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Investigaciones en gestión del riesgo de desastres para Colombia
La Unidad Nacional para la Gestión del Riesgo de Desastres (UNGRD) a través de la Comisión Nacional Asesora de Investigación en Gestión del Riesgo de Desastres en cumplimiento de su misionalidad, de los planes y la agenda internacional, presentan el Libro de Investigaciones en Gestión del Riesgo de Desastres para Colombia. Contribuciones locales, regionales y nacionales. Esta publicación desarrolla capítulos sobre gestión del riesgo de desastres relacionados con: calidad de agua, amenaza por tsunami, corredores viales, avenidas torrenciales, incendios forestales, percepción del riesgo, campesinos, biodiversidad y servicios ecosistémicos, soluciones basadas en la naturaleza, lecciones aprendidas y respondedores de emergencias. Estos capítulos hacen avanzar el conocimiento nacional con aportes desde la academia, entidades técnico-científicas, profesionales independientes y otros actores del SNGRD.
Land market distortions and aggregate agricultural productivity: Evidence from Guatemala
Farm size and land allocation are important factors in explaining lagging agricultural productivity in developing countries. This paper examines the effect of land market imperfections on land allocation across farmers and aggregate agricultural productivity. We develop a theoretical framework to model the optimal size distribution of farms and assess to what extent market imperfections can explain non-optimal land allocation and output in-efficiency. We measure these distortions for the case of Guatemala using agricultural census microdata. We find that due to land market imperfections aggregate output is 19% below its efficient level for both maize and beans and 31% below for coffee, which are three major crops produced nationwide. The regions with higher distortions show a higher dispersion in land prices and less active rental markets. We also find that the degree of land market distortions across locations co-variate with road accessibility and ethnicity and, in a lower extent, with education.
Digital Modulation Techniques
This newly revised and expanded edition of an Artech House classic builds on its success as far and away the most comprehensive guide to digital modulation techniques used in communications today. The second edition adds a wealth of up-to-date, critical material, including: Five new chapters devoted to orthogonal frequency division multiplexing (OFDM) covering its basics and practical implementation issues: peak-to-average power ratio (PAPR) reduction, synchronization, fading channel performance, and mitigation methods, as well as the newest developments such as wavelet OFDM schemes; New modulations for optical communications; Enhanced coverage of M-ary amplitude shift keying (ASK); More accurate bit error rate (BER) equations for quaternary phase shift keying (QPSK) and quadrature amplitude modulation (QAM); Enhanced coverage of fading channel mitigation methods such as channel estimate and diversity techniques; Fast-access comparison of all modulation schemes; New appendixes covering trigonometry identities, Fourier transform pairs and properties, and Q-function and error function values.
Social Media Storytelling
Offering a radical new toolbox for digital storytellers, this key text contains everything today’s media practitioners need to know about conceptualising, editing and producing stories for online platforms and audiences. This book teaches readers practical skills for increasing their reach online, strengthening their personal brand and improving follower counts across the social web, including main platforms such as Twitter, Snapchat, TikTok, Instagram and Facebook. Encouraging a DIY approach, the authors guide readers through various platforms and reveal which are best suited to their users and how to customise stories for different channels. Topics covered include storytelling with smart...
Colombia
Behind the media's focus on Colombia's drug war is an unmentioned horror story: the Dirty War that has given Colombia the worst human rights record in the hemisphere. With icy precision and passionate prose, Father Giraldo and Noam Chomsky reveal the deadly landscape of what Eduardo Galeano termed the "Democratatorship": how the United States helped Colombia carry out unrelenting human rights travesties; how the paramilitary system functions to shield the military from connection to death squad activities; and what Americans can do to change a situation funded with our tax dollars.
Current Vibe: Needs Plants: A 6x9 Inch Matte Softcover Journal Notebook with 120 Blank Lined Pages and a Funny Cover Slogan
MINIMALIST AND STYLISH JOURNAL Whether for your desk at home, your work or in your bag on the go this professionally designed 6x9 notebook provides the perfect platform for you to record your thoughts. This Journals pre-lined pages are ready and waiting to be filled. DETAILS: 120 Blank Lined White Pages Simple Stylish Typographic Cover Art DIMENSIONS: 6x9 inches PERFECT FOR: Everyday Dairy Personal Journal Wedding Planning Work Lists Creative Doodles College Planning
Isabel Allende
A series of interviews with the Chilean author.
