The present study aimed to investigate how the heat-related increase in deaths in summer and the extent of mortality displacement depend on influenza and other categories of mortality in the previous winter, which when low leaves a greater pool of susceptible individuals. Mortality data from Stockholm, Sweden, from 1990-2002 were stratified into a summer period and a winter period. A Poisson re...

amitraz is one of the pesticides which is used in a vast area for controlling of the common pistachio psyllid, agonoscena pistaciae (hem.: aphalaridae). in this study the synergistic effect of piperonyl butoxide (pbo) on the toxicity of amitraz on adults of rafsanjan population of common pistachio psyllid was evaluated by residual contact vial (rcv) in laboratory conditions. the results showed ...

We documented cover characteristics at white-tailed deer (Odocoileus virginianus dakotensis) bedding and feeding sites on winter and summer ranges in the central Black Hills, South Dakota and Wyoming. Radiolocations of female (2,592; n 5 73) and male (573; n 5 12) deer were compared with 1,087 random locations. Characteristics of cover recorded at deer and random locations included basal area, ...

INTRODUCTION Park amenities promote visitation and physical activity during summer. Physical activity declines during winter. Identifying park amenities that promote visitation during winter would increase year-round activity. The purpose of this study was to determine how park visitation, amenity choice, and physical activity intensity change across seasons. METHODS Physical activity intensi...

Peroxy radicals (HO2 +6RO2) were measured at the Weybourne Atmospheric Observatory (52 N, 1 E), Norfolk using a PEroxy Radical Chemical Amplifier (PERCA) during the winter and summer of 2002. The peroxy radical diurnal cycles showed a marked difference between the winter and summer campaigns with maximum concentrations of 12 pptv at midday in the summer and maximum concentrations as high as 30 ...

The difference of reclaimed water qualities between in summer and in winter were proved considerable. Reclaimed water derived in spring or summer could be applied irrigating in some arid region, which have been considered a rational renewable resource of water. Yet in winter, reclaimed water would run off into river or stream in vain. The idea of storing it in winter and being ready for the nex...

[1] Polar mesospheric clouds (PMC) were observed by an Fe Boltzmann temperature lidar at the South Pole in the 1999–2000 and 2000–2001 austral summer seasons. We report the study of interannual, seasonal, and diurnal variations of PMC using more than 430 h of PMC data. The most significant differences between the two seasons are that in the 2000– 2001 season, the PMC mean total backscatter coef...

Levoglucosan, a highly specific tracer of particulate matter from biomass burning, has been used to study the influence of residential wood burning, agricultural waste burning and Boreal forest fire emissions on the Arctic atmosphere black carbon (BC) concentration. A one-year time series from March 2008 to March 2009 of levoglucosan has been established at the Zeppelin observatory in the Europ...

The aim of this study was to investigate the effect of seasonal variation on the haematological and biochemical parameters in adult wild Jerboa (Jaculus jaculus) in Saudi Arabia. Blood samples of 40 Jerboa were collected in January and August for analyzing hematological and biochemical parameters. In hematological parameters, haemoglobin, mean corpuscular haemoglobin (MCH), mean corpuscular hae...