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Not only ecstasy: Pouring new concepts into old vessels.
GASTRIC BYPASS SURGERY HAS GREATER EFFECT THAN CALORIE RESTRICTION ON INCRETIN RELEASE AND INSULIN SECRETION ALREADY ON POSTOP. DAY 1
Background: Gastric bypass surgery (GBP) provokes rapid improvement of type 2 diabetes (T2D) prior to significant weight loss. Thishas been attributed to altered secretion of the two incretin hormones glucagon-like peptide 1 (GLP-1) and glucose-dependentinsulinotropic polypeptide (GIP). Here we studied the effects of very low calorie diet (VLCD) vs. the immediate effects of GBP onglycaemia and inc
Alejandro Parra and Dante’s eighth circle of hell
This commentary places Alejandro Parra’s very long list of plagiarisms and data misrepresentations within the context of Dante’s classification of human foibles. The responses from two Argentinean universities are described, along with continuing examples of Parra’s misrepresentations.
ESS emittance measurements at INFN Catania
Beam characteristics at low energy are an absolute necessity for an acceptable injection in the next stage of a linear accelerator, and are also necessary to reduce beam loss and radiation inside the machine. CEA is taking part of ESS linac construction, by designing Emittance Measurement Units (EMU) for the Low Energy Beam Transport (LEBT). The EMU are designed to qualify the proton beam produced
MAX IV online LINAC model
An online linac model has been developed at MAX IV in order to enable a calculation of the properties of the linac beam based on the actual settings of the magnetic elements. The model is based on the Elegant simulation code and uses the design linac lattice file. A set of Matlab scripts fetch the actual settings of all elements via the Tango control system, pass these values on to Elegant and run
MMCUP – a secondary prevention follow-up program in spina bifida and hydrocephalus.
In persons born with myelomeningocele (MMC) secondaryprevention measures are important to survive and to retainfunction. Swedish guidelines in MMC have been developedand a follow-up programme is linked to a quality of care reg-istry, internet-based since 2012. The rationale for creation ofthis registry were to avoid complications in MMC by provid-ing a medical and health overview, facilitate the c
Coherent Excitation and Control of Plasmons on Gold Using Two-Dimensional Transition Metal Dichalcogenides
The hybrid combination of two-dimensional (2D) transition metal dichalcogenides (TMDs) and plasmonic materials open up novel means of (ultrafast) optoelectronic applications and manipulation of nanoscale light-matter interaction. However, control of the plasmonic excitations by TMDs themselves has not been investigated. Here, we show that the ultrathin 2D WSe2 crystallites permit nanoscale spatial
Phase Transitions of Oppositely Charged Colloidal Particles Driven by Alternating Current Electric Field
We study systems containing oppositely charged colloidal particles under applied alternating current electric fields (AC fields) using overdamped Langevin dynamics simulations in three dimensions. We obtain jammed bands perpendicular to the field direction under intermediate frequencies and lanes parallel with the field under low frequencies. These structures also depend upon the particle charges.
Role of the Metal Oxide Electron Acceptor on Gold-Plasmon Hot-Carrier Dynamics and Its Implication to Photocatalysis and Photovoltaics
The recent discovery that metal nanoparticles can generate hot carriers upon light excitation is seen as a breakthrough in the fields of plasmonics and photonics. However, the high expectations for a plasmonic revolution in applications have been dampened by the ultrafast energy dissipation of surface plasmon polariton modes. While research aimed at suppressing loss mechanisms is still pursued, an
Probing Electrochemical Potential Differences over the Solid/Liquid Interface in Li-Ion Battery Model Systems
The electrochemical potential difference (Δμ¯) is the driving force for the transfer of a charged species from one phase to another in a redox reaction. In Li-ion batteries (LIBs), Δμ¯ values for both electrons and Li-ions play an important role in the charge-transfer kinetics at the electrode/electrolyte interfaces. Because of the lack of suitable measurement techniques, little is known about how
Nanoscale Growth Initiation as a Pathway to Improve the Earth-Abundant Absorber Zinc Phosphide
Growth approaches that limit the interface area between layers to nanoscale regions are emerging as a promising pathway to limit the interface defect formation due to mismatching lattice parameters or thermal expansion coefficient. Interfacial defect mitigation is of great interest in photovoltaics as it opens up more material combinations for use in devices. Herein, an overview of the vapor-liqui
Free Carriers versus Self-Trapped Excitons at Different Facets of Ruddlesden-Popper Two-Dimensional Lead Halide Perovskite Single Crystals
The physical origin of sub-band gap photoluminescence in Ruddlesden-Poppers two-dimensional (2D) lead halide perovskites (LHPs) is still under debate. In this paper, we studied the photoluminescence features from two different facets of 2D LHP single crystals: the in-plane facet (IF) containing the 2D inorganic layers and the facet perpendicular to the 2D layers (PF). At the IF, the free carriers
Kolinfosfolipider, en nyttig kostkomponent vid alkoholfettler, NAFLD och NASH
Kolinfosfolipider, en nyttig kostkomponent vid alkoholfettlever, NAFLD och NASH?Åke Nilsson, Rui-Dong DuanBakgrundKolin (trimetyletanolamin) ingår i fosfatidylkolin (PC) och sfingomyelin (SM) som finns i alla cellmembraner och i plasmalipoproteiner, och i acetylkolin. Även om levern bildar en del kolin klassas kolin som ett essentiellt näringsämne. Kolinbrist ger bl a fettlever, muskelsymptom och
Growth, stability, and electronic decoupling of Pt clusters on h-BN/Ir(111)
Motivated by the relevance of Pt clusters in heterogeneous catalysis, ordered Pt cluster superlattices are templated by the moiré of monolayer hexagonal boron nitride (h-BN) with Ir(111). Using X-ray photoelectron spectroscopy, scanning tunneling microscopy, and scanning tunneling spectroscopy, we provide a comprehensive picture for the mechanism of cluster binding, the thermal stability of cluste
Targeting Acute Myelogenous Leukemia Using Potent Human Dihydroorotate Dehydrogenase Inhibitors Based on the 2-Hydroxypyrazolo[1,5- a]pyridine Scaffold : SAR of the Biphenyl Moiety
The connection with acute myelogenous leukemia (AML) of dihydroorotate dehydrogenase (hDHODH), a key enzyme in pyrimidine biosynthesis, has attracted significant interest from pharma as a possible AML therapeutic target. We recently discovered compound 1, a potent hDHODH inhibitor (IC50 = 1.2 nM), able to induce myeloid differentiation in AML cell lines (THP1) in the low nM range (EC50 = 32.8 nM)
On the Use of Interaction Entropy and Related Methods to Estimate Binding Entropies
Molecular mechanics combined with Poisson-Boltzmann or generalized Born and solvent-accessible area solvation energies (MM/PBSA and MM/GBSA) are popular methods to estimate the free energy for the binding of small molecules to biomacromolecules. However, the estimation of the entropy has been problematic and time-consuming. Traditionally, normal-mode analysis has been used to estimate the entropy,
Zero-Dimensional Hybrid Organic-Inorganic Indium Bromide with Blue Emission
Low-dimensional hybrid organic-inorganic metal halides have received increased attention because of their outstanding optical and electronic properties. However, the most studied hybrid compounds contain lead and have long-term stability issues, which must be addressed for their use in practical applications. Here, we report a new zero-dimensional hybrid organic-inorganic halide, RInBr4, featuring
Simple plant and microbial exudates destabilize mineral-Associated organic matter via multiple pathways
Most mineral-Associated organic matter (MAOM) is protected against microbial attack, thereby contributing to longterm carbon storage in soils. However, the extent to which reactive compounds released by plants and microbes may destabilize MAOM and so enhance microbial access, as well as the underlying mechanisms, remain unclear. Here, we tested the ability of functionally distinct model exudates-l
Structure and laminar flame speed of an ammonia/methane/air premixed flame under varying pressure and equivalence ratio
This paper presents a joint experimental and numerical study on premixed laminar ammonia/methane/air flames, aiming to characterize the flame structures and NO formation and determine the laminar flame speed under different pressure, equivalence ratio, and ammonia fraction in the fuel. The experiments were carried out in a lab-scale pressurized vessel with a Bunsen burner installed with a concentr