scholarly journals Impact of meteorological parameters on the Covid-19 incidence. The case of the city of Oran, Algeria.

2020 ◽  
Author(s):  
Farid RAHAL ◽  
Salima REZAK ◽  
Fatima Zohra BABA HAMED
Keyword(s):  
Meteorological Parameters ◽  
Rank Correlation ◽  
Weather Conditions ◽  
Spearman Rank Correlation ◽  
First Case ◽  
Maximum Temperatures ◽  
Autumn And Winter ◽  
The Impact ◽  
The City ◽  
Spearman Rank Correlation Test

Several studies have confirmed the impact of weather conditions on the evolution of the Covid-19 pandemic. We wanted to verify this phenomenon in the city of Oran in Algeria, which experienced its first case of Covid19 on March 19, 2020. The data studied are the new Covid19 cases, the average, minimum and maximum temperatures, as well as the relative humidity rate. A first analysis of the data with a Spearman rank correlation test did not yield significant results. Taking into account the average incubation period to adjust the data made it possible, during a second analysis, to show that the minimum temperature is significantly correlated with the new cases of Covid19 in Oran. This study can help establish prevention policies against Covid19, especially during fall in temperatures in autumn and winter.

scholarly journals Impact of weather indicators on the COVID-19 outbreak: A multi-state study in India

2020 ◽  
Author(s):  
Kuldeep Singh ◽  
Aryan Agarwal
Keyword(s):  
Preventive Measures ◽  
Rank Correlation ◽  
Weather Conditions ◽  
Spearman Rank Correlation ◽  
Average Temperature ◽  
State Study ◽  
Correlation Tests ◽  
To Come ◽  
The Impact ◽  
Very High

AbstractThe present study examines the impact of weather indicators on the COVID-19 outbreak in the majorly affected states of India. In this study, we hypothesize that the weather indicators could significantly influence the impact of the corona virus. The Kendall and Spearman rank correlation tests were chosen to conduct the statistical analysis. In this regard, we compiled a daily dataset including confirmed case counts, Recovered case counts, Deceased cases, Average Temperature, Maximum Relative Humidity, Maximum Wind Speed for six most affected states of India during the period of March 25, 2020 to April 24, 2020. We investigated that the average Humidity and Average Temperature seven days ago play a significant role in the recovery of coronavirus cases. The rise in average temperature will improve the recovery rate in the days to come. The cities with very high humidity levels or dry weather conditions have high probabilities of recovery from COVID-19. The findings of this research will help the policymakers to identify risky geographic areas and enforce timely preventive measures.

scholarly journals Patterns of Changes in Average Annual Water Temperatures of the Rivers of the Arctic Zone of Russia Associated with Climate Changes

2020 ◽  
pp. 8-22
Author(s):  
Keyword(s):  
Climate Changes ◽  
Rank Correlation ◽  
The Arctic ◽  
Hydroelectric Power ◽  
Spearman Rank Correlation ◽  
Hydrological Characteristics ◽  
Power Stations ◽  
Annual Water ◽  
Spearman Rank Correlation Test ◽  
Annual Water Temperature

The paper considers changes in temperature regime of rivers flowing northerner than 60th latitude. The investigation bases on data about average monthly water temperatures from 90 hydrological gages for the period 1960-2012. Annual water temperatures for this period were calculated according to the generally accepted method as average monthly temperature from May to September and according to the proposed in this paper calculation method for the entire period with positive water temperatures. It is shown that the calculation of annual water temperatures only from the average monthly temperatures from May to October, underestimates annual water temperature. The paper estimates changes in the average annual water temperatures calculated by both methods over the period 1991–2012 compared to 1961-1990 These periods cover intensive climate change, as well as the time after the construction of the largest hydroelectric power stations. Statistical analyzes of the obtained series for trends (according to the Spearman rank correlation test) and series uniformity disturbances (Mann-Whitney U-test) were carried out. A significant increase in the average annual water temperatures in rivers on most rivers of the Russian Arctic is shown. The greatest changes are observed in the territories of Yakutia. Significant changes are also noted on the Kola Peninsula. At the same time, the magnitude of the changes depends on various hydrological characteristics of the basin. Significant changes to date have occurred in less than 50% of the investigated rivers.

scholarly journals Impacts of some meteorological parameters on the SO2 concentrations in the city of Obrenovac, Serbia

2010 ◽  
Vol 75 (5) ◽  
pp. 703-715 ◽  
Author(s):  
Snezana Nenadovic ◽  
Ljiljana Matovic ◽  
Misko Milanovic ◽  
Sava Janicevic ◽  
Jasmina Grbovic-Novakovic ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Power Plants ◽  
Meteorological Parameters ◽  
North West ◽  
Wind Speeds ◽  
The North ◽  
West Part ◽  
Measuring Site ◽  
The Impact ◽  
The City

In this paper, the impacts of some meteorological parameters on the SO2 concentrations in the City of Obrenovac are presented. The City of Obrenovac is located in the north-west part of Serbia on the banks of the River Sava. The observed source emission, the power plants TENT A and TENT B are situated on the bank of the Sava River in the vicinity of Obrenovac. During the period from January to November 2006, the concentrations of sulfur dioxide in the air at 4 monitoring sites in Obrenovac were measured. It was noticed that the maximal measured daily concentrations of sulfur dioxide ranged from 1 ?g/m3 (16th November, 2006) to 98 ?g/m3 (29th January 2006) and lie under the maximal allowed concentration value according to the Serbian Law on Environmental Protection. The measured sulfur dioxide concentrations mostly showed characteristics usual for a daily acidification sulfur dioxide cycle, excluding the specificities influenced by the measuring site itself. Sulfur dioxide transport was recorded at increased wind speeds, primarily from the southeast direction. Based on the impact of meteorological parameters on the sulfur dioxide concentration, a validation of the monitoring sites was also performed from the aspect of their representivity.

scholarly journals Exogenous Testosterone Does Not Influence 11-Oxygenated C19 Steroid Concentrations in Healthy Postmenopausal Women

2019 ◽  
Vol 3 (3) ◽  
pp. 670-677 ◽  
Author(s):  
Susan R Davis ◽  
Adina F Turcu ◽  
Penelope J Robinson ◽  
Robin J Bell
Keyword(s):  
Postmenopausal Women ◽  
Correlation Coefficient ◽  
Rank Correlation ◽  
Serum Testosterone Level ◽  
Controlled Clinical Trial ◽  
Spearman Rank Correlation ◽  
Testosterone Therapy ◽  
Spearman Rank ◽  
The Impact ◽  
Spearman Rank Correlation Coefficient

Abstract Context 11β-Hydroxyandrostenedione (11OHA4), 11β-hydroxytestosterone (11OHT), and their respective peripheral derivatives, 11-ketoandrostenedione (11KA4) and 11-ketotesosterone (11KT), have been implicated in androgen-related physiopathology. Little is known of these steroids in postmenopausal women or whether exogenous testosterone therapy influences their levels. Objective The impact of exogenous testosterone on serum levels of 11-oxygenated steroids was determined in healthy postmenopausal women. Participants and Methods Levels of 19-carbon (C19) steroids were measured by liquid chromatography–tandem mass spectrometry in serum obtained at baseline and at 12 and 26 weeks from 73 healthy postmenopausal women, aged 55 to 65 years, who participated in a randomized, double-blind, placebo-controlled clinical trial assessing the effects of transdermal testosterone on cognitive performance. Results Of the 11-oxygenated androgens, 11OHA4 was the most abundant (median, 6.46 nmol/L; range, 1.51 to 23.82 nmol/L), with concentrations several fold greater than its precursor androstenedione (median, 1.38 nmol/L; range, 0.52 to 2.92 nmol/L). Baseline median (range) testosterone and 11KT levels were similar [0.56 (0.23 to 1.48) nmol/L; 0.85 (0.25 to 2.86) nmol/L, respectively). 11OHT was closely correlated with 11KT (Spearman rank correlation coefficient, 0.79; P < 0.001) and 11OHA4 correlated with 11KA4 (Spearman rank correlation coefficient, 0.73; P < 0.001). Testosterone therapy resulted in an increase in serum testosterone level, whereas all 11-oxygenated androgens remained unchanged throughout the 26 weeks of treatment. Conclusion After menopause, the adrenal production of 11-oxygenated derivatives of androstenedione and testosterone contributes importantly to the total circulating androgen pool. Exogenous testosterone does not influence the circulating levels 11-oxygenated C19 steroids.

scholarly journals Dampak Kabut Asap terhadap Kinerja Usaha Pedagang Pasar di Kota Rengat Kabupaten Indragiri Hulu Provinsi Riau

2020 ◽  
Vol 5 (1) ◽  
pp. 167
Author(s):  
Ivalaina Astarina ◽  
Syahmardi Yacob ◽  
Febblina Daryanes ◽  
Khusnul Fikri ◽  
Ahmad Ramadhan
Keyword(s):  
Weather Conditions ◽  
Measurement Scales ◽  
Descriptive Research ◽  
Learning Tasks ◽  
Analysis Technique ◽  
Sample Count ◽  
Education Of Students ◽  
The Impact ◽  
The City

The purpose of the research in IIS to know and analyze the impact of the haze on the performance of business traders market. This research belongs to the type of descriptive research. Descriptive research that aims to describe, describe and analyse existing events and aims to obtain information about the impact of haze in accordance with existing theories. Data collection method through dissemination of questionnaires and questions answered. The population in this study is the market merchant of Rengat City. Determination of sample count of 100 respondents/market trader. The data analysis technique used to analyze this research data is to be descriptively used statistical analysis in the form of a percentage formula because its purpose is to see the trend of the indicators of each variable and the research is only aimed to describe the reality in the field is not to be seen relations or comparisons. In this study, researchers used Likert measurement scales. The Likert scale relates to a statement about a person's attitude toward something.  The results of this study can be concluded that: (1) The health of the market traders of the city of Rengat is interrupted because of the thick haze that affects the trading activity itself. (2) The income of market traders in the city of Rengat is decreasing due to declining people's desire to shop in the market due to the worry of being exposed to haze which can cause ISPA disease and other health disorders. (3) The market environment of the Rengat is affected by the smoke of the daily Trader's life. Usually traders have already held their trades starting from the beginning of the morning, because the haze of most traders often come late to the market (overdo). (3) The education of students from the family of market traders in the city of Rengat is also affected by the haze so that it must be dissolved until normal weather conditions are back. Because of this, students have a lot of missed material and have to force themselves to pursue the lag by adding hours and learning tasks that are much beyond the student's thinking capacity.

scholarly journals HUBUNGAN FENOMENA GROUPTHINK DENGAN GAYA KEPEMIMPINAN KETUA RT DI DESA CIKARAWANG

2019 ◽  
Vol 17 (1) ◽  
pp. 28-37
Author(s):  
Distra Asniar Asniar ◽  
Sarwititi Sarwoprasodjo
Keyword(s):  
Leadership Styles ◽  
Leadership Style ◽  
Qualitative Data ◽  
Rank Correlation ◽  
Spearman Rank Correlation ◽  
Causal Factors ◽  
Group Members ◽  
Relationship Of ◽  
The Relationship ◽  
Spearman Rank Correlation Test

Neighborhood activities are a process that can be used to see the level of group members' participation, often member participation is influenced by several things, such as groupthink phenomenon and group leader leadership style. The purpose of this study was to: (1) identify groupthink causal factors in groups, (2), identify leadership styles found in neighborhood, and (3) analyze the relationship of leadership style with groupthink phenomena in groups. This study uses a quantitative approach supported by qualitative data with 30 neighborhood as respondents. The subjects of this study were neighborhood groups located in Cikarawang Village, Dramaga District, Bogor Regency. Analysis of research data using the Spearman rank correlation test. The results show that there was no relationship between the leadership style of the chair and groupthink phenomena in the neighborhood activities. This condition influences the neighborhood leader dominant leadership style is laissez faire, so it has no relation to the decline in criticism of neighborhood members in groupthink phenomena.

scholarly journals El polen de Poaceae en la atmósfera de Lugo y su relación con los parámetros meteorológicos (1999-2001).

2002 ◽  
Vol 27 ◽  
pp. 49-63 ◽  
Author(s):  
F. Javier Rodríguez-Rajo ◽  
M. Victoria Jato ◽  
M. Jesús Aira
Keyword(s):  
Pollen Season ◽  
Meteorological Parameters ◽  
Maximum Temperature ◽  
Daily Maximum ◽  
Main Pollen Season ◽  
Pollen Concentrations ◽  
Poaceae Pollen ◽  
Annual Total ◽  
Maximum Temperatures ◽  
The City

RESUMEN. El polen de Poaceae en la atmósfera de Lugo y su relación con los parámetros meteorológicos (1999-2001). Se han estudiado las concentraciones de polen de Poaceae presente en la atmósfera de la ciudad de Lugo durante 3 años (1999-2001). Para ello se ha utilizado un captador volumétrico tipo Hirst, modelo Lanzoni VPPS-2000. El polen de Poaceae es el más abundante y su porcentaje frente al total de polen anual es de un 38-40%. La cantidad total de polen anual es de 8.400 granos como resultado de la media de los tres años de estudio, con un período de polinización durante los meses de Junio y Julio. A lo largo del día los máximos de concentración tienen lugar durante la tarde. Se ha realizado un análisis de correlación con los principales parámetros meteorológicos, siendo la temperatura máxima la variable que presentó el coeficiente más elevado. La suma acumulada de la temperatura máxima y la regresión múltiple integrando la temperatura máxima y las concentraciones de polen del día anterior como estimadores, resultaron métodos válidos y complementarios para realizar la predicción del inicio del periodo de polinización y de las concentraciones medias diarias que se alcanzan durante el periodo de polinización principal respectivamente.Palabras clave. Polen, Lugo, Meteorología, Predicción, lntradiario, Poaceae.ABSTRACT. The Poaceae pollen in the atmosphere of Lugo and its relationship with meteorological parameters ( 1999-2001). The pollen concentrations of Poaceae in the atmosphere of the city of Lugo has been studied during 3 years (1999-2001). A volumetric sampler type Hirst, model Lanzoni VPPS-2000 has been used. The Poaceae pollen is the most abundant and its percentage with respect to the total annual pollen ranged from 38-40 %. The annual total quantity of pollen of Poaceae were 8.400 grains as average of the three years studied, with a period of pollination during the months of June and July. The daily maximum concentrations take place during the evening. An analysis of correlation has been carried out between pollen concentrations and the main meteorological parameters, the maximum temperature being the variable that presented the highest coefficient value. The sum of maximum temperatures and the multiple regression integrating maximum temperature and pollen concentrations of the previous day as predictors, were successful and complementary methods in order to predict the beginning of the pollination period and the daily mean concentrations reached during the main pollen season respectively.Key words. Pollen, Lugo, Meteorology, Prediction, Intradiurnal, Poaceae.

scholarly journals Cardiovascular risk assessment of the population under adverse weather conditions

2020 ◽  
Vol 99 (5) ◽  
pp. 488-492
Author(s):  
R. B. Tsallagova ◽  
O. I. Kopytenkova ◽  
Fatima K. Makoeva ◽  
A. R. Nanieva
Keyword(s):  
Negative Impact ◽  
Adult Population ◽  
Medical Science ◽  
Weather Conditions ◽  
Air Pressure ◽  
Medical Documentation ◽  
Atmospheric Air ◽  
Adverse Weather ◽  
The Impact ◽  
The City

Introduction. Climate change around the world determines the relevance of the study of its effects on the human health. Nowadays, due to the development of modern medical science, the methods of evidence-based analysis of negative impact of the environmental factors on the public health are being widely implemented into preventive medicine. Their use should make it possible to quantify the various risks with high confidence and to manage them effectively. Material and methods. The weather conditions of the territory of Vladikavkaz for a 15-years period (2001-2015) have been studied. On the basis of the data from the primary medical documentation of emergency medical care (EMC) for the same period, the health status of the adult population in the city has been studied. The impact of the meteorological elements under the study on the frequency of seeking EMC was estimated using the relative (RR) and population risks (Rpop) values. Results. For the city of Vladikavkaz (according to the medical classification of weather conditions), high air humidity is typical for 65% of the days in a year, low air velocity (less than 3 m/s) - 77% of the days in a year. Inter-day fluctuations in temperature and atmospheric air pressure, exceeding the optimal levels for the human body, are recorded more than in 30% of the days in a year. Discussion. The city of Vladikavkaz is characterized by windless, wet weather, with frequent inter-day fluctuations in temperature and atmospheric air pressure, which corresponds to the clinically irritating and acute types of weather. Conclusion. The calculations of the relative and the population risks of impact of meteorological changes on the developing of urgent cardiovascular conditions in the population of Vladikavkaz showed RR of combining two unfavourable weather factors to be of 1.081 (p <0.0001), and the Rpop increases by more than 3600 additional EMC calls due to cardiovascular pathology.

scholarly journals SPATIAL ANALYSIS OF TUBERCULOSIS, POPULATION AND HOUSING DENSITY IN YOGYAKARTA CITY 2017-2018

2021 ◽  
Vol 3 (1) ◽  
pp. 28
Author(s):  
Muthia Ardiyanti ◽  
Sulistyawati Sulistyawati ◽  
Yudha Puratmaja
Keyword(s):  
Spatial Analysis ◽  
Ecological Study ◽  
Rank Correlation ◽  
Secondary Data ◽  
P Value ◽  
Spearman Rank Correlation ◽  
Housing Density ◽  
Gis Software ◽  
Spearman Rank Correlation Test ◽  
Yogyakarta City

Background: Tuberculosis (TB) is an infectious disease that becomes a health problem globally, including in Indonesia. Yogyakarta City is a district that struggle with TB; from 2017-2018, there was an increase of TB case in this city. There was limited evidence concerning TB and its possible risk factors among TB case 2017-2018, mainly using GIS in Yogyakarta.Methods: This study used an ecological study design to determine the correlation between population and housing density with TB incidence in Yogyakarta City in 2017-2018. Secondary data was obtained from the Yogyakarta City Health Profile 2018-2019.  Spearman rank correlation test and spatial analysis using Quantum GIS software were employed to analyse the data.Results: There was a relationship between TB and population density variables (p-value = 0.034; R = -0.568) and housing density (p-value = 0.012; R = -0.625) in Yogyakarta, 2017-2018.Conclusions: This study indicates that the density of housings and population affect the prevalence of Tuberculosis.

Sign in / Sign up

Export Citation Format

Share Document