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  • Analytical Chemistry and Spectroscopy  (7,463)
  • Iran  (2,806)
  • 2020-2024  (6)
  • 2020-2022  (2,794)
  • 1990-1994  (7,469)
Document type
Keywords
Language
Years
Year
  • 1
    Keywords: Forschungsbericht ; Iran ; Kältetechnik ; Klimatechnik ; Berufliche Fortbildung
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (30 Seiten, 386,00 KB)
    Language: German
    Note: Förderkennzeichen BMBF 01BE17009A , Verbundnummer 01179657 , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
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  • 2
    Keywords: Forschungsbericht ; Gesundheitswesen ; COVID-19 ; Pandemie ; SARS-CoV-2 ; Epidemiologie ; Deutschland ; Iran
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (28 Seiten, 936,53 KB) , Diagramme
    Language: German
    Note: Förderkennzeichen BMBF 01DK20087 , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
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  • 3
    Online Resource
    Online Resource
    Cham : Springer International Publishing | Cham : Imprint: Springer
    Keywords: Geology. ; Tourism. ; Management. ; Geomorphology. ; Environmental geography. ; Geography. ; Ägypten ; Irak ; Iran ; Mittlerer Osten ; Trockengebiet ; Wüste ; Arabien ; Arabische Staaten ; Jordanien ; Palästina ; Geologie ; Geodiversität ; Gazastreifen ; Westjordanland ; Geologische Struktur ; Aufschluss ; Geopark ; Naturdenkmal ; Geologische Stätte ; Historische Geologie ; Morphostruktur ; Geotop ; Geotourismus ; Sehenswürdigkeit
    Description / Table of Contents: Part I. Introduction and setting the scene. Chapter 1. Geotourism – A Global Overview -- Chapter 2. The Geotourism Potential of Sand and Dunes – From Theory To Practice -- Chapter 3. The Significance of Geotourism Through the Lens Of Geoethics -- Chapter 4. Geotourism in The Middle East- An Overview -- Part II. Country case studies -- Chapter 5. Geotourism in Egypt -- Chapter 6. Geotourism in Iran, A Review -- Chapter 7. Residents’ Perceptions of Geotourism in Qeshm Island UNESCO Global Geopark, Iran -- Chapter 8. Geotourism in Iraq – With Reference to Potential Geoheritage and Geoparks -- Chapter 9. Geotourism in Jordan: The Potential for Developing Geotrails in The Wadis -- Chapter 10. Geotourism In The Sultanate Of Oman – With a Focus on Samail Ophiolite Geosites -- Chapter 11. Geotourism in Qatar -- Chapter 12. Geotourism in Yemen -- Chapter 13. Geotourism in Saudi Arabia -- Chapter 14. Geotourism in Türkiye – Cave Assessment Using Geographical Information Systems -- Chapter 15. Geotourism in Palestine -- Chapter 16. Geotourism in the United Arab Emirates -- Part III. Conclusion. Chapter 17. Conclusion - The Future of Geotourism in The Middle East.
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource(XV, 278 p. 240 illus., 232 illus. in color.)
    Edition: 1st ed. 2023.
    ISBN: 9783031241703
    Series Statement: Geoheritage, Geoparks and Geotourism, Conservation and Management Series
    Language: English
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  • 4
    Keywords: Environmental management ; Geographical information systems ; Soil science ; Soil conservation ; Geology ; Hydrogeology ; Geomorphology ; Iran ; Semiarides Gebiet ; Runse ; Rillenspülung ; Fernerkundung ; Indien Ost ; West Bengal ; Trockengebiet ; Bodenerosion ; Geomorphologie ; Tropen ; Degradation ; Geomorphologische Kartierung ; Geoinformationssystem
    Description / Table of Contents: Spatial Extent, Formation Process, Reclaimability Classification System and Restoration Strategies of Gully and Ravine Lands in India -- Soil Disintegration Characteristics on Ephemeral Gully Collapsing in Lateritic Belt of West Bengal, India -- Modeling of Gully Erosion Based on Random Forest Using GIS and R -- Geomorphic Threshold and SCS-CN-Based Runoff and Sediment Yield Modelling in the Gullies of Dwarka–Brahmani Interfluve, West Bengal, India -- Assessing Gully Asymmetry Based on Cross-Sectional Morphology: A Case of Gangani Badland of West Bengal, India -- The Potential Gully Erosion Risk Mapping of River Dulung Basin, West Bengal, India Using AHP Method -- Application of Field-Monitoring Techniques to Determine Soil Loss by Gully Erosion in a Watershed in Deccan, India -- Gully Erosion Susceptibility Mapping Based on Bayesian Weight of Evidence -- Understanding the Morphology and Development of a Rill-Gully: An Empirical Study of Khoai Badland, West Bengal, India -- Estimation of Erosion Susceptibility and Sediment Yield in Ephemeral Channel Using RUSLE and SDR Model: Tropical Plateau Fringe Region, India -- Assessment of Potential Land Degradation in Akarsa Watershed, West Bengal, Using GIS and Multi-influencing Factor Technique -- Using Ground-Based Photogrammetry for Fine-Scale Gully Morphology Studies: Some Examples -- Effects of Grass on Runoff and Gully Bed Erosion: Concentrated Flow Experiment -- Water Flow-Induced Gully Erosion in Himalayan Watershed Cum Plateau and Alluvial Plains -- Influence of Road-Stream Crossing on the Initiation of Gully: Case Study from the Terai Region of Eastern India -- Land Degradation Processes of Silabati River Basin, West Bengal, India: A Physical Perspective -- Assessment of Gully Erosion and Estimation of Sediment Yield in Siddheswari River Basin, Eastern India, Using SWAT Model -- Role of Plant Roots to Control Rill-Gully Erosion: Hydraulic Flume Experiment -- Bamboo-Based Technology for Resource Conservation and Management of Gullied Lands in Central India -- Soil Erosion Protection on Hilly Regions Using Plant Roots: An Experimental Insight -- Planning, Designing and Construction of Series of Check Dams for Soil and Water Conservation in a Micro-watershed of Gujarat, India -- Impacts of Gully Erosion on River Water Quality and Fish Resources: A Case Study -- Gully Erosion in I. R. Iran: Characteristics, Processes, Causes, and Land Use -- Factors Affecting Gully-Head Activity in a Hilly Area Under a Semiarid Climate in Iran -- Topographic Threshold of Gully Erosion in Iran: A Case Study of Fars, Zanjan, Markazi and Golestan Provinces -- A Review on the Gully Erosion and Land Degradation in Iran -- Mapping and Preparing a Susceptibility Map of Gully Erosion Using the MARS Model -- Gully Erosion Susceptibility Assessment Through the SVM Machine Learning Algorithm (SVM-MLA) -- Data Mining Technique (Maximum Entropy Model) for Mapping Gully Erosion Susceptibility in the Gorganrood Watershed, Iran -- Land Degradation and Community Resilience in Rural Mountain Area of Java, Indonesia -- Spatial Analysis and Prediction of Soil Erosion in a Complex Watershed of Cameron Highlands, Malaysia
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (XXII, 480 p. 293 illus., 267 illus. in color)
    Edition: 1st ed. 2020
    ISBN: 9783030232436
    Series Statement: Advances in Science, Technology & Innovation, IEREK Interdisciplinary Series for Sustainable Development
    Language: English
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  • 5
    Online Resource
    Online Resource
    Cham : Springer International Publishing | Cham : Imprint: Springer
    Keywords: Geology. ; Geomorphology. ; Sedimentology. ; Iran ; Zagrosgebirge ; Elbursgebirge ; Ophiolith ; Geologie ; Tektonik ; Iran ; Demawend ; Quartär ; Vulkan ; Ergussgestein ; Hochland von Iran ; Metamorphose ; Metamorphes Gestein ; Magmatisches Gestein ; Magmatismus
    Description / Table of Contents: Geological setting and crustal structure of Iran -- Structural units of Iran -- Faults and Tectonic Phases of Iran -- Magmatic Phases and their Distribution in Iran -- Intrusive Rocks of Iran -- Ophiolite Complexes in Iran -- Metamorphic Rocks of Iran.
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource(XII, 441 p. 134 illus., 96 illus. in color.)
    Edition: 1st ed. 2021.
    ISBN: 9783030711092
    Series Statement: Earth and Environmental Sciences Library
    Language: English
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  • 6
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    In:  http://aquaticcommons.org/id/eprint/4720 | 1256 | 2011-09-29 15:59:01 | 4720 | Freshwater Biological Association
    Publication Date: 2021-07-05
    Description: Widespread pollution by heavy metals generated by various industries has serious adverse effects on human health and the environment. Cadmium is a heavy metal recognised as one of the most hazardous environmental pollutants. It is a non-essential and non-beneficial element to organisms, causing toxicity and other deleterious effects on various components of the aquatic environment. The ability of algal periphyton to concentrate cadmium from fresh water is well known. Moreover, periphyton communities are able to accumulate large amounts of cadmium despite its low concentration in fresh water. Many researchers use algal periphyton as an indicator of water quality in aquatic environments. In the present study, the authors ask two basic questions: Does cadmium accumulate along a food chain consisting of the periphyton community and a grazer species (Physa sp.) under semi-natural conditions provided by artificial streams? If not, which one can better indicate the water quality?
    Keywords: Biology ; Ecology ; Limnology ; Periphyton ; Cadmium ; Rivers ; Experimental research ; Bioaccumulation ; Chemical pollution ; Iran ; Kermanshah
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 15-26
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  • 7
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    Tehran University, Kish International Campus
    In:  http://aquaticcommons.org/id/eprint/21028 | 17408 | 2018-08-20 05:43:30 | 21028 | Tehran University, Kish International Campus, Kish Island, Iran
    Publication Date: 2021-07-13
    Keywords: Biology ; Fisheries ; Cymo andreossyi ; Persian Gulf ; Iran
    Repository Name: AquaDocs
    Type: image
    Format: image/jpeg
    Format: image/jpeg
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  • 8
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    In:  http://aquaticcommons.org/id/eprint/21695 | 18721 | 2017-11-27 11:56:25 | 21695 | University of Guilan, Faculty of Natural Resources, Iran
    Publication Date: 2021-06-28
    Description: Caspian brown trout (Salmo trutta caspius) is one of the economically valuable species in the Caspian Sea.Artificial propagation and production of larvae are the main problems in the early culture of this species.The purpose of this paper is to study the effect of reproductive performance of female broods on opposition reproduction efficiency in Caspian brown trout in the breeding season of 2009. Three groups of female broods (4, 5 and 6 years old) were fertilized with 9 male fish individually. The results showed that,6 year old females have maximum body weight (2150.0 ± 86.6 g), total length (59±2 cm), eggs weight (255.0 ± 30.51 g), egg size (5.37 ± 0.058 mm) and absolute fecundity rate (3060 ± 366.15), while highest average number of ovules in each gram of body weight (16.33 ± 0.58) and relative fecundity (2.08 ± 0.12) belonged to 4 years old females. There were significant differences in mean fertilization rate and survival rate until absorption of yolk sack stage (p〈0.05) among the treatments studied. The present study showed that the eggs produced from fertilization of 6 year old female eggs and male mixed milt showed maximum average fertilization percentage (97.5 %), survival rate until eyed stage (92%), hatching percentage (93%), and survival rate until absorption of yolk sack (94.5%).
    Keywords: Biology ; Fisheries ; age ; reproductive ; performance ; female ; Caspian Sea ; Salmo trutta caspious ; Iran ; larvae ; weight ; male
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 97-103
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  • 9
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    In:  http://aquaticcommons.org/id/eprint/21701 | 18721 | 2017-11-27 12:19:48 | 21701 | University of Guilan, Faculty of Natural Resources, Iran
    Publication Date: 2021-06-28
    Description: Guilan province is located in south and south-west of the Caspian Sea. Guilan is one of the richest and the most humid region in the country due to suitable climate, ample rainfall and many water sources (springs,rivers, creeks,..),. Despite the prevailing favorable conditions, limnological studies, especially in the mountainous regions of this province are limited. A limnological study was conducted in the Lakan area from March to June in 2008. Macrobenthos were sampled from the freshwater stream that were mostly composed of freshwater crabs. The samples were transported to the Natural History Museum in Frankfurt, Germany, and the crab species was identified as Potamon bilobatum belonging to Family Potamidae. The physico-chemical characteristics of water and the study area have been recorded.
    Keywords: Biology ; Fisheries ; first report ; freshwater ; crab ; species ; Potamon bilobatum ; Guilan ; Lakan area ; macrobenthos ; limnological ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 279-283
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  • 10
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    In:  http://aquaticcommons.org/id/eprint/21711 | 18721 | 2017-11-27 14:08:10 | 21711 | University of Guilan, Faculty of Natural Resources, Iran
    Publication Date: 2021-06-29
    Description: This study is an attempt to evaluate the biomonitoring capabilities of rock oyster, Saccostrea cucullata, for mercury (Hg) pollution. The oyster and sediment samples were collected from 10 rocky habitats of Qeshm and Hormoz Islands in the Persian Gulf. The concentration of mercury in the shell and soft tissues of the oysters and sediments were analyzed using an advanced mercury analyzer. Biota-sediment accumulation factor (BSAF) was calculated based on the ratio of Hg concentrations in soft tissues to that in sediments.The results showed that the rate of mercury accumulation in the soft tissues of the oyster was significantly higher than that in its shell (P 〈 0.05). There was a significant correlation between mercury concentrations in the soft tissues and the sediments (r =0.75). According to BSAF, soft tissues of the oyster were recognized as an appropriate indicator for biomonitoring mercury. The present study generally supports the usability of soft tissue of S. cucullata as a sensitive biomonitoring organ to warn mercury pollution in the Persian Gulf.
    Keywords: Biology ; Fisheries ; Pollution ; biomonitoring ; mercury ; Persian Gulf ; rock oyster ; Saccostrea cucullata ; Iran ; pollution ; tissues
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 145-155
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