Nitrogen oxides (NO x ) emissions from passenger cars are significantly dependent on after-treatment techniques, cold start conditions, and driving behaviours. The widely-used selective catalytic reduction (SCR) technique has low effectiveness of reducing NO during the period or at speeds. As a new technique, ammonia creation conversion technology (ACCT) system can further decrease to achieve c...

Background: Few studies have examined the acute exercise-induced changes in cognitive performance in different thermal environments and the time course effects. Objective: Investigate the time-dependent effects of acute exercise on university students' processing speed, working memory and cognitive flexibility in temperate and cold environments. Method: Twenty male university students (age 23.5...

The aim of the present study was to examine whether improved running economy with a period of speed endurance training and reduced training volume could be related to adaptations in specific muscle fibers. Twenty trained male (n = 14) and female (n = 6) runners (maximum oxygen consumption (VO2 -max): 56.4 ± 4.6 mL/min/kg) completed a 40-day intervention with 10 sessions of speed endurance train...

This psychometric meta-analysis investigated the relation of cognitive and non-cognitive factors to training success Air Traffic Controllers by synthesizing 51 studies (N = 65,839). Cognitive were classified Cattel-Horn-Carrol theory. composite scores work samples also included. Non-cognitive consisted Big Five personality traits, biodata, motivation scores. Medium effect was measured for (k 45...

OBJECTIVES The primary aim of this study is to describe depression and physical function in nursing home residents with dementia, as well as to examine the associations between depression and balance function, lower limb muscle strength, mobility and activities of daily living. The secondary aim is to examine the differences in physical function between the groups classified as depressed and no...

We have studied the effect of nitrous oxide on cerebral haemodynamics in 24 healthy male volunteers. Hemispherical cerebral blood flow (CBF) was measured using the xenon-133 inhalation technique, blood flow velocities in the right middle cerebral artery were calculated using transcranial Doppler ultrasound and the pulsatility index (PI)--the inverse of which is theoretically proportional to flo...

Hamstring muscle injuries occur during high-speed activities, which suggests that muscular strength at high velocities may be more important than maximal strength. This study examined hamstring adaptations to training for maximal strength and for strength at high velocities. Physically active men (n = 25; age, 23.0 ± 3.2 years) were randomly divided into: (1) a resistance training (RT, n = 8) g...

In a randomized complete block design with repeated measures, ruminally cannulated crossbred beef steers (n = 24; 279 +/- 3.2 kg) had ad libitum access to a 90% concentrate diet and were injected daily with slaframine dichloride (SF) at doses of 0, 30, or 60 micrograms SF free-base/kg BW. On d 1, 2, 7, 14, and 21, salivary scores were determined hourly from -2 to 8 h relative to injection (0 h)...