Sentence examples for been demonstrated for certain from inspiring English sources

Nevertheless, no "animal reservoir" of the virus has been demonstrated for certain, so it is not known where, if anywhere, it might be hiding.

Both, growth promoting or inhibitory effects have been demonstrated for certain hematopoietic cells such as: mast cells, neutrophils, NK cells or dendritic cells [ 25, 26].

The tuning could be achieved by altering the balance of CDK5 and calcineurin activity as has been demonstrated for certain forms of homeostatic plasticity (Kim and Ryan, 2010), or by altering routes of Ca2+ entry or clearance.

Changes in levels of Cu and Zn have also been demonstrated for certain diseases, but an imbalance of the Cu/Zn ratio seems to be a better indicator of infection, vascular complications, and prognosis of diseases than Zn or Cu status alone [ 24].

Some were demonstrating for the first time.

Interestingly, differential activation of HSF-1 targets in response to heat stress has been demonstrated in certain cell types; for example, human retinoblastoma cells fail to upregulate Hsp70 upon heat shock, even though HSF-1 is activated and Hsp90 is induced (Mathur et al., 1994).

Alterations in the timing of aeroallergen production in response to weather variables have been clearly demonstrated for certain tree species, but less so for grass and weed pollens and mold (Katial et al., 1997; Emberlin et al., 2002; Clot, 2003).

Three loading scenarios are considered in this work, and it is demonstrated that for certain scenarios an analytical model likely over-predicts composite performance.

The ability of fungal hyphae to exhibit tropic growth responses in relation to changes in substratum topography is well-known in plant pathogens and has been demonstrated previously for C. albicans and certain dermatophytes [24, 25].

Hospital-level factors which have thus far been demonstrated to influence outcomes for certain defined clinical groups include availability of high-dependency beds with adequate medical staffing levels, co-localisation of ancillary specialties, nurse-to-patient ratios, teaching status and hospital size [ 29- 33].

It has been demonstrated that for the purposes of photocatalysis, a certain ratio of anatase to rutile, corresponding to anatase content extending from 40 to 80%, is desired as it causes a synergetic effect [9].