Alien Registration- Brume, Frank (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/23964/thumbnail.jp

Alien Registration- Brume, Samuel M. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/23966/thumbnail.jp

Alien Registration- Brume, Ella M. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/23963/thumbnail.jp

Diagenetic imprints on reservoir quality, provenance perceptions and paleosalinity conditions of the Miocene Agbada Formation, Niger Delta Basin: a petrographic and geochemical investigation

The main exploration targets for hydrocarbons in the Niger Delta Basin are within the Agbada Formation sandstone reservoirs. Most studies in the Agbada Formation are skewed towards understanding the petroleum system, and this has led to a paucity of datasets on several important subjects, which is a motivation for this research. This investigation utilizes a multi-technical (Thin-section, SEM-MLA, XRD, XRF, ICP-MS and LA-ICP-MS) approach to evaluate the petrographic attributes, diagenesis and influence of rare calcite cement on reservoir quality, inorganic geochemical signatures and their significance for unraveling provenance and paleosanity conditions prevalent in the Agbada Formation. Weathering proxies (e.g. CIA, CIX, αᴬˡE), paleoclimatic signatures (e.g., Ga/Rb vs. K₂O/Al₂O₃) and elemental ratios (e.g. La/Co, Cr/Th, Th/Co), including REEs signals (LREE/HREE, flat HREE pattern, Eu/Eu*) diagnostic of provenance for the sandstones and interbedded shales suggests moderate to intense weathering, humid paleoclimatic settings and signatures of sediments derived predominantly from felsic sources. Boron-derived paleosalinometric tools (e.g. equivalent boron, Adam's, Landergren and Carvajal's, and Couch's methods), elemental ratios (e.g. B/Ga, Sr/Ba, and S/TOC) and other proxies sensitive to redox (e.g. Cr, Ni/Co, Mo-EF/U-EF) point to mainly low- saline (brackish) settings with considerable signature inputs from both freshwater and marine water (comparatively lesser), and oxic-suboxic conditions for the interbedded shales. The Agbada sandstones (Q₈₈.₅₈ F₉.₉₉ RF₂.₄₃) are classified as feldspatho-quartzose and quartzose sandstones, with a predominance of quartzose sandstones and their diagenetic signatures reflect low degree of compaction and lack of pervasive cementation, with compaction comparatively posing more influence on porosity, excluding some intervals with considerable cementation (siderite and ferroan calcite) where compactional porosity-loss was minimal. The occurrence of ferroan calcite cement (mainly ferroan) is generally small, probably discontinuous and may generally not pose a substantial barrier to fluid flow, but understanding their localized influence may still contribute to building good reservoir models. Petrographic evidence in the sandstones suggests that calcite cement is an early event, but the shale normalized REE + Y patterns appear to reflect non-seawater patterns, indicating possible contamination (Y/Ho = 36.30 ± 1.35) from clastic or detrital grains that depict fluvial/estuarine influence and/or incorporation of particulate matter that can preferentially scavenge LREEs from the overlying water column. A potential concern during reservoir production is the anticipated production of fines and formation damage linked to the occurrence of clay mineral matrix (mostly kaolinitic), but this can be reduced with appropriate reservoir management

Challenges of Utilizing Library Resources by Students in College of Education, Agbor

This study examine the challenges of utilizing college library resources by the students in college of education, Agbor. In carrying out this study four research questions were posed. The study sample population comprised 1,325 (2016/2017) registered users of the library. The instrument used for data collection in this study was questionnaire. Research questions were answered using frequency count and percentages. Findings reveals that 68% were female while 32% were male. Textbooks topped the highest consulted materials 99%; follows by theses/ dissertations 92%, journals 73% and reference materials 68%, computers 67%, newspapers/magazines 52% among others. Major challenges encountered were lack of internet facility, insufficient professional librarians, inadequate funding, lack of photocopying services, inadequate relevant materials, inadequate functional ICT facilities, lack of user’s education, unconducive state of the library, lack of awareness of the library resources, poor state of library collections and poor reading environment. Recommendations were made such as administration must sure that the least require for academic libraries should be adhered to; Management should provide funds and committee should be enact to oversee the uses of the funds for the major purpose, more professional librarians should be employ for effective and efficiency service delivery, authority should provide photocopying machine within the library environment to facilitate effective service delivery, Internet should be provided among others

Definition of the Viral Targets of Protective HIV-1-Specific T Cell Responses

Background: The efficacy of the CTL component of a future HIV-1 vaccine will depend on the induction ofresponses with the most potent antiviral activity and broad HLA class I restriction. However, current HIV vaccinedesigns are largely based on viral sequence alignments only, not incorporating experimental data on T cellfunction and specificity. Methods: Here, 950 untreated HIV-1 clade B or -C infected individuals were tested for responses to sets of 410overlapping peptides (OLP) spanning the entire HIV-1 proteome. For each OLP, a “protective ratio” (PR) wascalculated as the ratio of median viral loads (VL) between OLP non-responders and responders. Results: For both clades, there was a negative relationship between the PR and the entropy of the OLP sequence.There was also a significant additive effect of multiple responses to beneficial OLP. Responses to beneficial OLPwere of significantly higher functional avidity than responses to non-beneficial OLP. They also had superior in-vitroantiviral activities and, importantly, were at least as predictive of individuals’ viral loads than their HLA class Igenotypes. Conclusions: The data thus identify immunogen sequence candidates for HIV and provide an approach for T cellimmunogen design applicable to other viral infections

Alien Registration- Brume, Veronica (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/24023/thumbnail.jp

Alien Registration- Brume, William M. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/24024/thumbnail.jp