196,669 research outputs found
Strength adhesion of chorioretinal tissues after the influence of high-frequency microsurgical electric welding with suprachoroid accesses
No full textSaoud O, Sergiienko A, Turchyn M, Umanets M, Petrovski G, Rehak M, Lytvynchuk L. Strength adhesion of chorioretinal tissues after the influence of high-frequency microsurgical electric welding with suprachoroid accesses. Proceedings of the 10th International Congress on OTC and OTC angiography "Floretina_ICOOR Congress 2022" (Italy, Rome, 8-11 Dec 2022). https://doi.org/10.5281/zenodo.833151
High-frequency current using suprachoroidal approach to treat retinal tears: study of safety and efficiency
No full textSerhiienko A, Saoud O, Umanets M, Korol A, Turchyn M, Ardan T, Stieger K, Petrovski G, Rehak M, Lytvynchuk L. Prąd o wysokiej częstotliwości wykorzystujący podejście nadnaczyniówkowe do leczenia łez siatkówki: badanie bezpieczeństwa i skuteczności [High-frequency current using suprachoroidal approach to treat retinal tears: study of safety and efficiency]. 54 Zjazdu Okulistów Polskich (Paryż-Berlin-Barcelona, 15–17.06.2023) [54th Congress of Polish Ophthalmologists (EU, Paris-Berlin-Barcelona, 15–17 Jun 2023)]. https://doi.org/10.5281/zenodo.833206
Including dispersion in density functional theory for adsorption on flat oxide surfaces, in metal-organic frameworks and in acidic zeolites
No full textWe examine the performance of nine commonly used methods for including dispersion interactions in density functional theory (DFT): three different parametrizations of damped 1/Rn terms (n = 6, 8, ...) added to the DFT energy (Grimme's D2 and D3 parameterizations as well as that of Tkatchenko and Scheffler), three different implementations of the many-body dispersion approach (MBD, MBD/HI and MBD/FI), the density-dependent energy correction, called dDsC, and two "first generation" van der Waals density functionals, revPBE-vdW and optB86b-vdW. As test set we use eight molecule-surface systems for which agreement has been reached between experiment and hybrid QM:QM calculations within chemical accuracy limits (±4.2 kJ mol-1). It includes adsorption of carbon monoxide and dioxide in the Mg2(2,5-dioxido-1,4-benzenedicarboxylate) metal-organic framework (Mg-MOF-74, CPO-27-Mg), adsorption of carbon monoxide as well as of monolayers of methane and ethane on the MgO(001) surface, as well as adsorption of methane, ethane and propane in H-chabazite (H-CHA). D2 with Ne parameters for Mg2+, D2(Ne), MBD/HI and MBD/FI perform best. With the PBE functional, the mean unsigned errors are 6.1, 5.6 and 5.4 kJ mol-1, respectively
Are heterogenous results of EGFR immunoreactivity in renal cell carcinoma related to non-standardised criteria for staining evaluation?
No full textAIMS:
To assess whether heterogeneity of epidermal growth factor receptor (EGFR) immunoreactivity in renal cell carcinoma (RCC) is related to non-standardised criteria for staining evaluation.
METHODS:
EGFR expression was investigated in 132 primary and 55 metastatic conventional RCCs using a tissue microarray technique.
RESULTS:
Overall, membranous and/or cytoplasmic EGFR immunostaining was present in 123 of 132 (93%) primary and 49 of 53 (92%) metastatic RCCs, with extensive immunoreactivity (> 50% of tumour cells) in 110 of 132 (83%) primary tumours and 39 of 53 (73%) metastases. Cytoplasmic staining was associated with high tumour stage and high tumour grade. In addition, strong membranous staining (score 3+) prevailed in high grade RCCs. Cytoplasmic immunostaining was associated with an unfavourable prognosis, whereas overall (cytoplasmic and membranous) immunoreactivity and intensity of membranous staining were not.
CONCLUSIONS:
Different methods of immunohistochemical evaluation led to different results, strengthening the need for standardisation, especially against a background of rapidly evolving EGFR targeted cancer treatment strategies
An Ultra Low-Noise Preamplifier For Room Temperature X-Ray Detectors
No full textABSTRACTA new circuital configuration for the charge amplifier is presented. By means of a double feedback loop, the input field-effect transistor can operate with its gate junction sligtly forward biased, collecting the detector current and discharging the feedback capacitor. The feedback resistor is so avoided and no resetting device or circuit is required for the preamplifier operation. The noise is limited by the input transistor, an equivalent noise charge of 19.5 r.m.s. electrons has been measured at room temperature by employing a commercial JFET.</jats:p
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
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