939 research outputs found
L.D. Trotsky and Activity of Research and Technology Division of USSR Supreme Council of National Economy in mid-1920s
No full textThe article considers the activities of L.D. Trotsky as the head of the Research and Technology Division of the Supreme Council of National Economy of the USSR in 1925–1926. The author uses archival documents from the Fund of the Russian State Archive of Economy, documents from the Russian State Archive of Social and Political History and other sources. There is analyzed L.D. Trotsky’s contribution to the development of applied science in the USSR
Manifesto on Neighbourliness
No full textThe manifesto and toolkit offers a starting place for ethical creative inquiry when making work with other people or community from an institutional position, such as student, artist-in-resident, or faculty. It is in response to the author’s experience as a community practice artist who spent their undergraduate degree at Emily Carr University frustrated with the overwhelming pressure to create fast-paced, ethically questionable projects using community as subject. Manifesto on Neighbourliness: Ethics Toolkit for Creative Community Inspiration collates knowledge shared via conversation, reading assignments, making mistakes, and other forms of interdependent inquiry. Mickey L.D. Morgan explores ethics through themes such as care, mitigating violence, responsibility, while at the same time an attempt at practicing these through situating themself within the text
Theoretical studies of the historical development of the accounting discipline: a review and evidence
No full textMany existing studies of the development of accounting thought have either been atheoretical or have adopted Kuhn's model of scientific growth. The limitations of this 35-year-old model are discussed. Four different general neo-Kuhnian models of scholarly knowledge development are reviewed and compared with reference to an analytical matrix. The models are found to be mutually consistent, with each focusing on a different aspect of development. A composite model is proposed. Based on a hand-crafted database, author co-citation analysis is used to map empirically the entire literature structure of the accounting discipline during two consecutive time periods, 1972–81 and 1982–90. The changing structure of the accounting literature is interpreted using the proposed composite model of scholarly knowledge development
High efficiency removal of dissolved As(III) using iron nanoparticle-embedded macroporous polymer composites
No full textNovel nanocomposite materials where iron nanoparticles are embedded into the walls of a macroporous polymer were produced and their efficiency for the removal of As(III) from aqueous media was studied. Nanocomposite gels containing ?-Fe2O3 and Fe3O4 nanoparticles were prepared by cryopolymerisation resulting in a monolithic structure with large interconnected pores up to 100 ?m in diameter and possessing a high permeability (ca. 3 × 10?3 m s?1). The nanocomposite devices showed excellent capability for the removal of trace concentrations of As(III) from solution, with a total capacity of up to 3 mg As/g of nanoparticles. The leaching of iron was minimal and the device could operate in a pH range 3–9 without diminishing removal efficiency. The effect of competing ions such as SO42? and PO43? was negligible. The macroporous composites can be easily configured into a variety of shapes and structures and the polymer matrix can be selected from a variety of monomers, offering high potential as flexible metal cation remediation devices
Biohydrogen production under hyper salinity stress by an anaerobic sequencing batch reactor with mixed culture
No full textBackground: This study investigated the effect of organic loading rate (OLR) and NaCl concentration on biohydrogen production by preheated anaerobic sludge in a lab scale anaerobic sequencing batch reactor (ASBR) fed with glucose during long time operation. Methods: During ASBR operation, the OLR was increased in steps from 0.5 to 5 g glucose/L.d and NaCl addition started at an OLR of 5 g glucose/L.d, to obtain NaCl concentrations in the reactor in the range of 0.5-30 g/L. Results: With an increasing OLR from 0.5 to 5 g glucose/L.d, the biohydrogen yield increased and reached 0.8 ± 0.4 mol H2/mol glucose at an OLR of 5 g glucose/L.d. A NaCl concentration of 0.5 g/L resulted in a higher yield of biohydrogen (1.1 ± 0.2 mol H2/mol glucose). Concentrations above 0.5 g/L NaCl led to decreasing biohydrogen yield and the lowest yield (0.3 ± 0.1 mol H2/mol glucose) was obtained at 30 g/L of NaCl. The mass balance errors for C, H, and O in all constructed stoichiometric reactions were below 5%. Conclusions: The modified Monod model indicated that r (H2)max and Ccrit values were 23.3 mL H2/g VSS/h and 119.9 g/L, respectively. Additionally, ASBR operation at high concentrations of NaCl shifted the metabolic pathway from acidogenic toward solventogenic.Sanitary Engineerin
The Role, Design and Operation of Distribution Centres in Agile Supply Chains
No full textThe aim of this research is to explore the role of distribution centres (DCs) in agile
supply chains, together with how they should be designed, operated and their
performances measured within this context. The research is based, first of all, on a
survey to ascertain the current situation, and then a series of case studies of
international supply chains, DC designs, DC operations, and warehouse automation
projects. The techniques used include questionnaires, semi-structured interviews,
quantitative measures where appropriate and qualitative measures based on 5-point
Likert scales. A number of constructs are used, particularly from supply chain agility
and manufacturing agility literature, and these are refined and extended to form the
basis for the research.
The findings indicate that a prime role of distribution centres, particularly in terms of
inventory-holding, is consistent with the decoupling point concept. Further roles for
distribution centres in agile supply chains include cross-docking, postponement
activities, and returns.
The research identifies five types of agility, namely volume, time, unit quantity,
presentation and information. The responses to these different types can then be
categorised according to the combination of levels (i.e. supply chain, business unit,
distribution network, and distribution centre), by the type of resource used (i.e. land /
building, equipment, staff, and process / systems), and by how these are deployed (i.e.
extra capacity, additional resources when needed, and flexible resources). Agility
measurement can be undertaken using the categories of range, mobility and
uniformity.
With markets becoming more volatile, agility can offer a key source of competitive
advantage. However, warehouses are by their nature long-term fixed assets and
therefore difficult to incorporate into an agile strategy. The series of frameworks
developed during this research begins to address this important area and thus forms a
basis for further research as well as providing some initial frameworks to assist
practitioners
Routine diagnosis of 7 respiratory viruses and mycoplasma-pneumoniae by enzyme-immunoassay
No full textAbstract not availableTuckweng Kok, Lance D. Mickan, Christopher J. Burrel
Becoming a good host: A beginner’s guide to learning deliberative civic engagement
No full textThis article examines how Deliberative Civic Engagement (DCE) is used as a public engagement process to invite disjointed cultural communities into a shared space to engage in democratically inspired dialogue. Dialogue is sought in DCE events because it encourages reflexivity and allows for collaborative ideation processes. Collaboration among differing groups demands that DCE events are open enough to be influenced by the immediate concerns of the participants involved. In addition, openness and vulnerability are required to support deep level thinking and connection between heterogeneous identities represented.
Kevin L.D. Leaven is a recent graduate of the James Madison University’s graduate program in Communication and Advocacy.
Author\u27s note
As the COVID-19 crisis continues, social distancing is being encouraged to minimize the spread of the coronavirus. Consequently, many conversations between colleagues, friends, and family have moved online using platforms like Zoom and Google Hangouts. Digital technologies have enabled people to overcome some of the obstacles posed by this unprecedented viral event. However, merely having the technology to talk to our peers does not automatically make conversations easier. Nor does COVID-19 erase the social barriers that previously complicated our relationships. However, I believe that people are resilient and that there are ample tools available to spark meaningful discussions amongst our associates. Thus, this article serves as a primer for deliberative civic engagement, which provides one approach to facilitating constructive, informed, and decisive dialogue with others. I argue that cultivating constructive dialogue is a skill with multiple avenues for improvement. So I hope that this article will provide helpful ideas to strengthen your communication skills while encouraging you to engage in fruitful dialogue with others in your life
Traffic management and control in intelligent vehicle highway systems
No full textTraffic congestion is a problem experienced daily by most of us. Among various traffic management schemes, efficient utilisation of the existing roadside infrastructure combined with in-vehicle technologies offers a promising solution to address traffic congestion and related problems. This approach has resulted in the development of Intelligent Vehicle Highway Systems (IVHSs). An IVHS basically consists of roadside infrastructures interacting with automated intelligent vehicles (IVs) that are organised in a closely spaced groups called platoons. With platooning, more vehicles can be accommodated on the highway, thus increasing the traffic flow. In the present situation, most of the existing traffic management and control centers use conventional roadside-based control measures to improve the traffic performance. The objective of the thesis is to provide a framework and a systematic approach for integrating traffic control and management methods into the IVHS. The focus of the thesis is on combining the control capabilities offered by automated platoons with those of the roadside infrastructure. We aim at developing traffic management and control methods to be implemented at various control levels, by incorporating intelligence from and within vehicles. Thus the roadside controllers use both IV-based and conventional traffic control measures for controlling and managing platoons, such that the performance of the traffic is improved.Delft Center for Systems and ControlMechanical, Maritime and Materials Engineerin
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