Search results for "Lua"
showing 10 items of 3286 documents
A Clinical Comparison between the Gamma® and the Claufitt® Nails in Unstable Proximal Femoral Fractures
2007
Purpose To assess the differences that exist between two intramedullary osteosynthesis systems for the treatment of unstable proximal femoral fractures in an attempt to find out whether the use of an antirotation screw improves the final result. Materials and methods A retrospective study was carried out to analyze the plcement and clinical evolution of both intramedullary nailing systems (Gamma ® y Claufitt ® ). The patients’ medium-term functional status was evaluated and benchmarked against the characteristics of the population served by our University Hospital. A final database was obtained made up of 43 cases of Claufitt ® that met the criteria of our study. A functional assessment sys…
Приморскіе торговые порты Европейской Россіи: Бѣлое, Балтійское, Черное и Азовское моря [Приморские торговые порты Европейской России...]
1908
Содержание: 1) Введение. I. Очеркъ развитія приморскихъ торговыхъ портовъ Европейской Россіи ; II. Строительные и эксплоатаціонные расходы въ портахъ ; III. Мѣстныя Управленія приморскими торговыми портами ; 2) БѢЛОЕ МОРЕ. I. Описаніе моря, побережья и второстепенныхъ портовъ ; II. Архангельский портъ ; 3) БАЛТІЙСКОЕ МОРЕ. I. Описаніе моря, побережья и второстепенныхъ портовъ ; II. С.-Петербургскій портъ ; III. Ревельскій портъ ; IV. Рижскій портъ ; V. Виндавскій портъ ; VI. Либавскій портъ ; 4) ЧЕРНОЕ МОРЕ. I. Описаніе моря, побережья и второстепенныхъ портовъ ; II. Одесскій портъ ; III. Днѣпровско-Бугскій лиманъ, Николаевскій и Херсонскій порты ; IV. Ялтинскій портъ ; V. Ѳеодосійскій порт…
Synthesis and biological evaluation of structural variants of carbazoquinocin C
2003
Some new structural variants of the alkaloid carbazoquinocin C were synthesized in a few steps with good to excellent yields. The key step comprises a cyclisation reaction of appropriate 2-vinylindoles with oxalyl chloride. The carbazole-3,4-quinones are able to trap oxygen-centred radicals. In some biological/biochemical assays some of these compounds exhibit extraordinary results including inhibition of cyclooxygenase-1 and 5-lipoxygenase in the μM-range. Moreover some of the carbazoquinocin C-variants inhibit significant oxidative damage of cellular DNA in nM-range.
Water Extract of Cryphaea heteromalla (Hedw.) D. Mohr Bryophyte as a Natural Powerful Source of Biologically Active Compounds
2019
Bryophytes comprise of the mosses, liverworts, and hornworts. Cryphaea heteromalla, (Hedw.) D. Mohr, is a non-vascular lower plant belonging to mosses group. To the date, the most chemically characterized species belong to the liverworts, while only 3.2% and 8.8% of the species belonging to the mosses and hornworts, respectively, have been investigated. In this work, we present Folin–Ciocalteu and oxygen radical absorbance capacity (ORAC) data related to crude extracts of C. heteromalla obtained by three di erent extraction solvents: pure water (WT), methanol:water (80:20 v/v) (MET), and ethanol:water (80:20 v/v) (ETH). The water extract proved to be the best solvent showing the highest con…
Soil carbon, multiple benefits
2014
Made available in DSpace on 2018-12-11T17:24:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01 In March 2013, 40 leading experts from across the world gathered at a workshop, hosted by the European Commission, Directorate General Joint Research Centre, Italy, to discuss the multiple benefits of soil carbon as part of a Rapid Assessment Process (RAP) project commissioned by Scientific Committee on Problems of the Environment (SCOPE). This collaboration led to the publication of the SCOPE Series Volume 71 Soil Carbon: Science, Management and Policy for Multiple Benefits; which brings together the essential scientific evidence and policy opportunities regarding the global importa…
La distribuzione di Maxwell-Boltzmann: i risultati di una sperimentazione svolta nell'ambito dei corsi di laurea in ingegneria
2011
This paper describes the outcomes of an teaching experiment conducted in the seminar held at the Faculty Engineering of Palermo University. The theme of the seminar focused on undergraduate experiment that yields the velocity distribution of thermionic electrons by analyzing the I-V characteristics of diodes and triodes. By using a simple model, the velocity distribution of thermionic electrons emitted by the vacuum tube cathode can be described by Maxwell's distribution. The experiment allows students to focus on the distribution function more than on difficulties arising from the complexity of thermionic emission. Questo articolo descrive i risultati di una sperimentazione didattica condo…
Study of the Importance of Emotional Factors Connected to the Colors of Fresh-Cut Cactus Pear Fruits in Consumer Purchase Choices for a Marketing Pos…
2015
Cactus pear has always aroused curiosity because of its shape and its particular structural characteristics (plate and spiny clatodes, oval fruits of different colors and flowers of an enchanting beauty). This plant evocates the territory where it grows, characterized by a sub-tropical climate, which in Europe is represented by the region of Sicily (Southern Italy), that is one of the main producers of the Mediterranean area. Sicily has three native cultivars with different colors of the fruit: red, yellow and white. The variety with the yellow fruit is the most widespread, although all of them are commercialized. The chromatic variety of these fruits might be an important element of attrac…
Percepción del alumnado sobre evaluación formativa y compartida: conectando dos universidades a través de la Blogosfera
2017
The aim of this study was to evaluate differences in physical education students’ perception on an educational innovation based on formative and peer assessment through the blogosphere. The sample was made up of 253 students from two Spanish universities. Data was collected using a self-reported questionnaire and t tests were employed in order to find differences among students’ groups. Results show significant differences in almost all of the items on which the students were questioned. Basque students were more satisfied with the assessment tool used than the Valencian students. Students found the blogosphere more active, meaningful, functional and motivating and that it made for collabor…
La prueba internacional PIRLS 2001 y los componentes del proceso de lectura, estudio de factores asociado
2008
08006 - En ligne à l'adresse : http://www.rieoei.org/boletin45_3.htm; International audience; Este escrito trata sobre los elementos que conforman la comprensión de lectura y las características de los lectores en relación con ellos. Se parte de la premisa de la pluridimensionalidad de la competencia lectora, es decir: un texto escrito posee varios niveles y tipos de complejidad, determinados tanto por aspectos cognitivos como por aspectos culturales. Ante esto, no todos los lectores reaccionan de la misma forma, esto se traducirá en mayor o menor dificultad para comprender un tipo de texto dado, o en mayor o menor dificultad para alcanzar los niveles más complejos de la comprensión escrita…
Investigating the impact of virtual tourism on travel intention during the post-COVID-19 era: evidence from China
2022
This study explores the mechanism that contributes to travel intention in the field of virtual tourism. The overall research method is based on the "Stimulus-Organism-Response" theory. In the research model, the effects of content quality, system quality, and interaction quality in virtual tourism on tourism experience and travel intention are explored, as well as the role of virtual attachment and travel intention. A total of 390 respondents were invited to participate in a virtual tourism experience, and provide feedback through a questionnaire. SmartPLS 3.3.2 was used to validate the causal model, and most of the study hypotheses were supported. The findings show that virtual tourism sig…