Explore the vast range of titles available.

Utilization of LiFePO 4 as a cathode material for Li-ion batteries often requires size nanonization coupled with calcination-based carbon coating to improve its electrochemical performance, which, however, is usually at the expense of tap density and may be environmentally problematic. Here we report the utilization of micron-sized LiFePO 4 , which has a higher tap density than its nano-sized siblings, by forming a conducting polymer coating on its surface with a greener diazonium chemistry. Specifically, micron-sized LiFePO 4 particles have been uniformly coated with a thin polyphenylene film via the spontaneous reaction between LiFePO 4 and an aromatic diazonium salt of benzenediazonium tetrafluoroborate. The coated micron-sized LiFePO 4 , compared with its pristine counterpart, has shown improved electrical conductivity, high rate capability and excellent cyclability when used as a ‘carbon additive free’ cathode material for rechargeable Li-ion batteries. The bonding mechanism of polyphenylene to LiFePO 4 /FePO 4 has been understood with density functional theory calculations. Nanonization of battery electrode particles is a usual way to enhance their conductivity, but the decreased tap density is detrimental to battery performance. Here, the authors coat micron-sized lithium iron phosphate with a conducting polymer layer and demonstrate some excellent electrochemical properties.

With pedagogical philosophy and practice changing significantly, faculty development has become much more important. Each chapter in this volume identifies particular areas of opportunity, and although the authors recognize that not every initiative suggested can be implemented by all institutions-circumstances such as institutional mission, available resources, and governance issues will dictate that-it is their hope that every reader will be able to glean details that might provide a spark or fan a flame on campus. As educators themselves, McKee, Johnson, Ritchie, and Tew invite you to consider the challenges, explore the possibilities, and join them on the journey. This is the 133rd volume of this Jossey-Bass higher education series. New Directions for Teaching and Learning offers a comprehensive range of ideas and techniques for improving college teaching based on the experience of seasoned instructors and the latest findings of educational and psychological researchers.

With pedagogical philosophy and practice changing significantly, faculty development has become much more important. Each chapter in this volume identifies particular areas of opportunity, and although the authors recognize that not every initiative suggested can be implemented by all institutions-circumstances such as institutional mission, available resources, and governance issues will dictate that-it is their hope that every reader will be able to glean details that might provide a spark or fan a flame on campus. As educators themselves, McKee, Johnson, Ritchie, and Tew invite you to consider the challenges, explore the possibilities, and join them on the journey. This is the 133rd volume of this Jossey-Bass higher education series. New Directions for Teaching and Learning offers a comprehensive range of ideas and techniques for improving college teaching based on the experience of seasoned instructors and the latest findings of educational and psychological researchers.

The structural properties of lumber from 25-, 30-, and 35-year-old loblolly plantations with 8- by 8-foot original tree spacing, thinned at age 18, which resulted in stands of less than 174 trees at harvest, were evaluated. The results indicate that a significant percentage of the tested lumber could not meet the required flexural strength and stiffness values for the assigned visual grades. It was evident that the percent of acceptance to grade requirements increases with tree age. However, even at age 35, the percent of compliance to flexural strength and stiffness design requirements were only 89 and 52 percent, respectively.

The men who shaped early English industrial cities forged centres with large manufacturing districts and expanding railway and wharfage facilities for moving their products to market. They made little or no provision for facilities such as community centres and public parks, and programmes such as work safety campaigns, from which they would apparently derive little direct financial gain. In Canada, the capitalists who founded industrial Montreal during the nineteenth century adopted the same narrow attitude. While a wide range of forces, from climate, topography and relative location, to cultural traditions and even the personalities of individual leading citizens help shape the urban environment, the image of the function of a city held by those dominant in city life ultimately determined the form and function of many features of city life. Therefore, public facilities such as street networks, parks and beaches may evolve in response to the wishes of a select few rather than the relatively impotent populace.

TO THE EDITOR OF THE NEW YORK TIMES: In THE TIMES today is an article headed \"Motorists Urged to Use the Subway.\" It tells us that there is plenty of parking space along the subway lines, which motorists could use instead of bringing their cars to crowded Manhattan.