10,695,936 research outputs found
Gene symbol: JAG1. Disease: Alagille syndrome
No full textA novel heterozygous mutation in exon 6 of Jag1 gene is describe
Mechanical characterization of mixed particleboard panels made of recycled wood and Arundo donax
No full textThe giant reed, Arundo donax (A. donax) is a fast and naturally growing species in the Mediterranean Area indicated as one of the 15 invasive species with greatest impact by the European Commission within the Ecosystem Vulnerability Key Actrion. It is a greatly available but non-fully exploited material regarded as a problem both in agriculture and in watercourse management. This study explores the potential use of A. donax as an alternative material in the production of particleboard panels. The research, conducted in collaboration with the industrial sector, evaluates the mechanical and physical properties of sandwich particleboards in which part of the recycled wood chips are replaced with varying percentages of A. donax chips only in the core of the board. The work demonstrates the feasibility of such a board using industrial procedures and the capability of A. donax to improve the physical and mechanical performance of the recycled wood particleboard without altering the production process or adding resin. The particleboards were manufactured in three densities (550, 680 and 750 kg/m3) and tested for thickness swelling, surface soundness, internal bond and bending strength. The results reveal that particleboards containing 20–35 % of A. donax by mass, particularly for high densities, improved mechanical properties and reduced the thickness swelling, meeting the requirements for class P4 particleboards resulting in an upgrade of the wood recycled panel’s classification. This investigation highlights the viability of integrating A. donax into particleboard production, potentially reducing reliance on imported wood, improving the mechanical properties of recycled wood particleboards and promoting sustainable and locally sourced materials
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Enhancing Ethanol Removal from Wine: A Comparative Study of Reverse Osmosis, Nanofiltration and Osmotic Distillation
No full textPossibile attività pronuba svolta dall’ape (Apis mellifera: Hymenoptera, Apoidea) nell’impollinazione dell’olivo (Olea europaea)
No full textVariations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Evaluation of physicochemical characteristics, color and volatile profile of low alcohol beverage based on concentrated white wine produced by NF and RO membranes
No full textMembrane-based technologies have emerged as vital methods for reducing or removing ethanol in winemaking. This study evaluates the efficacy of nanofiltration (NF-DK) and reverse osmosis (RO-SG) membranes in ethanol reduction for white wine, focusing on permeate flux behavior, fouling index, permeability, ethanol rejection rates, and retention of essential wine components. Experiments were conducted at 21 degrees C, achieving a weight reduction factor (WRF) of 4. The RO-SG membrane experienced a significant decline (78.2 %) in flux over 247 min to achieve WRF 4, whereas the NF-DK membrane exhibited a lesser flux decline of 49.2 %, reaching WRF 4 in just 40 min. Despite the higher ethanol rejection achieved by RO-SG (16.3 %) compared to NF-DK (1.8 %), ROSG demonstrated greater retention of critical compounds, including citric acid, tartaric acid, lactic acid, total acidity, glycerol, dry extract, and key volatile compounds. The produced low-alcohol wines, RO(B) (3.07 % v/v) and NF(B) (2.50 % v/v), showed significant physicochemical changes. Colorimetric analysis revealed deeper red hues and greater color intensity in RO(B) (0.28) compared to NF(B) (0.19) and the original wine (0.23), with a Delta E of 3.26 for RO(B), indicating pronounced visual deviations. Moreover, the retention of volatile compounds was substantially higher in RO(B) (55 %) compared to NF(B) (28 %), highlighting substantial differences in aroma and flavor. These findings highlight the potential of membrane-based approaches for ethanol reduction while emphasizing their impact on key quality parameters, providing valuable insights for the scalable production of low-alcohol wines with controlled compositional attributes
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