| 000 -LEADER |
|---|
| fixed length control field |
01635nab a22001697a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20230201164107.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
230201b ||||| |||| 00| 0 eng d |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Preferred name for the person |
Besana, Michelle B. |
| Relator term |
author |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Modeling Iloilo river water quality |
| 264 #4 - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Date of publication, distribution, etc |
2017 |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc |
The analysis of covariance model (ANCOVA) with heterogeneous variance first-order autoregressive error covariance structure<br/>(ARH1) was used to model the differences in fecal streptococci concentration in Iloilo River over time with fixed site and seasonal<br/>effects as primary factors of interest, and water temperature, pH, dissolved oxygen, and salinity as covariates. The restricted<br/>maximum likelihood estimation (REML) procedure was used to derive the parameter estimates and the Kenward-Roger adjustment in the degrees of freedom was used to better approximate the distributions of the test statistics. The effect of season was highly significant (p = 0.0019). The site effect was significant at the 0.0539 level. The effects of water surface temperature and pH were significant at the 0.0655 and 0.0828 level, respectively. The effects of dissolved oxygen and salinity were not significant. Although the coefficient of determination was modest, the result of the study is useful in characterizing the dynamics of Iloilo River bacteriological system which contributes to an improved understanding of the Iloilo River water quality. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Analysis of covariance |
| 654 ## - SUBJECT ADDED ENTRY--FACETED TOPICAL TERM |
|---|
| Focus term |
Water quality |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Padilla, Philip Ian p. |
| Relator term |
author |
| 773 ## - HOST ITEM ENTRY |
|---|
| Title |
The Philippine statistician |
| Relationship information |
vol. 66, no. 1: (2017), pages 75-92 |
| 942 ## - ADDED ENTRY ELEMENTS |
|---|
| Source of classification or shelving scheme |
|
| Item type |
JOURNAL ARTICLE |