The present work aims at testing the hypothesis that carbon use efficiency (CUE) of sunflower, grain sorghum, wheat and chickpea crops, having different photosynthetic pathways (C3, C4) and yield composition (carbohydrates, proteins, lipids), will hold constant over the natural thermal regime occurring during the entire crop cycle in the open field. All crops were well watered. Sunflower and so...

The effects of sleep interruption and deprivation were studied in 21 patients with nocturnal asthma. Seven patients were awakened at 0200 on three consecutive night and exercised for 15 minutes. This produced no significant improvement in the overnight fall in peak expiratory flow rate (PEFR) compared with a control night of uninterrupted sleep. In a second study in five patients PEFR was measu...

The production of the pineal hormone melatonin displays circadian variations with high levels at night. The last enzyme involved in melatonin biosynthesis is hydroxyindole-O-methyltransferase (HIOMT, EC 2.1.1.4). The expression of the mRNA encoding chicken HIOMT was investigated in vivo and in vitro throughout the light/dark cycle, in constant darkness and with light interruption of the dark ph...

BACKGROUND Interruption of a non-nucleoside reverse transcriptase inhibitor (NNRTI)-regimen is often necessary, but must be performed with caution because NNRTIs have a low genetic barrier to resistance. Limited data exist to guide clinical practice on the best interruption strategy to use. METHODS Patients in the drug-conservation arm of the Strategies for Management of Antiretroviral Therap...

Most current work on spoken human-computer interaction has so far concentrated on interactions between a single user and a dialogue system. The advent of ideas of the computer or dialogue system as a conversational partner in a group of humans, for example within the CHIL-project and elsewhere (e.g. Kirchhoff & Ostendorf, 2003), introduces new requirements on the capabilities of the dialogue sy...

BACKGROUND The control of body weight and cardiac sympathetic function in patients with obstructive sleep apnoea-hypopnoea syndrome (OSAHS) are important because both factors have significant effects on the mortality of these patients. It has recently been reported that OSAHS has a significant effect on the secretion of leptin, a hormone involved in the control of body weight and sympathetic ne...

AIM The optimal duration of dual antiplatelet therapy (DAPT) following the use of new generation drug-eluting stents is unknown. METHODS AND RESULTS The association between DAPT interruption and the rates of stent thrombosis (ST) and cardiac death/target-vessel myocardial infarction (CD/TVMI) in patients receiving a Resolute zotarolimus-eluting stent (R-ZES) was analysed in 4896 patients from...

OBJECTIVE We examined the effect of interruption modality (visual or auditory) on primary task (visual) resumption to determine which modality was the least disruptive. BACKGROUND Theories examining interruption modality have focused on specific periods of the interruption timeline. Preemption theory has focused on the switch from the primary task to the interrupting task. Multiple resource t...

The impact of shifts in the spectral quality of light on morphogenesis, flowering, and photoperiodic gene expression during exposure to light quality of night interruption (NI) was investigated in Dendranthema grandiflorum. The circadian rhythms of plants grown in a closed walk-in growth chamber were interrupted at night for a total of 4 h, using light-emitting diodes with an intensity of 10 μm...

introduction preterm infants are exposed to irregular light for several weeks or months in the neonatal intensive-care unit (nicu). this lack of maternal entrainment, the exposure to irregular extrauterine lighting and care in the nursery may contribute to the disturbances in body temperature, sleep and physiological changes that are commonly experienced by preterm infants. materials and method...