New developments in constraining models of oil generation and migration using data from fluid inclusions

2008 ◽  
Vol 48 (2) ◽  
pp. 455 ◽  
Author(s):  
Peter Eadington ◽  
Richard Kempton
Keyword(s):  
Fluid Inclusions ◽  
New Developments ◽  
Oil Generation ◽  
Using Data ◽  
And Migration

Migration and the Internet

2017 ◽  
Vol 14 (3) ◽  
pp. 331-342 ◽  
Author(s):  
Thomas John Cooke ◽  
Ian Shuttleworth
Keyword(s):  
United States ◽  
Information And Communication Technologies ◽  
Unobserved Heterogeneity ◽  
Panel Study ◽  
The United States ◽  
Negative Effect ◽  
Information And Communication ◽  
Using Data ◽  
And Migration ◽  
Dynamics Models

It is widely presumed that information and communication technologies, or ICTs, enable migration in several ways; primarily by reducing the costs of migration. However, a reconsideration of the relationship between ICTs and migration suggests that ICTs may just as well hinder migration; primarily by reducing the costs of not moving.  Using data from the US Panel Study of Income Dynamics, models that control for sources of observed and unobserved heterogeneity indicate a strong negative effect of ICT use on inter-state migration within the United States. These results help to explain the long-term decline in internal migration within the United States.

scholarly journals Fluid inclusions in buried quartz of the Yanchang sandstone in the Jiyuan area, Ordos Basin, China: Implications for basin evolution and petroleum accumulation

2020 ◽  
pp. 014459872097451
Author(s):  
Wenqi Jiang ◽  
Yunlong Zhang ◽  
Li Jiang
Keyword(s):  
Fluid Inclusions ◽  
Ordos Basin ◽  
Homogenization Temperature ◽  
Burial Depth ◽  
Hydrocarbon Generation ◽  
Rock Interaction ◽  
Yanchang Formation ◽  
Reflection Data ◽  
And Migration ◽  
Vitrinite Reflection

A fluid inclusion petrographic and microthermometric study was performed on the sandstones gathered from the Yanchang Formation, Jiyuan area of the Ordos Basin. Four types of fluid inclusions in quartz can be recognized based on the location they entrapped. The petrographic characteristics indicate that fluid inclusions in quartz overgrowth and quartz fissuring-I were trapped earlier than that in quartz fissuring-IIa and fissuring-IIb. The homogenization temperature values of the earlier fluid inclusions aggregate around 80 to 90°C; exclusively, it is slightly higher in Chang 6 member, which approaches 95°C. The later fluid inclusions demonstrate high homogenization temperatures, which range from 100 to 115°C, and the temperatures are slightly higher in Chang 9 member. The calculated salinities show differences between each member, including their regression characteristics with burial depth. Combining with the vitrinite reflection data, the sequence and parameters of fluid inclusions indicate that the thermal history of the Yanchang formation mostly relied on burial. Salinity changes were associated with fluid-rock interaction or fluid interruption. Hydrocarbon contained fluid inclusions imply that hydrocarbon generation and migration occurred in the Early Cretaceous. The occurrence of late fluid inclusions implied that quartz cement is a reservoir porosity-loose factor.

The digital divide in individual e-commerce utilization in China

2012 ◽  
Vol 29 (1) ◽  
pp. 69-80 ◽  
Author(s):  
Shizhan Zhu ◽  
Juan Chen
Keyword(s):  
Digital Divide ◽  
The Internet ◽  
Digital Inequality ◽  
Urban Inequality ◽  
First Order ◽  
Gender Education ◽  
Residency Status ◽  
Logistic Regressions ◽  
Using Data ◽  
And Migration

Using data from a national survey with 1,288 respondents, this study investigates the socio-demographic determinants of the first-order digital divide (access to the Internet) and the second-order digital divide (e-commerce use) in China. The survey employed spatial probability sampling technology so it would encompass migrants as well as registered residents. Multiple logistic regressions were applied to model the associations between access to the Internet/e-commerce use and demographic characteristics, socio-economic attributes, and migration and residency status. The results demonstrate the significant effects of rural-urban inequality and socio-economic divisions in Internet access. Age, gender, education, and residency were identified as significant predictors for individual e-commerce use. The findings provide helpful information for enterprises wishing to broaden their business horizons. The research can also be used in designing effective policies to reduce China’s digital inequality.

Histories of Couple Formation and Migration: The Case of Foreigners in Lombardy, Italy

2019 ◽  
Vol 40 (9) ◽  
pp. 1126-1153 ◽  
Author(s):  
Giuseppe Gabrielli ◽  
Laura Terzera ◽  
Anna Paterno ◽  
Salvatore Strozza
Keyword(s):  
Sample Survey ◽  
International Debate ◽  
Migrant Families ◽  
Italian Regions ◽  
Main Determinants ◽  
Using Data ◽  
And Migration ◽  
The Relationship ◽  
Migration Event ◽  
Couple Formation

Migrant families have become relevant in Italy during the past decade and Lombardy is one of the Italian regions with the largest foreign presence. The aim of the article is to contribute to the international debate on the relationship between couple formation and migration event. Using data from the 2010 ORIM ( Osservatorio Regionale sull’Immigrazione e la Multietnicità) sample survey and event history techniques, we look at the main determinants of the transition to couple formation. The results show both the presence of significant time-related interrelations between the two events and the importance of the gender role in migration. Migrant men have a low propensity of couple formation in the period around the migration event. Their length of stay at destination is positively related to such propensity. Women have the highest likelihood of transition to couple formation in proximity to the migration event. However, interesting differences in the timing of union formation persist by origin backgrounds.

Hypertension as a predictor of outcome and treatment response to cetuximab: A retrospective analysis of NCIC CTG CO.17.

2016 ◽  
Vol 34 (4_suppl) ◽  
pp. 256-256
Author(s):  
Shelly Sud ◽  
Christopher J. O'Callaghan ◽  
Caleb Jonker ◽  
Christos Stelios Karapetis ◽  
Timothy Jay Price ◽  
...  
Keyword(s):  
Treatment Effect ◽  
Cox Regression ◽  
Beta Blockers ◽  
Performance Status ◽  
Progression Free Survival ◽  
Chi Square ◽  
Invasion And Migration ◽  
Using Data ◽  
And Migration ◽  
The Impact

256 Background: Adrenergic receptor stimulation is involved in development of hypertension (HTN), and is implicated in progression and dissemination of metastases in tumour types such as colon cancer (CRC). Adrenergic antagonists, such as beta-blockers (BB), demonstrate inhibition of invasion and migration in CRC cell lines and have been associated with decreased mortality in advanced CRC. We examined the association of baseline HTN (BHTN) and use of BB on overall (OS) or progression-free survival (PFS) of pts with pre-treated, chemotherapy refractory, metastatic CRC (mCRC). We also examined BHTN and BB use as predictors of Cetuximab (CET) efficacy. Methods: Using data from NCIC CO.17 (CET vs. BSC), we coded BHTN and use of anti-HTN meds (Rx), including BB, for 572 pts. Chi-square test assessed association between these variables and baseline characteristics. Univariate and multivariate analyses of OS and PFS by BHTN diagnosis and BB use were performed using Cox regression models. Results: Pts with BHTN (149/572) and those using BB (60/572) were older, had diminished performance status, and higher creatinine levels. BHTN, BB use and anti-HTN Rx were not prognostic for OS and PFS, though a trend was noted between BB use and improved PFS (HR 1.38 [0.97- 1.96], p= 0.077). BHTN and BB use were not significant predictors of CET benefit. However, pts with BHTN tended to have a stronger treatment effect in PFS from CET (interaction p = 0.074). Conclusions: In chemo-refractory mCRC, BHTN and BB use are not significant prognostic factors. BHTN and BB use are also not predictive of CET benefit, though pts with baseline HTN may benefit from a stronger treatment effect with CET. Patients with chemo-refractory mCRC may be biologically selected and the impact of BB use in earlier lines may therefore still warrant investigation. [Table: see text]

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