Search results for "EPA"
showing 10 items of 8995 documents
Characterization and evaluation of hepatic differentiation potential of human umbilical cord mesenchymal stem cells
2012
Wewnątrznaczyniowe dwuetapowe leczenie tętniaków aorty brzusznej z użyciem Heli-FX EndoAnchor System
2019
Wstęp: Wyniki leczenia tętniaków aorty brzusznej mimo wprowadzenia nowych technik wewnątrznaczyniowych nadal nie zawsze są zadowalające. Szczególnie trudną grupą pacjentów są osoby z krótką oraz stożkową szyją. W tej grupie chorych często występuje w okresie pooperacyjnym przeciek typu I. Jedną z metod mających temu powikłaniu zapobiec jest zastosowanie wkrętów wewnątrznaczyniowych Heli-FX. Ma to zwiększyć przyleganie systemu stentgraftu do ściany aorty brzusznej oraz zapobiec jego ewentualnej migracji. Materiał i metody: Autorzy niniejszego artykułu proponują zastosowanie leczenia dwuetapowego. Pierwszy etap stanowiła implantacja przedłużki aortalnej tuż poniżej odejścia tętnic nerkowych i…
Inaktywacja enzymatyczna nieracemicznych feromonów owadów
2013
Advances in the endoscopic management of malignant biliary obstruction
2020
Biliary obstruction is common in pancreatobiliary malignancies and has a negative impact on the patient’s quality of life, postoperative complications, and survival rates. Particularly in the last decade, there has been enormous progress regarding the diagnostic and therapeutic options in patients with malignant biliary obstruction. Endoscopy has given a new insight in this direction and novel techniques have been developed for the better characterization and treatment of malignant strictures. We herein summarize the available data on the different endoscopic techniques, and clarify their role in the diagnosis and treatment of malignant biliary obstructive disease. Finally, we propose an al…
On the adsorption and reactivity of element 114, flerovium
2022
Flerovium (Fl, element 114) is the heaviest element chemically studied so far. To date, its interaction with gold was investigated in two gas-solid chromatography experiments, which reported two different types of interaction, however, each based on the level of a few registered atoms only. Whereas noble-gas-like properties were suggested from the first experiment, the second one pointed at a volatile-metal-like character. Here, we present further experimental data on adsorption studies of Fl on silicon oxide and gold surfaces, accounting for the inhomogeneous nature of the surface, as it was used in the experiment and analyzed as part of the reported studies. We confirm that Fl is highly v…
Ca-48+Bk-249 Fusion Reaction Leading to Element Z=117: Long-Lived alpha-Decaying (270)Db and Discovery of Lr-266
2014
The superheavy element with atomic number Z=117 was produced as an evaporation residue in the 48Ca+249Bk fusion reaction at the gas-filled recoil separator TASCA at GSI Darmstadt, Germany. The radioactive decay of evaporation residues and their α-decay products was studied using a detection setup that allowed measuring decays of single atomic nuclei with half-lives between sub-μs and a few days. Two decay chains comprising seven α decays and a spontaneous fission each were identified and are assigned to the isotope 294117 and its decay products. A hitherto unknown α-decay branch in 270Db (Z=105) was observed, which populated the new isotope 266Lr (Z=103). The identification of the long-live…
La quimioembolización transarterial en el tratamiento del carcinoma hepatocelular en estadio intermedio. Estudio de los factores predictivos de super…
2014
La QETA es actualmente el tratamiento de elección del CHC en estadio intermedio de la BCLC. A pesar de ser la terapia más utilizada, existen múltiples aspectos por dilucidar, principalmente la identificación de los mejores candidatos dentro del amplio y heterogéneo grupo de pacientes que componen el estadio intermedio. Los objetivos primarios de este estudio han sido establecer la supervivencia global y actuarial asociada al tratamiento con QETA e identificar los factores predictivos de supervivencia mientras que como objetivos secundarios se han analizado la respuesta tumoral completa y objetiva, la supervivencia libre de enfermedad y la seguridad de la terapia. Entre mayo de 2002 y junio …
Determination of glyphosate and its metabolite aminomethylphosphonic acid in fruit juices using supported-liquid membrane preconcentration method wit…
2005
Abstract The application of supported-liquid membrane (SLM) technique for effective extraction of N -(phosphonomethyl)glycine (glyphosate) and its primary metabolite aminomethylphosphonic acid (AMPA) from juices (orange, grapefruit, apple and blackcurrant) in combination with HPLC-UV detection after derivatization with p -toluenesulphonyl chloride (TsCl) is presented. The influence of various parameters such as the composition of acceptor phase, flow-rate, concentration of analytes, on the performance of extraction procedure, was studied. It was shown that by appropriate manipulation of SLM parameters the level of detection could be significantly improved. The influence of SLM conditions on…
Governing at the frontier of the European Commission : the case of seconded national officials
2005
Studies of executive institutions have largely dealt separately with national and international executive institutions (IEIs). This study unpacks and repacks four conflicting decision-making dynamics that unfolds at the frontier of IEIs – that is, at the institutional rim where national and international executive institutions meet, interact and collide. The empirical laboratory utilised is seconded national experts in the European Commission. The survey and interview data presented demonstrates that the decision-making behaviour of seconded national experts includes a mix of departmental (portfolio), epistemic (expert) and supranational behaviour. The suspicion early voiced by Coombes (197…
Hepatocyte transplantation, a step forward?
2019
Hepatocyte transplantation emerged a few decades ago as a possible strategy to overcome some of the limitations of liver transplantation, among them the availability of organ donors and the functional quality of grafts. Nowadays, allogenic cell transplantation is still to be confirmed as a viable therapeutic option for patients with hereditary metabolic liver diseases. Although we have now overseen 5 decades of basic and animal research in the field, the number of successfully treated patients remains low. Limitations in cell engraftment and selective proliferation of transplanted cells remain a constraint to the generalized use of this therapeutic approach.