In temperate agricultural watersheds, the rehabilitation of tree vegetation in degraded riparian zones can provide many ecosystem services. This study evaluated ecosystem service provision potential following the conversion of non-managed herbaceous buffers to hybrid poplar (Populus spp.) buffers in three watersheds (555–771 km2) of southern Québec (Canada), with contrasting agricultural land u...

We coordinated a large-scale evaluation of northern bobwhite (Colinus virginianus) population response to establishment of 9-m to 37-m linear patches (buffers) of native herbaceous vegetation along rowcrop field margins as part of the Conservation Reserve Program practice Habitat Buffers for Upland Birds (CP33). We compared northern bobwhite covey densities on 1,088 paired row-crop fields with ...

Two new non-barbiturate buffers have been formulated for serum protein electrophoresis on cellulose acetate membranes. Both buffers give five distrinct fractions and are suitable for all systems, but have been primarily designed to meet the needs of the Gelman "Sepratek" system. One buffer is a tris(hydroxymethyl)aminomethane (Tris)/hippurate formulation; the other is composed of Tris/N-[tris(h...

It was a strange choice to ask me, who has not contributed to the description of the titration behavior of proteins, to discuss tha t subject. Nevertheless I am pleased to attempt to summarize the state of knowledge for our present purposes. Our best objective in this monograph is surely to make ourselves and each other better informed; we will be examining the meaning of terms for that purpose...

background:in the recent decade, the reverse genetics method has been broadly used for rescue of negative-stranded rna viruses from cdna or viral minigenomes. this technique has been applied to study different steps in virus replication and virus-host interactions. reverse genetics could also be implemented for design of new vaccines. the t7 rna polymerase activity as well as virus (nucleocapsi...

background : cytokines produced by different subsets of t cells are the key mediators to adjust the quality of immune responses. despite evidence of induction of an immune reaction against tumors such as breast cancer, not all responses are protective. in this study we attempt to evaluate the expression profile of several cytokines from the t helper 1 and 2 subsets in blood cells from patients ...

This paper reviewed the comparison between different clock distribution schemes which used for low power VLSI design which are the most important aspect in the industry. The main clock distribution schemes are single driver clock scheme and distributed buffers clock scheme. There are different tradeoffs in both the techniques such as size of buffers, number of buffers etc.

In recent years, there has been growing recognition of the importance of riparian buffers between agricultural fields and waterbodies. Riparian buffers play an important role in mitigating the impacts of land use activities on water quality and aquatic ecosystems. However, evaluating the effectiveness of riparian buffer systems on a watershed scale is complex, and watershed models have limited ...

Riparian buffers are commonly promoted to protect stream water quality. A common conceptual assumption is that buffers “intercept” and treat upland runoff. As a shift in paradigm, it is proposed instead that riparian buffers should be recognized as the parts of the landscape that most frequently generate storm runoff. Thus, water quality can be protected from contaminated storm runoff by disass...