how to cite this article: abbaskhanian a, ehteshami s, sajjadi s, rezai ms. effects of piracetam on pediatric breath holding spells: a randomized double blind controlled trial. iran j child neurol autumn 2012; 6(4): 9-15.   abstarct: objective breath holding spells (bhs) are common paroxysmal non-epileptic eventsin the pediatric population which are very stressfull despite their harmlessnature....

Changes in skin blood flow during apneic spells were determined in 18 preterm infants using a diode laser Doppler flow meter without light conducting fibres. Heart rate, nasal air flow, impedance pneumography, skin and incubator temperature and laser Doppler skin blood flow were recorded simultaneously in each infant. During 212 apneic spells with a duration of 11.6 +/- 7.5 s (mean +/- S.D.) (r...

Cotton yield under the rainfed farming system in tropical semi-arid regions is significantly decreased by prolonged dry spells. In this context, supplemental irrigation (SI) with treated wastewater emerges as a strategy for sustainability of agricultural production besides contributing to reduction fertilizer costs. The objective research was evaluate productivity, photosynthetic parameters, fi...

The horizontal and vertical structure of unusually warm and dry spells (WDS) over the central parts of South America during the winter and post-winter months (JJAS) are studied. During WDS the mean temperature and humidity anomalies over central Brazil are about +4.1C and −13.2%, respectively. The mean duration of WDS is 11 days and their mean frequency is less than one per year during the mont...

An understanding of the limit on potential predictability is crucial for developing appropriate tools for extended-range prediction of active/break spells of the Indian summer monsoon (ISM). The global low-frequency changes in climate modulate the annual cycle of the ISM and can influence the intrinsic predictability limit of the ISM intraseasonal oscillations (ISOs). Using 104-year (1901–2004)...