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Characterization of probe contact effects on diffuse reflectance spectroscopy measurements

Diffuse reflectance spectroscopy (DRS) is a rapid, non-invasive optical method widely adopted to gain diagnostic information of tissue. The most flexible approach to this method is a fiber-optic contact-probe used with a spectroscopy system. A challenge of this method is that the external pressure brought by the probe can significantly affect the tissue optical properties as well as the light coup

Vowel spaces in Swedish adolescents with cochlear implants

Abstract in UndeterminedThis paper examines vowel production in Swedish adolescents with cochlear implants. Twelve adolescents with cochlear implants and 11 adolescents with normal hearing participated. Measurements were made of the first and second formants in all the nine long Swedish vowels. The values in hertz were bark-transformed, and two measures of the size of the vowel space were obtained

Label-free protein quantification in freshly ejaculated versus post-mating spermatophores of the noble crayfish Astacus astacus.

Crayfish spermatophores are deposited on the body surface of the female during mating and remain there for a period of time before fertilization ensues. Post-mating changes in protein expression level in the noble crayfish Astacus astacus spermatophore were quantified. In-gel digestion and high resolution mass spectrometry were used for label-free protein quantification. One hundred twelve protein

Actual and non-actual motion: why experientialist semantics needs phenomenology (and vice versa)

Experientialist semantics has contributed to a broader notion of linguistic meaning by emphasizing notions such as construal, perspective, metaphor and embodiment, but has suffered from an individualist concept of meaning and has conflated experiential motivations with conventional semantics. We argue that these problems can be redressed by methods and concepts from phenomenology, through a case s

Slow Aromatic Ring Flips Detected Despite Near-Degenerate NMR Frequencies of the Exchanging Nuclei.

Aromatic ring flips of Phe and Tyr residues are a hallmark of protein dynamics with a long history in molecular biophysics. Ring flips lead to symmetric exchange of nuclei between sites with distinct magnetic environments, which can be probed by NMR spectroscopy. Current knowledge of ring-flip rates originates from rare cases in which the chemical shift difference between the two sites is sufficie

Treatment patterns with topicals, traditional systemics and biologics in psoriasis - a Swedish database analysis

BackgroundLittle data exist on real-world treatment patterns in psoriasis, especially from European settings. ObjectiveTo estimate, for topicals, systemics and biologics, the time to non-persistency, switching, augmentation and insufficient treatment result (only for biologics), as well as to estimate the time to restart, in patients treated with each treatment class in Sweden based on registry da

A Novel Bacterial Resistance Mechanism against Human Group IIA-Secreted Phospholipase A2: Role of Streptococcus pyogenes Sortase A.

Human group IIA-secreted phospholipase A(2) (sPLA(2)-IIA) is a bactericidal molecule important for the innate immune defense against Gram-positive bacteria. In this study, we analyzed its role in the host defense against Streptococcus pyogenes, a major human pathogen, and demonstrated that this bacterium has evolved a previously unidentified mechanism to resist killing by sPLA(2)-IIA. Analysis of

High-Quality Metal-Organic Framework Ultrathin Films for Electronically Active Interfaces.

Currently available methodologies arguably lack the exquisite control required for producing metal-organic framework (MOF) thin films of sufficient quality for electronic applications. By directing MOF transfer with self-assembled monolayers (SAMs), we achieve very smooth, homogeneous, highly oriented, ultrathin films across millimeter-scale areas that display moderate conductivity likely due to e

Unified Study of Recombination in Polymer:Fullerene Solar Cells Using Transient Absorption and Charge-Extraction Measurements

Recombination in the well-performing bulk heterojunction solar cell blend between the conjugated polymer TQ-1 and the substituted fullerene PCBM has been investigated with pump-probe transient absorption and charge extraction of photo-generated carriers (photo-CELIV). Both methods are shown to generate identical and overlapping data under appropriate experimental conditions. The dominant type of r

Structural and thermal characterization of galactomannans from genus Gleditsia seeds as potential food gum substitutes

BACKGROUND: Seed galactomannans are preferred hydrocolloids since they are comparatively cheap, non-toxic, eco-friendly and non-polluting during production and application. Galactomannans from seeds of three species of Gleditsia, namely G. sinensis, G. microphylla and G. melanacantha, were characterized in terms of structural and thermal properties. RESULTS: Gleditsia polysaccharides were characte

Moraxella catarrhalis outer membrane vesicles carry beta-lactamase and promote survival of Streptococcus pneumoniae and Haemophilus influenzae by inactivating amoxicillin.

Moraxella catarrhalis is a common pathogen found in children with upper respiratory tract infections, and in patients with chronic obstructive pulmonary disease during exacerbations. The bacterial species is often isolated together with Streptococcus pneumoniae and Haemophilus influenzae. Outer membrane vesicles (OMV) are released by M. catarrhalis and contain phospholipids, adhesins, and immunomo

Transfusion of sex-mismatched and non-leukocyte-depleted red blood cells in cardiac surgery increases mortality.

OBJECTIVE: To examine the mortality risk of blood transfusions when donor information, postdonation treatment, and a wide selection of risk factors are taken into account. METHODS: A retrospective study was performed on 9907 patients who underwent coronary artery bypass grafting and/or aortic valve replacement. Several transfusion-related risk factors, including age of blood products, sex of don