Parental knowledge of their students' backpack weight and contents was assessed by identifying 188 students who carried backpacks weighing at least 10% of their body weights through a survey of 745 students in three elementary schools. Most parents (96%) had never checked their child's backpack weight; 34% had never checked the backpack contents.

The moist temperate Himalayas, as one of the major ecological zone of Pakistan, deserve specific attention to the conservation of environment and the sustainable development of natural resources. During the last hundred years, the area has been subjected to major structural changes leading to a decrease of about fifty per cent of the potential forest area. The decrease in forest cover, combined...

Suppose we are given n coins out of a collection of coins of two distinct weights w0 and w1, true and counterfeit coins, respectively, where d of them are counterfeit coins. Assume we are allowed to weigh subsets of coins in a spring scale. Determine the counterfeit coins in a minimal number of weighing. This problem is equivalent to the following learning problem: Given a linear function f = x...

In fabricating flowmeters, the meter's calibration is its final and accuracy determining step that comprises a great time consumption relative to its completion from its single component parts. Thus calibration (unless the respective time of calibration for a flow meter is not minimized) may represent a relevant contribution to fabrication costs. High-accuracy liquid flow calibration facilities...

The moist temperate Himalayas, as one of the major ecological zone of Pakistan, deserve specific attention to the conservation of environment and the sustainable development of natural resources. During the last hundred years, the area has been subjected to major structural changes leading to a decrease of about fifty per cent of the potential forest area. The decrease in forest cover, combined...

Abstract Introduction Although suicides are more prevalent during the day, risk of suicide is highest at night when adjusted for population wakefulness. It unclear how nighttime patterns vary by demographic and clinical subgroups. Methods Population wakefulness data were combined with time fatal injury 78,647 from 2003-2017. The primary outcome was number per hour as an offset/exposure term. Su...

Within the sample of unidentified γ-ray sources found in the first survey of our Galaxy, AX J1838.0-065 is particularly interesting due to its likely physical association with the newly discovered TeV source HESS J1837-069 (Aharonian et al. 2005a). In fact, its position coincides with the center of gravity of the TeV emission and therefore has been suggested by Aharonian et al. (2005a) as the m...