In this study seven plant species were collected from the forest of Arasbaran located in the northwest of Iran. Sampling was conducted in May and August and roots were used for calculating vesicular arbuscular mycorrhizal colonization percentage during the same period. Fine roots were separated, washed and put in FAA solution as a fixative. Through the time, root colonization of all plant speci...

This paper proposes a novel pixel interval down-sampling network (PID-Net) for dense tiny object (yeast cells) counting tasks with higher accuracy. The PID-Net is an end-to-end convolutional neural (CNN) model encoder–decoder architecture. operations are concatenated max-pooling to combine the sparse and features. addresses limitation of contour conglutination objects while counting. evaluation...

mycorrhizal status of pistachio seedling in kerman province in regard to region and some soil properties and also symbiotic potential of sorghum, clover and onion isolates with pistachio seedling were evaluated in this research. 72 samples of pistachio nurseries and 67 samples of sorghum, clover and onion farms were gathered from kerman province and mycorrhizal colonization percent of their roo...

background: group b streptococcus is regarded as a potential factor for adverse outcomes of pregnancy such as preterm birth. objective: to study the association of maternal vaginal colonization with group b streptococcus (gbs) and preterm labor. materials and methods: from april 2005 to may 2006, vaginal culture for gbs were conducted in 101 laboring women with a gestational age of 24-37 weeks ...

Undernutrition or malnutrition adversely affects host defenses against many invading microorganisms, thereby increasing the severity of infection. Studies of RNA viruses (e.g., coxsackievirus B and influenzavirus) have shown that selenium or vitamin E deficiency in mice increases disease severity and results in stable genomic changes in the virus that increase virulence. Changes in H3N2 influen...

This project focuses on the development of a microorganism concentrator for pathogen detection applications. A common problem in microfluidic systems is the mismatch between the volume of a sample and the volume that a device, such as a detector, can process in a reasonable amount of time. Concentrators can, therefore, be used in pathogen detection and other microfluidics applications to reduce...

The impacts of UV irradiation, gamma irradiation, and a combination of both on Escherichia coli inactivation in primary and secondary wastewater effluents were investigated. UV doses of 35 and 62 J/m(2) were required for a 1-log inactivation of E. coli in the primary and secondary wastewater samples, respectively. A gamma dose of 170 Gy (J/kg) was required for a 1-log inactivation of E. coli in...

In the past, a wide variety of unrelated oral filamentous and rod shaped bacteria were placed either in the genera Leptothrix or Leptotrichia. The confusion resulted from meager studies of many of these organisms, inadequate generic descriptions, and use of the ill-defined word "filamentous." Bergey's Manual of Determinative Bacteriology in 1948 stated, "the genus Leptotrichia Trevisan, 1879 is...