Recent research has demonstrated an important interaction between Thielaviopsis basicola, the cause of black root rot, and the root-knot nematode, Meloidogyne incognita (Walker et al., 1998; 1999; 2000). This interaction causes dramatic reductions in early-season growth in producers’ fields and yield reductions of 21 to 44% have been documented in microplot and field research. The interaction i...

In a number of important clinical issues such as evaluation of the efficacy or effectiveness of therapeutic or preventive interventions as well as for comparing the harms of interventions, randomized controlled trials (RCTs) provide the highest levels of evidence, either directly or indirectly. It is obvious that critical appraisal of these studies to assess their validity and precision is of p...

there has been too much of a one-way flow drift down a river of evidence. researchers from rich countries have produced the primary evidence which they proceed to summarise within reviews. these summaries have directed care worldwide. however, things are changing and the river of evidence can flow in the other direction. the care of women with eclampsia has been changed or refined throughout th...

participation in clinical trials can be useful for the health of a person, in who it is conducted, but it does not have to be - it can even be harmful. therefore, primary motive to accept such risk is humanity and human wish to contribute to the progress of medicine; this is expressed by personal consent. the consent, however, can be an expression of personal humanity, and for this, it is not l...

Wildfire severity and subsequent ecological effects may be influenced by prior land management, via modification of forest structure and lingering changes in fuels. In 2002, the Hayman wildfire burned as a low to moderate-severity surface fire through a 21-year pine regeneration experiment with two overstory harvest cuttings (shelterwood, seed-tree) and two site preparations (scarified, unscari...

conclusions there is not enough evidence to support or refute the routine use of fish oil supplements during pregnancy for the prevention or treatment of diabetes. it is suggested that further randomized controlled trials be conducted to evaluate the role of fish oil supplementation in pregnancy. context one of the most common complications of pregnancy is gestational diabetes mellitus (gdm), w...

stroke is an important cause of death in the world and disability world‑wide especially in developed countries. following acute phase of stroke, some procedures and medical treatment such as thrombolytic agents has been recommended; nevertheless many patients have enduring deficits. thus, there is a realistic need to develop treatment strategies for reducing neurological deficits. however, the ...