3,015 research outputs found
Monitoring participatory approaches in Mediterranean waterfront developments (El Mina, Lebanon; Alexandria, Egypt; and Antalya, Turkey)
Public participation is an important tool for communities to influence development decisions for public spaces in general and waterfronts in particular. In coastal cities, waterfronts are an important touristic attraction and are affected by social and economic issues. Users’ activities and responsiveness to waterfront projects are affected by the development types and methods. This study is part of ongoing research aiming to evaluate the participatory approach methods in the waterfronts of Mediterranean cities. It examines three coastal cities that have developed differently based on sustainable development studies. This study is a top–down approach that investigates the applied phases and methods of participation and evaluates these involvements after comparison with the preferred phases and methods. This paper uses qualitative and quantitative methods, which are based on analysis of social studies about participation priorities. It uses methods such as documentation, lengthy interviews and questionnaires with visitors. The outcome of this research proves the need for application of participatory approaches in Mediterranean cities
RHIC and LHC phenomena with an unified parton transport
We discuss recent applications of the partonic pQCD based cascade model BAMPS with focus on heavy-ion phenomeneology in hard and soft momentum range. The nuclear modification factor as well as elliptic flow are calculated in BAMPS for RHIC end LHC energies. These observables are also discussed within the same framework for charm and bottom quarks. Contributing to the recent jet-quenching investigations we present first preliminary results on application of jet reconstruction algorithms in BAMPS. Finally, collective effects induced by jets are investigated: we demonstrate the development of Mach cones in ideal matter as well in the highly viscous regime
INVESTIGATING THE RELATIONSHIP BETWEEN USER\u27S DENSITIES AND FUNCTIONS DISTRIBUTION ON MEDITERRANEAN WATERFRONTS: STATISTICAL ANALYSIS APPROACH
The type of buildings and activities along the waterfronts have to stimulate the interactivity between public spaces and their users to reach the desired comfort, enjoyment and appropriate densities. This study is part of a continuing research and it aims to highlight the spatial relationship between the type of buildings and the densities on cities waterfronts of the Mediterranean Sea. It undertakes three case studies with different economic and touristic levels. It is a top-bottom approach that analyzes the existing population densities on waterfronts and the surrounding building functions. This paper uses quantitative analysis based on spatial statistics along each of the three waterfronts. The data collection is made through documentation, direct observations, mapping, Global Positioning System, and Geographic Information System software. The outcome of this research evaluates the relationship between functions and population densities to record how locations of functions increase population on waterfronts by making them attractive and recommends how waterfront zoning laws will consider specific land uses and techniques
Hunting for Dark Matter Coannihilation by Mixing Dijet Resonances and Missing Transverse Energy
Simplified models of the dark matter (co)annihilation mechanism predict
striking new collider signatures untested by current searches. These models,
which were codified in the coannihilation codex, provide the basis for a dark
matter (DM) discovery program at the Large Hadron Collider (LHC) driven by the
measured DM relic density. In this work, we study an exemplary model featuring
-channel DM coannihilation through a scalar diquark mediator as a
representative case study of scenarios with strongly interacting coannihilation
partners. We discuss the full phenomenology of the model, ranging from low
energy flavor constraints, vacuum stability requirements, and precision Higgs
effects to direct detection and indirect detection prospects. Moreover,
motivated by the relic density calculation, we find significant portions of
parameter space are compatible with current collider constraints and can be
probed by future searches, including a proposed analysis for the novel
signature of a dijet resonance accompanied by missing transverse energy (MET).
Our results show that the TeV LHC with luminosity
should be sensitive to mediators as heavy as 1 TeV and dark matter in the
400--500 GeV range. The combination of searches for single and paired dijet
peaks, non-resonant jets + MET excesses, and our novel resonant dijet + MET
signature have strong coverage of the motivated relic density region,
reflecting the tight connections between particles determining the dark matter
abundance and their experimental signatures at the LHC.Comment: 35 pages, 9 figure
Relativistic shock waves and Mach cones in viscous gluon matter
To investigate the formation and the propagation of relativistic shock waves in viscous gluon matter we solve the relativistic Riemann problem using a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock waves by varying the shear viscosity to entropy density ratio n/s. Furthermore we compare our results with those obtained by solving the relativistic causal dissipative fluid equations of Israel and Stewart (IS), in order to show the validity of the IS hydrodynamics. Employing the parton cascade we also investigate the formation of Mach shocks induced by a high-energy gluon traversing viscous gluon matter. For n/s = 0.08 a Mach cone structure is observed, whereas the signal smears out for n/s >=0.32
Role of ethylene on various ripening pathways and on the development of sensory quality of Charentais cantaloupe melons
Charentais melons (Cucumis melo L., var cantalupensis Naud.) in which ethylene biosynthesis has been suppressed by an antisense ACC oxidase gene have been used to better understand the role of ethylene in the regulation of the ripening process of climacteric fruit and on the development of sensory qualities. We have shown that a number of biochemical and molecular processes associated with the ripening of climacteric fruit are ethylene-independent. In some cases, such as softening of the flesh, the same pathway comprises both ethylene-dependent and -independent components. The various ethylene-dependent events exhibit differential sensitivity to ethylene. The threshold level for degreening of the rind is 1 ppm, while 2.5 ppm are required to trigger the ethylene-dependent component of the softening process. The saturating level of ethylene for all these events is less than 5 ppm, which is by far lower than the internal ethylene concentrations found in the fruit at the climacteric peak (around 100 ppm). Detachment of the fruit influences the development of respiratory climacteric. Fruit remaining attached to the vine, although producing higher levels of ethylene, exhibit a reduced climacteric rise in respiration as compared to detached fruit. The response of antisense ACO fruit to exogenous ethylene in terms of respiration is higher in detached than in attached fruit. Ethylene-suppressed melons show a severe reduction of aroma volatiles production, particularly in ester production. In the biosynthetic pathway of aliphatic esters, the dehydrogenation of fatty acids and aldehydes appears to be ethylene-dependent. In contrast, alcohol acetylation comprises ethylene-dependent and ethylene-independent components, probably corresponding to differentially regulated alcohol acetyl transferases. In terms of sensory quality, these data show that the extension of shelf-life through the inhibition of ethylene production has some beneficial effects on texture and sugar accumulation but is detrimental for the generation of aroma
UPGRADING HERITAGE URBAN PUBLIC SPACES BY USING RECYCLING WASTE PLASTIC MATERIALS
In low-income countries, population expansion and urbanization bring challenges of inadequate living standards to the fore. Some of the issues could be solved if well-functioning plastic recycling systems were built. To reduce the environmental burden and improve the overall situation in dense cities, the already existing local informal waste treatment system, which is widespread in many low-income nations, needs to be developed with efficient sorting and composting solutions. A case study is carried out in the city of Mina, Lebanon, with the goal of establishing a viable decentralized recycling plastic pavilion material. The effort aims to lessen the climate harm caused by non-recycled waste, improve the quality of life for residents, and enhance the affected locations\u27 aesthetical, educational, and recreational attributes. The concepts were generated according to the resident\u27s needs and to find solutions to the existing problem of the area under study. The goals are based on data and observations about the city, the current waste management system, the stakeholders, the project organization, and any roadblocks. The project\u27s overall work method is known as the Logical Framework Approach. It\u27s a goal-oriented project planning method that relies on disciplined thinking and logical analysis. Literature review, observations, study visits, site analyses, photography, drawing, 3D modeling, and other sub-methods are included in the study. Proposals for plastic pavilions and plastic features for open public spaces in Al Mina are the result of the process. Because the areas have both comparable and dissimilar characteristics, site-specific solutions are required
Efficient implementation of code-based identification/signatures schemes
International audienceIn this paper we present efficient implementations of several code-based identification schemes, namely the Stern scheme, the Véron scheme and the Cayrel-Véron-El Yousfi scheme. For a security of 80 bits, we obtain a signature in respectively 1.048 ms, 0.987 ms and 0.594 ms
Radiomics strategies for risk assessment of tumour failure in head-and-neck cancer
Quantitative extraction of high-dimensional mineable data from medical images
is a process known as radiomics. Radiomics is foreseen as an essential
prognostic tool for cancer risk assessment and the quantification of
intratumoural heterogeneity. In this work, 1615 radiomic features (quantifying
tumour image intensity, shape, texture) extracted from pre-treatment FDG-PET
and CT images of 300 patients from four different cohorts were analyzed for the
risk assessment of locoregional recurrences (LR) and distant metastases (DM) in
head-and-neck cancer. Prediction models combining radiomic and clinical
variables were constructed via random forests and imbalance-adjustment
strategies using two of the four cohorts. Independent validation of the
prediction and prognostic performance of the models was carried out on the
other two cohorts (LR: AUC = 0.69 and CI = 0.67; DM: AUC = 0.86 and CI = 0.88).
Furthermore, the results obtained via Kaplan-Meier analysis demonstrated the
potential of radiomics for assessing the risk of specific tumour outcomes using
multiple stratification groups. This could have important clinical impact,
notably by allowing for a better personalization of chemo-radiation treatments
for head-and-neck cancer patients from different risk groups.Comment: (1) Paper: 33 pages, 4 figures, 1 table; (2) SUPP info: 41 pages, 7
figures, 8 table
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