語系:
繁體中文
English
說明(常見問題)
圖資館首頁
登入
回首頁
切換:
標籤
|
MARC模式
|
ISBD
Analysis and simulation of young chi...
~
AuYeung, Willa Waiying.
Analysis and simulation of young children's hand and mouthing contact behaviors.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Analysis and simulation of young children's hand and mouthing contact behaviors.
作者:
AuYeung, Willa Waiying.
面頁冊數:
205 p.
附註:
Adviser: James O. Leckie.
附註:
Source: Dissertation Abstracts International, Volume: 68-02, Section: B, page: 1210.
Contained By:
Dissertation Abstracts International68-02B.
標題:
Health Sciences, Public Health.
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3253466
Analysis and simulation of young children's hand and mouthing contact behaviors.
AuYeung, Willa Waiying.
Analysis and simulation of young children's hand and mouthing contact behaviors.
- 205 p.
Adviser: James O. Leckie.
Thesis (Ph.D.)--Stanford University, 2007.
An understanding of hand and mouthing contact behaviors is important to accurately estimating dermal and nondietary ingestion exposure to environmental contaminants. This dissertation aims to reduce data gaps in the understanding of children's contact behaviors by utilizing the large dataset of microactivity data that Stanford's Exposure Research Group has collected over the past decade. In this dataset, microactivities (i.e., detailed contact behaviors) were collected via videotaping. Two distinct datasets were analyzed. One dataset focused on children's contact behaviors in outdoor residential locations. The other contains longitudinal data collected for one child over a period of seven years. Data were analyzed to explore correlations between contact behaviors and factors such as age, location, gender, and macroactivity (i.e., general activities such as reading and walking). The fraction of total hand surface area involved in hand contacts was estimated using data from the outdoor study. Lastly, multiple algorithms were implemented to explore a novel method to simulate children's contact behaviors via block resampling of microactivities associated with distinct blocks of macroactivities.Subjects--Topical Terms:
212500
Health Sciences, Public Health.
Analysis and simulation of young children's hand and mouthing contact behaviors.
LDR
:03382nmm _2200265 _450
001
180758
005
20080111103839.5
008
090528s2007 eng d
035
$a
00311784
040
$a
UMI
$c
UMI
100
0
$a
AuYeung, Willa Waiying.
$3
264340
245
1 0
$a
Analysis and simulation of young children's hand and mouthing contact behaviors.
300
$a
205 p.
500
$a
Adviser: James O. Leckie.
500
$a
Source: Dissertation Abstracts International, Volume: 68-02, Section: B, page: 1210.
502
$a
Thesis (Ph.D.)--Stanford University, 2007.
520
#
$a
An understanding of hand and mouthing contact behaviors is important to accurately estimating dermal and nondietary ingestion exposure to environmental contaminants. This dissertation aims to reduce data gaps in the understanding of children's contact behaviors by utilizing the large dataset of microactivity data that Stanford's Exposure Research Group has collected over the past decade. In this dataset, microactivities (i.e., detailed contact behaviors) were collected via videotaping. Two distinct datasets were analyzed. One dataset focused on children's contact behaviors in outdoor residential locations. The other contains longitudinal data collected for one child over a period of seven years. Data were analyzed to explore correlations between contact behaviors and factors such as age, location, gender, and macroactivity (i.e., general activities such as reading and walking). The fraction of total hand surface area involved in hand contacts was estimated using data from the outdoor study. Lastly, multiple algorithms were implemented to explore a novel method to simulate children's contact behaviors via block resampling of microactivities associated with distinct blocks of macroactivities.
520
#
$a
Results showed that median mouthing contact frequencies ranged from <1 to 136 seconds while median hand-to-object contacts ranged from <1 to 5 seconds. Children ≤24 months old had longer hourly mouthing contact durations with the hand than children >24 months old. Both hand and mouthing contact frequencies were higher indoors than outdoors. Frequency and hourly contact duration of hand contacts with total objects increased with age. Girls had higher mouthing contact frequencies but shorter hourly mouthing contact durations with the hands than boys. Additionally, children's hand contacts with relevant objects were found to be highly correlated with the three macroactivities studied (i.e., "Playing with animal", "Playing on playset", and "Playing with vegetation"). Quantification of the fraction of total hand surface area involved in children's outdoor contacts showed that a fractional value of 0.31 captured 80-100% contact surface area involved in children's hand contacts. Lastly, evaluation of a novel method to simulate macroactivity and microactivity time series data using block resampling showed that block resampling can be a valid way to simulate extended children's contact activity time series.
590
$a
School code: 0212.
650
# 0
$a
Health Sciences, Public Health.
$3
212500
650
# 0
$a
Engineering, Environmental.
$3
212478
690
$a
0573
690
$a
0775
710
0 #
$a
Stanford University.
$3
212607
773
0 #
$g
68-02B.
$t
Dissertation Abstracts International
790
$a
0212
790
1 0
$a
Leckie, James O.,
$e
advisor
791
$a
Ph.D.
792
$a
2007
856
4 0
$u
http://libsw.nuk.edu.tw:81/login?url=http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3253466
$z
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3253466
筆 0 讀者評論
全部
電子館藏
館藏
1 筆 • 頁數 1 •
1
條碼號
館藏地
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
000000007623
電子館藏
1圖書
學位論文
TH
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
多媒體檔案
http://libsw.nuk.edu.tw:81/login?url=http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3253466
評論
新增評論
分享你的心得
Export
取書館別
處理中
...
變更密碼
登入