University of Lorraine

About: University of Lorraine is a education organization based out in Nancy, France. It is known for research contribution in the topics: Population & Context (language use). The organization has 11942 authors who have published 25010 publications receiving 425227 citations. The organization is also known as: Lorraine University.

Cytoreductive Surgery With or Without Hyperthermic Intraperitoneal Chemotherapy for Gastric Cancer With Peritoneal Metastases (CYTO-CHIP study): A Propensity Score Analysis.

Abstract: PURPOSEGastric cancer (GC) with peritoneal metastases (PMs) is a poor prognostic evolution. Cytoreductive surgery (CRS) yields promising results, but the impact of hyperthermic intraperitoneal chem...

Clinical outcome endpoints in heart failure trials: a European Society of Cardiology Heart Failure Association consensus document.

Abstract: Endpoint selection is a critically important step in clinical trial design. It poses major challenges for investigators, regulators, and study sponsors, and it also has important clinical and practical implications for physicians and patients. Clinical outcomes of interest in heart failure trials include all-cause mortality, cause-specific mortality, relevant non-fatal morbidity (e.g. all-cause and cause-specific hospitalization), composites capturing both morbidity and mortality, safety, symptoms, functional capacity, and patient-reported outcomes. Each of these endpoints has strengths and weaknesses that create controversies regarding which is most appropriate in terms of clinical importance, sensitivity, reliability, and consistency. Not surprisingly, a lack of consensus exists within the scientific community regarding the optimal endpoint(s) for both acute and chronic heart failure trials. In an effort to address these issues, the Heart Failure Association of the European Society of Cardiology (HFA-ESC) convened a group of expert heart failure clinical investigators, biostatisticians, regulators, and pharmaceutical industry scientists (Nice, France, 1213 February 2012) to evaluate the challenges of defining heart failure endpoints in clinical trials and to develop a consensus framework. This report summarizes the groups recommendations for achieving common views on heart failure endpoints in clinical trials.

Two-Dimensional Indium Selenides Compounds: An Ab Initio Study.

Abstract: We use first-principle calculations to investigate the electronic structure of InSe and In2Se3. The interlayer binding energy is found to be in the same range as for other 2D systems, and the monolayers are found to be dynamically stable, which suggest the possibility to obtain them as isolated layers. The GW approximation including spin-orbit is used to obtain the bandgaps, which are in the range relevant for application in electronics. Also, it is shown that an electric field perpendicular to the layers can induce a semiconductor to metal transition in this family of compounds.

Bottom-Up Confined Synthesis of Nanorod-in-Nanotube Structured Sb@N-C for Durable Lithium and Sodium Storage

Abstract: The deployment of renewable energy technologies critically depends on the low-cost and scalable energy storage systems. Lithium-ion batteries (LIBs), which have revolutionized and dominated the market of portable electronics, are emerging as one of the most encouraging choices as reliable energy storage device.[1–3] Nevertheless, the transition from portable electronics to electric vehicles (EVs) and smart grid still requires a substantial improvement in current-level energy and power density of LIBs. Therefore, pursuing novel electrode materials with high theoretical capacity becomes of great importance.[4] In the case of anode materials, alloy anode materials have triggered paramount research interests due to their high theoretical capacities and safe operation potential.[5–10] Among them, antimony (Sb) is regarded as a promising candidate because of its high theoretical capacity of 660 mA h g−1, low polarization (≈0.2 V), and suitable working voltage (0.8–0.9 V vs Li+/Li).[5] Additionally, Sb is also an attractive anode material for sodiumion batteries (SIBs), which are brought as a substitute or even a replacement to LIBs concerning the limited lithium resource.[11] In spite of the above-mentioned merits, the relative low conductivity and large volume expansion of Sb eventually result in the particle pulverization and loss of electrical contact along with rapid capacity decay, which severely restrict its practical longterm application.[12–16] In recent years, much efforts have been made to address the inferior electrochemical performance issues by designing novel architectures (such as nanowire arrays[17] or hollow structure[18–20]) or introducing carbonaceous materials to enhance the conductivity.[21–38] For instance, Liu et al. recently synthesized hollow Sb@C yolk–shell spheres as anode materials by a new nanoconfined galvanic replacement method, showing much improved electrochemical performance in both LIBs and SIBs.[20] Wang et al. demonstrated that the oxygen-deficient TiO2 could work as a perfect interface material for high-performance Sb anode, and the achieved double-wall crystalline Sb@ amorphous TiO2−x nanotubes displayed a reversible capacity of 300 mA h g−1 after 1000 cycles at 2.64 A g−1 in SIBs.[29] Another worth-mentioning work accomplished by Lou and coworkers is to design and construct Sb@C coaxial nanotubes, Antimony (Sb) has emerged as an attractive anode material for both lithium and sodium ion batteries due to its high theoretical capacity of 660 mA h g−1. In this work, a novel peapod-like N-doped carbon hollow nanotube encapsulated Sb nanorod composite, the so-called nanorod-in-nanotube structured Sb@N-C, via a bottom-up confinement approach is designed and fabricated. The N-doped-carbon coating and thermal-reduction process is monitored by in situ high-temperature X-ray diffraction characterization. Due to its advanced structural merits, such as sufficient N-doping, 1D conductive carbon coating, and substantial inner void space, the Sb@N-C demonstrates superior lithium/ sodium storage performance. For lithium storage, the Sb@N-C exhibits a high reversible capacity (650.8 mA h g−1 at 0.2 A g−1), excellent long-term cycling stability (a capacity decay of only 0.022% per cycle for 3000 cycles at 2 A g−1), and ultrahigh rate capability (343.3 mA h g−1 at 20 A g−1). For sodium storage, the Sb@N-C nanocomposite displays the best long-term cycle performance among the reported Sb-based anode materials (a capacity of 345.6 mA h g−1 after 3000 cycles at 2 A g−1) and an impressive rate capability of up to 10 A g−1. The results demonstrate that the Sb@N-C nanocomposite is a promising anode material for high-performance lithium/sodium storage.