Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1949 1
1956 1
1961 1
1965 1
1967 1
1970 2
1971 1
1975 1
1976 1
1977 1
1979 1
1980 1
1986 2
1989 1
1990 2
1991 1
1992 2
1994 3
1996 1
1999 2
2000 2
2001 8
2002 3
2003 3
2004 6
2005 8
2006 8
2007 16
2008 25
2009 14
2010 15
2011 11
2012 16
2013 18
2014 21
2015 25
2016 19
2017 15
2018 24
2019 19
2020 21
2021 24
2022 20
2023 27
2024 10

Text availability

Article attribute

Article type

Publication date

Search Results

357 results

Results by year

Filters applied: . Clear all
Page 1
Tracing Oils and Gas Accumulation in Complex Petroleum Systems Based on Biomarkers, Light Hydrocarbons, and Diamondoids from Concomitant Crude Oils: A Case Study in the Shawan Sag of the Junggar Basin, NW China.
Cai H, Yu S, Jin J, Li E, Mi J, Wang Y, Pan C. Cai H, et al. ACS Omega. 2024 Apr 26;9(18):20512-20531. doi: 10.1021/acsomega.4c01844. eCollection 2024 May 7. ACS Omega. 2024. PMID: 38737090 Free PMC article.
At least three oil charging episodes and one gas charging episode could be confirmed in the reservoirs on the western slope of the Shawan Sag based on the analysis of concentrations and ratios of hopanes and steranes, diamondoids, and light hydrocarbons. The first and seco …
At least three oil charging episodes and one gas charging episode could be confirmed in the reservoirs on the western slope of the Shawan Sa …
Influence of HEM Drilling Fluid on Organic Geochemical Characteristics of Deep-Water Source Rocks in the Qiongdongnan Basin.
Zhang Z, Hou D, Cheng X, Yan X, Chen W. Zhang Z, et al. ACS Omega. 2024 Apr 24;9(18):20582-20592. doi: 10.1021/acsomega.4c02311. eCollection 2024 May 7. ACS Omega. 2024. PMID: 38737062 Free PMC article.
Furthermore, the organic drilling additives will greatly enhance the levels of C(29) regular steranes, especially for C(29)-alphaalphaalpha-20R sterane, with the influence still persisting even when conducting GC-MS-MS analysis. ...
Furthermore, the organic drilling additives will greatly enhance the levels of C(29) regular steranes, especially for C(29)-alphaalph …
Organic matter sources and distribution along land-use gradient in a Himalayan foothills River: Insights from molecular markers.
Behera D, Chetan D, Anoop A. Behera D, et al. Environ Res. 2024 Apr 12;252(Pt 3):118909. doi: 10.1016/j.envres.2024.118909. Online ahead of print. Environ Res. 2024. PMID: 38615790
The study involved identification and quantification of various compound groups such as n-alkanes, hopanes, steranes, polycyclic aromatic hydrocarbons (PAHs), linear alkyl benzenes (LABs) and phthalate esters along with their respective parametric ratios. ...The detection …
The study involved identification and quantification of various compound groups such as n-alkanes, hopanes, steranes, polycyclic arom …
Prednisolone.
[No authors listed] [No authors listed] 2024 Apr 15. Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006–. 2024 Apr 15. Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006–. PMID: 30000135 Free Books & Documents. Review.
Geochemical Evaluation of Paleocene Source Rocks in the Kohat Sub-Basin, Pakistan.
Sohail J, Mehmood S, Jahandad S, Ehsan M, Abdelrahman K, Ali A, Qadri SMT, Fnais MS. Sohail J, et al. ACS Omega. 2024 Mar 15;9(12):14123-14141. doi: 10.1021/acsomega.3c09457. eCollection 2024 Mar 26. ACS Omega. 2024. PMID: 38559993 Free PMC article.
The ratios between C(19)TCT/C(19) TCT + C(23) TCT and C(24) TeCT/C(24)TeCT + C(23)TCT biological source inputs are mainly of marine origin. Similarly, the ternary diagram of regular steranes (C(27)-C(28)-C(29)) shows a greater marine input. Lower values of the carbon prefe …
The ratios between C(19)TCT/C(19) TCT + C(23) TCT and C(24) TeCT/C(24)TeCT + C(23)TCT biological source inputs are mainly of marine origin. …
Organic Geochemical Evidence for the Formation of Condensate from Coaly Source Rocks in the Wumaying Buried Hill of the Huanghua Depression, Bohai Bay Basin.
Lou D, Wang LE, Luo R, Xu J, Sun Y, Zhang F, Zhao Y, Wang H, Ge J. Lou D, et al. ACS Omega. 2024 Mar 6;9(11):12676-12688. doi: 10.1021/acsomega.3c07857. eCollection 2024 Mar 19. ACS Omega. 2024. PMID: 38524470 Free PMC article.
High pristine/phytane ratios (1.0-7.5), an abundant presence of benzene series, and the dominance of C(29) steranes (>50%) within the condensate could be indicative of coaly organic matter. ...
High pristine/phytane ratios (1.0-7.5), an abundant presence of benzene series, and the dominance of C(29) steranes (>50%) within …
Application of various molecular markers for investigating petrogenic inputs in coastal systems strongly impacted by anthropogenic stressors.
Lubecki L, Szymczak-Żyła M. Lubecki L, et al. Mar Pollut Bull. 2024 Apr;201:116224. doi: 10.1016/j.marpolbul.2024.116224. Epub 2024 Mar 7. Mar Pollut Bull. 2024. PMID: 38457880
In this study, multiple molecular markers [polycyclic aromatic hydrocarbons (PAHs), linear and branched alkanes, unresolved complex mixture (UCM), hopanes, and steranes] were applied to explore petroleum-related inputs in complex coastal systems influenced by various human …
In this study, multiple molecular markers [polycyclic aromatic hydrocarbons (PAHs), linear and branched alkanes, unresolved complex mixture …
Organometallic Ru(II), Rh(III) and Re(I) complexes of sterane-based bidentate ligands: synthesis, solution speciation, interaction with biomolecules and anticancer activity.
Pivarcsik T, Kiss MA, Rapuš U, Kljun J, Spengler G, Frank É, Turel I, Enyedy ÉA. Pivarcsik T, et al. Dalton Trans. 2024 Mar 12;53(11):4984-5000. doi: 10.1039/d3dt04138g. Dalton Trans. 2024. PMID: 38406993
In this study, we present the synthesis, characterization and in vitro cytotoxicity of six organometallic [Ru(II)(eta(6)-p-cymene)(N,N)Cl]Cl, [Rh(III)(eta(5)-C(5)Me(5))(N,N)Cl]Cl and [Re(I)(CO)(3)(N,N)Cl] complexes, in which the (N,N) ligands are sterane-based 2,2'-bipyrid …
In this study, we present the synthesis, characterization and in vitro cytotoxicity of six organometallic [Ru(II)(eta(6)-p-cymene)(N,N)Cl]Cl …
Levels, spatial distributions, and provision of petroleum hydrocarbons and phthalates in sediments from Obhur lagoon, Red Sea coast of Saudi Arabia.
Alharbi HA, Rushdi AI, Rasul N, Bazeyad A, Al-Mutlaq KF. Alharbi HA, et al. Environ Geochem Health. 2024 Jan 2;46(1):22. doi: 10.1007/s10653-023-01793-4. Environ Geochem Health. 2024. PMID: 38169010
The lagoon was divided into the inner zone, middle zone, and outer zone based on its geomorphological features and developmental activities. n-Alkanes, hopane and sterane biomarkers, and unresolved complex mixture were the major petroleum hydrocarbon compounds of the total …
The lagoon was divided into the inner zone, middle zone, and outer zone based on its geomorphological features and developmental activities. …
Paleoenvironmental Settings of the Soma Coal Basin (Turkey): Insights from Maceral Data, Biomarker, and Carbon Isotopic Composition.
Karadirek S. Karadirek S. ACS Omega. 2023 Dec 5;8(50):47974-47990. doi: 10.1021/acsomega.3c06635. eCollection 2023 Dec 19. ACS Omega. 2023. PMID: 38144149 Free PMC article.
Huminite reflectance, Tmax, and biomarker data (22S/22S+22R (C(32)) sterane, betabeta/(alphaalpha + betabeta) (C(29)) sterane, and MPI-1) indicate that the organic matter is not thermally mature and that the Soma-Manisa coal has reached the sub-bituminous rank. ...T …
Huminite reflectance, Tmax, and biomarker data (22S/22S+22R (C(32)) sterane, betabeta/(alphaalpha + betabeta) (C(29)) sterane, …
357 results