Search Results - "Arnal, Romain"

Ab initio reconstruction from one‐dimensional crystal diffraction data by Arnal, Romain D., Millane, Rick P.

“…Filamentary and rod‐like assemblies are ubiquitous in biological systems, and single such assemblies can form one‐dimensional (1D) crystals. New, intense X‐ray…”
Get full text

Macromolecular phasing using diffraction from multiple crystal forms by Metz, Markus, Arnal, Romain D., Brehm, Wolfgang, Chapman, Henry N., Morgan, Andrew J., Millane, Rick P.

“…A phasing algorithm for macromolecular crystallography is proposed that utilizes diffraction data from multiple crystal forms – crystals of the same molecule…”
Get full text

Uniqueness of the macromolecular crystallographic phase problem by Millane, Rick P., Arnal, Romain D.

“…Uniqueness of the phase problem in macromolecular crystallography, and its relationship to the case of single particle imaging, is considered. The…”
Get full text

The phase problem for two‐dimensional crystals. I. Theory by Arnal, Romain D., Millane, Rick P.

“…Properties of the phase problem for two‐dimensional crystals are examined. This problem is relevant to protein structure determination using diffraction from…”
Get full text

Prevalence and predictors of penile nodules in French Guiana's sole prison facility by Nacher, Mathieu, Ayhan, Gulen, Arnal, Romain, Huber, Florence, Basurko, Celia, Pastre, Agathe, Falissard, Bruno, About, Vincent

“…Penile implants or nodules are objects inserted beneath the skin of the penis mostly for erotic purposes. The procedure is painful and there may be…”
Get full text

Suicide risk among prisoners in French Guiana: prevalence and predictive factors by Ayhan, Gülen, Arnal, Romain, Basurko, Célia, About, Vincent, Pastre, Agathe, Pinganaud, Eric, Sins, Dominique, Jehel, Louis, Falissard, Bruno, Nacher, Mathieu

“…Suicide rates in prison are high and their risk factors are incompletely understood. The objective of the present study is to measure the risk of suicide and…”
Get full text

High prevalence rates for multiple psychiatric conditions among inmates at French Guiana's correctional facility: diagnostic and demographic factors associated with violent offending and previous incarceration by Nacher, Mathieu, Ayhan, Gulen, Arnal, Romain, Basurko, Célia, Huber, Florence, Pastre, Agathe, Jehel, Louis, Falissard, Bruno, About, Vincent

“…French Guiana has the highest incarceration rate among French territories, it is higher than that of Brazil, Colombia or Venezuela. It is well known that…”
Get full text

The phase problem for two‐dimensional crystals. II. Simulations by Arnal, Romain D., Zhao, Yun, Mitra, Alok K., Spence, John C. H., Millane, Rick P.

“…Phasing of diffraction data from two‐dimensional crystals using only minimal molecular envelope information is investigated by simulation. Two‐dimensional…”
Get full text

Ab initio phasing using diffraction data from different crystal forms by Arnal, Romain D., Metz, Markus, Morgan, Andrew J., Chapman, Henry N., Millane, Rick P.

“…The crystallographic phase problem is routinely solved when imaging small molecules but remains a key component and difficult step in protein crystallography…”
Get full text

Iterative projection algorithms for solving constraint satisfaction problems: Effect of constraint convexity by Millane, Rick P., Taylor, Joshua T., Arnal, Romain D., Wojtas, David H., Clare, Richard M.

“…Many inverse problems in imaging involve solving an optimization problem. In many cases, the problem is high-dimensional and non-convex, requiring the solution…”
Get full text

Macromol­ecular phasing using diffraction from multiple crystal forms by Metz, Markus, Arnal, Romain D., Brehm, Wolfgang, Chapman, Henry N., Morgan, Andrew J., Millane, Rick P.

“…A phasing algorithm for protein crystallography using diffraction data from multiple crystal forms is proposed. The algorithm is evaluated by simulation, and…”
Get full text

Post-Traumatic Stress Disorder among Incomers in Remire-Montjoly Prison, French Guiana by Arnal, Romain, Ayhan, Gülen, Pinganaud, Éric, Basurko, Célia, Jehel, Louis

“…Despite the recent interest in psychiatric illness in prison, the psychopathology of the Remire-Montjoly prison population remains largely unknown. Subject to…”
Get more information

Phase retrieval for randomly terminated finite crystals by Chen, Joe P. J., Kirian, Rick A., Bean, Richard J., Beyerlein, Kenneth R., Barthelmess, Miriam, Yoon, Chun Hong, Wang, Fenglin, Capotondi, Flavio, Pedersoli, Emanuele, Barty, Anton, Chapman, Henry N., Bones, Philip J., Arnal, Romain D., Millane, Rick P., Spence, John C. H.

“…Abstract only…”
Get full text

Phase retrieval for 1D and 2D crystals by Arnal, Romain D., Millane, Rick P.

“…The extreme intensity and extremely short x-ray pulses produced by x-ray free electron lasers (XFELs), so-called 4th generation x-ray sources, are opening new…”
Get full text

Progress towards imaging biological filaments using X-ray free-electron lasers by Arnal, Romain D., Wojtas, David H., Millane, Rick P.

“…X-ray free-electron lasers (XFELs) are opening new frontiers in structural biology. The extreme brilliance of these highly coherent X-ray sources allows for…”
Get full text

The phase problem with structured sampling by Arnal, Romain D., Millane, Rick P.

“…The phase problem is a main limitation in diffraction imaging. Uniqueness properties of the phase problem are important, and are well characterised for…”
Get full text

Uniqueness for ab initio phase retrieval in macromolecular X-ray crystallography by Arnal, Romain D., Millane, Rick P.

“…Protein X-ray crystallography, the determination of three-dimensional structures of protein molecules from crystal X-ray diffraction data, requires determining…”
Get full text

Extreme imaging: Macromolecular imaging using x-ray free-electron lasers by Millane, Rick P., Wojtas, David H., Arnal, Romain D.

“…X-ray free-electron lasers are new x-ray sources that are revolutionising high resolution molecular imaging. These sources produce extremely bright and…”
Get full text

Towards a differential diagnostic of PTSD using cognitive computing methods by Howard, Newton, Jehel, Louis, Arnal, Romain

“…The aim of this work is to construct a predictive algorithm based on linguistic computation to predict Post Traumatic Stress Disorder (PTSD) and comorbid…”
Get full text

Analysis of Fibrous Assembly Orientations from XFEL Diffraction Data by Wojtas, David H., Seuring, Carolin, Ayyer, Kartik, Arnal, Romain D., Meents, Alke, Mossou, Estelle, Pena, Gisel, Xavier, P. Lourdu, Barthelmess, Miriam, Forsyth, V. Trevor, Barty, Anton, Chapman, Henry N., Millane, Rick P.

“…The application of a new generation of x-ray sources called X-ray Free Electron Lasers (XFELs) to diffractive imaging has allowed structural studies of…”
Get full text