Crystal structures of N ′-Aminopyridine-2-carboximidamide and N ′-{[1-(pyridin-2-yl)ethylidene]amino}pyridine-2-carboximidamide

© Eya'ane Meva et al. 2017. The crystal structures of N,-Aminopyridine-2-carboximidamide (C 6 H 8 N 4 ), 1, and N,-{[1-(pyridin-2-yl)ethylidene]amino}pyridine-2-carboximidamide (C 13 H 13 N 5 ), 2, are described. The non-H atoms in compound 1 are nearly planar (r.m.s. deviation from planarity = 0.0108 Å ), while 2 is twisted about the central N-N bond by 17.8 (2)-. Both molecules are linked by intermolecular N-H·N hydrogen-bonding interactions; 1 forms a two-dimensional hydrogen-bonding network and for 2 the network is a one-dimensional chain. The bond lengths of these molecules are similar to those in other literature reports of azine and diimine systems

An Address on "Pride"

Prepared for the Centennial of The Ohio State University

LEICESTERSHIRE (Reino Unido) (Inglaterra). Mapas generales. 1787 (1775-1777). 1:134000

Escala gráfica de 6 millas [= 7,2 cm]. Coordenadas referidas a un meridiano que no se especifica (O 0°07'05''--O 0°02'25''/N 52°58'30''--N 52°22'00''). Recuadro geográfico de 5' en 5'. Orientado con lis en rosa de ocho vientosDestaca especialmente la división intermunicipal y señala los límites con los condados adyacenteTabla de signos convencionales para indicar las principales ciudades, pueblos, aldeas y granjas del condad

Charging a quantum battery with linear feedback control

Energy storage is a basic physical process with many applications. When considering this task at the quantum scale, it becomes important to optimise the non-equilibrium dynamics of energy transfer to the storage device or battery. Here, we tackle this problem using the methods of quantum feedback control. Specifically, we study the deposition of energy into a quantum battery via an auxiliary charger. The latter is a driven-dissipative two-level system subjected to a homodyne measurement whose output signal is fed back linearly into the driving field amplitude. We explore two different control strategies, aiming to stabilise either populations or quantum coherences in the state of the charger. In both cases, linear feedback is shown to counteract the randomising influence of environmental noise and allow for stable and effective battery charging. We analyse the effect of realistic control imprecisions, demonstrating that this good performance survives inefficient measurements and small feedback delays. Our results highlight the potential of continuous feedback for the control of energetic quantities in the quantum regime.Comment: v1: 10 pages, 8 figures. Comments welcome! v2: Final versio

Farm Management - Bugger the roots, where is the future?

The Farm Management discipline has long been closely aligned with agricultural economics. The question we raise is not where either discipline came from but where is Farm Management going. The impact of globalisation, the rising tide of deregulation and chain reversal mean that farm management professionals who have traditionally focused on optimisation of activities at a farm level are now commonly expected to use sociology and management science to explain economic organisation and performance on farms. They also are required to look at relationships in the value chain(s) in which the farm sits. This paper will analyse the implications of such change for Farm Management professionals.Farm Management, value chains, Farm Management,

A review and evaluation of secondary school accountability in England:Statistical strengths, weaknesses, and challenges for 'Progress 8'

School performance measures are published annually in England to hold schools to account and to support parental school choice. This article reviews and evaluates the Progress 8 secondary school accountability system for state-funded schools. We assess the statistical strengths and weaknesses of Progress 8 relating to: choice of pupil outcome attainment measures; potential adjustments for pupil input attainment and background characteristics; decisions around which schools and pupils are excluded from the measure; presentation of Progress 8 to users, choice of statistical model, and calculation of statistical uncertainty; and issues related to the volatility of school performance over time, including scope for reporting multi-year averages. We then discuss challenges for Progress 8 raised by the COVID-19 pandemic. Six simple recommendations follow to improve Progress 8 and school accountability in England.Comment: 67 pages, 8 figure

A Study of George Canning's Sustained Campaign for the Recognition of Latin America from 1822-1826

This thesis analyzes George Canning's persuasive campaign to gain British recognition of Latin America. The modification of an exigence capable of change through persuasion was emphasized, and the audiences which had the power to bring about the change were identified. The campaign was broken into seven discernible, but dependent, stages which were examined to test the progress of the campaign. Canning was the prime mover of the campaign, and through a series of petitions, speeches, and press releases plus other strategic maneuvers, gained the necessary public and political support to successfully achieve his goal

Elfazepam and Synovex-S Influences on Growth and Carcass Characteristics of Steers Fed Two Dietary Energy Levels

Synovex-S improves the average daily gain and carcass traits of steers and reduces losses under high feed price levels when compared to nonimplanted steers. High energy diets also influence average daily gain (ADG) favorably, but they increase the amount of fat and decrease the protein in carcass soft tissue in comparison to low energy diets