Maintenance of skilled performance with age: a descriptive examination of professional golfers

Demographic studies indicate a remarkable aging trend in North America. An accurate profile of the decline in physical and cognitive capabilities over time is essential to our understanding of the aging process. This study examined the maintenance of skilled performance across the careers of 96 professional golfers. Data were collected on scoring average, driving distance, driving accuracy, greens in regulation, putts per round, and number of competitive rounds played using online data archives. Analyses indicate that performance in this activity can be maintained to a greater extent than in activities relying on biologically constrained abilities. Although the generalizability of these results to "normal" aging populations is not known, they suggest that acquired skills can be maintained to a large extent in the face of advancing age.     

Proteins' promise--progress and challenges in ovarian cancer proteomics

Ovarian cancer is the leading cause of gynaecological cancer death. The mortality rate of ovarian cancer could be greatly decreased if there were a screening test which was able to detect the disease at an early stage, resulting in an increased probability of cure. The most promising prospect for the early detection of ovarian cancer comes from the rapidly advancing field of clinical proteomics. An increasing number of reports on the potential clinical application of proteomics research for early detection as well as risk assessment and management of ovarian cancer are being published. Although the research is very promising, major technical challenges are still preventing new discoveries in ovarian cancer proteomics from being translated into clinical practice.     

Before you open the doors: ten lessons from Florida's Faith and Community-Based Delinquency Treatment Initiative

In 2003, the Office of Juvenile Justice and Delinquency Prevention (OJJDP) provided Florida's Department of Juvenile Justice (DJJ) with a $3.5 million grant to design and implement a faith- and community-based program for incarcerated juveniles. Florida's experience developing a completely new program has provided valuable lessons regarding important issues to consider and address before clients are referred to the program. This article enumerates 10 key lessons from Florida's experience that can provide important guidance to other sites across the country hoping to develop faith-related services for youths in institutions.     

“人新世”和大加速（1780—2021）

“人新世”是环境史最新的前沿理论之一,是作为新纪元被列入地质年代表的一个新议题。20世纪中叶,地球上的水、能源和生物多样性方面发生了巨大变化,因此这一时段被视为“人新世”的起点。关于“人新世”的起源、确立、具体定义、政治性和潜在影响,学界存在争议,我在本文中对此进行了评述,展现了“人新世”概念的跨学科适应性和不同面向,勾画了全球环境史的时空尺度。     

越南战争的足迹：20世纪军事化的环境史

军事化指的是“军事进程”,是在经济、文化和环境的交织过程中实现的。从历史研究的角度看,研究军事化最主要的目的是为了非军事化。本文讨论20世纪全球范围内的军事化问题,重点考察越南军事化的环境史。1975年后越南对军事化的反应较为复杂,构成了当代越南经济复苏的重要背景。