Search results for " Monitoring"
showing 10 items of 3129 documents
Sorption of uranium(VI) onto ferric oxides in sulfate-rich acid waters.
2003
The mechanisms of the uranium(VI) sorption on schwertmannite and goethite in acid sulfate-rich solutions were studied by Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy. The samples were prepared under N2 atmosphere and initial uranium(VI) concentrations of 1 x 10(-5) (pH 6.5) to 5 x 10(-5) M (pH 4.2). The ionic strength was adjusted using 0.01 M Na2SO4 or 0.01 M NaClO4, respectively. The EXAFS structural parameters for uranium(VI) sorbed on goethite in sulfate-rich, acid and near-neutral solutions indicate that uranium(VI) forms an inner-sphere, mononuclear, bidentate surface complex. This complex is characterized by a uranium-ferric-iron distance of approximately 3.45 A. Ura…
A discourse on human hair fibers and reflections on the conservation of drug molecules
1996
A gross discourse on human hair fibers and their formation is presented stressing the various interdisciplinary aspects, such as the morphological, biological, structural and biochemical data considered to be important in the field of hair analysis. An attempt is made to explain the incorporation of drug molecules during hair fiber formation by using the classical concepts of drug absorption based on lipoid theory and the pH-partition hypothesis as well as a modern biological approach on the permeability of cell membranes. In addition to the physiochemical considerations of the transport properties of a particular drug molecule such as a) the lipophilicity, which determines permeability thr…
Corporate social irresponsibility: What we know and what we need to know
2022
Corporate social irresponsibility (CSI) is a critical issue for managers and researchers. In fact, the number of studies on this subject from diverse literature is rapidly increasing, seeking to answer questions regarding the core elements of CSI, its antecedents, and consequences. This paper offers a comprehensive literature review of this topic, identifying and assessing previous studies, synthesizing their findings, and highlighting knowledge gaps. Additionally, it offers recommendations regarding how to move forward. Our review identified 155 studies published from 1962 to 2020 that describe the antecedents, outcomes, mediators, and moderators of CSI according to different levels of ana…
Appropriate technology in a Solovian nonlinear growth model
2007
We propose a Solovian growth model with a convex-concave production function and international technological spillovers. We test the empirical implications of the model, analysing the effects of the productivity slowdown that followed the oil shocks of the 1970s. We argue that this slowdown, altering the world income distribution, affected the pattern of international technological spillovers, taking the poorest countries further away from the technological leaders, and therefore unable to exploit their technologies. The result is the emergence of a poverty trap for low-income countries.
La Sindrome Compartimentale Addominale (ACS) dopo chirurgia dell'Aneurisma dell'Aorta Addominale (AAA)
2009
Introduction: The Abdominal Compartment Syndrome (ACS) is a “condition in which increased tissue pressure in a confined anatomic space, causes decreased blood flow leading to ischaemia and dysfunction and may lead to permanent impairment of function” Materials and Methods: between june 2007 and june 2008 we treated surgically 23 cases of AAA (14 in election and 9 in emergency), with indirect intra-abdominal pressure (IAP) monitoring (intra-vescical catheter). Mean age was 68 (64-84) years. Mean transverse diameter was 6,2 cm (min 5,5 e max 9,0). Rise in IAP more then 20 mmHg was considered for surgical decompression. In 1 case we registered preoperatively IAP more than 20 mmHg treated with …
Building sustainable contextual ambidexterity through routines: a case study from information technology firms
2020
The purpose of this paper is to explain the role that routines play in achieving sustainable organisational ambidexterity in information technology (IT) firms. Our exploratory analysis of four case studies reveals the key importance of routines in setting the context for sustainable ambidexterity. Companies build up contextual ambidexterity through routines derived from normalization of processes, normalization of skills, and normalization of results. The findings of the study show that routines support IT professionals to decide whether to exploit or explore in each particular case. Firstly, the enabling character of explicit routines as a result of the normalisation of work processes and …
Automated water quality monitoring of humic lakes by using the optical properties of water
2016
Automated water quality monitoring (AWQM) is becoming increasingly common in lakes worldwide. The history of AWQM is relatively short and standard calibration procedures for the measured variables are largely yet to be established. The use of optical AWQM sensors, developed in oceanic environments, raises new questions on the diverse effects which humic compounds may have on the automated optical measurements in inlands waters. The focus of this thesis was to characterize the effects of coloured dissolved organic matter (CDOM) on optical in situ measurements of organic matter (OM) and chlorophyll (Chl) in lakes with varying humic content, and to use AWQM data as a part of traditional monito…
Crisis response strategies in Finland and Spain
2017
Crises are common in today's unpredictable environment rising the importance of crisis response strategies. Two societies in Europe are chosen: Finland, where trust in society is generalized to institutions, and Spain, where trust in society remains on the level of individuals. Using the results of the European Communication Monitor 2013 survey on crisis communication, we explored three hypotheses: “certain types of crises are often met with certain types of strategies,” “cultural context makes some crises more likely than others,” and “cultural context makes some response strategies more likely than others.” We find evidence for all three hypotheses and discuss our findings about perceived…
Crisis communication and terrorism: Mapping challenges and co-creating solutions
2017
Terrorism is a globally connected, uncontrollable, transboundary risk that continually evolves and changes forms, resulting in multiple complexities that affect the lives of both citizens and organisations across the globe. These risks involve a high level of complexity when they materialise as crises, and the use of CBRN (chemical biological, radiological or nuclear) materials presents the possibility of a worst-case scenario. Crisis communication in such cases would not only be essential but also a matter of life and death. Hence, the purpose of this research was to better understand and describe the challenges of communication in CBRN terrorism crises as well as how these challenges can …
Implications of fisheries‐induced evolution for population recovery: Refocusing the science and refining its communication
2019
The argument that sufficiently high fishing mortality (selective or not) can effect genetic change in fished populations has gained considerable traction since the late 1970s. The intervening decades have provided compelling experimental and model‐based evidence that fisheries‐induced evolution (FIE) can cause genetic changes in life history, behaviour and body shape, given sufficiently high trait heritability, selection intensity and time. Fisheries‐induced evolution research has also identified or inferred negative implications to population recovery and sustainable yield, prompting calls for evolutionarily enlightened management to reduce the probability of FIE and mitigate its risks. Su…