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2011, un año de récords en la Olimpiada Peruana de Química (OPQ)
(Pontificia Universidad Católica del Perú, 2011-02-21) Chong, Miguel
The Peruvian Chemistry Olympiad (OPQ) set a new participation record, with over 2,000 students nationwide. Furthermore, the Peruvian National team achiev edits greatest success in the International Chemistry Olympiad (IChO) and the Iberoamerican Chemistry Olympiad (OIAQ), with a total of seven awards.
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¿Al fin nanopartículas de óxido de hierro estables en el cuerpo humano?
(Pontificia Universidad Católica del Perú, 2011-02-21) Requejo-Roque, Katherinne Isabel
Currently, it is possible to obtain iron oxide nanoparticles soluble in water with high stability in biological environments through thermal decomposition at high temperatures and ligand exchange. This method of synthesis allows good control of size distribution in order to obtain monodispersed nanoparticles with surfaces suitable for functionalization which is necessary for biological applications.
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Compendio de estadísticas
(Pontificia Universidad Católica del Perú, 2011-02-21) Ortega San Martín, Luis
No presenta resumen
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Los cristales aperiódicos: treinta años del descubrimiento de los cuasicristales
(Pontificia Universidad Católica del Perú, 2011-02-21) Landauro, Carlos V.
Almost thirty years after the discovery of quasicrystals and after the Nobel Prize in Chemistry awarded to their discoverer, this short paper reviews the quasicrystals from a particular point of view. In the present paper the state of the art knowledge of quasicrystals is presented starting from their discovery and finishing with their manipulation at the nanoscopic scale.
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Los cuasicristales: un premio Nobel a la perseverancia
(Pontificia Universidad Católica del Perú, 2011-02-21) Argüelles Delgado, Alonso José
This year’s Nobel Prize in Chemistry was awarded to Prof. Dan Shechtman for the discovery of quasicrystals. Quasicrystals are a kind of crystals which violate someprinciples formulated by the modern science of crystallography,namely because of their aperiodicity. Dan Shechtman proved that this form of matter is different from the common crystals. The discovery of quasicrystals was unexpected and received harsh criticism. Ultimately, experimental data confirmed Shechtman’s hypothesis. Quasicrystals have been extensively studied and their unique properties have been applied successfully in different scenarios.
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Editorial. Revista de Química; Vol. 25 Núm. 1-2 (2011
(Pontificia Universidad Católica del Perú, 2011-03-15) Ortega San Martín, Luis
No presenta resumen
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El Escudo Nacional del Perú y la Química
(Pontificia Universidad Católica del Perú, 2011-02-21) Rabinovich, Daniel
No presenta resumen
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Fotosistema II y fotosíntesis artificial: buscando una nueva alternativa energética
(Pontificia Universidad Católica del Perú, 2011-02-21) Arismendi Romero, Graciela
With the elucidation of the crystal structure of photosystemII (PSII), an important step in the search for new environmentally friendly energy alternatives has been taken. The attempt to imitate the characteristic reaction of photosynthesis (in order to manufacture ecologically friendly fuels) could represent a new opportunity to reduce our dependence on fossil fuels.
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El luminol
(Pontificia Universidad Católica del Perú, 2011-02-21) Cedrón, Juan Carlos
Forensic investigation has a small partner for almost a century: luminol. This simple molecule has helped to solve many murders because of its peculiarity of emitting light upon contact with tiny amounts of blood residues.
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“Neurogastronomy. How the Brain Creates Flavor and Why it Matters”, Gordon M. Shepherd
(Pontificia Universidad Católica del Perú, 2011-03-01) Gonzales Gil, Patricia
No presenta resumen
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Noticias Breves
(Pontificia Universidad Católica del Perú, 2011-02-21) Rey de Castro, Ana; Ortega San Martín, Luis; Bernabé Matienzo, Renzo
This section contains a small compilation of news andevents that took place in Peru and that are interestingfrom a chemistry perspective. You will see that Chemistryis present in almost everything in our everyday life.
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Nuevas puertas se abren en la síntesis orgánica: Síntesis Total de (±)-Aspidofilina A
(Pontificia Universidad Católica del Perú, 2011-02-21) Medina, Juan Pablo
Organic synthesis has gone through many changes over the past few years, new concepts and reactions have been incorporated into the tools available for the synthesis. In 2011 the synthesis of Aspidophylline A, an alkaloid furoindoline, was reported. This synthesisis of great importance because it validates the interrupted Fischer indolization.
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Pasatiempos
(Pontificia Universidad Católica del Perú, 2011-03-01) Hernández García, Yulán
No presenta resumen
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Recomendaciones en la red
(Pontificia Universidad Católica del Perú, 2011-03-06) Zapata Ramirez, Victor
- Periodic Table of Videos (http://www.periodicvideos.com)- MIT Open Courseware (http://www.ocw.mit.edu)- Cambridge Chemistry Challenge (www.c3l6.org)
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El selenio, un elemento poco conocido con un rol biológico importante
(Pontificia Universidad Católica del Perú, 2011-03-06) Cañari Chumpitaz, Cristhian
Selenium is an essential micronutrient present in various organisms including human beings. This element may be found in different organic and inorganic metabolites, and selenocysteine (Sec) is the most important. The insertion of Sec in selenoproteins uses a unique mechanism that involves the recoding of the UGA codon. This process requires new RNA fragments like the selenocysteine insertion sequence (SECIS) in the mRNA. The function of many selenoproteins is not known completely; however, some of them are involved in intracellular redox signaling regulation, redoxhomeostasis and thyroid hormone metabolism. Se deficiency in humans affects human health and results in diseases such as cancer, Keshan disease and hormonal disfunctions.
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Tesis de Licenciatura y Maestría sustentadas en la Sección Química de la PUCP
(Pontificia Universidad Católica del Perú, 2011-02-21) Ortega San Martín, Luis
Aquí encontrará un resumen ampliado de las tesis de licenciatura y maestría presentadas en 2011 por los alumnos de investigación de la sección Química dela PUCP.
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¿Tiene sentido educar para reciclar residuos sólidos y no hacerlo? El caso de la Pontificia Universidad Católica del Perú
(Pontificia Universidad Católica del Perú, 2011-03-01) Fox Llerena, Estefanía; Koo Urcia, Gabriel; Chapell Merino, Dania
Nowadays, inadequate solid waste management is an ongoing problem of modern societies, as it involves health and environmental risks as well as economic losses. The PUCP is one example where solid waste disposal is not quite right; but there are a number of alternatives that could be implemented to take advantage of this waste and generate new benefits.
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Wasabi: del ámbito gastronómico a las alarmas contra incendios
(Pontificia Universidad Católica del Perú, 2011-02-21) Ortiz Rodriguez, Bruno A.
A group of Japanese researchers has developed a fire alarm that does not depend on people’s audition, but on their sense of smell. This alarm releases allylisothiocyanate in spray to wake people up and hence inform them of a hazardous situation like a fire.