It's all about Connections: Evidence on Network Formation We present an economic experiment on network formation, in which subjects can decide to form links to one another. Direct links are costly but being connected is valuable. The gametheoretic basis for our experiment is the model of Bala and Goyal (2000). They distinguish between two scenarios regarding the flow of benefits through a netwo...

INTRODUCTION Electronic controls systems have been used in commercial aviation for more than 40 years. With the introduction of the Concorde, the use of electronic systems (with mechanical backups) to manipulate the hydraulic controls used to fly by wire started the revolution on flight control. Digital systems were first used in the Airbus 310 where digital computers controlled flight control ...

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ABSTRACT Bovine clinical mastitis caused by Staphylococcus spp. is a serious and widespread disease in the world of dairy farming. Antimicrobial therapy fundamental importance prevention treatment infectious mastitis, but indiscriminate use antimicrobials acts as determining factor for spread disease. The present study evaluated resistance profiles 57 isolated from bovine to beta-lactams gentam...

Related individuals share potentially long chromosome segments that trace to a common ancestor. We describe a phasing algorithm (ChromoPhase) that utilizes this characteristic of finite populations to phase large sections of a chromosome. In addition to phasing, our method imputes missing genotypes in individuals genotyped at lower marker density when more densely genotyped relatives are availa...

Advances in high-throughput genotyping technologies have afforded researchers the opportunity to study ever-increasing numbers of SNP in animal genomes. However, many studies encounter difficulties in obtaining sufficient quantities of high-quality DNA for such analyses, particularly when the source biological material is limited or degraded. The recent development of in vitro whole-genome ampl...

It has been recognized recently that human cryptosporidiosis is usually caused by Cryptosporidium parvum genotype I ("human" C. parvum), which is not found in animals. Compared to C. parvum genotype II, little is known of the biology of invasion of the human-restricted C. parvum genotype I. The aims of the present study were (i) to explore and compare with genotype II the pathogenesis of C. par...

background: cryptosporidiosis is one of the most important parasitic infections in human and animals. this study was designed for survey on the prevalence of cryptosporidium infection in farms of ilam, west of iran, using parasitology method and genotyping by nested pcr-rflp. methods : fecal samples of 217 cattle were collected fresh and directly from the rectum of cattle. all of the samples we...

The present study was aimed to examine the association of bovine follicular stimulating hormone gene polymorphism with sperm quality traits including sperm volume (SV), sperm concentration (SPCO), total sperm (TS), fresh sperm motility (FSM), total fresh motile sperm (TFMS), post thaw sperm motility (PTSM), total post thaw motile sperm (TPTMS), number of produced payout (NPP), number of fresh m...