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Petrogenesis of carbonatitic lamproitic dykes from Sidhi gneissic complex,Central India

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Geoscience Frontiers 2018年第2期9卷 531-547页

作者： m.Satyanarayanan D.V.Subba Rao m.L.Renjith S.P.Singh E.V.S.S.K.Babu m.m.Korakoppa CSIR-National Geophysical Research Institute Hyderabad 500007India Geological Survey of India Hyderabad 500068India Department of Geology Bundelkhand UniversityJhansi 284128India NCEGR Geological Survey of IndiaBengaluru 560070India

Petrographic, mineral chemical and whole-rock geochemical characteristics of two newly discovered lamproitic dykes(Dyke 1 and Dyke 2) from the Sidhi Gneissic Complex(SGC), Central India are presented here. Both these dykes have almost similar sequence of mineral-textural patterns indicative of:(1) an early cumulate forming event in a deeper magma chamber where megacrystic/large size phenocrysts of phlogopites have crystallized along with subordinate amount of olivine and clinopyroxene;(2) crystallization at shallow crustal levels promoted fine-grained phlogopite, K-feldspar, calcite and Fe-Ti oxides in the groundmass;(3) dyke emplacement related quench texture(plumose K-feldspar, acicular phlogopites) and finally(4) post emplacement autometasomatism by hydrothermal fluids which percolated as micro-veins and altered the mafic phases. Phlogopite phenocrysts often display resorption textures together with growth zoning indicating that during their crystallization equilibrium at the crystal-melt interface fluctuated multiple times probably due to incremental addition or chaotic dynamic self mixing of the lamproitic magma. Carbonate aggregates as late stage melt segregation are common in both these dykes, however their micro-xenolithic forms suggest that assimilation with a plutonic carbonatite body also played a key role in enhancing the carbonatitic nature of these dykes. Geochemically both dykes are ultrapotassic(K_2 O/Na_2 O: 3.0-9.4) with low CaO, Al_2 O_3 and Na_2 O content and high SiO_2(53.3-55.6 wt.%)and K_2 O/Al_2 O_3 ratio(0.51-0.89) characterizing them as high-silica lamproites. Inspite of these similarities, many other features indicate that both these dykes have evolved independently from two distinct magmas. In dyke 1, phlogopite composition has evolved towards the minette trend(Al-enrichment) from a differentiated parental magma having low mgO, Ni and Cr content; whereas in dyke 2, phlogopite composition shows an evolutionary affinity towards the lamproit

关键词： Lamproite Phlogopite Carbonate aggregates metasomatized mantle Sidhi Gneissic Complex Central India

Network Intrusion Detection Based on Feature Selection and Hybrid metaheuristic Optimization

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Computers, materials & Continua 2023年第2期74卷 2677-2693页

作者： Reem Alkanhel El-Sayed m.El-kenawy Abdelaziz A.Abdelhamid Abdelhameed Ibrahim manal Abdullah Alohali mostafa Abotaleb Doaa Sami Khafaga Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Communications and Electronics Delta Higher Institute of Engineering and TechnologyMansoura35111Egypt Department of Computer Science Faculty of Computer and Information SciencesAin Shams UniversityCairo11566Egypt Department of Computer Science College of Computing and Information TechnologyShaqra University11961Saudi Arabia Computer Engineering and Control Systems Department Faculty of EngineeringMansoura UniversityMansoura35516Egypt Information Systems Department College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of System Programming South Ural State UniversityChelyabinsk454080Russia Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia

Applications of internet-of-things(IoT)are increasingly being used in many facets of our daily life,which results in an enormous volume of *** computing and fog computing,two of the most common technologies used in IoT applications,have led to major security *** are on the rise as a result of the usage of these technologies since present security measures are *** artificial intelligence(AI)based security solutions,such as intrusion detection systems(IDS),have been proposed in recent *** technologies that require data preprocessing and machine learning algorithm-performance augmentation require the use of feature selection(FS)techniques to increase classification accuracy by minimizing the number of features *** the other hand,metaheuristic optimization algorithms have been widely used in feature selection in recent *** this paper,we proposed a hybrid optimization algorithm for feature selection in *** proposed algorithm is based on grey wolf(GW),and dipper throated optimization(DTO)algorithms and is referred to as *** proposed algorithm has a better balance between the exploration and exploitation steps of the optimization process and thus could achieve better *** the employed IoT-IDS dataset,the performance of the proposed GWDTO algorithm was assessed using a set of evaluation metrics and compared to other optimization approaches in 2678 CmC,2023,vol.74,no.2 the literature to validate its *** addition,a statistical analysis is performed to assess the stability and effectiveness of the proposed *** results confirmed the superiority of the proposed approach in boosting the classification accuracy of the intrusion in IoT-based networks.

关键词： Feature selection grey wolf optimization dipper throated optimization intrusion detection internet-of-things(IoT)

Lineage plasticity-mediated therapy resistance in prostate cancer

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Asian Journal of Andrology 2019年第3期21卷 241-248页

作者： Alexandra m Blee Haojie Huang Department of Biochemistry and molecular Biology Mayo Clinic College of Medicine Rochester MN 55905 USA Biochemistry and molecular Biology Graduate Program Mayo Clinic Graduate School of Biomedical Sciences Rochester MN 55905 USA Department of Urology Mayo Clinic College of Medicine Rochester MN 55905 USA mayo Clinic Cancer Center Mayo Clinic College of Medicine Rochester MN 55905 USA

Therapy resistance is a significant challenge for prostate cancer treatment in clinic. Although targeted therapies such as androgen deprivation and androgen receptor (AR) inhibition are effective initially, tumor cells eventually evade these strategies through multiple mechanisms. Lineage reprogramming in response to hormone therapy represents a key mechanism that is increasingly observed. The studies in this area have revealed specific combinations of alterations present in adenocarcinomas that provide cells with the ability to transdifferentiate and perpetuate AR-independent tumor growth after androgen-based therapies. Interestingly, several master regulators have been identified that drive plasticity, some of which also play key roles during development and differentiation of the cell lineages in the normal prostate. Thus, further study of each AR-independent tumor type and understanding underlying mechanisms are warranted to develop combinational therapies that combat lineage plasticity in prostate cancer.

关键词： lineage plasticity neuroendocrine prostate cancer therapy resistance transdifferentiation

Clinicobiochemical investigations of gangrenous mastitis in does:immunological responses and oxidative stress biomarkers

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第1期14卷 33-39页

作者： Wael m.EL-DEEB Department of Clinical Studies College of Veterinary Medicine and Animal ResourcesKing Faisal University Department of Veterinary medicine Infectious Diseases and Fish DiseasesFaculty of Veterinary MedicineMansoura University

A total of 50 does were used to determine selected hematological and biochemical parameters with special references to oxidative stress markers,acute phase protein profiles,and proinflammatory cytokines in healthy and gangrenous mastitis affected *** were divided into two equal groups represented as clinically healthy(control) and diseased groups,*** bacteriological examination of milk samples from diseased does revealed many types of bacterial *** isolated bacteria were Staphylococcus aureus(N=23/25),Escherichia coli(N=11/25),and Clostridium perfringens(N=4/25).There was a significant increase in the levels of β-hydroxybutyrate,non-esterified free fatty acids,triglyceride,low density lipoprotein cholesterol(LDL-C),aspartate aminotransferase,and alanine aminotransferase and a significant reduction in the levels of glucose,cholesterol,and high density lipoprotein cholesterol(HDL-C) in does with gangrenous mastitis compared to healthy ***,there was a significant increase in the levels of malondialdehyde and uric acid with a significant decrease in the levels of reduced glutathione,super oxide dismutase,and catalase in does with gangrenous mastitis compared to healthy *** addition,there was a significant increase in the haptoglobin,serum amyloid A,fibrinogen,interleukin 6(IL-6),IL-1β,and tumor necrosis factor-α(TNF-α) in does with gangrenous mastitis compared to healthy ***,oxidative stress biomarkers,acute phase proteins,and proinflammatory cytokines play an essential task as biomarkers for gangrenous mastitis in *** may be considered as one of the ketotic stressors in does after parturition.

关键词：肿瘤临床治疗乳腺癌

The boring billion? - Lid tectonics, continental growth and environmental change associated with the Columbia supercontinent

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Geoscience Frontiers 2013年第6期4卷 681-691页

作者： Nick m.W.Roberts NERC Isotope Geosciences Laboratory British Geological SurveyKeyworthNottingham NG12 5GGUK

The evolution of Earth＇s biosphere,atmosphere and hydrosphere is tied to the formation of continental crust and its subsequent movements on tectonic *** supercontinent cycle posits that the continental crust is periodically amalgamated into a single landmass,subsequently breaking up and dispersing into various continental *** is possibly the first true supercontinent,it amalgamated during the 2.0-1.7 Ga period,and collisional orogenesis resulting from its formation peaked at 1.95-1.85 *** and palaeomagnetic evidence indicate that Columbia remained as a quasi-integral continental lid until at least 1.3 *** break-up attempts are evidenced by dyke swarms with a large temporal and spatial range; however,palaeomagnetic and geologic evidence suggest these attempts remained *** than dispersing into continental fragments,the Columbia supercontinent underwent only minor modifications to form the next supercontinent （Rodinia） at 1.1 -0.9 Ga; these included the transformation of external accretionary belts into the internal Grenville and equivalent collisional *** Columbia provides evidence for a form of ‘lid tectonics’,modern style plate tectonics occurred on its periphery in the form of accretionary *** detrital zircon and preserved geological record are compatible with an increase in the volume of continental crust during Columbia＇s lifespan; this is a consequence of the continuous accretionary processes along its *** quiescence in plate tectonic movements during Columbia＇s lifespan is correlative with a long period of stability in Earth＇s atmospheric and oceanic *** variability starting at 1.3 Ga in the environmental record coincides with the transformation of Columbia to Rodinia; thus,the link between plate tectonics and environmental change is strengthened with this interpretation of supercontinent history.

关键词： Rodinia Columbia Supercontinents Continental growth Lid tectonics mesoproterozoic

ENTROPY FUNCTIONAL FOR CONTINUOUS SYSTEmS OF FINITE ENTROPY

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Acta mathematica Scientia 2012年第2期32卷 775-782页

作者： m.Rahimi A.Riazi Department of mathematics Amirkabir University of TechnologyTehranIran

In this article, we introduce the concept of entropy functional for continuous systems on compact metric spaces, and prove some of its properties. We also extract the Kolmogorov entropy from the entropy functional.

关键词： Entropy entropy functional invaxiant

Soil Contamination due to E-Waste Disposal and Recycling Activities: A Review with Special Focus on China

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Pedosphere 2012年第4期22卷 434-455页

作者： m. O. SImONNOT Laboratoire Réactions et Génie des Procédés (LRGP) Université de Lorraine-CNRS (UPR 3349) 1 Rue Grandville BP20451 54001 Nancy Cedex (France)

This paper presents a review of soil contamination resulting from e-waste recycling activities, with a special focus on China, where many data have been collected for a decade. Soils in the e-waste areas are often contaminated by heavy metals and organic compounds, mainly polycyclic aromatic hydrocarbons (PAHs), polybrominated diphenyl ethers (PBDEs), polychlorinated and polybrominated biphenyls (PCBs and PBBs), dechlorane plus (DP), hexabromocyclododecanes (HBCDs), polychlorinated and polybrominated dibenzo- p-dioxins (PCDDs and PBDDs), and polychlorinated and polybrominated dibenzofurans (PCDFs and PBDFs), while other compounds, not systematically monitored, can be found as well. Pollutants are generally present in mixtures, so pollution situations are complex and diversified with a gradient of contamination from agricultural soils to hot spots at e-waste sites and mainly in open burning areas. It has been proved that pollutants were transferred to the food chain via rice in China, and that the population was threatened since high levels of various pollutants were detected in blood, placentas, hair, etc., of residents of e-waste sites. Eventually, soil remediation techniques are reviewed. Although there are many available techniques devoted to heavy metals and persistent organic pollutants, the current techniques for the e-waste sites, where these contaminants coexist, are very sparse. Phytoremediation has been investigated and co-cropping appears as a promising approach for the slightly contaminated agricultural soils. In some cases, different remediation techniques should be combined or trained, while the influence of coexisting contaminants and the removal sequence of contaminants should be considered. In hot spots, physical and chemical techniques should be used to reduce high pollution levels to prevent further pollutant dissemination. This review highlights the urgent needs for 1) characterization of pollution status in all the countries where e-wastes are r

关键词： co-cropping heavy metals organic compounds pollution remediation

Synthesis and Spectroscopic Characterizations of New mercury(Ⅱ), Cerium(Ⅲ), and Thorium(Ⅳ) Captopril Drug Complexes

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光谱学与光谱分析 2020年第11期40卷 3649-3652页

作者： Samy m.El-megharbel moamen S.Refat Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Department of Chemistry Faculty of ScienceZagazig UniversityZagazigEgypt Department of Chemistry Faculty of SciencePort Said UniversityPort SaidEgypt

In this article, three types of metal ions with different oxidation state as mercury(Ⅱ), cerium(Ⅲ) thorium(Ⅳ) have been reacted with captopril drug(CAP). The isolated solid complexes were explained using elemental analysis, conductance measurements, infrared and 1H-NmR spectroscopy as well as the thermo gravimetric(TG/DTG) analysis. The micro analytical and spectroscopic results for all CAP complexes were agreement with the speculated structures. The stoichiometry for divalent Hg^2+, trivalent Ce^3+ and tetravalent Th(4+) metal ions with CAP ligand was established with 1∶2(m(n+):CAP) molar ratio. The qualitative analysis showed that in case of the mercury(Ⅱ) complex, the chloride ions didn't involved in the complexity, suggesting formula [Hg(CAP)2] in neutral form. However, regarding both Ce(Ⅲ) and Th(Ⅳ) complexes as [Ce(CAP)2(NO3)]·3 H2O and [Th(CAP)2(NO3)2(H2O)]·3 H2O formulas, the nitrate group is existed inside the coordination sphere. The infrared analysis data proved that CAP drug act as a bidentate ligand with the metal ions of Ce(Ⅲ) and Th(Ⅳ) through oxygen carbonyl group C=O and oxygen of the deprotonated carboxylic COOH group, while for the Hg(Ⅱ) complex, the CAP acts as a bidentate ligand through oxygen of C=O group and sulfur atom of the deprotonated -SH group. Thorium(Ⅵ) complex has a nine-coordinate geometry, while Hg(Ⅱ) and Ce(Ⅲ) have a four and six-coordination behaviors respectively. The 1H-NmR data of the CAP compound has a singlet sharp signal at 1.90 ppm due to the proton of -SH group, this peak absent in the spectrum of the Hg(Ⅱ) CAP complex upon the deprotonated of thiol group.

关键词： Captopril drug metal ions FTIR 1H-NmR

Dark Energy models and Cosmic Acceleration with Anisotropic Universe in f(T) Gravity

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Communications in Theoretical Physics 2014年第4期61卷 482-490页

作者： m.Sharif Sehrish Azeem Department of mathematics University of the PunjabQuaid-e-Azam Campus

This paper is devoted to studing the accelerated expansion of the universe in context of f(T) theory of gravity. For this purpose, we construct different f(T) models and investigate their cosmological behavior through equation of state parameter by using holographic, new agegraphic and their power-law entropy corrected dark energy models. We discuss the graphical behavior of this parameter versus redshift for particular values of constant parameters in Bianchi type I universe model. It is shown that the universe lies in different forms of dark energy, namely quintessence,phantom, and quintom corresponding to the chosen scale factors, which depend upon the constant parameters of the models.

关键词：宇宙加速膨胀能量模型各向异性重力参数方程宇宙模型比例因子宇宙学