An Approach of Business Decision Making based on E-Learning and Knowledge Management

Today's, companies have increasingly been faced with many pressures related to competition and competitiveness. Understanding and influencing these changes requires effective management of human knowledge, including decision-making. This paper examines an experience of implementing knowledge management within organizations. We propose an approach based on E-Learning and its components to establish an organizational memory of documents, processes and Decision-making knowledge. We have been particularly interested in training in decision-making and we have accompanied the entity studied in a process of explicitation of knowledge and conduct of the change

Removal Efficiency of Lipid-regulating Drug Clofibric Acid from the Aquatic Environment by Calcined Anionic Clay ZnAl-CO3

Clofibric acid (CA) is widely used as regulator of lipid levels in blood; it is considered one of the residual drugs that have a high persistence in the aquatic environment. After wastewater treatment, only a small amount of CA can be removed. The aim of this work was to investigate the reduction of CA in contaminated wastewater using calcined anionic clay ZnAl-CO3, which was chosen for its higher adsorption capacity, recyclability, and non-regeneration of sludge. The maximum retention amount, Qm, exceeded 2220 mg g–1, and the value of DH° suggested a physical process. The removal rate achieved 90 %, and the remaining quantity was widely below the tolerance thresholds. Retention was achieved by hydrogen bonds and electrostatic interactions between the adsorbate molecules. Recycling tests clearly suggested that this material is recyclable, promising, and very effective compared to other adsorbents. This retention contributes to the attenuation of persistent lipid regulator. This work is licensed under a Creative Commons Attribution 4.0 International License

Electrical characterization of the soft breakdown failure mode in MgO layers

The soft breakdown (SBD) failure mode in 20 nm thick MgO dielectric layers grown on Si substrates was investigated. We show that during a constant voltage stress, charge trapping and progressive breakdown coexist, and that the degradation dynamics is captured by a power-law time dependence. We also show that the SBD current-voltage (I-V) characteristics follow the power-law model I = aVb typical of this conduction mechanism but in a wider voltage window than the one reported in the past for SiO2. The relationship between the magnitude of the current and the normalized differential conductance was analyzed

Study of the effect of chromium on the germination parameters of Fenugreek (Trigonella foenum-gracium L.) and Lens (Lens culinaris)

Received: September 21st, 2022 ; Accepted: January 2nd, 2023 ; Published: February 8th, 2023 ; Correspondence: [email protected] contamination by heavy metals is a global environmental problem. This contamination affects agricultural crops in the area concerned. In the present study, chromium, which is a heavy metal, is evaluated for its diverse effects on seed germination and lateral growth of fenugreek and lens seeds. A chromium solution was prepared at increasing concentrations: 0, 0.02, 0.04, 0.06, 0.08, 0.1, and 0.2 mg L-1 for the addition of germinating seeds in petri dishes for ten days. After two days, the germination rate is calculated. For the following days the length of radicle, stem, and number of leaves are measured. The germination rate of fenugreek varies between 100 and 73.33% for the control and 0.02 mg L-1 of chromium respectively. However, the germination rate of the lens varies between 100% for the control and 90% for the 0.02 mg L-1 . The elongation of fenugreek radicle with chromium solutions shows a significant effect. However, there is no significant difference in the lens at the different concentrations. For the growth of the fenugreek stalk, it is noticed that the concentration 0.02 shows a length of 2.83 cm compared to their control which is 2.30 cm. Consequently, chromium at 0.02 mg L-1 stimulates growth, but at 0.2 mg L-1 , it inhibits it. For lens the length of the stems shows also a significant difference compared to their control. So the effect of chromium on germination parameters depends on their concentrations, as well as on the seed response itself. For our research the response of fenugreek compared to the lens at the same concentrations is different

Assessment of the Shellfish Production Areas’ Quality: The Oualidia and Sidi Moussa Lagoons Case

Based on European regulation 91/492/EC, Morocco, very early, established legislation with conditions for producing and marketing live bivalve molluscs. In applying this legislation, the National Institute of Fisheries Research (INRH)   has set up a system for sanitary monitoring of the marine environment, through which several harvesting areas have been classified while others are in progress. In January 2020, the Oualidia and Sidi Moussa lagoons were categorized respectively in classes B and C with respectively 52.77% of the results, which were between 230 and 4600 MPN E. coli / 100 g of flesh and intravalvular liquid (FIL) and 11.11% of results that fell between 4600 and 46000 MPN E. coli / 100 g FIL. Sidi Moussa lagoon has been classified as a clean area category C since 2006. As a result, the oyster farming activity has been suspended in this area. This incident is a warning sign of the significant weakness of these ecosystems in addressing multiple social and economic challenges. On another side, INRH has sufficient data and tools to progress towards a better optimization of the marine environment sanitary monitoring program management

Assessment of the Shellfish Production Areas’ Quality: The Oualidia and Sidi Moussa Lagoons Case

Based on European regulation 91/492/EC, Morocco, very early, established legislation with conditions for producing and marketing live bivalve molluscs. In applying this legislation, the National Institute of Fisheries Research (INRH)   has set up a system for sanitary monitoring of the marine environment, through which several harvesting areas have been classified while others are in progress. In January 2020, the Oualidia and Sidi Moussa lagoons were categorized respectively in classes B and C with respectively 52.77% of the results, which were between 230 and 4600 MPN E. coli / 100 g of flesh and intravalvular liquid (FIL) and 11.11% of results that fell between 4600 and 46000 MPN E. coli / 100 g FIL. Sidi Moussa lagoon has been classified as a clean area category C since 2006. As a result, the oyster farming activity has been suspended in this area. This incident is a warning sign of the significant weakness of these ecosystems in addressing multiple social and economic challenges. On another side, INRH has sufficient data and tools to progress towards a better optimization of the marine environment sanitary monitoring program management

Seismic risk in the city of Al Hoceima (north of Morocco) using the vulnerability index method, applied in Risk-UE project

The final publication is available at Springer via http://dx.doi.org/10.1007/s11069-016-2566-8Al Hoceima is one of the most seismic active regions in north of Morocco. It is demonstrated by the large seismic episodes reported in seismic catalogs and research studies. However, seismic risk is relatively high due to vulnerable buildings that are either old or don’t respect seismic standards. Our aim is to present a study about seismic risk and seismic scenarios for the city of Al Hoceima. The seismic vulnerability of the existing residential buildings was evaluated using the vulnerability index method (Risk-UE). It was chosen to be adapted and applied to the Moroccan constructions for its practicality and simple methodology. A visual inspection of 1102 buildings was carried out to assess the vulnerability factors. As for seismic hazard, it was evaluated in terms of macroseismic intensity for two scenarios (a deterministic and probabilistic scenario). The maps of seismic risk are represented by direct damage on buildings, damage to population and economic cost. According to the results, the main vulnerability index of the city is equal to 0.49 and the seismic risk is estimated as Slight (main damage grade equal to 0.9 for the deterministic scenario and 0.7 for the probabilistic scenario). However, Moderate to heavy damage is expected in areas located in the newer extensions, in both the east and west of the city. Important economic losses and damage to the population are expected in these areas as well. The maps elaborated can be a potential guide to the decision making in the field of seismic risk prevention and mitigation strategies in Al Hoceima.Peer ReviewedPostprint (author's final draft

Fertilizing power evaluation of different mixtures of organic household waste and olive pomace

Received: February 15th, 2022 ; Accepted: June 27th, 2022 ; Published: August 12th, 2022 ; Correspondence: [email protected] the perspective of sustainable agriculture established by the Green Morocco Plan, it is interesting to direct research more towards the agronomic valorization of olive pomace, to give birth to a clean olive growing which leads to a viable economy thus respecting a pillar of sustainable development. Several studies have shown the effectiveness of using olive pomace as a soil amendment. Therefore, in this study we want to increase the agricultural performance of olive pomace by composting by mixing it with other waste. Morocco is considered one of the major olive-producing countries with an annual production of 1.41 million tonnes (MT), part of it is dedicated to olive oil production. Morocco produces approximately 26.8 MT of waste annually, 8.3 MT are household waste, 70% are organic household waste (5.8 MT). The current production of organic household waste in urban areas is estimated at 4.8 million tonnes per year, or an average of 0.76 kg hab-1 day-1 , and in rural areas 1 million tonnes per year, or an average of 0.30 kg hab-1 day-1 (SNRVD, 2015). Agri-food industry waste is around 3 million tonnes with 600,000 to 700,000 tonnes of olive oil waste (pomace) (Agricultural Development Agency, 2018). The rejection of this waste without any prior treatment contributes to the environment deterioration. However, a large part of this waste remains recoverable, which would reduce both waste volume to be eliminated and the associated management cost. This; will contribute to reducing the negative impacts on receiving environments and the cost of restoring the environment state, and ensuring a transition towards a circular economy. Our work is part of the context of solid waste management and recovery, in particular organic waste from household and food-processing activities, and is oriented towards the pomace recovery by composting, mixing it with different percentages of organic household waste. This work consists on composting olive pomace from the three phases system with another structural agent (organic household waste). Comparing the mixtures (6 treatments) with different concentrations in terms of composting process parameters (pH, electrical conductivity, organic matter temperature, etc.), organic matter evolution and composts quality, with manual aeration of the compost, in order to increase the agricultural yield of the olive pomace. Residues from the fermentation process can be used in agriculture. All the different mixtures of the different percentages are characterized at the initial state and at the end of the composting process in order to highlight their nutritional values

Electrical Properties of High-k Oxide in Pd/Al2O3/InGaAs Stack

The paper presents the results of capacitance-voltage (C-V) characterization of metal-oxidesemiconductor (MOS) structure, namely Pd/Al2O3/ In0.53Ga0.47As/InP. It is shown that MOS structure under study exhibit both electron and hole trapping with permanent and temporary charge trapping contributions. The interfacial transition layer between the high-k oxide and InGaAs has the greatest influence on this charge trapping phenomenon. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3504