On Gauge Equivalence of Tachyon Solutions in Cubic Neveu-Schwarz String Field Theory

Simple analytic solution to cubic Neveu-Schwarz String Field Theory including the $GSO(-)$ sector is presented. This solution is an analog of the Erler-Schnabl solution for bosonic case and one of the authors solution for the pure $GSO(+)$ case. Gauge transformations of the new solution to others known solutions for the $NS$ string tachyon condensation are constructed explicitly. This gauge equivalence manifestly supports the early observed fact that these solutions have the same value of the action density.Comment: 8 pages, LaTe

Evaluación genética en etapa de vivero de áreas productoras de semillas (APS) de Pino Ponderosa en Nordpatagonia

El Pino Ponderosa (Pinus ponderosa Dougl. ex Laws) es la principal especie forestal implantada en secanoen la Patagonia. Su potencialidad productiva y la disponibilidad de tierras para su cultivo permiten proyectarla continuidad de su uso en plantaciones comerciales, para lo que es indispensable asegurar la provisión desemillas de adecuada calidad genética. Las semillas utilizadas en la última década se produjeron en una seriede rodales mediante ensayos para evaluar su descendencia. El objetivo del presente trabajo es evaluar estosrodales ensayando su descendencia. En este primer reporte presentamos los resultados de una evaluaciónen etapa de vivero. Se ensayaron 31 procedencias locales seleccionadas (Áreas Productoras de Semillas,APS) en dos sitios, midiendo altura y diámetro a la altura del cuello en plantines de 2 años de edad. A través de análisis de la varianza se probó un claro efecto de interacción entre las APS y los sitios, y también diferencias entre las APS dentro de cada sitio. Seguidamente, se establecieron rankings de las APS por sitio y variable evaluada. A través de comparaciones de a pares se formaron grupos homogéneos. También se estimó la estabilidad genotípica de las APS por medio del cálculo de sus ecovalencias. Los resultados son aún preliminares, pero el haber probado diferencias en tan temprana edad nos alerta sobre la importancia de la procedencia de las semillas a utilizar para la producción comercial. Se espera que estas diferencias se acentúen en edades más avanzadas. Para probarlo, ya se han establecido ensayos de plantación

Vertical farms in the context of sustainable development

The article analyzes some of the fundamental aspects of sustainable development of cities, connected in many respects with the concept of ecological architecture. One of the main concepts of sustainability is considered in detail: the city as an eco-sustainable and balanced system, objects of architecture as a full-fledged part of this system, which, most likely, will be determined by one of the directions of this development - the development of landscape architecture as an instrument of integration of nature into the urban environment. At the same time, the variety of its functional forms and architectural methods in the system of organization of internal and external space is outlined, as well as its interrelation with energy-saving architecture, which defines them as the two most important components of eco-sustainable development. Forms of development of landscape architecture are considered in the review of analogs, as an example (an object of agricultural urbanism) a thesis on the topic of "The Vertical Farm Agroindustrial Complex" is presented

Democratic leadership practices in Edo State Nigeria: A justification for a Biomimetic-based democratic alternative

This article - the last of a two-part assessment of leadership practices in community development processes, noted that since Nigeria’s independence 6 decades ago, only the past 2 decades has experienced uninterrupted democracy. Considering the importance of ideal democratic processes in actualizing progressive community development, the paper examined participation in politics, relative to leadership among geese to justify the need for nature-based alternative leadership practices in egalitarian developing communities. Analysis of empirical evidences from literature was used to evaluate key leadership issues, discuss political situations, and models of citizens’ participation across Edo State communities in Nigeria. Observed democratic leadership in the study area turned out as “practices that are alien to democracy” because it lacked the basic tenets of democracy. Several indices of participation in politics were articulated and matched against practices among the geese towards articulating a Biomimetic-based Democratic Leadership Practices for community progression. Recommendations were made and implication drawn