Search results for "PDA"
showing 10 items of 78 documents
Homo et: Persona. Societas. Natura. Innovationes : rakstu krājums
2020
LU Studentu zinātnisko rakstu krājums “Homo et” ir Latvijas Universitātes Studentu padomes pirmās organizētās LU Studentu zinātniskās konferences “Homo et” jauno pētnieku darbu apkopojums.
Fitting linear models and generalized linear models with large data sets in R
2009
We present an estimating algorithm to fit linear and generalized linear models not involving the QR decomposition. Some new R functions are presented and discussed. For large data sets, comparisons with respect to the well-known lm() and glm(), as well as to biglm() and bigglm() from the package biglm, show that the proposed functions speed up computation while preserving numerical stability and accuracy
Rīka izstrāde automatizētai aizmugursistēmas izpildlaika testēšana
2017
Kvalifikācijas darbā tika izstrādāts testēšanas rīks SAP Screen Personas 3.0 XML apdarinātājam. Tas ir galvenais mezgls, caur kuru notiek informācijas apmaiņa starp priekšgalsistēmu un aizmugursistēmu. Testu mērķis ir pārbaudīt vai klients, pēc komandas nosūtīšanas aizmugursistēmai, saņem pareizu atbildi. Produkta galvenais mērķis ir nodrošināt pareizas SAP Screen Personas 3.0 darbības pārbaudi. Kvalitātes uzturēšana ir svarīga jebkurā produktā gan izstrādes, gan uzturēšanas, gan koda pārstrādes laikā. Programmatūras produkts ir izstrādāts ABAP valodā.
Una nuova popolazione isolata di xenopo liscio in Sicilia sud-occidentale
2017
African clawed frog is a sub-saharan native anuran that has been introduced in various states of the old and the new world. The only Italian population of this species is located in western Sicily, and it is known as the European clawed frog population with wider distribution area. This paper describes a new Sicilian population of this species, and sets out to verify the effective isolation from the currently known distribution. The new site is a disused swimming pool, located near the mouth of the Belice River (province of Trapani), 31 km away from the nearest edge of the African clawed frog distribution area. To test whether this new population is the result of natural expansion of its ra…
Ancora sulle "esplosive palatali" nelle inchieste dell'Atlante Linguistico del Mediterraneo (ALM): i punti albanesi
2021
Tra i «Problemi redazionali» emersi in fase di controllo e organizzazione dei materiali giunti dalla campagna di rilevamenti dell’Atlante Linguistico del Mediterraneo (ALM), Berruto (1971-1973) rileva la proliferazione e l’eterogeneità di alcune scelte grafemiche operate da diversi raccoglitori che, impegnati in una trascrizione più o meno puntuale delle risposte ottenute, avevano interpretato e risolto variamente alcune delle indicazioni previste nel sistema di trascrizione fonetica che accompagnava il Questionario. Particolarmente complesso era emerso il quadro relativo alla trascrizione di alcune consonanti del settore “palatale”, per le quali i grafemi (e i foni a essi corrispondenti) p…
The role of working memory on writing processes.
2021
Literature has extensively demonstrated the coordination role of working memory (WM) in complex tasks such as writing. However, previous studies mostly concentrated on the relation between passive WM (e.g., WM span) components and specific writing tasks (e.g., dictation). Here, we aimed to investigate the relationship between different writing skills and the performance on a WM updating task measuring the more active components of WM. From a pool of 160 Italian pupils (grades 3–5), we selected 46 children divided in two groups based on their WM updating performance. The first group consisted of 21 children with low WM updating performance (≤10th percentile), the second group consisted of 25…
The executive functions of shifting updating and inhibition and their association with arithmetical abilities.
2008
The study aimed to investigate, in 110 children attending the fourth class of an Italian primary school, the relationships between the executive functions of shifting, updating and inhibition and various aspect of arithmetic (written calculation, arithmetical facts and numeral knowledge). Shifting was assessed rating time and errors in color/number and number/letter Making trails task. Updating was assessed using Palladino et al.’s task (2001). Inhibition of endogenous information was assessed rating intrusion errors in Updating task, whereas effortful inhibition of exogenous interference and automatic inhibition of endogenous information were respectively assessed using Stroop and Negative…
Long-distance magnetic coupling in dinuclear copper(II) complexes with oligo-para-phenylenediamine bridging ligands
2010
Abstract Two novel dinuclear copper(II) complexes of formulae [Cu2(tren)2(bpda)](ClO4)4 (2) and [Cu2(tren)2(tpda)](ClO4)4 (3) containing the tripodal tris(2-aminoethyl)amine (tren) terminal ligand and the 4,4′-biphenylenediamine (bpda) and 4,4″-p-terphenylenediamine (tpda) bridging ligands have been synthesized and structurally, spectroscopically, and magnetically characterized. Their experimentally available electronic spectroscopic and magnetic properties have been reasonably reproduced by DFT and TDDFT calculations. Single crystal X-ray diffraction analysis of 2 shows the presence of dicopper(II) cations where the bpda bridging ligand adopts a bismonodentate coordination mode toward two …
Robotic-Assisted Neck Dissection: Our Experience
2021
Abstract Introduction Robotic neck dissection surgery allows less invasiveness to significantly improve the aesthetic impact even though it does not compromise the principles of radical cancer procedure. Objective The aim of our work is to describe our personal experience with robotic neck dissection surgery. Methods A retrospective study was conducted by analyzing 10 patients subjected to a robotic neck dissection surgery. In the period from August 2012 to December 2018, these patients have been treated exclusively with robotic lateral-cervical dissection. Five of them were subjected to robotic-assisted transaxillary neck dissection (RATAND) and the other 5 treated with robotic-assisted re…
Extranodal extension in N1-adenocarcinoma of the pancreas and papilla of Vater: A systematic review and meta-analysis of its prognostic significance
2016
The aim of the study was to investigate the prognostic role of extranodal extension (ENE) of lymph node metastasis in adenocarcinoma of the pancreas (PDAC) and papilla [cancer of the papilla of Vater (CPV)]. A PubMed and SCOPUS search from database inception until 5 January 2015 without language restrictions was conducted. Eligible were prospective studies reporting data on prognostic parameters in individuals with PDAC and/or CPV, comparing participants with the presence of ENE (ENE +) with those with intranodal extension (ENE). Data were summarized using risk ratios for number of deaths/recurrences and hazard ratios for time-dependent risk related to ENE+, adjusted for potential confounde…