Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 87 for “"ASM"”.
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X-ray periodicities in sources observed by the RXTE ASM
… sources observed by the RXTE All-Sky Monitor (ASM) were analyzed for periodic behavior. The ASM has been observing sources for nine years in the 1.5-12 keV energy range. In this search, we investigated a frequency range of 5 d⁻¹ to 144 d⁻¹ for periodic modulation. The search was carried out by …
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Socio-technical assessment of mercury and gold losses in artisanal and small-scale mining (ASM) operations in Colombia, A
In Colombia, the artisanal and small-scale gold mining (ASGM) sector represents about 70% of the mining activities, and approximately 80% of Colombia’s gold comes from this sector. In addition, the ASGM sector in Colombia releases about 90 tons of mercury per year. Although the Colombian government …
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A systematic periodicity and time-variable modulation search in RXTE ASM data : methods, findings, and implications for astrophysical X-ray sources
In this work, we present the results of a general search for periodicities and for time-variable modulation strength in X-ray sources using data from the All-Sky Monitor onboard the Rossi X-ray Timing Explorer. New findings, including a sharp increase in the modulation of the X-ray flux from the …
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Role of SABP2 in Systemic Acquired Resistance Induced by Acibenzolar-S-Methyl in Plants.
… mechanism in plants. Acibenzolar-S-Methyl (ASM) is a commercially available chemical inducer of local and systemic resistance (SAR) response in plants. ASM functioning at molecular level is mostly unclear. This research was designed to investigate the mechanism of ASM action in plants. It …
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The 'formalisation dilemma' of artisanal and small-scale mining: an analysis with reference to the Democratic Republic of the Congo
… the informal Artisanal and Small-scale Mining (ASM) sector in sub-Saharan Africa, focusing on the case of the Democratic Republic of Congo (DRC). The debate around ASM's informality in sub-Saharan Africa is increasingly gathering momentum in the region's development and donor dialogues. A unique …
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Sphingomyelinases and Lysosomal Trafficking in Ebolavirus Entry
… exocytosis, pH-dependent acid sphingomyelinase (ASM) is released to the plasma membrane‟s outer leaflet, resulting in ASM-dependent macropinosome formation. Because EBOV enters via a macropinocytosis-like mechanism, the role of ASM in infection was assessed. Specific ASM chemical inhibitors and …
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The association between testosterone and muscle mass, muscle strength, and physical function in Korean men aged 60 and older
… calculated with appendicular skeletal muscle (ASM) by height square or weight. RESULTS: Serum testosterone had significant relationship with muscle mass (ASM adjusted for body weight: p=0.023). However, serum testosterone had no significant relationship with muscle mass (ASM adjusted for height …
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The limitations of the legal framework in addressing the problem of child labour in artisanal and small-scale mining in Zimbabwe
… people into artisanal and small-scale mining (ASM) of various minerals for survival. Many children in these families and those of child-headed homes also participate in ASM to the extent of dropping out from school. The ASM environment, which is largely informal thus lacking government …
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Induced disease resistance elicited by acibenzolar-S-methyl and plant growth-promoting rhizobacteria in tobacco (Nicotiana tabacum L.)
… (ISR). IR, triggered by acibenzolar-S-methyl (ASM) or plant growth-promoting rhizobacteria (PGPR), was evaluated on two-to-three types of tobacco in greenhouse and field studies. Tobacco mosaic virus (TMV) local lesion assays monitored induction and maintenance of ASM-induced SAR over a 21 day …
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Mercury Supply at Artisanal and Small-Scale Gold Mines in Africa: Actors, Distribution and Networks
… plays in artisanal and small-scale mining (ASM) and broader agrarian livelihoods, in rural sub-Saharan Africa. In doing so, it seeks to introduce a fresh perspective to the debate on mercury in the region’s ASM sector, which has focused predominantly on the environmental and health-related …
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Optimization of warehouse operations and transport risk mitigation for disposable bioreactor bags to support launch of Amgen Singapore Manufacturing
… launching a new manufacturing site in Singapore (ASM). Reliability of supply and quality control will be critical factors for successful ASM launch; therefore, this project will focus on two key objectives: optimization of raw material flow for the ASM warehouse, and transportation risk mitigation …
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Observations of X-ray counterparts to gamma-ray bursts in RXTE's All-Sky Monitor
… X-ray sources observed by the All-Sky Monitor (ASM) on the Rossi X-ray Timing Explorer (XTJS), I used this system to identify fourteen Gamma-Ray Bursts (GRBs). Eight of these events were found in archived ASM observations from the first 1.5 years of operation, but the rest were detected and …
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Determinants and Implications of Chinese Involvement in Informal Artisanal and Small-scale Gold Mining in Ghana: Perspectives from the Grassroots
… relevance of artisanal and small-scale mining (ASM) in poverty reduction in Ghana and in the nation’s mineral production, this mining branch also presents huge environmental and social challenges due to weak regulation. Over the last decade, the proliferation of Chinese gold seekers into Ghana’s …
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Multiview active shape models with SIFT descriptors
… of human faces. A modified Active Shape Model (ASM [21]) is introduced that uses a form of SIFT descriptors [68]. Multivariate Adaptive Regression Splines (MARS [40]) are used to efficiently match descriptors around landmarks. This modified ASM is fast and performs well on frontal faces. The …
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The needs of miners: political ethics, mercury abatement, and intervention in artisanal gold mining communities
… from artisanal and small-scale gold mining (ASM). ASM is the second largest source of anthropogenic global mercury pollution, accounting for roughly 1000tonnes of atmospheric emissions and releases to the environment per annum. The artisanal mining economy involves 10-15 million people across …
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Model predictive control of wheeled mobile robots
… faster than the traditional active set methods (ASMs). A discrete-time linear model of a general WMR is used for the simulation. MATLAB simulations are performed for tracking circular as well as square trajectories using the discretized WMR model and the non-feasible ASM (NF-ASM). The performance …
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Influence of Overall Habitual Physical Activity on the Age-Related Change in Muscle Mass in 60 to 85 Year-Olds
… (p < 0.05) in appendicular skeletal muscle (ASM) mass by 1.9%, mineral-free lean mass by 1.6%, fat-free mass by 1.8%, bone mineral density by 5.3% and bone mineral content by 5.8%. Percent body fat increased by 8.9% (relative change) and total fat by 12.5%. Height decreased ( p < 0.05). …
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A study of the long-term behavior of galactic X-ray sources with RXTE
… the 4.5-year database of the All Sky Monitor (ASM), and pointed observations made with the Proportional Counter Array (PCA) on board the Rossi X-ray Timing Explorer (RXTE). I have conducted a systematic search through the ASM data of all the 300 X-ray sources monitored for evidence of periodic …
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Unshackling South African artisanal miners: Considering Burkina Faso's legislative provisions as a guideline for legalisation and regulation
… is an ‘Artisanal and Small-Scale Mining (ASM) for SA Strategy’, involving the amendment of the existing policy and legal framework regulating both artisanal and small-scale mining, and the improvement of accompanying support initiatives. It is based on the premise that the revision of …
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Effects of cannibalism, maternal age and varying fish selectivity in age structured models of deep water hake populations
An Age Structured Model (ASM) was develop in which dynamic and density-dependent cannibalism was included as a top-down control on a modeled population of M. paradoxus which used spawner biomass and maternal based recruitment. The ASM was used to evaluate the effects cannibalism had on age …
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