75 research outputs found
Progression of a C. diff infection
No full textClostridioides difficile (formerly known as Clostridium difficile) is a bacterium that causes diarrhea and colitis (an inflammation of the colon). C. diff infections can be deadly.Publication date from document properties.cdc.gov/cdiffCS 293637-ACdiff-progression-H.pdf2018684
Microinjected ionomycin does not induce Ca<sup>2+</sup> increase inside the starfish eggs.
No full text<p><i>P. miniata</i> oocytes were microinjected with Calcium Green and induced to mature in 10 µM 1-MA for 1 h. Under the CCD camera, the mature eggs were microinjected with InsP<sub>3</sub> (without caging, 5 µM in pipette tip), ionomycin (50 µM), or the injection buffer only. Results of one of the three independent experiments are shown. (<b>A</b>) Transmission views of the eggs 10 min after microinjection. (<b>B</b>) Quantified Ca<sup>2+</sup> signals for InsP<sub>3</sub> (blue curve), injection buffer (green), and ionomycin (brown).</p
Evaluar para un mundo en transformación: metodología e instrumentos de actitudes aplicados en el proyecto PIEARCTS
No full textLa evaluación de las creencias y actitudes de estudiantes y profesorado hacia los temas CTS, como indicadores de alfabetización científica y tecnológica, constituye un problema relevante de la investigación actual. Sin embargo, este diagnóstico no es sencillo por la naturaleza compleja del objeto evaluado y las propias dificultades de validez y fiabilidad de los procedimientos e instrumentos de evaluación. Los instrumentos empíricamente desarrollados como el Cuestionario de Opiniones sobre Ciencia, Tecnología y Sociedad (COCTS) han supuesto un avance para resolver estos problemas. Esta comunicación presenta la metodología de evaluación innovadora, propia, común y contrastada del proyecto de investigación cooperativo internacional (PIEARCTS), objeto del simposio, donde se describen las dos formas de los instrumentos aplicados, los procedimientos, resultados sobre la validez y la fiabilidad
Two new coordination polymers containing 1,4-bis(2-ethylbenzimidazole) as luminescent chemosensors for Fe<sup>3+</sup> ions and tetracycline
No full textTwo new ternary Cd(II) coordination polymers, [Cd2(L)(tbip)2]n (1) and {[Cd(L)0.5(1,4-NDC)]·0.4H2O}n (2) (H2tbip = 5-tert-butylisophthalic acid, 1,4-H2NDC = 1,4-naphthalenedicarboxylic acid and L = 1,4-bis(2-ethylbenzimidazol-1-ylmethyl)benzene), were hydrothermally synthesized and characterized via single-crystal X-ray diffraction, IR spectroscopy, powder X-ray diffraction (PXRD) and thermogravimetric analysis. 1 is a 1-D linear chain, while 2 exhibits a 3-D framework, which can be defined as a 3-D xah (sqc320) topology with the Schläfli symbol of {42.62.82}{46.64}. 1 and 2 remained stable in a pH range of 4.0–13.0 and 3.0–13.0, respectively. 1 and 2 displayed excellent luminescent sensing abilities for Fe3+ ions and tetracycline with high sensitivity and selectivity.</p
The relationships between PACIC and the most often utilized medical institutions for monitoring and treating diabetes among the patients with type 2 diabetes (N = 960).
No full text<p>The relationships between PACIC and the most often utilized medical institutions for monitoring and treating diabetes among the patients with type 2 diabetes (N = 960).</p
The characteristics of the patients with type 2 diabetes (N = 960).
No full text<p>The characteristics of the patients with type 2 diabetes (N = 960).</p
Gold Nanoparticle-Catalyzed Luminol Chemiluminescence and Its Analytical Applications
No full textGold colloids with nanoparticles of different sizes were
found to enhance the chemiluminescence (CL) of the
luminol−H2O2 system, and the most intensive CL signals
were obtained with 38-nm-diameter gold nanoparticles.
UV−visible spectra, X-ray photoelectron spectra, and
transmission electron microscopy studies were carried
out before and after the CL reaction to investigate the CL
enhancement mechanism. The CL enhancement by gold
nanoparticles of the luminol−H2O2 system was supposed
to originate from the catalysis of gold nanoparticles, which
facilitated the radical generation and electron-transfer
processes taking place on the surface of the gold nanoparticles. The effects of the reactant concentrations, the
size of the gold nanoparticles. and some organic compounds were also investigated. Organic compounds containing OH, NH2, and SH groups were observed to inhibit
the CL signal of the luminol−H2O2−gold colloids system,
which made it applicable for the determination of such
compounds
The relationships between PACIC scores and different self-management behaviors (N = 960).
No full text<p>The relationships between PACIC scores and different self-management behaviors (N = 960).</p
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