Asymptotic expansions for Laguerre-like orthogonal polynomials

AbstractAsymptotic expansion for the Laguerre polynomials and for their associated functions is extended to the case of a weight function which is the product of the Laguerre weight function by a polynomial, nonnegative on the interval [0,∞[

Overexpression of LeNHX4 improved yield, fruit quality and salt tolerance in tomato plants (Solanum lycopersicum L.)

The function of the tomato K, Na/H antiporter LeNHX4 has been analyzed using 35S-driven gene construct for overexpressing a histagged LeNHX4 protein in Solanum lycopersicum L. Compared to wild-type plants, the expression of LeNHX4 was enhanced in most of plants transformed with a gene construct for LeNHX4 overexpression although some plants showed a decreased LeNHX4 expression. Overexpression of LeNHX4 was associated to an increased fruit size while silencing of this gene was related to a decreased fruit size. We have investigated the effect of LeNHX4 overexpression on fruit production and quality and we have also evaluated salt tolerance in two different overexpression lines by measuring proline, protein and glucose concentrations in tomato leaves grown either under control (0 mM NaCl) or saline (125 mM NaCl) conditions. Plants overexpressing LeNHX4 showed a higher amount of fruits than WT plants and accumulated higher contents of sugars and cations (Na and K). The application of 125 mM NaCl, affected negatively fruit production and quality of WT plants. However the transgenic lines overexpressing LeNXH4 increased fruit quality and yield. In relation to salt tolerance, overexpression lines showed higher levels of leaf proline, glucose and proteins under NaCl treatment. The overexpression of LeNHX4 in tomato plants, improved salinity tolerance and increased fruit yield and quality under both normal and salinity stress conditions.This work was supported by Grants from Consejería de Economía, Innovación, Ciencia y Empresa, Junta de Andalucía, Spain (CVI-7558 to MPRR), Spanish Ministry of Economy and Competitiveness and Agencia Estatal de Investigación (BIO2015-65056-P, BIO2016-81957-REDT/AEI and Programa I-COOPB+2013 Ref. COOPB20053 National Centre for Scientific and Technical Research COOPB20053). and Minister for Higher Education, Scientific Research and Executive Training (Morocco)

Clinical practice guidelines with recommendations for peripartum depression: A European systematic review

Objective : This study aims to systematically review all Clinical Practice Guidelines (CPGs) with recommendations for peripartum depression in European countries. Methods : A systematic review according to the PRISMA statement was conducted. CPGs focussing on peripartum depression or with at least one specific recommendation for peripartum depression from European countries were selected. Searching was conducted in electronic databases (MEDLINE and PsycINFO), and by contacting professional societies and international experts until November 24th, 2021. Characteristics of the included CPGs and their recommendations were extracted. A methodological quality assessment was conducted using the AGREE-II tool. Results : A total of 239 records were identified after duplicate removal. Of these, 54 were examined for full-text inspection. The final selection yielded 14 CPGs from 11 European countries in 10 languages. Of them, 11 provided recommendations on pharmacological treatments, 10 on psychological treatment (e.g., cognitive-behavioural therapy), 10 on screening, 8 on diagnosis, 6 on other treatments (e.g., physical exercise), 5 on prevention, and 5 other recommendations (e.g., provide information). Regarding the overall methodological quality, only five (35.7%) guidelines were rated as of adequate quality, reaching a score ≥ 70% in the overall assessment of the AGREE-II instrument. Of the six AGREE-II domains, applicability scored the lowest and clarity of presentation scored the highest. Conclusion : The absence of CPGs in most European countries, the discrepancy in recommendations and the low methodological quality of the guidelines may lead to disparities and inequalities in peripartum depression management in Europe. The COST Action Riseup-PPD highlights key considerations for future guideline developers