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Characterizing downwind drift deposition of aerially applied glyphosate using RbCl as tracer

International Journal of Agricultural and Biological Engineering 2017年第3期10卷 31-36页

作者： Yanbo Huang claudiane m.ouellet-plamondon Steven J.Thomson Krishna N.Reddy United States Department of Agriculture Agricultural Research ServiceCrop Production Systems Research Unit141 Experiment Station RoadStonevilleMS 38776USA Department of Construction Engineering Superior Technology School1100 Notre-Dame Street WestMontrealQuebec H3C 1K3Canada United States Department of Agriculture National Institute of Food and AgriculturalDivision of Agricultural SystemsWaterfront Center80009th StreetSWWashingtonDC 20024USA

Rubidium chloride(RbCl)was used as a tracer tank-mixed with active ingredients to profile downwind deposition of aerially applied crop protection and production materials to characterize off-target drift,which helps improve spray efficiency and reduce environmental *** sheets were placed on a holder in the field at each sampling station to collect sprayed *** tracer was used to assess downwind drift of nozzles mounted on the booms installed and controlled on both sides of an agricultural *** experiment was conducted on a field covered by Bermuda grass(Cynodon dactylon).During the experiment,the airplane was planned to fly three passes with three replications at each of three different altitudes,3.7 m,4.9 m,and 6.1 m for total of 27 flight *** results indicated that sampling station location had a significant effect on RbCl ***,application release altitude was not significant to the change of *** practical application in the same aerial application system was used to assess crop injury from the off-target drift of aerially applied *** concentrations measured from mylar sheets were correlated with visual injury,plant height,shoot dry weight,leaf chlorophyll content,and shikimate,which were measured from the leaves and plant samples ***,RbCl is an effective tracer for monitoring spray applications from agricultural aircraft and unmanned aerial vehicles to intensify agriculture output and minimize environmental impact.

关键词： Rubidium chloride(RbCl) precision agriculture spray efficiency off-target drift aerial application herbicide crop injury environmental pollution

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Acute Fevers in the medical Unit of the medical-Surgical Emergency Department of the Donka National Hospital

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Open Journal of Internal medicine 2023年第2期13卷 95-103页

作者： Djibril Sylla Amadou Kake Thierno Amadou Wann mohamed Lamine Yaya Bah Akomou Lydia Koba mohamed Cirékeita mamadou Diakhaby Lansana Diaby Sèmèvo claudiane Toffon Internal medicine Department of the Donka National Hospital Conakry Guinea medical and Surgical Emergency Department of the Donka National Hospital Conakry Guinea

Introduction: Fever is a high core temperature ≥ 37.5°C in the morning and 37.8°C in the evening. It is acute when it evolves from 0 to 20 days. Very common in clinical practice, the etiological diagnosis, particularly in developing and tropical countries, is often a challenge for clinicians due to their diversity and the limited availability of diagnostic tools. There is a wide spectrum of etiological diagnoses including infectious causes and non-infectious causes. The aim of this study was to investigate the etiology of fevers acute at the medical unit in the medico-surgical emergency department of the Donka National Hospital. methods: This was a descriptive cross-sectional study lasting 03 months (January 01, 2022 to march 31, 2022). We included in this study all patients seen in the medical unit, whose age ≥ 18 years, without distinction of sex, from any origin, with an axillary temperature ≥ 37.5°C in the morning and 37.8°C in the evening, evolving from 0 to 20 days, hospitalized or followed on an outpatient basis, and having given verbal consent. Results: Of a total of 1087 patients seen, 466 had an acute fever. The mean age was 40.04 ± 18.91 years (18 and 96 years). The female sex (58.15%) was predominant with a sex ratio of 0.72. malaria (50.86%) was the main diagnosis. The treatment consisted of compressed paracetamol (59.01%), arthemether + lumefantrine (50.85%). Conclusion: The incidence of acute fevers is high in the medical unit of the medico-surgical emergency department of the Donka National Hospital. malaria was the main pathology. Treatment was etiological and symptomatic. This high incidence could be explained by the fact that Guinea is an endemic malaria zone. A study taking into account other etiological factors would be of great interest.

关键词： Acute Fever medical Unit Emergency Department Donka National Hospital (HND)

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Acute Fevers in the medical Unit of the medical-Surgical Emergency Department of the Donka National Hospital

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Open Journal of Internal medicine 2023年第2期

作者： Djibril Sylla Amadou Kake Thierno Amadou Wann mohamed Lamine Yaya Bah Akomou Lydia Koba mohamed Cirékeita mamadou Diakhaby Lansana Diaby Sèmèvo claudiane Toffon

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