Stimuli-responsive metal-organic frameworks (MOFs) have gained increasing attention recently for their potential applications in many areas. We report the design and synthesis of a water-stable zirconium MOF (Zr-MOF) that bears photoresponsive azobenzene groups. This particular MOF can be used as a reservoir for storage of cargo in water, and the cargo-loaded MOF can be further capped to constr...

I t is indeed an honor to be invited to this platform. One has only to read the names of my distinguished predecessors to realize that, as the saying goes, I have thirty-seven acts that are hard to follow. As a mostly pure mathematician my concern is increased when I note that thirty-two of the lectures have dealt with applications of mathematics to other sciences. The true desperation of my pr...

We present an extensive review of the literature on remote sensing and land change in Amazonia as part of a call for new methods to study the recent expansion of mechanized annual cropping. Following the review is a presentation of the use of multitemporal Moderate Resolution Imaging Spectroradiometer (MODIS) 250-meter Vegetation Index (VI) data to study processes of intensification of mechaniz...

OBJECTIVE To determine whether an active rural lifestyle during childhood and adolescence, defined as low farm mechanization, was associated with bone measures later in life. METHODS DXA bone data from total body, hip and spine, and pQCT data from 4% and 20% distal radius were obtained on 330 individuals (157 women) aged 20-66 years who farmed at least 75% of their lives. Primary bone outcome...

the nutritional value of cereal straw can be increased using urea treatments as a source of ammonia. the conventional urea treatment process for cereal straw is a laborious and time-consuming task. it is essential to facilitate or eliminate part of the procedure with the use of machinery. this study examines the mechanical urea treatment of wheat straw and compares chemical components and diges...

Debates over the effects of technological change on work continue to generate a wide and confusing array of findings. One reason for the lack of consensus is that empirical research based on large samples has yet to adequately address the core issue: the relationship, if any, between the level of mechanization and the characteristics of work. This relationship is explored using data from the 19...

physical characteristics of agricultural products are the most important parameters in the design of grading, conveying, processing and packaging systems. among these physical characteristics, volume, mass, projected area and center of gravity are the most important for sizing systems. in this study, the segmentation method was used to estimate lemon volume. a total of 50 randomly selected lemo...