Biological membranes are partitioned into functional zones termed membrane microdomains, which contain specific lipids and proteins. The composition and organization of membrane microdomains remain controversial because few techniques are available that allow the visualization of lipids in situ without disrupting their native behaviour. The yeast eisosome, composed of the BAR-domain proteins Pil1 and Lsp1 (hereafter, Pil1/Lsp1), scaffolds a membrane compartment that senses and responds to mechanical stress by flattening and releasing sequestered factors.
View Article and Find Full Text PDFAim: The purpose of the study was to describe the preparation of children for day surgery from the parent's viewpoint.
Design: Empirical Research Mixed Method.
Methods: The research applied a mixed-methods study design.
The capping of barbed filament ends is a fundamental mechanism for actin regulation. Capping protein controls filament growth and actin turnover in cells by binding to the barbed ends of the filaments with high affinity and slow off-rate. The interaction between capping protein and actin is regulated by capping protein interaction (CPI) motif proteins.
View Article and Find Full Text PDFBackground: Day surgery allows families to return home quickly. Only a few approaches to preparing for day surgery have demonstrated how digital solutions can support families and children.
Objective: This study aims to evaluate the effectiveness of a mobile app intervention on preschool children's fear and pain and parents' anxiety and stress in preparing children for day surgery.
Conserved protein complexes called ESCRTs (endosomal sorting complexes in retrograde transport) exert diverse membrane remodeling and repair functions in cells. Hakala and Roux discuss a novel type of ESCRT-III structure found by Stempels et al. (2023.
View Article and Find Full Text PDFPurpose: A prerequisite for successful pain management is identifying the pain and assessing its intensity. The aim of this study was to describe parents' perceptions of their child's pain assessment in hospital care.
Design And Methods: This study was a descriptive cross-sectional study.
Background: The challenge is to identify pain assessment counselling that are effective and reliable to the woman during labour while also supporting appropriate management of labour pain.
Objective: This study aimed to describe women's perceptions of their counselling on pain assessment and pain management during labour.
Design: A descriptive, cross-sectional study.
Introduction: The use of non-pharmacological pain relief methods and pain assessment scales during labor has received limited research attention. This study aimed to describe women's perceptions of the pain assessment and non-pharmacological pain relief methods used during labor.
Methods: A descriptive, cross-sectional survey was conducted.
Introduction: This study aimed to describe exclusive breastfeeding (EBF, Step 6 of the Baby-Friendly Hospital Initiative) in Finnish maternity hospitals and identify factors that promote or limit EBF.
Methods: A cross-sectional study design was used, and data were collected from eight maternity hospitals in Finland during a 10-day period in May 2014. The staff completed questionnaires (n=1554) from separate work shifts.
Coordinated polymerization of actin filaments provides force for cell migration, morphogenesis and endocytosis. Capping protein (CP) is a central regulator of actin dynamics in all eukaryotes. It binds to actin filament (F-actin) barbed ends with high affinity and slow dissociation kinetics to prevent filament polymerization and depolymerization.
View Article and Find Full Text PDFBackground And Objectives: More knowledge is needed of the effectiveness of complex interventions that aim to promote the wellbeing of older people. This study examines the effects of 'participatory group-based care management' conducted among community-dwelling older adults living alone in Central and Eastern Finland. The intervention aimed to promote wellbeing and quality of life (QoL) using a needs-based and participatory approach.
View Article and Find Full Text PDFPurpose: In this study we trained a deep neural network model for female pelvis organ segmentation using data from several sites without any personal data sharing. The goal was to assess its prediction power compared with the model trained in a centralized manner.
Methods: Varian Learning Portal (VLP) is a distributed machine learning (ML) infrastructure enabling privacy-preserving research across hospitals from different regions or countries, within the framework of a trusted consortium.
Phys Chem Chem Phys
December 2018
In this study, we looked at the hydrogen evolution reaction on Mg-, Mo-, Fe-, Co-, V-, and Cu-doped Ni3P2 and Ni3P2 + P terminated Ni2P surfaces. The DFT calculated hydrogen adsorption free energy was employed as a predictor of the materials' catalytic HER activity. Our results indicate that doping can substantially improve the catalytic activity of the Ni3P2 terminated surface.
View Article and Find Full Text PDFIntroduction: Rooming-in is an evidence-based practice during which postpartum mothers and infants stay together. Rooming-in benefits both the mother and infant, and is especially important for breastfeeding. This study aims to describe rooming-in (Step 7 of the BFHI), according to mothers and maternity-ward staff in Finnish maternity hospitals, as well as the factors associated with its implementation.
View Article and Find Full Text PDFPhys Chem Chem Phys
May 2018
Nanoparticles of nickel phosphide are promising materials to replace the currently used rare Pt-group metals at cathode-side electrodes in devices for electrochemical hydrogen production. Chemical modification by doping can be used to fine-tune the electrocatalytic activity, but this path requires theoretical, atomic-level support which has not been widely available for Ni-P. We present a density functional theory analysis of Al-doped Ni2P surfaces to identify structural motifs that could contribute to the improved behavior of the catalyst.
View Article and Find Full Text PDFMembrane phosphoinositides control organization and dynamics of the actin cytoskeleton by regulating the activities of several key actin-binding proteins. Twinfilin is an evolutionarily conserved protein that contributes to cytoskeletal dynamics by interacting with actin monomers, filaments, and the heterodimeric capping protein. Twinfilin also binds phosphoinositides, which inhibit its interactions with actin, but the underlying mechanism has remained unknown.
View Article and Find Full Text PDFBackground: Brexpiprazole is a serotonin-dopamine activity modulator with efficacy in acute schizophrenia and relapse prevention. The aim of this Phase 3, multicenter study was to assess the long-term safety, tolerability, and efficacy of treatment with brexpiprazole flexible-dose 1-4 mg/d.
Methods: Patients rolled over into this 52-week open-label study (amended to 26 weeks towards the end) from 3 randomized, double-blind, placebo-controlled Phase 3 studies.
Electrochemical devices for efficient production of hydrogen as energy carrier rely still largely on rare platinum group metal catalysts. Chemically and structurally modified metal dichalcogenide MoS is a promising substitute for these critical raw materials at the cathode side where the hydrogen evolution reaction takes place. For precise understanding of structure and hydrogen adsorption characteristics in chemically modified MoS nanostructures, we perform comprehensive density functional theory calculations on transition metal (Fe, Co, Ni, Cu) doping at the experimentally relevant MoS surfaces at substitutional Mo-sites.
View Article and Find Full Text PDFRegulated reorganization of the actin cytoskeleton is a prerequisite for proper platelet production and function. Consequently, defects in proteins controlling actin dynamics have been associated with platelet disorders in humans and mice. Twinfilin 2a (Twf2a) is a small actin-binding protein that inhibits actin filament assembly by sequestering actin monomers and capping filament barbed ends.
View Article and Find Full Text PDFWe report a comprehensive computational study of the intricate structure-property relationships governing the hydrogen adsorption trends on MoS edges with varying S- and H-coverages, as well as provide insights into the role of individual adsorption sites. Additionally, the effect of single- and dual S-vacancies in the basal plane on the adsorption energetics is assessed, likewise with an emphasis on the H-coverage dependency. The employed edge/site-selective approach reveals significant variations in the adsorption free energies, ranging between ∼±1.
View Article and Find Full Text PDFBackground: Breastfeeding and skin-to-skin contact are the best start for infant life. Breastfeeding ensures the best trajectory for development and growth while preventing many diseases later in life. It is recommended that initial breastfeeding occur during the first hour and that generally exclusive breastfeeding is adopted during the first six months.
View Article and Find Full Text PDFObjective: Review efficacy, safety, and tolerability of brexpiprazole in patients with schizophrenia in short- and long-term phase 3 studies.
Methods: Patients experiencing a current exacerbation of schizophrenia received brexpiprazole in two fixed-dose (2 and 4 mg), 6-week, placebo-controlled studies, one flexible-dose (2-4 mg), 6-week, placebo-control and active reference study, and one fixed-dose (1-4 mg), 52-week, placebo-controlled maintenance study.
Results: The efficacy of brexpiprazole was demonstrated in the two short-term fixed-dose studies with statistically significant improvements from baseline in Positive and Negative Syndrome Scale (PANSS) total score compared with placebo.
In this paper we report an experimental and computational study of liquid acetonitrile (HC-C[triple bond, length as m-dash]N) by resonant inelastic X-ray scattering (RIXS) at the N K-edge. The experimental spectra exhibit clear signatures of the electronic structure of the valence states at the N site and incident-beam-polarization dependence is observed as well. Moreover, we find fine structure in the quasielastic line that is assigned to finite scattering duration and nuclear relaxation.
View Article and Find Full Text PDFCell migration is necessary for several developmental processes in multicellular organisms. Furthermore, many physiological processes such as wound healing and immunological events in adult animals are dependent on cell migration. Consequently, defects in cell migration are linked to various diseases including immunological disorders as well as cancer progression and metastasis formation.
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