In an accompanying article in this theme issue, Blanchard and Cohen review the evidence on the relationships among negative symptoms and conclude that meaningful subdomains within negative symptoms may exist. Specifically, they suggest that blunted affect and poverty of speech may form one such subdomain, and anhedonia, asociality, and avolition may form another. The authors are appropriately c...

The restructuring of the Chinese electricity sector in 2002 reshaped the market structure by vertically unbundling the dominant integrated firm and started the process of wholesale price liberalization. We estimate factor demands to study whether these reforms boosted productivity in the generation segment of the industry. Controlling explicitly for price-heterogeneity across firms and unobserv...

during 2005, in a faunistic survey of tachinidae associated with pests of field crops which carried out in shirvan region (north khorasan province), 3 adult tachinids emerged from agrotis sp. (lepidoptera: noctuidae) larvae collected in sugar beet field of agricultural college of shirvan. the specimens were identified as gonia ornata meigen 1826. this is the first record of the occurrence of th...

Two species of mutillids, Smicromyrme (Astomyrme) nikolskajae Lelej, 1985 and S. (Eremotilla) tekensis Skorikov, 1935, reared from puparia of ber fruit fly, Carpomya vesuviana Costa, in South Khorasan, Iran are recorded. Both mutillids are newly recorded from Iran. An overview of eight species of mutillids associated with six species of flies is given in the appendix. 

in survey on the abundance and species diversity of arthropods associated with organic and conventional wheat fields which carried out in 2010 and 2011 in mashhad region, a total of 13 species belonging to carabidae family were collected and identified. among the identified species, calosoma auropunctatum dsungaricum gebler (carabinae) and the subspecies poecilus cupreus erythropus dejean (pter...

Vasculitides are a heterogeneous group of more than 20 diseases defined by inflammation and destruction of blood vessels. We aimed to study the demographic characteristics of the primary vasculitides in the North East of Iran. We retrospectively studied the medical records of patients diagnosed with any kind of vasculitis at the Clinic and Department of Rheumatology of the Imam Reza Hospital, M...

1. Vector-borne Diseases Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran 2. Dept. of Parasitology and Mycology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran 3. Dept. of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran 4. Dept. of Virology, School of Public Health, Tehran University of Me...