scholarly journals Habitat requirements of Polygonetum natantis Soó 1927 and Potamogetonetum natantis Soó 1927 phytocenoses in north-eastern Poland

2014 ◽  
Vol 55 (1) ◽  
pp. 141-157 ◽  
Author(s):  
Stanisław Kłosowski ◽  
Henryk Tomaszewicz
Keyword(s):  
Plant Communities ◽  
Aquatic Plant ◽  
Chemical Properties ◽  
Habitat Requirements ◽  
Physical And Chemical Properties ◽  
Habitat Conditions ◽  
North Eastern ◽  
Physical And Chemical ◽  
And Chemical Properties

Comparison of habitats of <em>Polygonetum natantis</em> Soó 1927 and <em>Potamogetonetum natantis</em> Soó 1927 phytocenoses as regards physical and chemical properties of the water and substrate demonstrated that the habitat requirements of both these communities are different. <em>Polygonetum natantis</em> phytocenoses indicate a substrate poor in nutrient components and rich waters, whereas <em>Potamogetonetum natantis</em> patches, on the contrary, are evidence of fertile substrate and waters poor in biophilous components. The differences in habitat conditions demonstrated between the examined communities confirm the correctness of narrow classification of aquatic plant communities, based on floristic dominance.

scholarly journals A potential antiviral and food-derived healthy ingredient: Resveratrol

2021 ◽  
Vol 7 (1) ◽  
pp. 54-63
Author(s):  
Ayla Arslaner ◽  
Zehra Türkoğlu
Keyword(s):  
Carbon Number ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Food Ingredient ◽  
Beneficial Effects ◽  
Antiviral Effects ◽  
Natural Polyphenol ◽  
Physical And Chemical ◽  
And Chemical Properties

Polyphenols are the secondary metabolites of plants and has an important role in human nutrition as the leading antioxidants. According to the carbon number-based classification of polyphenols, resveratrol is a natural polyphenol in the stilbene group with antioxidant and anticarcinogenic effects. Its beneficial effects on cardiovascular diseases have also been reported. It was first identified in 1940 and has recently gained importance especially in medicine and pharmacy. Researchers have carried out various studies on resveratrol and its time-honored use in traditional eastern medicine has been reported. Resveratrol is a food ingredient that has the potential to be used in the treatment of various diseases, but also has antiviral effects. The study focuses on resveratrol’s physical and chemical properties, effects on health, antiviral effects and use in foods as a functional component.

scholarly journals Improve the physical and chemical properties of camel's hair fiber in Afif province: تحسين الخصائص الفيزيائية والكيميائية لشعيرات وبر الإبل بمحافظة عفيف

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Leila Mahmoud Mokhtar, Enas Ibrahim Moussa
Keyword(s):  
Acetic Acid ◽  
Protein Content ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Textile Materials ◽  
Hair Fiber ◽  
German System ◽  
Physical And Chemical ◽  
And Chemical Properties

    The study aimed to draw attention to the camel's hair available in Afif province and to give information about their physical and chemical properties, and improve their properties. The researchers' collected 50 samples of camel's hair, analyze, and then add improvement material. The study concluded that the Afif Province camel's hair have properties that can converted into textile materials. The softness are from 24.5 to 29 μ, (B and C1) according to the classification of the German system GER, and between 58 S And 60 S according to the classification of (USA, AUS, GRB). The thickness between 5.3 - 12 cn/ tex. The length between (3.8 - 25.5 cm), and the colors of camels hair (Brown, light brown, light creamy, dark creamy). The chemical properties were similar to the global chemical properties of wool, Absorption of moisture from 0.10% to 0.26%, the protein content from 52% to 95%, and its capable temperature to 140 °C without occur softness or fusion, and after 140 degree centigrade the decomposition occurs. Characteristics of the camel's hair can improve by adding some chemicals, such as acetic acid to improve the softness without affecting the durability, or by mixed with other fiber.    

scholarly journals Changes of plant cover of the raised peat-bog Baligówka under the influence of human activity

2016 ◽  
Vol 27 (4) ◽  
pp. 7-11
Author(s):  
Magdalena Malec ◽  
Sławomir Klatka ◽  
Marek Ryczek ◽  
Edyta Kruk
Keyword(s):  
Species Composition ◽  
Plant Communities ◽  
Groundwater Level ◽  
Plant Cover ◽  
Chemical Properties ◽  
Peat Bog ◽  
Physical And Chemical Properties ◽  
Peat Formation ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract The main purpose of the work was to determine the scope and degree of the influence of exploitation on changes of plant cover of the raised peat-bog Baligówka, located in the Orawsko- Nowotarska Valley. The analysis was carried out based on 47 phytosociological surveys using the Braun-Blanquet method. Results of investigations allow to state that excessive drying and fires that took place on the examined object caused wastage of many precious species of plants, especially from the Oxycocco- Sphagnetea class. Their place occupied species belonging to other classes, such as Nardo-Callunetea and Molinio-Arrhenatheretea. The basic cause of drying of the peat-bog and, in consequence, dying of peat formation species is intensified exploitation and connected with this drainage, carried out in the half of the 20th century. Unfortunately, local people up to now illegally have harvested the peat on the investigated object. Decrease in groundwater level leads to accelerated decay of peat, changes in physical and chemical properties of a substratum and, in consequence, changes in trophic values of habitat, what causes great changes in species composition of plant communities.

A soil toposequence on bunya phyllite in Brisbane

Soil Research ◽  
1981 ◽  
Vol 19 (1) ◽  
pp. 1
Author(s):  
AJ Koppi
Keyword(s):  
Chemical Properties ◽  
Parent Material ◽  
Physical And Chemical Properties ◽  
Genetic Unit ◽  
Dioctahedral Mica ◽  
Physical And Chemical ◽  
In Situ Weathering ◽  
And Chemical Properties

A common toposequence on Bunya Phyllite in south-east Queensland was studied in detail at a representative site. Four sample profiles on the slope are described, and some physical and chemical properties are given. The clay minerals, derived from the weathering of the quartz-sericite-chlorite phyllite, comprise dioctahedral mica, dioctahedral vermiculite, an interstratification of these minerals, and kaolin. Properties are related to the slope; and the clay-rich horizon of the middle and lower slopes is considered to be formed mostly by in situ weathering. The classification of the genetic unit given by the slope and parent material is discussed.

C13 NMR Spectrum Analysis of Perfluoro Polyethers (PFPE) of Fluorocarbon-Based Magnetic Fluid’s Base Liquid

2011 ◽  
Vol 142 ◽  
pp. 120-124
Author(s):  
Hong Chao Cui ◽  
De Cai Li ◽  
Peng Liu
Keyword(s):  
Spectrum Analysis ◽  
Functional Group ◽  
Chemical Properties ◽  
Magnetic Fluids ◽  
Physical And Chemical Properties ◽  
Nmr Spectrum ◽  
Physical And Chemical ◽  
Base Liquid ◽  
And Chemical Properties

The physical and chemical properties of nanofluorocarbon-based magnetic fluids are deeply affected by the introduction of fluorinated base liquid. In this paper, firstly we introduce the concept, composition and classification of nanofluorocarbon-based magnetic fluids, then we discuss the properties, preparation and structure of perfluoro polyethers (PFPE); afterwards we analyze the NMR spectrum to infer the structure contained in the polymer in detail and systematically, further verify the functional group of PFPE.

scholarly journals Characterization and classification of soils of Northern hills Zone of Chhattisgarh, Madhya Pradesh

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 147-149
Author(s):  
P.N. Tripathi ◽  
U.S. Mishra ◽  
Pawan Sirothia ◽  
R.P. Singh
Keyword(s):  
Cation Exchange Capacity ◽  
Chemical Properties ◽  
Clay Content ◽  
Exchange Capacity ◽  
Organic Carbon Content ◽  
Physical And Chemical Properties ◽  
Clay Loam ◽  
Physical And Chemical ◽  
And Chemical Properties

Three representative soil pedonsof northern hills of Chhattisgarh, M.P were morphologically studied, characterized and classified. The soils are very deep, colour ranges from brown (10YR5/3) to dark brown (10YR3/3) and very dark greyish brown (10YR3/2) in different horizons. Fe and calcretes are observed in sub surface horizons. The texture in surface soils varied from clay loam to clay while in pedon 2, the texture was observed sandy clay loam throughout the profile. The soils are calcareous and pH ranged from 7.0 to 7.5. The organic carbon content in these soils were (4.4 g kg-1), low to medium (6.1 g kg-1) in surface and decreased with depth. Cation exchange capacity (CEC) were found high in horizons where clay content was more. Based on morphological, physical and chemical properties P1 and P3 were classified as VerticHaplustalfs and pedon (P2) was placed under Typic Haplustepts.

scholarly journals Sivas-Kurugöl Su Kalite Parametrelerinin Belirlenmesi

2013 ◽  
Vol 1 (1) ◽  
pp. 37 ◽  
Author(s):  
Ekrem Mutlu ◽  
Tuğba Demir ◽  
Banu Kutlu ◽  
Telat Yanık
Keyword(s):  
Water Quality ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Pollution Levels ◽  
Water Classification ◽  
And Control ◽  
Physical And Chemical ◽  
The Town ◽  
And Chemical Properties

Kurugöl Lake; Sivas province Hafik county Kurugöl village located within the boundaries of Sivas province, 54 km, Hafik the town 24 miles away, an area of 8.9 ha altitude of 1362 m, an average depth of 3.4 - 4 m with gypsum plateau on the bottom of the boiling water along with rainfall and snowmelt with the lake is fed naturally. Kurugöl (Hafik - Sivas) waters of Lake of the physical and chemical properties during the year changes occurring determining water quality characteristics to reveal the pollution levels are determined, living life in terms of the availability of the detection, water pollution and control regulations by the lake water classification and fishing activities, compliance with were identified. The inland lake in Kurugöl (SKKY) according to the classification of water resources in accordance with the parameters measured I-III water quality varies from class.

Sign in / Sign up

Export Citation Format

Share Document