Urban areas are constantly increasing, which can cause an effect in bird populations since human activities lead to nature alterations. Populations of House Sparrow (Passer domesticus) and Eurasian Tree montanus) have been decreasing Spain according the latest national censuses Spain. In this study, we tried assess population trend over more than two decades using ringing data from Spanish cons...

This review paper reports various concepts of the gun propulsion system to meet the goal of the futuristic hypervelocity projectiles. The nonconventional concepts, such as liquid gun propellant, rail gun, coil gun, electrothermal gun, electrothermal chemical gun along with conventional energetic solid gun propellant have been discussed. Even though muzzle velocity around 2000 m/s has been claim...

One coastal village in Haenam-gun and two in Yeongam-gun, Jeollanam-do were surveyed for intestinal parasite infections by fecal examination. The egg positive rates of Gymnophalloides seoi were high, 24.1% (14/58) in Haenam-gun and 9.3% (11/118) in Yeongam-gun. The egg positive rates of heterophyids, including Heterophyes nocens, and of Clonorchis sinensis were 10.3% and 6.9% in Haenam-gun, and...

Numerous experimental data support the idea that ovarian tissue in mammals secretes androgenic hormone in addition to the female sex hormones.2'4'14 Similar observations have been made on the starling,"5 the night heron,9 and the English sparrow.8' 15 In the case of the sparrow the evidence is based on the observation that the bill of the female darkens appreciably during the breeding season or...

OBJECTIVES To determine the relative incidence of gun victimization versus self defense gun use by civilians in the United States, and the circumstances and probable legality of the self defense uses. METHODS National random digit dial telephone surveys of the adult population were conducted in 1996 and 1999. The Harvard surveys appear unique among private surveys in two respects: asking (1) ...

OBJECTIVES To present the prevalence of gun ownership among batterers and describe their self-reported use of guns to threaten intimate partners. METHODS We used multivariate methods to analyze data from 8529 men enrolled in Massachusetts certified batterer intervention programs between 1999 and 2003. RESULTS Seven percent of the sample reported owning guns during the past 3 years. Recent g...

Available online 7 April 2011 Purposes: To determine if perceived risk of criminal victimization, and past criminal victimization experiences, increases the likelihood of a person owning a gun for self-protection, and to determine if defects in past research concerning the way gun ownership was measured had obscured such effects. Methods: We analyzed data on over 2,500 U.S. adults, using differ...

This study examines the relationship between gun availability and crime in a cross-national sample of cities. Data from the International Crime Victimization Survey are used to examine three competing hypotheses. The results of the limited information maximum least squares regression analyses suggest that gun availability influences rates of assault, gun assault, robbery, and gun robbery. These...