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Castro-Kemp Susana Palikara Olympia Gaona Carolina Eirinaki Vasiliki Furlong Michael J. 《School mental health》2020,12(2):284-295
School Mental Health - A dual approach to mental health in schools has been widely defended, where the assessment of psychological distress and the examination of strengths/well-being are two... 相似文献
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Prevalence of dementia in Latin America, India, and China: a population-based cross-sectional survey
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Martina Nevárez-Rascón Nelly Molina-Frechero Edith Adame Ethel Almeida Uriel Soto-Barreras Enrique Gaona Alfredo Nevárez-Rascón 《World Journal of Clinical Cases》2020,8(4):743-756
BACKGROUND Dental fluorosis is caused by excessive fluoride ingestion during tooth formation.As a consequence,there is a higher porosity on the enamel surface,which causes an opaque look.AIM The aim of this study was to identify a dental intervention to improve the smile in patients with tooth fluorosis.Additional aims were to relate the stain size on fluorotic teeth with the effectiveness of stain removal,enamel loss and procedure time using a manual microabrasion technique with 16%hydrochloric acid(HCL).METHODS An experimental study was carried out on 84 fluorotic teeth in 57 adolescent patients,33 females and 24 males,with moderate to severe fluorosis.The means,standard deviations and percentages were analyzed using nonparametric statistics and ArchiCAD 15 software was used for the variables including stain size and effectiveness of stain removal.RESULTS The average enamel loss was 234μm and was significantly related to the procedure time categorized as 1-4 min and 4.01-6 min,resulting in a P>0.000.The microabrasion technique using 16%HCL was effective in 90.6%of patients and was applied manually on superficial stains in moderate and severe fluorosis.Procedure time was less than 6 min and enamel loss was within the acceptable range.CONCLUSION Microabrasion is a first-line treatment;however,the clinician should measure the average enamel loss to ensure that it is within the approximate range of 250μm in order to avoid restorative treatment. 相似文献
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Antonio Morandeira Rivas Jerónimo Riquelme Gaona Mario Álvarez Gallego Eduard María Targarona Soler Carlos Moreno Sanz 《Cirugía espa?ola》2019,97(1):11-19
Introduction
The use and utility of social media (SM) among Spanish general surgeons is unknown.Methods
Between October and December 2017 an online survey was carried out to the members of the Spanish Association of Surgeons, in which data on the profile of use and opinion on the usefulness of SM were collected.Results
360 valid responses were obtained, 310 from surgeons who had an active SM profile. The most popular networks were: Facebook (86%), LinkedIn (61,6%), YouTube (60,6%) and Twitter (54,2%). LinkedIn and Twitter stood out as the most used SM for professional purposes. Surgeons with a SM profile were younger (42.4 ± 11 years versus 51.6 ± 8 years; P < .001). Gender did not show influence on presence in SM. The majority of respondents have profiles in more than one network (3.6 ± 1 accounts) and 73.5% reported daily access to them; 19.7% of the surgery departments to which the respondents belong have a SM account. Among SM utilities in the professional field, training activities (87%) and connectivity among professionals (84%) were the most outstanding; 14.1% of respondents use SM to interact with patients.Conclusions
SM is useful as a tool for the acquisition, updating and dissemination of scientific knowledge, also proving valuable as a new form of interaction among surgeons. Other issues such as privacy or surgeon-patient relationship represent a barrier to its use. 相似文献10.
Nicole A. DiBlasi Agost G. Tasi Michael Trumm Andreas Schnurr Xavier Gaona David Fellhauer Kathy Dardenne Jrg Rothe Donald T. Reed Amy E. Hixon Marcus Altmaier 《RSC advances》2022,12(15):9478
The impact of calcium on the solubility, redox behavior, and speciation of the An(iii)–EDTA (An = Pu or Cm) system under reducing, anoxic conditions was investigated through batch solubility experiments, X-ray absorption spectroscopy (XAS), density functional theory (DFT), and time-resolved laser fluorescence spectroscopy (TRLFS). Batch solubility experiments were conducted from undersaturation using Pu(OH)3(am) as the solid phase in contact with 0.1 M NaCl–NaOH–HCl–EDTA–CaCl2 solutions at [EDTA] = 1 mM, pHm = 7.5–9.5, and [CaCl2] ≤20 mM. Additional samples targeted brine systems represented by 3.5 M CaCl2 and WIPP simulated brine. Solubility data in the absence of calcium were well-described by Pu(iii)–EDTA thermodynamic models, thus supporting the stabilization of Pu(iii)–EDTA complexes in solution. Cm(iii)–EDTA TRLFS data suggested the stepwise hydrolysis of An(iii)-EDTA complexes with increasing pH, and current Pu(iii)-EDTA solubility models were reassessed to evaluate the possibility of including Pu(iii)–OH–EDTA complexes and to calculate preliminary formation constants. Solubility data in the presence of calcium exhibited nearly constant log m(Pu)tot, as limited by total ligand concentration, with increasing [CaCl2]tot, which supports the formation of calcium-stabilized Pu(iii)–EDTA complexes in solution. XAS spectra without calcium showed partial oxidation of Pu(iii) to Pu(iv) in the aqueous phase, while calcium-containing experiments exhibited only Pu(iii), suggesting that Ca–Pu(iii)–EDTA complexes may stabilize Pu(iii) over short timeframes (t ≤45 days). DFT calculations on the Ca–Pu(iii)–EDTA system and TRLFS studies on the analogous Ca–Cm(iii)–EDTA system show that calcium likely stabilizes An(iii)–EDTA complexes but can also potentially stabilize An(iii)–OH–EDTA species in solution. This hints towards the possible existence of four major complex types within Ca–An(iii)–EDTA systems: An(iii)–EDTA, An(iii)–OH–EDTA, Ca–An(iii)–EDTA, and Ca–An(iii)–OH–EDTA. While the exact stoichiometry and degree of ligand protonation within these complexes remain undefined, their formation must be accounted for to properly assess the fate and transport of plutonium under conditions relevant to nuclear waste disposal.Combined advanced spectroscopy and solubility studies provide evidence for the formation of novel calcium-containing and hydrolyzed (Cm,Pu)(iii)–EDTA complex(es). 相似文献