Various workers have studied the effect of fluoride on respiration rates of plant tissues (1, 7, 8, 9, 14, 18, 19, 22, 23). In some cases fluoride has been found to stimulate respiration and in others to inhibit it. Ordin and Jacobson (23) found a marked inhibition in oxygen uptake when barley roots were treated with fluoride concentrations of 0.002 M. Bonner and Wildman (7) observed similar re...

Foliar respiration is a major component of ecosystem respiration, yet extrapolations are often uncertain in tropical forests because of indirect estimates of leaf area index (LAI). A portable tower was used to directly measure LAI and night-time foliar respiration from 52 vertical transects throughout an old-growth tropical rain forest in Costa Rica. In this study, we (1) explored the effects o...

INTRODUCTION Ischemic postconditioning (PoCo) and cyclosporine A (CysA) given prior to reperfusion reduce myocardial infarct size after ischemia/reperfusion. Ischemic postconditioning's protection is characterized by better preservation of mitochondrial respiration and calcium retention capacity. Protection by CysA is not entirely clear. Cyclosporine A inhibits not only mitochondrial permeabili...

background:  assessment  of quality-of-life (qof) as  an outcome   measure   after  deep   brain  stimulation   (dbs) surgery in patients  with parkinson’s disease  (pd) need  a valid, reliable and responsive  instrument. the aim of the current   study   was   to   determine   responsiveness   of validated  persian  version  of pd questionnaire  with  39- items (pdq-39) after dbs surgery in pat...

Background: Without the meaning in life and setting goals, the life will be full of pain and suffering. Hence, psychologists try to discover patient’s meaning in life and guiding it. A good questionnaire is very important to identify and measure meaning in life. Therefore, the present study focused on design and psychometric assessment of meaning in life questionnaire in patients with SCI...

sewage sludge with having the organic matter is considered as a source of micro and macro elements. in order to investigate the effect of different levels and period of application of sewage sludge (ss) on organic matter, respiration, and acid and alkaline phosphatase activity, factorial design were studied, in 3 replications. sewage sludge at five levels, (20 and 40 tons of sewage sludge, 20 a...

Np, for NPP Nec, Net ecosystem carbon exchange, as measured by micrometeorologists NB, Net biome productivity Gp, Gross primary productivity Jpmax, maximum flux density of canopy photosynthesis Reco, ecosystem respiration Rplant, plant respiration Rauto, soil autotrophic respiration Rhetero, soil heterotrophic respiration Rsoil, total soil respiration Ea,actual evaporation Ep, potential evapora...

Olfactory perception relies on an active sampling process, sniffing, to rapidly deliver odorants from the environment to the olfactory receptors. The respiration cycle strongly patterns the flow of information into the olfactory systems, but the behavioral significance of particular sniffing patterns is not well understood. Here, we monitored the frequency and timing of nasal respiration in rat...

Changes in water and nitrogen (N) availability due to climate change and atmospheric N deposition could have significant effects on soil respiration, a major pathway of carbon (C) loss from terrestrial ecosystems. A manipulative experiment simulating increased precipitation and atmospheric N deposition has been conducted for 9 years (2005-2013) in a semiarid grassland in Mongolian Plateau, Chin...