scholarly journals Exclusion of grass roots from soil organic layers by Calluna: the role of ericoid mycorrhizas

2000 ◽  
Vol 51 (347) ◽  
pp. 1117-1125 ◽  
Author(s):  
D. R. Genney
Keyword(s):  
Organic Layers ◽  
Grass Roots ◽  
Ericoid Mycorrhizas

scholarly journals Occurrence of drug target residues within decantation tank sediments: a good clue to assess their historical excretion?

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Thomas Thiebault ◽  
Laëtitia Fougère ◽  
Anaëlle Simonneau ◽  
Emilie Destandau ◽  
Claude Le Milbeau ◽  
...  
Keyword(s):  
Drug Target ◽  
Chemical Properties ◽  
Deposition Process ◽  
Drug Consumption ◽  
Organic Layers ◽  
Sewer Systems ◽  
Physico Chemical ◽  
Deep Underground ◽  
Deposition Processes

AbstractThis study investigated the potential of sediments accumulated in sewer systems to record human activities through the occurrence of drug target residues (DTR). The installation studied is 17 m deep underground decantation tank that traps the coarse fractions of a unitary sewer system (northern part of Orléans, France), collecting both stormwater and wastewater. The sediments deposited in this tank could constitute a nonesuch opportunity to study the historical evolution of illicit and licit drug consumption in the catchment, however, the deposition processes and the record of DTRs remain largely unknown at present. Five cores were acquired from 2015 to 2017. One hundred fifty-two sediment samples were extracted using a mixture of ultra-pure water:methanol (1:1) prior to analysis of the extracts by high-pressure liquid chromatography coupled to tandem mass spectrometry. Several classical sedimentological analyses such as total organic carbon, facies description and granulometry were also performed on these samples, in order to understand the most important factors (e.g., physico-chemical properties of the DTRs, solid type, assumed load in wastewater) impacting their deposition.The key role of the speciation of DTRs was highlighted by the higher contents in neutral and anionic DTRs in organic layers, whereas only cationic DTRs were found in mineral layers. The considerable modifications in the sediments’ properties, generated by distinct origins (i.e., stormwater or wastewater), are therefore the most important drivers that must be taken into account when back-calculating the historical patterns of drug consumption from their DTR concentrations in decantation tank sediments. Further research remains necessary to fully understand the deposition process, but this study provides new clues explaining these temporal evolutions.

What Gender is the Consumer?: The Role of Gender Connotations in Defining the Political

1999 ◽  
Vol 33 (1) ◽  
pp. 19-44 ◽  
Author(s):  
KATHLEEN G. DONOHUE
Keyword(s):  
Government Regulation ◽  
Economic Thought ◽  
Civic Identity ◽  
The Political ◽  
Good Society ◽  
Consumer Activism ◽  
Grass Roots ◽  
Political Economic

The 1890s and the 1930s were periods of intense consumer activism during which organized consumers pressured government to regulate business on behalf of the consuming public. In both periods, however, the heightened awareness of the consumer had an impact that extended beyond the realm of grass-roots activism or government regulation. One of the areas profoundly affected by this heightened awareness was political–economic thought. In both periods, political–economic theorists turned their attention to the consumer, debating such issues as whether humans were fundamentally producers or consumers, whether civic identity should be rooted in the consumer or the producer identity, and whether the “good society” was one based on “producerist” or “consumerist” values.

scholarly journals A ‘model of reconciliation’? Fifty years of German–Israeli relations

2018 ◽  
Vol 53 (4) ◽  
pp. 507-527 ◽  
Author(s):  
Ruth Wittlinger
Keyword(s):  
Collective Memory ◽  
Transitional Justice ◽  
West Germany ◽  
Academic Literature ◽  
Grass Roots ◽  
Memory Culture ◽  
Long Time ◽  
Micro Level ◽  
Key Aspects

This article argues that German–Israeli reconciliation after 1945 has not been as exemplary as is often suggested. Drawing on key aspects which emerge from a discussion of relevant concepts in the first part of the article – transitional justice and reconciliation – it will show that Germany’s memory culture, as evidenced in the elite discourse, has indeed developed in a way that points to a successful reconciliation between the two countries. On the other hand, however, German regret emerged only reluctantly, was by and large confined to West Germany, and took a long time to establish itself formally, with emphasis on German suffering rather than suffering caused by Germans always playing an important role in German collective memory after 1945. It will also show that at grass-roots level, reconciliation between Germany and Israel is far from unproblematic. Apart from providing a critical assessment of the reconciliation between Germany and Israel after 1945, the article contributes to current academic literature on transitional justice, reconciliation and the role of memory which suggests that even though commemoration and micro-level reconciliation might be important, the geopolitical context in which reconciliation takes place and strategic security considerations also play a significant role.

The reduction of organic-layer depth by wildfire in the North American boreal forest and its effect on tree recruitment by seed

2007 ◽  
Vol 37 (6) ◽  
pp. 1012-1023 ◽  
Author(s):  
David F. Greene ◽  
S. Ellen Macdonald ◽  
Sybille Haeussler ◽  
Susy Domenicano ◽  
Josée Noël ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Inverse Function ◽  
Organic Layer ◽  
Layer Depth ◽  
Tree Recruitment ◽  
Organic Layers ◽  
Boreal Region ◽  
The North ◽  
Forest Species Composition

We compared prefire and postfire organic-layer depths in boreal forest types (14 fires) across Canada, and examined tree recruitment as a function of depth. There was extensive within-stand variation in depth, much of it due to clustering of thinner organic layers around boles. There were no significant differences in postfire organic-layer depth among sites with different prefire forest species composition, but sites in the eastern boreal region had thicker postfire organic layers than those in the western boreal region. Mean organic-layer depth was much greater in intact stands than after fires; overall, fire reduced organic-layer depth by 60%, largely because of increases in the area of thin (<3 cm) organic layers (1% in intact stands vs. 40% in postfire stands). There was more variation in organic-layer depth within postfire than within prefire stands; notably, some areas in postfire stands were deeply combusted, while adjacent parts were only lightly combusted. We speculate that the diminished role of energy loss to latent heat around tree boles increased organic-layer consumption around tree boles. Seedlings were clustered around burned tree bases, where organic layers were thinner, and the dependence of a species on thin organic layers was an inverse function of seed size.

Religion and Social Change at the Grass Roots in Latin America

1997 ◽  
Vol 554 (1) ◽  
pp. 81-103 ◽  
Author(s):  
J. SAMUEL ESCOBAR
Keyword(s):  
Latin America ◽  
Social Change ◽  
Religious Commitment ◽  
Colonial Period ◽  
Social Mobilization ◽  
Grass Roots ◽  
Key Factor ◽  
Revolutionary Movements ◽  
Role Of Religion

Recent historiography and social studies in Latin America have developed new approaches to understanding the significance of movements by the poor for social change as well as the role of religion as a key factor for social mobilization. It is now possible to perceive the importance of messianic and revolutionary movements since the colonial period, and also the different forms of religious commitment that motivate people to reject modernization or to accept it. Several case studies coming from Catholicism and Protestantism are considered here.

Subcontracted racial capitalism: the interrelationship of race and production in meat processing plants

2021 ◽  
Vol 1 (1) ◽  
pp. 33-53
Author(s):  
Valeria Piro ◽  
Devi Sacchetto
Keyword(s):  
Migrant Workers ◽  
Industrial Relations ◽  
Meat Industry ◽  
Meat Processing ◽  
Racial Capitalism ◽  
Grass Roots ◽  
Qualitative Empirical Research ◽  
Race And Racialization ◽  
Processing Plants

The aim of this paper is to extend discussion on subcontracted labour by focussing on the labour process and on the role of race and racialization within it. The existing literature has so far analysed the factors that have encouraged employer decisions to outsource labour, together with its effects on labour conditions and on industrial relations. Missing, however, has been any detailed analysis of the role of race and racialization processes, pivotal elements in the facilitation of subcontracting thereby accelerating the worsening of labour conditions.Based on qualitative empirical research on the meat industry in Northern Italy, this article highlights how the processes of outsourcing and racialization intersect to support the segmentation of labour within the workplace. In particular, we argue that, through contracting out work to racialized groups of migrant workers, outsourcing has been both facilitated and legitimized. Furthermore, the presence of in-plant contractors has fostered the implementation of racializing practices, which in turn have bolstered workforce fragmentation on racial lines.Notwithstanding this, our findings show that race can be a factor in the mobilization of subcontracted migrant labour through the production of pragmatic (racial) solidarities. These informal ties are a key component in the development of the everyday struggles and alliances that emerge within grass roots worker organisations as well as beyond their boundaries through hybrid forms of collective organisation.

HERBAGE COMPOSITION WITH REGULAR APPLICATION OF FERTILIZERS

2020 ◽  
Author(s):  
Dalhat Teberdiev ◽  
Anna Rodionova ◽  
Sergey Zapivalov
Keyword(s):  
Low Doses ◽  
Podzolic Soils ◽  
Grass Roots

The role of the level of intensification on the composition of the herbage in the long-term research of the Institute is determined. Based on the analysis of the results of long-term use of herbage on sod-podzolic soils under different conditions of the nutritional regime, the regularity of the formation of various types of herbage is established. In the absence of top-dressing and when using low doses of fertilizers, pasture-type herbage is formed with the predominance of grass-roots types of grasses. Highly productive grass of the haymaking type is preserved against the background of the use of a complex of fertilizers with a nitrogen dose of more than 90 kg/ha.

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