Objective: In this study carried out in Büyükçekmece Reservoir, the composition, distribution, seasonal changes of epiphytic diatoms that live on surfaces plants, and effects environmental parameters these organisms were investigated, it was aimed to reveal water quality reservoir. Materials Methods: order determine diatom species material samples collected from five stations 2019. study, tempe...

Abstract The present paper seeks to study the diversity and ant community composition of some Algerian islands. This is considered as first exhaustive survey species islands since 1957. was carried out in spring summer seasons between April July two years 2014 2015. Vegetation richness, island area, mainland distance, elevation variables were measured for each island. Relative abundance (RA), f...

The objective of this paper is to examine the crucial area of co-ordination in multi-agent systems. It does not attempt to provide a comprehensive overview of the co-ordination literature; rather, it highlights the necessity for co-ordination in agent systems and overviews briefly various co-ordination techniques. It critiques these techniques and presents some conclusions and challenges drawn ...

Woody plant encroachment into grasslands has been globally widespread. The woody species invading grasslands represent a variety of contrasting plant functional groups and growth forms. Are some woody plant functional types (PFTs) better suited to invade grasslands than others? To what extent do local patterns of distribution and abundance of woody PFTs invading grasslands reflect intrinsic top...

In the present study, we investigated different ecological characteristics of native and non-native demersal fish collected in 2014–2015 on shelf Antalya Gulf Eastern Mediterranean Sea. Lessepsian migrants originating from Indo-Pacific Ocean were classified as non-indigenous species (NIS) other species, which mostly Atlanto-Mediterranean, indigenous (IS). The results showed that faunistic IS NI...

objective(s): this study aimed to compare the diagnostic values of 11c-choline and 18f-fluorodeoxyglucose (18f-fdg) positron emission tomography/computed tomography (pet/ct) in patients with cholangiocarcinoma (cca). methods: this prospective study was conducted on 10 patients (6 males and 4 females), aged 42-69 years, suspected of having cca based on ct or magnetic resonance imaging (mri) resu...

BACKGROUND The early occurrence regional nodal and distant metastases cholangiocarcinoma (CCA) is one of the major reasons for its poor prognosis. However, the related mechanisms are largely elusive. Recently, increasing evidences indicate that adipocytes might be involved in the proliferation, homing, migration and invasion of several malignancies. In the present study, we attempt to determine...

Relationships between distribution of periphytic diatoms and environmental variables in 19 rivers of the Lake Ladoga basin (Northwestern Russia) were examined using gradient analysis. On the basis of geology and river water chemistry, the Lake Ladoga basin could be separated into twomain parts, the northern and the southern sub-basin. The rivers in the northern sub-basin are slightly acidic and...