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Atrapados: Cómo las máquinas se apoderan de nuestras vidas by Nicholas Carr

By Nicholas Carr

Overview

Un potente e inquietante análisis de nuestra dependencia de las nuevas tecnologías, por el autor de Superficiales. ¿Qué está haciendo net con nuestras mentes?

¿Somos capaces de decidir qué tareas dejamos en manos del ordenador y cuáles nos reservamos? ¿Dedicamos nuestra atención a lo que queremos? Las nuevas tecnologías suponen un ahorro de trabajo, pero ¿podrían erosionar nuestra libertad?

Cada día, diversas aplicaciones nos ayudan a hacer ejercicio o incluso buscar pareja. Confiamos en una voz man made que nos guía paso a paso hasta nuestro destino. Las redes sociales nos incitan a recuperar amistades. l. a. automatización es imparable y ya se está apropiando incluso de las profesiones más cualificadas: los software program substituyen el ojo clínico del médico, el oído del músico, los angeles mano del arquitecto o l. a. pericia del piloto. Coches que conducen solos, ataques con drones militares... los angeles realidad supera con creces lo que hasta hace poco nos parecía ciencia ficción.

Tejido a base de curiosidades históricas y lúcidas descripciones de las últimas tendencias tecnológicas, económicas, psicológicas y neurocientíficas, Atrapados nos brinda una visión realista y alarmante de un poderoso fenómeno que está determinando nuestras vidas.

Carr lleva años cuestionando las ventajas reales de las tecnologías de los angeles información y favoreciendo el debate sobre un tema controvertido que nos afecta a todos.

La crítica ha dicho...
«De lectura obligatoria para todo aquel que tenga un smartphone.»
Jonathen Safran Foer, autor de Todo está iluminado

«Fascinante y revelador. Atrapados suscita los angeles necesaria reflexión sobre nuestra excesiva dependencia de las máquinas.»
Publishers Weekly

«Atrapados es un ensayo oportuno y genuine en el que Nicholas Carr reflexiona sobre las consecuencias nocivas de l. a. tecnología. Su lectura genera ganas de réplica.»
Mercedes Cebrián, Babelia

«Carr demuestra de manera tan elegante como convincente que es el momento de recuperar el arte de pensar y un mundo en el que las máquinas estés supeditadas a las necesidades humanas.»
Donald Norman

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Additional resources for Atrapados: Cómo las máquinas se apoderan de nuestras vidas

Example text

014 M), whereas higher and lower concentrations gave lower product yields. 29) [131]. With no surfactant, a 33% yield was obtained and 60% ee. Cationic surfactants, such as cetyltrimethylammonium bromide (CTAB) gave little product. Modest yields and enantioselectivities were obtained with anionic surfactants, such as SDS or SLS. Using the zwitterionic surfactant N-hexadecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate (54) the product was formed in 73% yield and 67% ee. 3 Nonionic Surfactants PEG is a cheap, nontoxic surfactant that is commonly used to enhance solubility of hydrophobic compounds in water.

A PS–PEG-supported NHC ligand coordinated to [Pd(allyl)Cl]2 gave good activity in the Suzuki coupling of aryl iodides and bromides at 50 ◦ C in water [159]. The catalyst was used for five reaction cycles with a slow decrease in yield from 91 to 82%. 3 Synthesis of a cross-linked polymeric support for palladium. 3) [160]. The resulting polymer (68) was coordinated to Pd(OAc)2 to give a material (69) that was active for the Heck coupling of aryl iodides and bromides in 50% aqueous ethanol at 100–140 ◦ C.

33) [143]. 1 Supported Palladium–Ligand Complexes Biphasic catalysis using a water-soluble catalyst allows the catalyst to be easily separated from the organic product. A disadvantage of this methodology is that it is often difficult to separate the catalyst from the inorganic salt by-products formed in these reactions. Although these salts often do not hinder catalyst activity initially, they eventually begin to precipitate from the aqueous catalyst solution, which can hinder catalyst recovery.

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