Analysis of Terrestrial Vegetation Trends and Correlation Between Vegetation Indices and Climatic Factors

2020 ◽  
pp. 233-257
Author(s):  
Dhanapriya M. ◽  
Hiren P. Bhatt ◽  
Vyas S. P.
Keyword(s):  
Negative Correlation ◽  
Climatic Factors ◽  
Vegetation Indices ◽  
Net Radiation ◽  
Terrestrial Vegetation ◽  
Vegetation Growth ◽  
Positive Correlation ◽  
Crop Choice ◽  
Moderate Negative Correlation ◽  
Moderate Positive Correlation

The chapter analyzes terrestrial vegetation trends and correlation of vegetation indices with climatic factors like LST, Net Radiation, and TRMM. The result shows the positive vegetation trend might be due to the increased vegetation growth and productivity. Negative vegetation trend might be due to changes in a crop choice. Correlation of vegetation indices with climatic factors like LST showed weak to moderate positive correlation. Net radiation showed moderate negative correlation and TRMM showed a weak negative or positive correlation for both the Kharif and Rabi seasons.

scholarly journals Influence of environmental variables on diffusive greenhouse gas fluxes at hydroelectric reservoirs in Brazil

2013 ◽  
Vol 73 (4) ◽  
pp. 753-764 ◽  
Author(s):  
JP. Rogério ◽  
MA. Santos ◽  
EO. Santos
Keyword(s):  
Water Temperature ◽  
Greenhouse Gas ◽  
Negative Correlation ◽  
Environmental Variables ◽  
Ghg Emissions ◽  
Central Plateau ◽  
Positive Correlation ◽  
Hydroelectric Reservoirs ◽  
Moderate Negative Correlation ◽  
Moderate Positive Correlation

For almost two decades, studies have been under way in Brazil, showing how hydroelectric reservoirs produce biogenic gases, mainly methane (CH4) and carbon dioxide (CO2), through the organic decomposition of flooded biomass. This somewhat complex phenomenon is due to a set of variables with differing levels of interdependence that directly or indirectly affect greenhouse gas (GHG) emissions. The purpose of this paper is to determine, through a statistical data analysis, the relation between CO2, CH4 diffusive fluxes and environmental variables at the Furnas, Itumbiara and Serra da Mesa hydroelectric reservoirs, located in the Cerrado biome on Brazil's high central plateau. The choice of this region was prompted by its importance in the national context, covering an area of some two million square kilometers, encompassing two major river basins (Paraná and Tocantins-Araguaia), with the largest installed power generation capacity in Brazil, together accounting for around 23% of Brazilian territory. This study shows that CH4 presented a moderate negative correlation between CO2 and depth. Additionally, a moderate positive correlation was noted for pH, water temperature and wind. The CO2 presented a moderate negative correlation for pH, wind speed, water temperature and air temperature. Additionally, a moderate positive correlation was noted for CO2 and water temperature. The complexity of the emission phenomenon is unlikely to occur through a simultaneous understanding of all the factors, due to difficulties in accessing and analyzing all the variables that have real, direct effects on GHG production and emission.

scholarly journals Revealing Millennials’ Networks in Discussing Maritime Issues within the Triple Helix of University-Industry-Government

2021 ◽  
Vol 4 (2) ◽  
pp. 171
Author(s):  
Tatak Setiadi
Keyword(s):  
Human Resources ◽  
Negative Correlation ◽  
Triple Helix ◽  
Supply And Demand ◽  
Closeness Centrality ◽  
Eigenvector Centrality ◽  
Positive Correlation ◽  
Weak Negative Correlation ◽  
University Industry ◽  
Moderate Positive Correlation

Millennials' networks within the triple helix of University-Industry-Government show unusual communication structures and are challenging to be revealed. Using the direct and online written interview with the millennials found about 817 relations (edges) to 347 actors (nodes) in total. Analysis by Social Network Analysis (SNA) found: (1) the dominant issues of the maritime human resources are about future work prospects and specialties field, imbalance of supply and demand of maritime human resources, and improvement needed of industry's human resources (2) the dominant skill issue is capacity building and continuous learning, (3) the highest degree of centrality and closeness centrality has resulted from Industry, (4) the highest betweenness centrality and eigenvector centrality has resulted from University, (5) there is moderate positive correlation of ages to closeness centrality and weak negative correlation to eigenvector centrality, (6) there is a moderate positive correlation of education levels to closeness centrality, (7) there is a weak negative correlation of gender to eigenvector centrality, and (8) there is a statist relation of the triple helix in discussing maritime issues.

scholarly journals Intramammary antibiotics in dairy goats : effect of stage of lactation, parity and milk volume on withdrawal periods, and the effect of treatment on milk compositional quality

2007 ◽  
Vol 74 (3) ◽  
Author(s):  
J. Karzis ◽  
E.F. Donkin ◽  
I.M. Petzer
Keyword(s):  
Negative Correlation ◽  
Milk Fat ◽  
Animal Health ◽  
Cow Milk ◽  
Strong Positive Correlation ◽  
Withdrawal Period ◽  
Dairy Goats ◽  
Positive Correlation ◽  
Stage Of Lactation ◽  
Moderate Negative Correlation

The length of the antibiotic withdrawal period after intramammary treatment was influenced by the milk yield of dairy goats during this trial. Shorter withdrawal periods were seen in relatively high yielding dairy goats (production above 1.5 ℓ per day) compared to low producers (less than 1.3 ℓ per day). High yielding goats treated with Curaclox LC (Norbrook [Pharmacia AH]) had a withdrawal period of 42 h, while low yielding goats, treated with the same product, had a withdrawal period of 74 h. The recommended withdrawal period for Curaclox LC for use in cattle is 72 h. Relatively high yielding goats treated with Rilexine 200 LC (Logos Agvet [Virbac]) had a significantly shorter withdrawal period (37 h) than that recommended for use in cattle (96 h). Low yielding goats treated with Spectrazol Milking Cow (Schering-Plough Animal Health) had a significantly longer (95 h) withdrawal period than that recommended for use in cattle (60 h). Withdrawal periods were also influenced by stage of lactation and parity. There was a moderate positive correlation between lactation number and withdrawal period, as measured by TRIS (R2 = 0.621), and a moderate negative correlation between stage of lactation and withdrawal period (R2 = -0.669). In Trials 1, 2 and 3 combined there was a moderate negative correlation between withdrawal period and volume (R2 = -0.511) and a strong positive correlation between withdrawal period and lactation number (R2 = 0.720). The differences in percentage milk fat, protein and lactose before, during and after treatment were not statistically significant except in Trial 3 (Curaclox LC and Rilexine 200 LC) where protein and lactose differed significantly. In Trial 2 (Spectrazol Milking Cow) milk fat percentages differed significantly between treatment and control groups as did protein percentages in Trial 3. These differences are however, not biologically meaningful.

Cumulative Effects of Climatic Factors on Terrestrial Vegetation Growth

2019 ◽  
Vol 124 (4) ◽  
pp. 789-806 ◽  
Author(s):  
Youyue Wen ◽  
Xiaoping Liu ◽  
Qinchuan Xin ◽  
Jin Wu ◽  
Xiaocong Xu ◽  
...  
Keyword(s):  
Climatic Factors ◽  
Cumulative Effects ◽  
Terrestrial Vegetation ◽  
Vegetation Growth

P1480MOVING TOWARDS OBJECTIVE ASSESSMENT OF FLUID STATUS IN HEMODIALYSIS PATIENTS

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
GARYFALIA PERYSINAKI ◽  
ANDREAS-MICHAHL PASSAM ◽  
PANAGIOTA PAPADAKI ◽  
GEORGIOS VLACHOPANOS ◽  
IRINI NTAOUNTAKI
Keyword(s):  
Negative Correlation ◽  
End Stage Renal Disease ◽  
Significant Negative Correlation ◽  
Tissue Mass ◽  
Fluid Status ◽  
Adipose Tissue Mass ◽  
Moderate Negative Correlation ◽  
Stage Renal Disease ◽  
End Stage ◽  
Moderate Positive Correlation

Abstract Background and Aims Correct estimation of the fluid status as represented by the “Dry body weight” (DBW) of hemodialysis (HD) patients is crucial for their cardiovascular health and general well-being. However, DBW assessment through medical history and physical examination by the attending nephrologist may not prove sufficiently accurate. Bioimpedance measurements may offer a more accurate assessment of DBW. Therefore we compared clinical DBW estimation with DBW estimation by bioimpedance. We searched for variables which may correlate with differences between the two methods. Method Observational, single center cross sectional study. Fifty HD patients (32 males) consented to participate. Laboratory, clinical and epidemiological data were drawn from the medical records. Bioimpedance measurements were performed by the Body Composition Monitor (Fresenius Medical Care) before a mid- week hemodialysis session and were compared with parallel DBW estimations based on medical history and physical examination. A variable “difference DBW” was derived from the difference between the two parallel estimations of DBW (“difference DBW” = clinical DBW estimation – bioimpedance DBW measurement). Univariate and bivariate correlation analyses were used. Results The mean age, years in end stage renal disease (ESRD), Kt/V, serum albumin, body mass index (BMI), lean tissue index (LTI), and adipose tissue mass (ATM) of the participants were 66.8±13.878y, 8±8.132y, 1.48±0.269, 3.8±0.313g/dL, 27.97±4.595, 13.26±3.982, 37.32±13.159Kg respectively. DBW estimated by the nephrologists was significantly lower (72.94 ± 14.637 kg) than DBW estimated by bioimpedance (74.82 ± 15.594 kg), a decrease of 1.882 (95% CI, -2.425 to -1.339kg), t(49) = -6.963, p < 0.001. Significant negative correlation was found between “difference DBW” and BMI r(48) =-0.69, p<0.001. Moderate negative correlation was found between “difference DBW” and LTI r(48) = -0.42, p=0.002, and between “difference DBW” and ATM, r(48) = -0.41, p=0.003. Moderate positive correlation was found between “difference DBW” and years in ESRD r(48) = 0.43, p=0.002. There were no significant correlations between sex, age and “difference DBW”. Conclusion In our cohort there were significant differences between clinical DBW estimations and corresponding Bioimpedance DBW measurements. This difference was more pronounced in patients with low BMI and ATM, as well as in patients with more years on ESRD. Therefore we consider that these findings should be taken into consideration when determining DBW. Figure SEQ Εικόνα \* ARABIC 1 Scatterplots (A) Significant negative correlation between “difference DBW” and BMI r(48) =-0.69, p<0.001. (B) Moderate negative correlation between “difference DBW” and ATM, r(48) = -0.41, p=0.003. (C) Moderate positive correlation between “difference DBW” and years in ESRD r(48) = 0.43, p=0.002. DBW: dry body weight, BMI: body mass index, ATM: adipose tissue mass, ESRD: end stage renal disease

scholarly journals Relações entre esportividade e traços de personalidade de esportistas eletrônicos amadores do Rio de Janeiro (Relationship between sportsmanship and personality traits of amateur electronic sportsmen from Rio de Janeiro) (Relaciones entre deportividad y

Retos ◽  
2020 ◽  
pp. 537-542
Author(s):  
Dirceu Ribeiro Gama ◽  
Marcel Amaral De Queiroz ◽  
Matheus Cristino Cordeiro ◽  
Jean Marinho Eftimie ◽  
Rodrigo Souza Vale
Keyword(s):  
Personality Traits ◽  
Rio De Janeiro ◽  
Eysenck Personality Questionnaire ◽  
Personality Questionnaire ◽  
Positive Correlation ◽  
Moderate Negative Correlation ◽  
The Relationship ◽  
Spearman’S Correlation ◽  
Moderate Positive Correlation ◽  
Janeiro City

Resumo: O objetivo deste estudo foi analisar as relações entre esportividade e traços de personalidade de esportistas eletrônicos amadores do Rio de Janeiro. A amostra foi composta de 36 esportistas eletrônicos amadores, todos residentes na cidade do Rio de Janeiro. Os instrumentos para coleta de dados foram o Questionário de Personalidade de Eysenck; Questionário de Atitudes no Esporte; e um questionário suplementar de cunho sociodemográfico. O teste de correlação de Spearman mostrou uma correlação negativa moderada da variável idade com os traços de personalidade Psicoticismo (rho= -0,424; p= 0,010) e Neuroticismo (rho= -0,386; p= 0,020), e com a dimensão Convenção (rho= -0,452; p= 0,006). A variável anos de jogo exibiu correlação positiva moderada com a dimensão Antidesportivismo (rho= 0,410; p= 0,013). A variável horas semanais praticadas também acusou uma correlação positiva moderada com o Antidesportivismo (rho= 0,345; p= 0,039). Observou-se uma correlação positiva moderada entre o Psicoticismo e a dimensão Convenção (rho= 0,360; p= 0,031). A Extroversão correlacionou-se positiva e moderadamente com a dimensão Trapaça (rho= 0,351; p= 0,036). O Neuroticismo e as dimensões Empenho (rho= 0,372; p= 0,025) e Convenção (rho= 0,447 p= 0,006) correlacionaram-se de modo positivo e moderado. Conclui-se que os graus de esportividade de esportistas eletrônicos estão relacionados a determinados traços de personalidade.Abstract: The aim of this study was to analyze the relationship between sportsmanship and personality traits of amateur electronic sportsmen from Rio de Janeiro. The sample consisted of 36 amateur electronic sportsmen, all residents at Rio de Janeiro city. The instruments for data collection were the Eysenck Personality Questionnaire; the Sport Attitudes Questionnaire; and a supplementary sociodemographic questionnaire. Spearman's correlation test showed a moderate negative correlation between the age variable and the personality traits Psychoticism (rho= -0,424; p= 0,010) and Neuroticism (rho= -0,386; p= 0,020), and the Convention dimension (rho= -0,452; p= 0,006). The variable years of practice exhibited moderate positive correlation with the dimension Unsportsmanship (rho= 0,410; p= 0,013). The variable hours per week practiced also showed a moderate positive correlation with Unsportsmanship (rho= 0,345; p= 0,039). There was a moderate positive correlation between Psychoticism and the Convention dimension (rho= 0,360; p= 0,031). Extroversion correlated positively and moderately with the Cheat dimension (rho= 0,351; p= 0,036). Neuroticism and the Commitment (rho= 0,372; p= 0,025) and Convention (rho= 0,447 p= 0,006) dimensions were correlated positively and moderately. One concludes that the sportsmanship levels of electronic sportsmen are related to certain personality traits.Resumen: El objetivo de este estudio fue analizar la relación entre deportividad y rasgos de personalidad de deportistas electrónicos amadores de Río de Janeiro. La muestra consistió en 36 deportistas electrónicos amadores, todos residentes en la ciudad de Río de Janeiro. Los instrumentos para la recolección de datos fueron el Cuestionario de personalidad de Eysenck; Cuestionario de actitudes deportivas; y un cuestionario sociodemográfico suplementario. La prueba de correlación de Spearman mostró una correlación negativa moderada de la variable edad con los rasgos de personalidad Psicoticismo (rho= -0,424; p= 0,010) y Neuroticismo (rho= -0,386; p= 0,020), y con la dimensión Convención (rho= -0,452; p= 0,006). La variable años de juego exhibiero una correlación positiva moderada con la dimensión Antideportividad (rho= 0,410; p= 0,013). Las horas semanales practicadas también mostraron una correlación positiva moderada con la Antideportividad (rho= 0,345; p= 0,039). Hubo una correlación positiva moderada entre el Psicoticismo y la dimensión de la Convención (rho= 0,360; p= 0,031). La Extroversión se correlacionó positiva y moderadamente con la dimensión Trapaza (rho= 0,351; p= 0,036). El Neuroticismo y las dimensiones de Empeño (rho= 0,372; p= 0,025) y Convención (rho= 0,447 p= 0,006) se correlacionaron positiva y moderadamente. Se concluye que los grados de Deportividad de los deportes electrónicos están relacionados con ciertos rasgos de personalidad.

scholarly journals Correlation between pain and hyalinization during tooth movement induced by different types of force

2019 ◽  
Vol 89 (5) ◽  
pp. 788-796 ◽  
Author(s):  
Osmar A. Cuoghi ◽  
Francielle Topolski ◽  
Lorraine P. de Faria ◽  
Edilson Ervolino ◽  
Kelly R. Micheletti ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Interleukin 1 ◽  
Control Group ◽  
Positive Correlation ◽  
Male Wistar Rats ◽  
Moderate Negative Correlation ◽  
Cox 2 ◽  
Tissue Reactions ◽  
Moderate Positive Correlation ◽  
Chemical Mediators

ABSTRACT Objectives: To evaluate the correlation between pain and tissue reactions during induced tooth movement (ITM). Materials and Methods: Forty-two male Wistar rats (Rattus norvegicus; ∼90 days of age, 300 g) were used. The animals were divided into seven groups of six rats each: one control group and six experimental groups subjected to ITM by continuous force (CF) or interrupted continuous force (ICF) for 1, 3, and 5 days. Hyalinization of the periodontal ligament (PL) and occurrence of pain were observed. Animal behavior (walking, climbing, immobile posture, resting/sleeping, and directed face grooming) and the presence of chemical mediators associated with nociception, cyclooxygenase-2 (COX-2), and interleukin-1 beta (IL-1β) in the PL were analyzed. Results: There was a moderate positive correlation between hyalinization and the presence of COX-2 (rs = 0.404; P < .05) and IL-1β (rs = 0.429; P < .05). There was a moderate negative correlation between hyalinization and exploratory behaviors (walking, r = −0.586, P < .01; climbing, r = −0.573, P < .01), and a moderate positive correlation between hyalinization and resting/sleeping (r = 0.467; P < .01). Conclusions: The results suggest a correlation between pain and undesirable tissue reactions in ITM.

Correlation of Phraseological Semantic Fields in Russian Study of Aphorisms

2020 ◽  
pp. 60-71
Author(s):  
Anshelika Korolkova
Keyword(s):  
Negative Correlation ◽  
Semantic Field ◽  
Positive Correlation ◽  
Classical Study ◽  
Semantic Fields ◽  
Zero Correlation ◽  
Russian Study

The article deals with the interconnection and interdependence of phraseological semantic fields of Russian study of aphorisms in synchronic and in diachronic approaches. The correlation of phraseological semantic fields of Russian study of aphorisms is considered as their interdependence due to various factors (linguistic and extra-linguistic ones). The correlation of the phraseological semantic fields of Russian study of aphorisms is manifested in the existence of many antinomies. The natural linguistic antinomies of life / death / immortality or war / peace, or good / evil, or friend / enemy, or villainy / nobility are reflected in Russian aphorisms and have entered the corresponding phraseological semantic fields. The corpus of Russian study of aphorisms containsnot only antinomic aphorisms, but also antinomic relations that extend to the level of language and speech. Therefore, in Russian study of aphorisms there are phraseological semantic fields that implement these antinomies. In addition to the antinomic phraseological semantic fields in the corpus of classical Russian study of aphorisms there are other types of correlations. The keywords (concepts) of many phraseological semantic fields are closely thematically connected. When the number of units from one field is changed, the number of units in another phraseological semantic field also changes. Most phraseological semantic fields of Russian study of aphorisms do not show a zero correlation in either synchronic or diachronic approaches. This is due to, first of all, the universality of the aphoristic theme, with all the ideological and thematic uniqueness of the sayings used by Russian writers. However, a few phraseological and semantic fields of aphorisms by Russian writers may show a negative correlation, which is due to the diversity of the thematic groups that comprise them. A positive correlation of phraseological semantic fields, the most significant in the number of their constituent components, shows deep internal linguistic systemic connections in Russian classical study of aphorisms.

scholarly journals CT density of cervical thymus, in comparison with mediastinal thymus

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Anitha Sen ◽  
Jiji Valsalamony ◽  
Jubie Raj
Keyword(s):  
Young Adults ◽  
Soft Tissue ◽  
Older Age ◽  
List Type ◽  
Age Group ◽  
Positive Correlation ◽  
Children And Young Adults ◽  
Criteria For Diagnosis ◽  
Ct Density ◽  
Moderate Positive Correlation

Abstract Objectives Cervical component of thymus is noted more in children and young adults than in older age group. CT texture (lobules of soft tissue interspersed with fat), similarity with CT density of mediastinal thymus and continuity with mediastinal thymus on sagittal/coronal images, are given as the criteria for diagnosis of the cervical thymus. But CT densities of cervical and mediastinal components of the thymus may vary. The purpose of our study was to compare CT densities of cervical and mediastinal parts of the thymus, in cases where ultrasonography correlation was available. Methods We retrospectively identified 22 patients who had undergone CT between May 2015 and May 2017 and in whom ultrasonography (USG) correlation was available. CT densities of cervical and mediastinal components of thymus were measured. Results CT density of cervical thymus is lower than the CT density of mediastinal thymus by ~ 25 HU. There is a moderate positive correlation between CT densities of cervical and mediastinal parts of the thymus. CT densities of both cervical and mediastinal thymus were found to reduce with age, but the reduction was statistically significant only in the cervical thymus in this study. Conclusions CT densities of cervical and mediastinal components of the thymus may vary, with CT density of cervical thymus being lower. There is a positive correlation between CT densities of cervical and mediastinal parts of the thymus. CT density of cervical thymus reduces with age. Understanding these may help avoid confusion on CT and avoid the need for correlative USG, saving time and effort.

scholarly journals Correlates of SARS-CoV-2 Variants on Deaths, Case Incidence and Case Fatality Ratio among the Continents for the Period of 1 December 2020 to 15 March 2021

Genes ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 1061
Author(s):  
Wajdy J. Al-Awaida ◽  
Baker Jawabrah Al Hourani ◽  
Samer Swedan ◽  
Refat Nimer ◽  
Foad Alzoughool ◽  
...  
Keyword(s):  
Negative Correlation ◽  
Significant Positive Correlation ◽  
Vaccine Development ◽  
Case Fatality ◽  
Significant Negative Correlation ◽  
Reference Sequence ◽  
Genome Sequences ◽  
Positive Correlation ◽  
Case Fatality Ratio ◽  
Epidemiological Surveys

The outbreak of coronavirus disease 2019 (COVID-19), by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has quickly developed into a worldwide pandemic. Mutations in the SARS-CoV-2 genome may affect various aspects of the disease including fatality ratio. In this study, 553,518 SARS-CoV-2 genome sequences isolated from patients from continents for the period 1 December 2020 to 15 March 2021 were comprehensively analyzed and a total of 82 mutations were identified concerning the reference sequence. In addition, associations between the mutations and the case fatality ratio (CFR), cases per million and deaths per million, were examined. The mutations having the highest frequencies among different continents were Spike_D614G and NSP12_P323L. Among the identified mutations, NSP2_T153M, NSP14_I42V and Spike_L18F mutations showed a positive correlation to CFR. While the NSP13_Y541C, NSP3_T73I and NSP3_Q180H mutations demonstrated a negative correlation to CFR. The Spike_D614G and NSP12_P323L mutations showed a positive correlation to deaths per million. The NSP3_T1198K, NS8_L84S and NSP12_A97V mutations showed a significant negative correlation to deaths per million. The NSP12_P323L and Spike_D614G mutations showed a positive correlation to the number of cases per million. In contrast, NS8_L84S and NSP12_A97V mutations showed a negative correlation to the number of cases per million. In addition, among the identified clades, none showed a significant correlation to CFR. The G, GR, GV, S clades showed a significant positive correlation to deaths per million. The GR and S clades showed a positive correlation to number of cases per million. The clades having the highest frequencies among continents were G, followed by GH and GR. These findings should be taken into consideration during epidemiological surveys of the virus and vaccine development.

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