Syndrome Remitting seronegative symmetrical synovitis with pitting edema (RS3PE) : à propos d’un cas au Sénégal: Remitting seronegative symmetrical synovitis with pitting edema (RS3PE) syndrome: A case report in Senegal

RS3PE syndrome is a rare inflammatory rheumatism affecting mainly elderly subjects. We report a peculiar observation in a fifty-two-year-old female patient who was admitted for migrating edema (that begun on the feet and then move to the back of the hands) associated with polyarthritis. The diagnosis of RS3PE was evoked in accordance with McCarty’s criteria. 12-month treatment with low doses of corticosteroids has led to a favorable clinical evolution. Le syndrome RS3PE (remitting symmetrical seronegative synovitis with pitting edema) est un rhumatisme inflammatoire rare touchant électivement le sujet âgé. Nous en rapportons une observation atypique chez une patiente de cinquante-deux ans admise pour des œdèmes migratoires (débutant au niveau des pieds puis aux dos des mains) associées à une polyarthrite. Le diagnostic de RS3PE a été retenu en accord avec les critères de McCarty. Sous traitement à base de corticoïde à faible dose administrée pendant douze mois, l’évolution clinique a été favorable

An updated systematic review and network meta-analysis of 25 randomized trials assessing the efficacy and safety of treatments in COVID-19 disease

To date, there is no definite effective treatment for the COVID-19 pandemic. We performed an update network meta-analysis to compare and rank COVID-19 treatments according to their efficacy and safety. Literature search was performed from MEDLINE and CENTRAL databases from inception to September 5, 2020. Randomized clinical trials (RCTs) which compared the effect of any pharmacological drugs versus standard care or placebo 28-day after hospitalization in adult patients with COVID-19 disease were included. Risk ratio (RR) and 95% CI were calculated for 28-day all-cause mortality, clinical improvement, any adverse event (AEs), and viral clearance. A total of 25 RCTs, evaluating 17 different treatments, and 11,597 participants were analyzed. Remdesivir for 10-day compared to standard care (RR 0.69, 95% CI [0.48–0.99]), and a low dose compared to a high dose of HCQ (0.38, [0.17–0.89]) were associated with a lower risk of death. A total of 2,766 patients experienced clinical improvement, a 5-day course of remdesivir was associated with a higher frequency of clinical improvement compared to standard care (RR 1.21, 95% CI [1.00–1.47]). Compared to standard care, remdesivir for both 5 and 10 days, lopinavir/ritonavir, and dexamethasone reduced the risk of any severe AEs by 52% (0.48, 0.34–0.67), 24% (0.77, 0.63–0.92), 40% (0.60, 0.37–0.98), and 50% (0.50, 0.25–0.98) respectively. In this study of hospitalized patients with COVID-19, administration of remdesivir for 10-day compared to standard care was associated with lower 28-day all-cause mortality and serious AEs, and higher clinical improvement rate.&nbsp

Analyse comparative des puissances transmises par trois mécanismes alternatifs et mécaniques

Les ingénieurs sont souvent face à un dilemme quand il s’agit de choisir un actionneur ou un mécanisme. C’est dans le but de faciliter ce choix qu’intervient cet article. Il porte sur l’analyse comparative de la puissance de sortie de trois mécanismes simples à savoir : le système bielle-manivelle, le système maneton-coulisseau et le système rotation-translation. Ces mécanismes ont la même caractéristique de la transformation d’un mouvement de rotation continu en mouvement de translation alterné.La présente étude a pour objectif de mettre la lumière sur les caractéristiques des puissances transmises aux coulisseaux des mécanismes alternatifs et mécaniques, concernés par ce travail. Pour ce faire, les puissances transmises aux coulisseaux ont été singulièrement caractérisées, suite : à leurs définitions et à l’interprétation de leurs représentations graphiques

Aptitudes À L’agriculture Des Eaux Souterraines Du Departement d’Agboville (Sud-Est De La Côte d’Ivoire)

In the department of Agboville, farmers are interested in the using of groundwater to improve the performance of their crops. But they didn’t know the effects of this water on the crops without. The main objective of this study is to determine the quality of groundwater to prevent the risk of soil alkalinization and salinization in the department of Agboville. Hydrochemical analysis of 28 wells used for irrigation of crops was carried out. The dry residue (RS), the osmotic pressure (π), Sodium Absorption Ratio (SAR), the percentage of sodium exchange (ESP), salinity potential (SP), and the coefficient or the Kelly ratio (RK) were determined. Wilcox diagram was also applied for this study. The results show that groundwater department are soft and lightly mineralized wiht a low salinity. 75% of samples from groundwater haves low salinity and 25% have an average salinity. The values of the Salinity Potential (SP <5), Kelly Ratio (RK <1) and SAR (SAR <10 méq/L) show that all sampled groundwater are good qualities for agriculture. According to Wilcox diagram, groundwaters are excellent quality for agriculutre. The osmotic pressure ( ), the dry residue (RS) and the conductivity values 75% of the sampled waters are excellent quality and 25% average quality for agriculture. Groundwaters from the department of Agboville have a low risk of alkalizing and can be used in irrigation for most crops

Influences of Storage Conditions, Cultivation and Culinary Practices, On the Antioxidant Capacity of Red Bulbs of Some Onion Varieties Grown in Burkina Faso

Red onion bulb is a vegetable containing micronutrients with antioxidant properties. However, certain factors can have an impact on the content of these compounds. The present research evaluate the effects of parameters such as cultural practices, storage conditions and culinary practices, on the antioxidants content of red onion bulb of some varieties grown in Burkina Faso. The identification of the factors was carried out through field surveys, and their effects on the antioxidants content were assessed and appreciated through especially specific related bibliographic and laboratory test data. The results showed that84.78% of farmers use chemical fertilizers and all of them use chemical pesticides on onion crop. They don’t use premises or equipment suitable for storage. About dishes,7.61% of cooks, peel, cut and wash onion bulb before steam cooking, boiling water cooking or oil frying them at high temperature during 30 minutes to 3 hours. Some cooks use to braise onion bulb scales as ingredients for different dishes such as barbecue. Only 02,72% of cooks grind the onion bulbs with a pestle, before using the crushed as such on barbecue, or slow cooking it in different sauces. Research results show that these culinary practices contribute declining significantly the final intake of antioxidant for the consumer's body

Influence of Agro-Ecological Areas on the Antioxidant Capacity of Onion Varieties Grown in Burkina Faso

Colored onion bulb is an important source of antioxidants. Some ecological factors can significantly influence the content and quality of these substances. The aim of the present study is to determine the antioxidant and total polyphenol content of fresh bulbs of five (05) varieties of onion (Galmi Violet, Damani Violet, Prema, Safari and a Local variety-LV) grown in Burkina Faso, and to evaluate also the influence of agro-ecological parameters on the antioxidant content of the most cultivated variety (Galmi violet) of them. Samples of onion bulb for analysis were collected in the six agro-ecological areas of Burkina Faso under the same cultivation conditions. Antioxidant activities were evaluated using the method of Ferric Reducing Antioxidant Power. The evaluation of the total polyphenol contents was carried out using the Folin-Ciocalteu method. The results showed that antioxidant activities for the 5 varieties tested vary between 0.125 ± 0.001 and 0.149 ± 0.004 mg TE / g, and total polyphenol contents from 0.172 ± 0.011 to 0.272 ± 0.003 mg EAG/g. Results on the assessment of the effect of ecology on the antioxidant content of Galmi violet variety revealed significant variations in antioxidant content from 0.144 ± 0.002 to 0.155 ± 0.001 mg TE / g, and total polyphenols from 0.208 ± 0.014 to 0.292 ± 0.012 mg EAG / g depending on the ecological cultivation area

VHR imagery to quantify crop response to fertilizer and develop business services for smallholders

Food needs arising from the demographic explosion of sub-Saharan Africa can only be met through agricultural intensification. Smallholder systems feature enormous yield gaps, which may be reduced through ISFM and other sustainable intensification practices. However, today’s huge variability in farming practices and returns on investments is likely to exacerbate in the future. Monitoring changes in productivity across scales is a significant challenge in heterogeneous systems, where overall low SOM and nutrient deficiencies prevail. Fortunately, remote sensing can help monitor crop performance at levels of granularity increasingly compatible with smallholder farming. This opens support applications for precision agriculture, allowing the exploitation – rather than the mitigation – of spatial heterogeneity, and the demonstration that enhanced productivity and livelihoods are possible in complex cropping systems

Incidence Des Fortes Fréquences De Stimulation Hormonale Sur Deux Régimes de Saignée Descendante Du Clone PB 215 : Faible (d6) et Modéré (d4), Au Sud-Est De La Côte D’Ivoire

The clone PB 235 of Hevea brasiliensis is characterized by a rapid growth, homogeneity, and a virgin bark which is suitable for tapping. However, it is sensitive to the very intense latex systems harvesting technologies. This paper focuses on determining the incidence of strong frequencies of stimulation on two downward tapping systems of clone PB 215: low (d6) or moderate (d4). Rubber trees were planted with the density of 510 trees/ha (7 m x 2.8 m) in accordance with a randomized complete block design. Tapping at d6 frequency with 8 and 12 hormonal stimulations and the d4 stimulated 0 and 8 times per year were evaluated. The intensification of hormonal stimulation with the d6 did not have any worthy beneficial effect on the dry rubber yield of the rubber trees. In d4, the stimulation involved a reduction in the sucrose content which led to a significant increase of the dry rubber yield. However, it contributed to an increase in the tapping panel dryness. At moderate tapping, the application of hormonalstimulation allowed us to distinguish between the two latex harvesting technologies. At d6, the two treatments were similar regardless of the stimulation level. Tapping at d6 supports a reduction of tapping workforce and a longer economical durability of the trees, compared to tapping at d4. The intensification of hormonal stimulation applied to lower tapping frequencies (d6) did not have any negative incidence on the clone PB 235. However, it has promoted tapping panel dryness in tapping at d4 frequency

Key barriers to the adoption of biomass gasification in Burkina Faso

The industrial sector in Burkina Faso faces two significant energy challenges access to efficient energy sources that are also renewable. Pyrolysis and gasification are emerging as conversion pathways that exploit available agricultural and industrial biomass. Pyrolysis has been adopted successfully, whereas gasification failed without getting beyond the experimental stage. This article assesses potential barriers to the adoption of gasification based on interviews with the stakeholders of the energy sector (users, NGOs, policy makers). We use pyrolysis as a benchmark to point out the barriers to adoption. The hierarchical analysis process (AHP) method was applied to identify the most significant barriers to the adoption of gasification. Twenty-seven barriers were identified and prioritized in two dimensions and five categories “technical”, “economic and financial”, “socio-cultural and organizational”, “political, governmental and institutional”, and “ecological and geographical” barriers. The category of socio-cultural and organizational barriers emerged as the most critical in the adoption of gasification. This category deserves special consideration to go past the pilot installation stage and adopting this technology

Etude des Effets Antianémiques d’un Complément Alimentaire à Base de Feuilles de Jatropha gossypiifolia chez des Rats Wistar

L’anémie constitue l’un des problèmes de santé publique les plus répandus au monde. Le présent travail a pour objectif d’évaluer les propriétés antianémiques des feuilles de Jatropha gossypiifolia (FJG) en l’utilisant comme complément alimentaire chez des rats Wistar. Ainsi, après un screening phytochimique, une étude toxicologique de l’extrait aqueux de la plante a été réalisée sur des souris femelles. En vue d’évaluer l’effet antianémique de cette plante, 5 lots de 5 rats Wistar mâles ont été constitués et une anémie hémolytique a été induite chez 4 lots (II à V) par administration de 20 mg/kg PC de 2,4-dinitrophénylhydrazine pendant 7 jours. Ensuite, tous ces rats ont été nourris pendant 14 jours suivant l’induction d’anémie comme suit : lot I : régime normal (témoin normal),  lot II : régime normal (témoin négatif), lot III : régime normal+ Ranferon® (témoin positif), lot IV : régime normal +10% de FJG et lot V : régime normal+ 20% de FJG. Les résultats montrent que les FJG contiennent des stérols, polyterpènes, composés phénoliques, flavonoïdes, quinones, tanins catéchiques, alcaloïdes et saponosides. Par ailleurs l’extrait aqueux de feuilles n’est pas toxique par voie orale. En outre, les régimes alimentaires à base de FJG ont, tout comme le Ranferon® rétabli partiellement ou totalement les différents paramètres hématologiques mesurés à la fin de l’expérimentation. Ces résultats indiquent que J. gossypiifolia possède des propriétés antianémiques.   Anaemia is one of the most widespread public health problems in the world. The objective of this work was to evaluate the anti-anaemic properties of Jatropha gossypiifolia leaves (JGL) by using it as a food supplement in Wistar rats. Thus, after a phytochemical screening, a toxicological study of the aqueous extract of the plant was carried out on female mice. In order to evaluate the anti-anaemic effect of this plant, 5 groups of 5 male Wistar rats were formed and haemolytic anaemia was induced in 4 groups (II to V) by administration of 20 mg/kg BW of 2,4-dinitrophenylhydrazine for 7 days. Then, all these rats were fed for 14 days following the induction of anaemia as follows: group I: normal diet (normal control), group II: normal diet (negative control), group III: normal diet + Ranferon® (positive control), group IV: normal diet + 10% JGL and group V: normal diet + 20% JGL. The results showed that JGL contained sterols, polyterpenes, phenolic compounds, flavonoids, quinones, catechic tannins, alkaloids and saponosides. Moreover, the aqueous leaf extract was not toxic orally. In addition, JGL-based diets, like Ranferon®, partially or totally restored the various haematological parameters measured at the end of the experiment. These results indicated that J. gossypiifolia had anti-anaemic properties