نتایج جستجو برای: 15 until water year 2023
تعداد نتایج: 1670922 فیلتر نتایج به سال:
OBJECTIVES The most effective method to prevent caries is the regular use of fluoride toothpaste. The aim of this study was to evaluate self-care routines in a population by identifying knowledge, attitudes and behaviour relating to fluoride toothpaste and toothbrushing habits. METHODS A questionnaire was sent to 3200 individuals in two municipalities in Sweden. Four age groups representing d...
In this paper, an intervention analysis approach was applied to daily cases of COVID-19 in Nigeria order evaluate the utilization and effect vaccine administered country. Data on report were collected subjected two models: naïve solution interrupted time series (the model). Based Alkaike Information Criterion (AIC), sigma2, log likelihood values, model outperformed Naïve model. ARIMA (4, 1, 4) ...
David P. Calleo, who died on 15 June 2023 at the age of 88, was one most original scholars his generation subjects ranging from international economy to US foreign policy, transatlantic relations, European politics and history ideas. Dean Acheson Professor Studies Johns Hopkins University School Advanced International (SAIS), Calleo also, 2008 until just before death, a Contributing Editor Surv...
“Quina” (Strychnos pseudoquina A. St. Hil) is a medicinal plant species from the Brazilian Cerrado. As its seeds show dormancy, they were subjected to the treatments precooling at 5oC during 7 days, pre-heating at 40oC during 7 days, pre-soaking in sulfuric acid PA during 5 and 15 min, pre-soaking in boiling water during 5 and 15 min, pre-soaking in 100 and 200 ppm gibberellic acid during 48 h,...
Introduction: From the late 1960s until now, lunar soil particle size distributions have typically been determined by sieving—sometimes dry, and at other times with fluids such as water or Freon [1-15]. Laser diffraction instruments allow rapid assessment of particle size distribution, and eventually may replace sieve measurements. However, when measuring lunar soils with laser diffraction inst...
During the past 3 years we have carried out analyses of tissues for potassium in this laboratory using the separation by chloroplatinic acid. For 1 year potassium has been estimated by a Volhard titration of the chlorine in KzPtC16 separated by the usual procedure. Because the method seems more accurate and convenient than previous titrimetric methods, a description is warranted. SolulionsSolut...
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