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Exploiting sensor geometry for enhanced gas sensing properties of fluorinated carbon nanotubes under humid environment

Modification of the surface electronic properties of vertically aligned and randomly distributed carbon nanotubes and the hydrophobic character after exposure to Ar:F2 and CF4 plasma are exploited to optimize the sensing characteristics of these materials. The sensing properties of fluorinated carbon nanotubes are disclosed by probing their stability and responsiveness towards the detection of two

Conceptualizing multiple drug use in patients with comorbidity and multimorbidity : proposal for standard definitions beyond the term polypharmacy

With older and aging populations, patients experience multiple chronic diseases at the same time. Individual chronic disease guidelines often recommend pharmacological therapies as a key intervention, resulting in patients being prescribed multiple regular medications for their different diseases. Although the term “polypharmacy” has been applied to the use of multiple medications, there is no con

Investigation of mixed convection in an enclosure filled with nanofluids of Al2O3 –water and graphene-ethylene glycol

In this research work, heat transfer enhancement of mixed convection in an enclosure is investigated with a moving top wall. Numerical simulations based on an Al2 O3 –water nanofluid are conducted by using variable thermophysical properties. Flow fields and temperature distributions are analyzed by considering effects of two partially heated walls. Moreover, water–ethylene glycol mixed with graphe

Computer-assisted reading intervention for children with sensorineural hearing loss using hearing aids : Effects on auditory event-related potentials and mismatch negativity

Objectives: The primary aim was to investigate whether computer-assisted reading intervention somehow can affect event-related potentials (ERP) and mismatch negativity (MMN) in hearing impaired (HI) children with hearing aids (HAs) and normal hearing (NH) children. Methods: The study included 15 HI children with sensorineural hearing loss (SNHL) using bilateral HAs and 14 NH children as a referenc

Chalcogenide-capped triiron clusters [Fe3(CO)93-E)2], [Fe3(CO)73-CO)(μ3-E)(μ-dppm)] and [Fe3(CO)73-E)2(μ-dppm)] (E = S, Se) as proton-reduction catalysts

Chalcogenide-capped triiron clusters [Fe3(CO)7(μ3-CO)(μ3-E)(μ-dppm)] and [Fe3(CO)7(μ3-E)2(μ-dppm)] (E = S, Se) have been examined as proton-reduction catalysts. Protonation studies show that [Fe3(CO)9(μ3-E)2] are unaffected by strong acids. Mono-capped [Fe3(CO)7(μ3-CO)(μ3-E)(μ-dppm)] react with HBF4.Et2O but changes in IR spectra are attributed to BF3 binding to the face-capping carbonyl, while bi

Unravelling uniaxial strain effects on electronic correlations, hybridization and bonding in transition metal oxides

The interplay among spin, lattice, charge and orbit is of central importance for several rich and fascinating properties of oxides, and is the subject of intense research at present. Here, we present an approach to manipulate this interplay by Sn doping to effectively apply uniaxial strain on the TiO2 lattice. The evolution of this interplay in pseudo-homoepitaxial Ti1-xSnxO2 films is measured usi

Impact of protein surface coverage and layer thickness on rehydration characteristics of milk serum protein/lactose powder particles

Spray-dried powders were produced from milk serum protein concentrate and lactose in varying ratios, and the rehydration characteristics of the powders were evaluated. The dissolution rate was estimated with a flow-cell based technique, and the external and internal distribution of the powder components were evaluated with X-ray photoelectron spectroscopy and confocal Raman microscopy, respectivel

Self-healing dyes for super-resolution fluorescence microscopy

In recent years, optical microscopy techniques have emerged that allow optical imaging at unprecedented resolution beyond the diffraction limit. These techniques exploit photostabilizing buffers to enable photoswitching and/or the enhancement of fluorophore brightness and stability. A major drawback with the use of photostabilizing buffers, however, is that they cannot be used in live cell imaging

Combining multiple proxies to investigate water table fluctuations in wetlands : A case study from the Rėkyva wetland complex, Lithuania

The impact climate and land-use changes have on the hydrological conditions in peat bogs and lakes is often complex, but of great importance for the carbon budget and biodiversity in these ecosystems. Links and feedbacks between raised bog water table depth, lake level, net precipitation, hydrometeorological indices, and radial tree growth have been studied and identified in the Rėkyva wetland com

Arterial stiffness in normal pregnancy as assessed by digital pulse wave analysis by photoplethysmography – A longitudinal study

Introduction: It might in the future be valuable to screen for increased maternal arterial stiffness, i.e. low compliance, since it is associated with development of hypertensive complications in pregnancy. Digital pulse wave analysis (DPA) is an easy and manageable method for arterial stiffness assessment. We aimed to investigate gestational influence on DPA variables longitudinally, and establis

Separation of Nucleic Acids Using Single- and Multimodal Chromatography

The needs for purified nucleic acids for preparative and analytical applications have increased constantly, demanding for the development of new and more efficient methods for their recovery and isolation. DNA molecules harbour some intrinsic chemical properties that render them suitable for chromatographic separations. These include a negatively charged phosphate backbone as well as a hydrophobic

Health-related quality of life, treatment adherence and psychosocial support in patients with pulmonary arterial hypertension or chronic thromboembolic pulmonary hypertension

Pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) share similar quality of life impairment. The aim of the present study was to investigate health-related quality of life (HRQoL) and its relation to the perception of treatment and psychosocial support among PAH and CTEPH patients. All adult PAH or CTEPH patients in the Swedish Pulmonary Arterial Hypert

Modulation of Calcium Overload and Calpain Activity

Fluxes of calcium ions (Ca2+) in rod photoreceptors are major regulators of steady-state and light-evoked intracellular reactions to stimuli. The homeostasis of Ca2+ is regulated by channels and pumps localized at the plasma membrane and in intracellular organelles. Photoreceptor degeneration is frequently associated with Ca2+ homeostasis disruption and stimulation of Ca2+ activated proteases, suc

Modulation of cGMP-signalling to Prevent Retinal Degeneration

In the photoreceptors of the retina, the second-messenger molecule cyclic guanosine monophosphate (cGMP) occupies centre stage in the phototransduction cascade. Remarkably, cGMP is also involved in hereditary photoreceptor degeneration caused by a variety of different genetic insults. This provides an entry point for the development of inhibitory cGMP analogues for a mutation-independent treatment

Haematopoietic stem cells : Entropic landscapes of differentiation

The metaphor of a potential epigenetic differentiation landscape broadly suggests that during differentiation a stem cell approaches a stable equilibrium state from a higher free energy towards a stable equilibrium state which represents the final cell type. It has been conjectured that there is an analogy to the concept of entropy in statistical mechanics. In this context, in the undifferentiated

Are Institutions Rules in Equilibrium? Comments on Guala’s Understanding Institutions

In this comment on Francesco Guala’s Understanding Institutions, I express my admiration for the book but I also raise some critical criticisms: His general account of institutions as rules-in-equilibrium seems to get their ontology wrong by disregarding their material side - their concrete realizations. It also diregards social institutions whose rules are not (and are not meant to be) in equilib

Serum chemerin levels are negatively associated with male fertility and reproductive hormones

STUDY QUESTION: Are chemerin levels different in subfertile men compared to men from the general population, and how does chemerin relate to reproductive hormonal status? SUMMARY ANSWER: Chemerin is negatively associated to LH, SHBG and estradiol and lower levels of chemerin are detected among subfertile men compared to controls. WHAT IS KNOWN ALREADY: Adipokines have pleiotropic effects on tissue

High-efficient bacterial production of human ApoA-I amyloidogenic variants

Apolipoprotein A-I (ApoA-I)-related amyloidosis is a rare disease caused by missense mutations in the APOA1 gene. These mutations lead to protein aggregation and abnormal accumulation of ApoA-I amyloid fibrils in heart, liver, kidneys, skin, nerves, ovaries, or testes. Consequently, the carriers are at risk of single- or multi-organ failure and of need of organ transplantation. Understanding the b