Search results for "quest"

Sorption of Pd(II) ion by calcium alginate gel beads at different chloride concentrations and pH. A kinetic and equilibrium study

2016

Abstract A kinetic and thermodynamic study on the sorption ability of calcium alginate gel beads towards Pd(II) ion was made in aqueous solution at different pH and chloride concentrations. The experimental conditions adopted in the sorption experiments were established on the basis of a speciation study on the Pd 2+ -AA system in which all the side reactions, such as the hydrolysis of Pd(II), the protonation of alginate and the interactions of the ligand and the metal ion with ions of ionic medium were taken into account. In the pH range 2–5 and at chloride concentration in the range 0 ⩽ C Cl - /mmol L −1  ⩽ 10 the gel beads showed good sorption ability towards Pd(II) ion as confirmed by k…

Effect of EDTA on divalent metal adsorption onto grape stalk and exhausted coffee wastes

2007

In the present work, two industrial vegetable wastes, grape stalk, coming from a wine producer, and exhausted coffee, coming from a soluble coffee manufacturer, have been investigated for the removal of Cu(II) and Ni(II) from aqueous solutions in presence and in absence of the strongly complexing agent EDTA. Effects of pH and metal-EDTA molar ratio, kinetics as a function of sorbent concentration, and sorption equilibrium for both metals onto both sorbents were evaluated in batch experiments. Metal uptake was dependent of pH, reaching a maximum from pH around 5.5. EDTA was found to dramatically reduce metal adsorption, reaching total uptake inhibition for both metals onto both sorbents at e…

Method Engineering: Current research directions and implications for future research

1996

In this study we investigate method engineering research by classifying studies into three contexts: technology, language and organization. Within each context we examine research bias, research outcomes and use of alternative research methods. This survey reveals the inherent bias of ME research towards tool and language development at the cost of empirical studies. We lack investigations of why organizations develop their own “variants” of system development methods, and how they manage their method engineering efforts. These observations lead us to suggest some directions for future research, which relate both to actual research questions and to the use of complementary research methods.

Embedded controlled language to facilitate information extraction from eGov policies

2015

The goal of this paper is to propose a system that can extract formal semantic knowledge representation from natural language eGov policies. We present an architecture that allows for extracting Controlled Natural Language (CNL) statements from heterogeneous natural language texts with the ability to support multilinguality. The approach is based on the concept of embedded CNLs.

Changes in surgicaL behaviOrs dUring the CoviD-19 pandemic. The SICE CLOUD19 Study

2021

Abstract Background The spread of the SARS-CoV2 virus, which causes COVID-19 disease, profoundly impacted the surgical community. Recommendations have been published to manage patients needing surgery during the COVID-19 pandemic. This survey, under the aegis of the Italian Society of Endoscopic Surgery, aims to analyze how Italian surgeons have changed their practice during the pandemic. Methods The authors designed an online survey that was circulated for completion to the Italian departments of general surgery registered in the Italian Ministry of Health database in December 2020. Questions were divided into three sections: hospital organization, screening policies, and safety profile of…

Work-related upper limb musculoskeletal disorders in paediatric laparoscopic surgery. A multicenter survey.

2013

Abstract Background Surgeons are at risk for developing work-related musculoskeletal symptoms (WMS). The present study aims to examine the physical factors and their association with WMS among pediatric laparoscopic surgeons. Methods A questionnaire consisting of 21 questions was created and mailed to 25 pediatric laparoscopic surgeons (LG). 23/25 surgeons (92%) completed the survey. The questionnaire was analyzed and then split into 2 groups. Group 1 (LG1) included surgeons with greater laparoscopic experience, and group 2 (LG2) included surgeons with less important laparoscopic experience. In addition, we constructed and sent to the same surgeons a similar questionnaire focused on WMS aft…

Laparoscopic assistance by operating room nurses: Results of a virtual-reality study

2016

Abstract Background Laparoscopic assistance is often entrusted to a less experienced resident, medical student, or operating room nurse. Data regarding laparoscopic training for operating room nurses are not available. Objectives The aim of the study was to analyse the initial performance level and learning curves of operating room nurses in basic laparoscopic surgery compared with medical students and surgical residents to determine their ability to assist with this type of procedure. Design The study was designed to compare the initial virtual reality performance level and learning curves of user groups to analyse competence in laparoscopic assistance. Participants The study subjects were…

Gonadotrophin-releasing hormone analogue or dienogest plus estradiol valerate to prevent pain recurrence after laparoscopic surgery for endometriosis…

2015

Objectives To evaluate the efficacy of dienogest + estradiol valerate (E2V) and gonadotrophin-releasing hormone analogue (GnRH-a) in reducing recurrence of pain in patients with chronic pelvic pain due to laparoscopically diagnosed and treated endometriosis. Design Multi-center, prospective, randomized study. Setting Three university departments of obstetrics and gynecology in Italy. Population Seventy-eight women who underwent laparoscopic surgery for endometriosis combined with chronic pelvic pain. Methods Post-operative administration of dienogest + E2V for 9 months (group 1) or GnRH-a monthly for 6 months (group 2). Main outcome measures A visual analogue scale was used to test intensit…

La participación de las mujeres intérpretes en las orquestas sinfónicas de la Comunidad Valenciana: una realidad hermética

2018

Latin Epic Poetry for James I of Aragon: the Poem Triumphus Valentinus by the Valencian Novator Josep Ignasi Barberà

2013

El poema Triumphus Valentinus del valencià Josep Ignasi Barberà, obra encara inèdita i poc coneguda, està format per més de cinc mil hexàmetres llatins que narren la presa de Valencia per part del rei Jaume I. Es tracta d’un poema de principi del segle xviii, amb característiques pròpies del gust neoclàssic i preil·lustrat, on coincideixen l’interès per la història valenciana, la tradició clàssica grecoromana i el reflex del canvi dinàstic a la corona hispànica. El model estètic seguit per l’autor és clarament l’Eneida de Virgili, tant per forma com per contingut. Malgrat l’interès mostrat per autors coetanis com Gregori Maians, l’obra ha passat pràcticament desapercebuda. The poem Triumphu…