Direct evidence for the enhanced acquisition of phosphorus in the rhizosphere of aquatic plants: A case study on Vallisneria natans

2018 ◽  
Vol 616-617 ◽  
pp. 386-396 ◽  
Author(s):  
Xigang Xing ◽  
Shiming Ding ◽  
Ling Liu ◽  
Musong Chen ◽  
Wenming Yan ◽  
...  
Keyword(s):  
Aquatic Plants ◽  
Direct Evidence ◽  
Vallisneria Natans

Process Tracing in Crisis Decision Making

2021 ◽  
Author(s):  
Derek Beach
Keyword(s):  
Decision Making ◽  
Direct Evidence ◽  
Process Tracing ◽  
Causal Process ◽  
Foreign Policy Analysis ◽  
Case Study Method ◽  
Causal Inferences ◽  
Theoretical Understanding ◽  
Causal Processes

Process tracing is an in-depth case study method that can be used to study how causal processes play out within cases. Given its focus on processes and temporality, process tracing is a useful method for analyzing crisis and crisis decision making in the fields of foreign policy analysis and public policy. As can be seen from its name, process tracing involves theorizing a causal process that is then traced by investigating the observable manifestations of the operation of the process as a whole in the more minimalist variant, or for each of its parts in the more maximalist variant. Minimalist process tracing is typically used early in a research program as a form of plausibility probe to understand what types of processes might be linking a crisis event with particular outcomes like policy change. Maximalist process tracing can then be used once there is preliminary knowledge about processes, and where the goals become gaining a better theoretical understanding of how they operate, and making stronger causal inferences using more direct evidence of their operation.

Conservation strategy for aquatic plants: endangered Ottelia acuminata (Hydrocharitaceae) as a case study

2019 ◽  
Vol 28 (6) ◽  
pp. 1533-1548 ◽  
Author(s):  
Jian-Ling Guo ◽  
Yan-Hong Yu ◽  
Jian-Wen Zhang ◽  
Zhi-Min Li ◽  
Yong-Hong Zhang ◽  
...  
Keyword(s):  
Aquatic Plants ◽  
Conservation Strategy

Direct evidence for the non-additive gelatinization in binary starch blends: A case study on potato starch mixed with rice or maize starches

2015 ◽  
Vol 50 ◽  
pp. 137-144 ◽  
Author(s):  
Jasmien Waterschoot ◽  
Sara V. Gomand ◽  
Jan A. Delcour ◽  
Bart Goderis
Keyword(s):  
Direct Evidence ◽  
Potato Starch ◽  
Starch Blends

Does the IUCN Red-Listing ‘Criteria B’ do justice for smaller aquatic plants? A case study from Sri Lankan Aponogetons

2019 ◽  
Vol 29 (1) ◽  
pp. 115-127
Author(s):  
Chapa G. Manawaduge ◽  
Deepthi Yakandawala ◽  
Kapila Yakandawala
Keyword(s):  
Aquatic Plants ◽  
Sri Lankan ◽  
Red Listing

Nutrient export and material recycling using aquatic plants: Lake Kitagata case study

2012 ◽  
Vol 14 (3) ◽  
pp. 266-273 ◽  
Author(s):  
M. Takashima ◽  
H. Nanbu ◽  
K. Kato ◽  
C. Kataya ◽  
A. Ogawa ◽  
...  
Keyword(s):  
Aquatic Plants ◽  
Nutrient Export ◽  
Material Recycling

scholarly journals Red Sea Entanglement: Initial Latin European Intellectual Development Regarding Nubia and Ethiopia during the Twelfth Century

2021 ◽  
Vol 11 (5) ◽  
Author(s):  
Adam Simmons
Keyword(s):  
Red Sea ◽  
Twelfth Century ◽  
Intellectual Development ◽  
Direct Evidence ◽  
European Engagement ◽  
Intellectual Networks

What happens to the ability to retrace networks when individual agents cannot be named and current archaeology is limited? In these circumstances, such networks cannot be traced, but, as this case study will show, they can be reconstructed and their effects can still be witnessed. This article will highlight how Latin European intellectual development regarding the Christian African kingdoms of Nubia and Ethiopia is due to multiple and far-reaching networks between Latin Europeans, Africans, and other Eastern groups, especially in the wider Red Sea region, despite scant direct evidence for the existence of such extensive intellectual networks. Instead, the absence of direct evidence for Latin European engagement with the Red Sea needs to be situated within the wider development of Latin European understandings of Nubia and Ethiopia throughout the twelfth century as a result of interaction with varied peoples, not least with Africans themselves. The developing Latin European understanding of Nubia is a result of multiple and varied exchanges.

Nutritional composition of aquatic plants and their potential for use as animal feed: A case study of the Lower Volta Basin, Ghana

2018 ◽  
Vol 16 (2) ◽  
pp. 99-112
Author(s):  
WEMEGAH JOSHUA ETSE ◽  
TED Y. ANNANG ◽  
JESSE S. AYIVOR
Keyword(s):  
Aquatic Plants ◽  
Animal Feed ◽  
Standard Procedure ◽  
Sediment Quality ◽  
Nutritional Composition ◽  
Control Site ◽  
Panicum Maximum ◽  
Volta Basin ◽  
Significant Difference

Etse WJ, Annang T, Ayivor JS. 2018. Nutritional composition of aquatic plants and their potential for use as animal feed: a case study of the Lower Volta Basin, Ghana. Biofarmasi J Nat Prod Biochem 9: 99-112. The study was conducted to determine the nutritional composition of selected dominant aquatic plants and their significant effect on the chemical and physical characteristics of the water. Aquatic plants namely Nymphaea lotus, Typha australis, Ipomoea aquatica, and Scirpus cubensis were collected, identified and authenticated at the Ghana Herbarium. The proximate nutritional compositions of these plants were measured using the standard procedure outlined in the Association of Official Analytical Chemist (AOAC 2002). Water and sediment quality analyses of some physicochemical variables were also carried out using processes described in the standard methods for water and wastewater examination. The results showed that nutrient composition such as the crude protein, ether extracts, ash content, and nitrogen-free extracts was significantly higher than the corresponding constituents in Panicum maximum used as a control for the study. The findings also indicated that levels of heavy metals in all plants fell within the WHO/FAO standards for metals in vegetables and food. The effects of the physicochemical parameter of water also revealed that pH, nitrate, turbidity, DO, and BOD levels were found significantly different from the control site. The level of heavy metal in the sediment samples revealed significant variations in the distribution of the metals, with Zn showing the most significant difference and Pb the least with a mean level of 7.5±0.86 mg/L and 0.4±0.03 mg/L respectively. These plant species suggests having a high nutritive potential and indicates their possible use as mixed ingredients in animal feed. Exploitation of these aquatic plants for animal feed would be a step towards better utilization of these plants help in the management of aquatic plants within the basin.

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