Search results for " strategic"
showing 10 items of 440 documents
Competitive arsenate and phosphate adsorption on α-FeOOH, LaOOH, and nano-TiO2: Two-dimensional correlation spectroscopy study
2021
Abstract Competitive adsorption of arsenate (AsO43−) and phosphate (PO43−) on α-FeOOH, LaOOH, and nano-TiO2 was studied using batch adsorption experiments and in-situ flow cell ATR-FTIR coupled with two-dimensional correlation spectroscopy (2D-COS) for the first time. With a higher temporal resolution, our results found a highly dynamic adsorption sequence for AsO43− and PO43−. When AsO43− and PO43− were simultaneously exposed to the adsorbents at the same concentrations, AsO43− was preferentially adsorbed by α-FeOOH and TiO2, but PO43− adsorption was dominant on LaOOH. The results implied that the PO43− adsorbed on LaOOH had to be remobilized to allow for AsO43− adsorption, but that PO43− …
A new foam-based method for the (bio)degradation of hydrocarbons in contaminated vadose zone
2020
International audience; An innovative foam-based method for Fenton reagents (FR) and bacteria delivery was assessed for the in situ remediation of a petroleum hydrocarbon-contaminated unsaturated zone. The surfactant foam was first injected, then reagent solutions were delivered and propagated through the network of foam lamellae with a piston-like effect. Bench-scale experiments demonstrated the feasibility of the various treatments with hydrocarbon (HC) removal efficiencies as high as 96 %. Compared to the direct injection of FR solutions, the foam-based method led to larger radii of influence and more isotropic reagents delivery, whereas it did not show any detrimental effect regarding H…
Melatonin alleviates Ochratoxin A-induced liver inflammation involved intestinal microbiota homeostasis and microbiota-independent manner.
2021
Melatonin (MEL) shows an anti-inflammatory effect and regulates intestinal microbiota communities in animals and humans; Ochratoxin A (OTA) induces liver inflammation through intestinal microbiota. However, it remains to know whether MEL alleviates the liver inflammation induced by OTA. In this study, MEL reversed various adverse effects induced by OTA. MEL recovered the swarming and motility of intestinal microbiota, decreased the accumulation of lipopolysaccharide (LPS), enhanced the tight junction proteins of jejunum and cecum segments; ultimately alleviated OTA-induced liver inflammation in ducks. However, it is worth noting that MEL still had positive effects on the OTA-exposed ducks a…
Enhanced remedial reagents delivery in unsaturated anisotropic soils using surfactant foam
2018
Abstract Homogeneous delivery of solution of oxidant in unsaturated soils is limited by soil anisotropy and gravity. An innovative injection strategy using foam was developed to improve in situ delivery. Primary foam injection before oxidant solution enhanced both the lateral and uniform delivery of reactant in isotropic and anisotropic (permeability, contamination) soils. The oxidant spread isotropically through the foam water network. This sequential injection heavily improved the delivery radius of influence (ROI), while limiting contact between surfactant and solution of oxidant in order to preserve the selective oxidation of petroleum hydrocarbons contaminant (TPH). Prior foam injectio…
Sequential biological and photocatalysis based treatments for shipboard slop purification: A pilot plant investigation
2019
This study investigated the treatment of a shipboard slop containing commercial gasoline in a pilot plant scale consisting of a membrane biological reactor (MBR) and photocatalytic reactor (PCR) acting in series. The MBR contributed for approximately 70% to the overall slop purification. More precisely, the biological process was able to remove approximately 40%, on average, of the organic pollution in the slop. Nevertheless, the membrane was capable to retain a large amount of organic molecules within the system, amounting for a further 30% of the influent total organic content removal. However, this affected the membrane fouling, thus resulting in the increase of the pore blocking mechani…
Does Culture Matter? : Measuring Cross-Country Perceptions of CSR Communication Campaigns about COVID-19
2022
The COVID-19 pandemic has brought several challenges to businesses and societies. In response, many corporations have supported local communities and authorities in the management of the pandemic. Although these initiatives, which can be considered forms of corporate social responsibility (CSR), were highly coupled with explicit CSR communication campaigns, little is known about whether these campaigns were effective. Previous research indicates that culture can shape people’s perceptions of CSR initiatives and communications, suggesting that businesses pay attention to careful consideration of cultural norms for effective CSR communication. However, the COVID-19 pandemic as a new CSR setti…
Politics of Mobility and Stability in Authorizing European Heritage : Estonia’s Great Guild Hall
2019
AbstractKaasik-Krogerus scrutinizes the European Heritage Label (EHL) as an authorized heritage discourse (AHD) in the making. She analyses how the discourse is formed in a politics of mobility and stability between the local, national, and European scales resulting from the interplay of europeanization (of the national and local) and domestication (of the European). The chapter asks how this politics of mobility and stability is conducted to manage the scalar dissonance in one of the sites, the Great Guild Hall in Tallinn, Estonia. Kaasik-Krogerus argues that the politics conducted in the exhibitions works in two controversial ways: legitimizing mobility and stability as natural and simult…
Not Worth the Net Worth? The Democratic Dilemmas of Privileged Access to Information
2017
In this article, we discuss the democratic conditions for parliamentary oversight in EU foreign affairs. Our point of departure is two Interinstitutional Agreements (IIAs) between the Council and the European Parliament (EP), which provide the latter with access to sensitive documents. To shed light on this issue, we ask to what extent these contribute to the democratic accountability in EU foreign policy? It is argued that the IIAs have strengthened the EP’s role in EU foreign affairs by giving it access to information to which it was previously denied. This does not mean, however, that this increase in power equals a strengthening of the EP as a democratic accountability forum. First of a…
Disrupting resilient criminal networks through data analysis: The case of Sicilian Mafia
2020
Compared to other types of social networks, criminal networks present hard challenges, due to their strong resilience to disruption, which poses severe hurdles to law-enforcement agencies. Herein, we borrow methods and tools from Social Network Analysis to (i) unveil the structure of Sicilian Mafia gangs, based on two real-world datasets, and (ii) gain insights as to how to efficiently disrupt them. Mafia networks have peculiar features, due to the links distribution and strength, which makes them very different from other social networks, and extremely robust to exogenous perturbations. Analysts are also faced with the difficulty in collecting reliable datasets that accurately describe the…
Protocolo Familiar: sus resultados
2006
L'obiettivo di questo libro è di riferire circa i principali risultati conseguiti da "protocolli familiari". Dopo una breve rassegna della letteratura sugli strumenti di pianificazione strategica nel contesto delle aziende familiari e sull'evoluzione del concetto di protocollo familiare, vengono presentati i risultati di una ricerca condotta in Spagna su un campione di cinquanta imprese familiari estratte fra le circa novanta che hanno redatto un protocollo familiare avvalendosi dell'assistenza professionale di persone direttamente coinvolte nella Cattedra di Family Business dello IESE. Obiettivo della ricerca è di identificare i risultati - positivi o negativi, duraturi o passeggeri - dire…