scholarly journals Seasonal Variation of the Aerosol Light Scattering Coefficient in Marine Air of the Northeast Atlantic

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Aditya Vaishya ◽  
S. G. Jennings ◽  
Colin O'Dowd
Keyword(s):  
Light Scattering ◽  
Wind Speed ◽  
Correlation Coefficient ◽  
Sea Salt ◽  
Scattering Coefficient ◽  
High Positive Correlation ◽  
Positive Correlation ◽  
Percentage Occurrence ◽  
Positive Correlation Coefficient ◽  
Marine Air

Aerosol light scattering measurements were carried out using a TSI 3563 Nephelometer at the Mace Head Atmospheric Research Station, on the west coast of Ireland from year 2001–2010. A strong seasonal trend in the aerosol light scattering coefficient at 550 nm (), for clean marine air masses, is observed with a high value, [average (geometric mean)] of 35.3 Mm−1(29.5 Mm−1), in January and a low value of 13.7 Mm−1(10.2 Mm−1), in July. This near threefold increase in the value during the winter season is because of the large contribution of wind-speed generated sea-salt particles in the marine boundary layer. A high positive correlation coefficient of 0.82 was found between the percentage occurrence of relatively large Ångström exponent (Å) values (>1.2) and the percentage occurrence of lower values (5–15 Mm−1) in the summer season. and wind-speed have a high positive correlation coefficient of 0.88 whereas Å and wind-speed have a negative correlation coefficient of −0.89. Å values during the summer months indicate the dominance of sub-m particles thus indicating the contribution of non-sea-salt sulphate and organics towards the as these species show an enhanced concentration during the summer months.

scholarly journals Pengaruh Angin Dan Kelembapan Atmosfer Lapisan Atas Terhadap Lapisan Permukaan Di Manado

Jurnal MIPA ◽  
2014 ◽  
Vol 3 (1) ◽  
pp. 58 ◽  
Author(s):  
Farid Mufti ◽  
As'ari .
Keyword(s):  
Surface Layer ◽  
Wind Speed ◽  
Correlation Coefficient ◽  
Rainy Season ◽  
Primary Objective ◽  
Dry Season ◽  
Correlation Technique ◽  
Wind Condition ◽  
The North ◽  
Positive Correlation Coefficient

Penelitian ini mengkaji lebih dalam kondisi angin dan kelembapan udara pada saat musim hujan dan musim kemarau di Manado dengan menggunakan data di lapisan permukaan dan data udara atas dari Stasiun Meteorologi Sam Ratulangi Manado. Tujuan utama dari penelitian ini adalah mendapatkan hubungan antara kondisi angin dan kelembapan lapisan atas terhadap lapisan permukaan, sehingga dapat memprakirakan kondisi angin dan kelembapan lapisan permukaan dengan berdasarkan keadaan lapisan atas. Metode yang digunakan adalah mengkomponenkan angin dalam arah utara-selatan dan timur-barat, selanjutnya mencari keterkaitan dengan menggunakan teknik korelasi. Hasil penelitian ini menunjukkan pada saat musim hujan angin pada lapisan 1500 m dan angin di lapisan permukaan memiliki arah yang sama dan saling menguatkan untuk komponen timur-barat (zonal) dengan koefisien korelasi r=0,56, sedangkan pada saat musim kemarau angin pada lapisan 1500 m dan angin di lapisan permukaan memiliki arah yang sama dan saling menguatkan untuk komponen utara-selatan (meridional) dengan koefisien korelasi r=0,45. Keterkaitan yang cukup kuat antara angin dengan kelembapan terjadi pada komponen V (meridional) yaitu, pada saat musim hujan, semakin besar kecepatan angin komponen negatif (utara) semakin besar pula kelembapan udara di lapisan permukaan, dengan koefisien korelasi benilai positif r=0.40. Pada saat musim kemarau, semakin besar kecepatan angin komponen positif (selatan) semakin kecil kelembapan udara di lapisan permukaan, dengan koefisien korelasi bernilai negatif r=— 0,48.This study examined the wind and humidity condition in the rainy season and dry season in Manado by using the data in surface layer and upper air data from the Sam Ratulangi Meteorological Station. The primary objective of this study was to find the relationship between wind condition and upper layer humidity to surface layer, using correlation technique, in order to predict wind condition and humidity of the surface layer based on the condition of the upper layer. The results showed that, during the rainy season, the wind at layer 1500 m and surface layer had the same direction and mutually reinforced for the east-west component (zonal) with correlation coefficient r=0.56, whereas during the dry season, wind at layer 1500 m and at surface layer had the same direction and mutually reinforced for the north-south component (meridional) with correlation coefficient r=0.45. A relationship between wind and humidity was found at V component (meridional), which was, at rainy season, the higher the wind speed of negative component (north) the higher the humidity at surface layer with positive correlation coefficient r=0.40. At dry season, the higher the wind speed of positive component (south), the lower the humidity at the surface layer, with negative correlation coefficient r=—0.48.

Bud structure of linseed (Linum usitatissimum L.) in relation to incidence of bud fly (Dasyneura lini Barnes) in Central Uttar Pradesh

2018 ◽  
Vol 3 (02) ◽  
pp. 141-144
Author(s):  
Rishi Pal ◽  
Y. P. Malik
Keyword(s):  
Field Experiment ◽  
Correlation Coefficient ◽  
Linum Usitatissimum ◽  
Significant Positive Correlation ◽  
Uttar Pradesh ◽  
Positive Correlation ◽  
Linum Usitatissimum L ◽  
Relative Minimum ◽  
Germplasm Line ◽  
Positive Correlation Coefficient

A field experiment conducted for screened 288 elite gen pool of linseed against bud fly infestation at Kanpur, India during rabi 2012-13 to study the bud structure of resistance of linseed against bud fly. The results indicated that the bud length and width showed significant positive correlation coefficient relationship (r=0.1559 and 0.0761) bud infestation. The resistant germplasm line minimum (GS-234) minimum bud length and width (7.93 ×3.26 mm) had relative minimum bud infestation (6.88%) and was statically at par other resistant germplasm lines viz. A-95B, CI-1385, EC-1392, EC-1424, GS-234, IC-15888 and JRF-5. While susceptible germplasm line (Arny) exhibited maximum bud length and width (8.25 ×3. 23 mm) maximum bud infestation(65.11%) which was statically at par with other susceptible lines viz. Ajgan-3-1, Ajgan-20M, Alipur (Hamirpur), Anand, GS-148, GS-440, Gunawal Local, NP(RR)193, RAULD-7810, RLC-28(PM), MS-14, SJKO-2, SJKO-45.

Pengaruh Motivasi Kerja Terhadap Disiplin Kerja Karyawan Pada Hotel Permai Pekanbaru

2019 ◽  
Vol 4 (2) ◽  
pp. 316
Author(s):  
Trio Saputra
Keyword(s):  
Regression Analysis ◽  
Data Analysis ◽  
Correlation Coefficient ◽  
Quantitative Methods ◽  
Work Motivation ◽  
Secondary Data ◽  
Primary Data ◽  
Positive Correlation ◽  
Positive Correlation Coefficient

<p><em>The purpose of this study was to determine how much influence work motivation on employee work discipline at Permai Hotel Pekanbaru. In this study the authors used data analysis with Quantitative methods, namely data that can be calculated in the form of numbers obtained through questionnaires on respondents or the employee itself, and consists of Primary data and Secondary data. The results of the study based on regression analysis found that there was an effect of work motivation on employee work discipline positive correlation coefficient means having a unidirectional relationship. The better the motivation possessed by an employee, the higher the work discipline of the employee. Conversely, if the employee's work motivation is low then the work discipline will also be low, therefore the company leader, especially the hotel game will still provide motivation to employees to be able to improve work discipline.</em></p><p><em><br /></em></p><p><em>Tujuan dari penelitian ini adalah untuk mengetahui seberapa besar pengaruh motivasi kerja terhadap disiplin kerja karyawan pada Hotel Permai Pekanbaru.Di dalam Penelitian ini penulis menggunakan analisa data dengan metode Kuantitatif, yaitu data yang dapat dihitung berupa angka-angka diperoleh melalui penyebaran angket penelitian terhadap responden atau karyawan itu sendiri, dan terdiri dari data Primer dan data Sekunder. Hasil penelitian berdasarkan analisis regresi ditemukan ada pengaruh motivasi kerja terhadap disiplin kerja karyawan koefisien korelasi positif artinya memiliki hubungan yang searah. Semakin baik motivasi yang dimiliki oleh seorang karyawan maka akan semakin tinggi disiplin kerja karyawan, Sebaliknya apabila motivasi kerja karyawan rendah maka disinlin kerja juga akan rendah, oleh karena itu pimpinan perusahaan khususnya hotel permai tetap memberikan motivasi kepada karyawan untuk dapat meningkatkan disiplin kerja.</em></p>

Geochemistry of REEs and trace elements in Diz alteration area, NW Iran

2020 ◽  
Author(s):  
Behrooz Bakhshandeh ◽  
Rahim Masoumi ◽  
Asma Parvaneh
Keyword(s):  
Correlation Coefficient ◽  
Correlation Coefficients ◽  
Parent Rock ◽  
Positive Anomaly ◽  
Positive Correlation ◽  
Nw Iran ◽  
Northwest Of Iran ◽  
Gd Anomaly ◽  
Positive Correlation Coefficient ◽  
Main Component

&lt;p&gt;Diz alteration area is situated in the southern part of Ardabil province in the northwest of Iran. This alteration area is a limited part of Tarom-Hashtjin volcanic zone. The hydrothermal alteration process has been mostly taken place in pyroclastic and volcanic units such as tuff, ignimbrite, and trachyandesites. The alterations of this area are related to Eocene volcanism which has considerably developed in the northwest of Iran. The argillic alterations in Diz area are mainly seen in ignimbrite unit and the precursor rock has been intensely altered such that many parts of the parent rock has been fully leached and all of the mobile elements have been removed from the parent rock while the resistant elements such as Al, Si, and some other immobile elements have remained in the context. Considering to the special behavior of REEs in the weathering and alteration profiles, depending on the REE bearing mineral&amp;#8217;s resistivity against weathering and alteration processes, REEs can be removed or fixed in the environment. In the studied samples different concentrations of REEs are observable.&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160; &amp;#160;&lt;/p&gt;&lt;p&gt;The drawn REE diagrams show unique patterns for the studied samples where Ce group elements (LREEs) show a slight enrichment comparing to Y group (HREEs). The comparison of LREEs with HREEs represents that LREEs have been enriched 4 times more than HREEs.&lt;/p&gt;&lt;p&gt;The positive correlation coefficient between &amp;#931;REE and TiO&lt;sub&gt;2 &lt;/sub&gt;(R&lt;sup&gt;2&lt;/sup&gt;=0.70) represents the role of Ti bearing minerals such as ilmenite, pyroxene, rutile, and anatase in the fixation of REEs. On the other side the presence of considerable amounts of P&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5 &lt;/sub&gt;in the studied samples and also the positive correlation coefficients between P&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5 &lt;/sub&gt;and LREEs (R&lt;sup&gt;2&lt;/sup&gt;=0.90), and P&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5&lt;/sub&gt; and &amp;#931;REE (R&lt;sup&gt;2&lt;/sup&gt;=0.74) suggest that some minor minerals such as monazite (Ce,La,Nd,Th)(PO&lt;sub&gt;4&lt;/sub&gt;,SiO&lt;sub&gt;4&lt;/sub&gt;) must be considered. The positive correlation coefficient between Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3 &lt;/sub&gt;and &amp;#931;REE shows the influence of clay minerals in the adsorption of REEs.&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160; &amp;#160;&lt;/p&gt;&lt;p&gt;The evaluation of REE patterns normalized to chondrite show a remarkable peak for Gd. Geochemically, Gd shows similarities with Ca&lt;sup&gt;2+&lt;/sup&gt;. The Gd complexes may decompose in the presence of some elements such as Cu, Y, and REEs and Gd&lt;sup&gt;3+ &amp;#173;&amp;#173;&lt;/sup&gt;can be released. Hence, CaO is a main component in the parent rock of the studied altered samples, the positive Gd anomaly is most likely related to the primary composition of the parent rock. Furthermore, the decomposition of Gd complexes in the presence of competitor elements and also the high Gd content of altering fluids can be thought as the main reasons of Gd positive anomaly in the studied samples.&lt;/p&gt;

Aerosol light scattering dependency on wind speed in marine air

2013 ◽  
Author(s):  
Aditya Vaishya ◽  
S. G. Jennings ◽  
C. D. O'Dowd
Keyword(s):  
Light Scattering ◽  
Wind Speed ◽  
Marine Air

scholarly journals PERSEPSI MASYARAKAT TERHADAP KEBERADAAN HUTAN MANGROVE DI KELURAHAN SETAPUK BESAR KECAMATAN SINGKAWANG UTARA KOTA SINGKAWANG

2020 ◽  
Vol 8 (4) ◽  
pp. 738
Author(s):  
Masjuni Ayu ◽  
H A Oramahi ◽  
Sofyan Zainal
Keyword(s):  
Correlation Coefficient ◽  
Mangrove Forest ◽  
Total Sample ◽  
Community Perceptions ◽  
Negative Perception ◽  
Positive Correlation ◽  
Level Of Knowledge ◽  
Correlation Strength ◽  
Positive Correlation Coefficient ◽  
B Test

Mangrove forest and the community lived around it are two components that influence each other. The interaction between the two of them is unavoidable because they live in the same environment. Activities, perceptions or actions of the community can affect the sustainability of the existence and the preservation of mangrove forest. This study aims to describe the community perceptions towards mangrove forest and to analyze the correlation that affects community perceptions in Setapuk Besar village towards the level of knowledge, dependence, and cosmopolitanism. The technique of sampling employed in this study is purposive sampling. Based on Slovin formula, a total sample of 74 respondents was obtained. The frequency of community perceptions in Setapuk Besar village on the existence of mangrove forest are: 67 respondents (90.5%) had positive perceptions, 6 respondents (8.1%) had neutral perceptions, and 1 respondent (1.4%) had negative perception. From the results of Kendall tau-b test, the value of Sig 0.000 < 0.01 and Sig 0.028 < 0.05, which indicates that there is a significant correlation between community perceptions with the level of dependence positive correlation (0.419), the correlation strength is moderate. Cosmopolitan level positive correlation (0.190), the correlation strength is low.  While the value of Sig 0.170 > 0.05, which indicates that there is no significant correlation between community perceptions and the level of knowledge positive correlation coefficient (0.119), the correlation strength is low.Keywords: Community perceptions, mangrove forest, Respondents, Setapuk Besar

The Impact of Digital Literacy Proficiency on EFL Students' Academic Writing Performance

2019 ◽  
Vol 10 (4) ◽  
pp. 40-55
Author(s):  
Chahrazad Hamouma ◽  
Nadia Menezla
Keyword(s):  
Correlation Coefficient ◽  
Academic Writing ◽  
Digital Literacy ◽  
Performance Test ◽  
High Positive Correlation ◽  
Writing Performance ◽  
Literacy Proficiency ◽  
Efl Students ◽  
Positive Correlation Coefficient ◽  
The Impact

In light of the increasing recognition of digital literacy in learning and education generally, and in English Foreign Language (EFL) instruction specifically, the purpose of this research article is to examine the impact of digital literacy on EFL students' academic writing performance. The subjects of this study were 80 third year EFL students from M'sila University. The research instruments included a digital literacy questionnaire and a writing performance test which were given to the study participants to answer. The relationship between students' digital literacy and their academic writing performance was analyzed using the Spearman's correlation coefficient. The results revealed that there is a high positive correlation coefficient between the research variables, which was statistically significant at the level (α = 0,01). Therefore, it was concluded that digital literacy is an effective factor for the development of English academic writing performance.

scholarly journals Butyrylcholinesterase and diabetes mellitus in the CHE2 C5- and CHE2 C5+ phenotypes

2010 ◽  
Vol 54 (1) ◽  
pp. 60-67 ◽  
Author(s):  
Mauro M. Cwiertnia ◽  
Vânia M. Alcântara ◽  
Rosângela R. Réa ◽  
Ana Cristina R. A. Faria ◽  
Geraldo Picheth ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
Relative Activity ◽  
Molecular Forms ◽  
Diabetic Patients ◽  
High Positive Correlation ◽  
Positive Correlation ◽  
Positive Correlation Coefficient

OBJECTIVE:To investigate the relationship between butyrylcholinesterase (BChE) activities (total and band specific) and diabetes mellitus. SUBJECTS AND METHODS: BChE activities (BChEA, AC 4/5, AC OF and RC5) were analyzed in 101 type 1 (DM1) and in 145 type 2 (DM2) diabetic patients, in relation to phenotype, weight and incidence of metabolic syndrome (MS) in these patients. The C4/5 and C5 complex were separated from other molecular forms (C OF) using an acid agar gel. RESULTS: The BChE activity (BChEA) and the absolute activities of C4/5 (AC4/5) and C OF (AC OF) showed a high positive correlation coefficient to weight in the CHE2 C5- group, while the relative activity of C5 complex (RC5) showed a negative correlation to weight. CONCLUSIONS: The present study suggests that the positive correlation of the BChE activities to diabetes mellitus and to insulin resistance may depend on the CHE2 locus variability. High values of BChE activities were associated with insulin resistance only in CHE2 C5- diabetic patients, while in CHE2 C5+ diabetic patients, the presence of C5 complex, especially in a relatively high proportion, leads to less fat storage and better protection against metabolic syndrome.

scholarly journals FECUNDITY AND LONGEVITY OF F1 FEMALES OF HABROBRACON FROM SPERM X-RAYED WITH 3000r

Genetics ◽  
1972 ◽  
Vol 71 (3) ◽  
pp. 349-365
Author(s):  
Gertrude Heidenthal ◽  
Wayne Nelson ◽  
Leonard Clark
Keyword(s):  
Linear Regression ◽  
Correlation Coefficient ◽  
Partial Correlation ◽  
Significant Positive Correlation ◽  
Average Difference ◽  
Sensitive Analysis ◽  
Positive Correlation ◽  
Positive Correlation Coefficient ◽  
Partial Correlation Coefficient

Abstract Our purpose was to compare with respect to fecundity and longevity two groups of F1 diploid virgins of Habrobracon the fathers of which had been X-rayed with 3000r. Sorting of wasps into two groups was based on low or high hatchability of their F2 haploid eggs. Wasps with low hatchability (below 60%) are heterozygous for induced embryonic lethals such as recessives and translocations; wasps with high hatchability (100–60%) are free of lethals or possibly heterozygous for mild detrimentals. The F1s showing high hatchability laid significantly more eggs on the average; the average difference in lifespan was almost statistically significant (7% level). A more sensitive analysis by regression indicated a highly significant linear regression of survival of all F1s on hatchability of their eggs: F1s whose eggs showed 100% hatchability lived 1.84 days longer on the average than those whose eggs showed no hatchability. Furthermore, the former laid 4.99 more eggs on the average than the latter. The data also showed a very highly significant positive correlation coefficient between eggs laid and survival of mothers (0.122***) and a very highly significant positive partial correlation coefficient (0.105***) with hatchability held constant. The latter indicates that the F1s which laid more eggs also live longer, regardless of the hatchability of their eggs and hence of the heterozygosity of the mothers for lethals and other detrimentals.

scholarly journals Event Volunteer Satisfaction Research on the Relationship between the Service Performances—Based on Analysis of the Mediation Effect of Psychological Contract

CONVERTER ◽  
2021 ◽  
pp. 728-737
Author(s):  
Shuhua Xia, Mingliang Li
Keyword(s):  
Job Satisfaction ◽  
Correlation Coefficient ◽  
Psychological Contract ◽  
Service Performance ◽  
Mediating Effect ◽  
Mediation Effect ◽  
Positive Correlation ◽  
Model Account ◽  
Positive Correlation Coefficient ◽  
The Relationship

In this paper, 287 volunteers from the 11th Traditional Games of Ethnic Minorities were investigated, the relationship among job satisfaction, service performance and psychological contract of volunteers in sports events was studied by using correlation analysis and hierarchical regression analysis, to examine the mediating effect of psychological contract on satisfaction and service performance of event volunteers. The results show that (1) there is a significant correlation between satisfaction, service performance and psychological contract, and the positive correlation Coefficient between satisfaction and service performance is 0.448, the correlation coefficient between satisfaction and psychological contract was r = 0.342, and the positive correlation coefficient between psychological contract and service performance was r = 0.827, both of which had significant level on P & Lt; 0.01 (2) psychological contract and job satisfaction have positive influence on service performance. The higher the degree of psychological contract and job satisfaction, the better the service performance. (3) the degree of satisfaction with the work of the match volunteers can effectively improve the achievement of the psychological contract, and the achievement of the psychological contract is conducive to the improvement of the service performance of the match volunteers, psychological contract has a significant mediating effect between satisfaction and service performance. The direct effect (0.1599) and the mediating effect (0.227) of this model account for 41% and 59% of the total effect (0.3869) respectively. Therefore, a sound communication channel should be established between the organizers and the volunteers, a scientific and reasonable incentive mechanism should be established, the management level of the organizers of the Games should be raised, and the degree of work satisfaction and psychological contract of the volunteers should be enhanced, improve the service performance, enhance the influence of the competition.

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