIN

This proposal aims at studying the liquid phase of As4S4 (realgar) in order to determine whether a first-order liquid-liquid transition (LLT) exists between a molecular and a polymeric liquid under high P-T conditions. Such examples of first-order transition in the liquid state remain scarce, and this phenomena is poor...

Effect of melt densification on minor element incorporation at Earth’s lower mantle conditions

Angelika ROSA · Georgii KOVALSKII · Lea PENNACCHIONI · Max WILKE · y 1 más

We will extend our study on the pressure and temperature induced structural changes around Sr and Y contained silicate melts and glasses relevant to magmatic processes in the deep Earth. We plan to extend our previous work on simplified glass compositions. In this follow-up, we will focus on the naturally most relevant...