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Evaluation of the Burnout of Caregivers of Institut de Cancérologie d’Akanda

psycho-Oncologie 2023年第4期17卷 267-273页

作者： A.C.Filankembo Kava B.C.Ndjengue Bengono p.l.nzamba bissielou C.Nziengui Tirogo A.Kabena T.Mpami E.Belembaogo Institut de cancérologie d’Akanda Libreville3000Gabon

Aim:Oncologists are particularly prone to developing burnout syndrome due to the demanding task of caring for cancer *** and incorrectly managed,burnout can have a negative impact on professional *** objective of the study is to measure the frequency of burnout among nursing staff at the Institut de Cancérologie d’Akanda(ICA)and to assess the main risk ***:We conducted a cross-sectional study at the ICA during the month of January *** was assessed using the Maslach Burnout Inventory(MBI).Results:Between the 42 participants,there was a female predominance(57.1%)with a male to female sex ratio of *** mean age was 39.57±8.13 *** represented more than half of the sample(52.5%).The average years of service at the ICA was 6.30±4.80 *** emotional exhaustion was found in 35.7%of *** for severe depersonalization and severe loss of achievement,they were found in 14.3%and 31.0%of participants,*** burnout was found in 14.3%of *** was a significant association between emotional exhaustion,acts of violence and family support(p=0.031;p=0.042).Subjects who are victims of acts of violence are 5 times more likely to develop severe emotional exhaustion than subjects who are not *** with family support had an 82.6%reduced risk of developing severe emotional *** was no statistically significant association between the socio-demographic or professional variables of the sample and depersonalization as well as the loss of professional ***:Burnout is relatively common at the *** is important to be able to identify it in order to prevent the harmful effects it can have on the physical and mental health of staff,which may be responsible for a negative impact on the functioning of the service and the care of patients.A plea must be made against the director in order to set up awareness campaigns for the identification of the disorder a

关键词： Burnout emotional exhaustion depersonalization personal accomplishment

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Chemical Composition Assessment by Wavelength Dispersive X-Ray Fluorescence of Agricultural Soils in the Mining Town of Moanda, Gabon

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Journal of Agricultural Chemistry and Environment 2021年第3期10卷 345-358页

作者： Albert Novy Messi Me Ndong Adam Bouraïma Crislain bissielou Jean-Jacques Anguile Thomas Makani laboratoire de Chimie des Matériaux Inorganique Université des Sciences et Techniques de Masuku Franceville Gabon

This work focuses on the analysis of the chemical composition of soils dedicated to agriculture in order to assess the impacts of manganese mining activity in the city of Moanda in South-East Gabon. The result of the analysis obtained using wavelength dispersive X-ray fluorescence revealed the presence of twenty-seven elements in the seventeen soil samples collected namely: Na, K, Rb, Mg, Ca, Sr, Ba, Ti, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Cr, Mn, Al, O, C, p, S, Si, I, Ac and Th. Iron (Fe), aluminum (Al) and manganese (Mn) were respectively higher. The practice of agriculture near mining sites is not without risks for the quality of agricultural products and the health of the population.

关键词： Metallic Trace Elements X-Ray Fluorescence Agricultural Soils

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Adsorption of Copper (II) Ions in Aqueous Solution by a Natural Mouka Smectite and an Activated Carbon prepared from Kola Nut Shells by Chemical Activation with Zinc Chloride (ZnCl<sub>2</sub>)

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Open Journal of Inorganic Chemistry 2021年第4期10卷 131-144页

作者： phil lewis Mpampoungou langama Jean Jacques Anguile Albert Novy Messi Me Ndong Adam Bouraima Crislain bissielou laboratoire de Chimie des Matériaux Inorganiques Faculté des Sciences Département de Chimie Université des Sciences et Techniques de Masuku Franceville Gabon

The aim of this work was to test the adsorption efficiency of copper (II) ions in an aqueous solution on Natural Smectite (NS) and Activated Carbon (AC). The experiments carried out in batch mode made it possible to determine the stirring time, the adsorbent mass, the pH, the initial concentration of copper (II) ions, the isotherms and the adsorption kinetics. It appears that the stirring time was 15 minutes for the AC and 20 minutes for the NS. The adsorption was at maximum for the two adsorbents at optimum pH of 3.5 for a mass of 0.05 g each. The quantity of copper (II) ions adsorbed was 26.6 mg/l for NS and 36.6 mg/g for AC of a concentration of 600 mg/l each. The langmuir isotherm was the one that best described the adsorption process for the two adsorbents. The adsorption kinetics obtained was that of the pseudo second-order for our two adsorbents. The results obtained showed that these two adsorbents were effective for the adsorption of copper (II) ions in an aqueous solution.

关键词： Batch Isotherm Kinetics Adsorption Activated Carbon Natural Smectite

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preparation and Characterization of Activated Carbons from Asparagus palm (laccosperma robustum) Bark by Chemical Activation with H₃pO₄ and KOH

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American Journal of Analytical Chemistry 2023年第2期14卷 55-71页

作者： phil lewis Mpampoungou langama Jean Jacques Anguile Crislain bissielou Adam Bouraïma Albert Novy Messi Me Ndong Daouda Kouotou Joseph Ketcha Mbadcam laboratoire de Chimie des Matériaux Inorganiques Département de Chimie Faculté des Sciences Université des Sciences et Techniques de Masuku Franceville Gabon physical and Theoretical Chemistry laboratory Department of Inorganic Chemistry Faculty of Science University of Yaoundé 1 Yaoundé Cameroon

The present work deals with the preparation and characterization of activated carbons from the bark of the asparagus palm (laccosperma robustum) by chemical activation with phosphoric acid and potassium hydroxide. The process was optimized on the basis of the analysis of the iodine number, methylene blue number and activated carbons yield as a function of the preparation parameters (concentration of the activating agents and the pyrolysis temperature). It emerges that the pyrolysis temperature and the concentration of activating agents influence the activated carbons preparation process. Their values were 500°C and 20% respectively for activated carbon with H3pO4 (ACp) and 700°C and 1.5% for activated carbon with KOH (ACK). The iodine numbers obtained were 850.26 mg/g for ACp and 865.49 mg/g for ACK. The methylene blue numbers obtained were 149.35 mg/g for ACp and 149.25 mg/g for ACK. The activated carbons yields obtained were 25% for ACp and 5.9% for ACK. The activated carbons prepared under optimal conditions have shown the pH of zero-point charge (pHzpc) of 4.4 and 7.0 for ACp for ACK respectively. The determination of the surface functions revealed that ACp had a strong acidic character while ACK had neutral character. The Fourier transformed infrared spectroscopy also showed the presence of different functional groups on the surface of the precursor and activated carbons.

关键词： Activated Carbons Asparagus palm Bark Chemical Activation phosphoric Acid potassium Hydroxide

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