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Petrogenetic study of mesoproterozoic volcanic rocks of North Delhi fold belt, NW Indian shield: implications for mantle conditions during Proterozoic

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Chinese Journal Of Geochemistry 2015年第1期34卷 93-114页

作者： m.s.azam m.shamim Khan m.Raza IGNOU Regional Center Department of Geology AMU

mesoproterozoic North Delhi fold belt of NW Indian shield comprises three volcano-sedimentary basins viz. Bayana, Alwar and Khetri aligned parallel to each other from east to west. Each basin contains excellent exposures of mafic volcanic rocks. major, trace and rare earth element abundances of volcanic rocks of the three basins are significantly diverse. Bayana and Alwar volcanics are tholeiites bearing close similarity with low Ticontinental flood basalts. However, Bayana volcanics are characteristically enriched in incompatible trace elements and REEs while Alwar volcanics display least enriched incompatible trace element abundances and flat REE patterns. The Khetri volcanics exhibit a transitional composition between tholeiite and calc-alkaline basalts. REE based source modeling suggests that Bayana suite was formed from the melts derived from 1 % to 10 %(avg.4 %) of the partial melting of a spinel lherzolite source giving a residual mineralogy of 56 % Olv, 25 % Opx and19 % Cpx. Whereas Alwar suite evolved through 12 %–20 %(avg. 15 %) partial melting of the same source with a residual mineralogy 61 % Olv, 25 % Opx and 14 % *** volcanics are exposed at two localities Kolihan and madhan–Kudhan. The Kolihan volcanics were derived from 1 % to 6 %(avg. 4 %) partial melting with residualmineralogy 56 % Olv, 25 % Opx and 19 % Cpx whereas the magma of madhan Kudhan volcanic suite was generated by 15%–30 % partial melting of the same source leaving behind 64 % Olv, 25 % Opx and 11 % Cpx as residual mineralogy. This source modeling proves that melts of Bayana and Alwar tholeiites were generated by partial melting of a common source within the spinel stability field under the influence of mantle plume. During the course of ascent, Bayana melts were crustally contaminated but Alwar melts remained unaffected. There was two tier magma production in Khetri region, one from the partial melting of the mantle wedge overlying the subducted oceanic plate which formed Kolihan

关键词：基性火山岩中元古代西印度地幔柱褶皱带岩石成因西北地盾

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Innovative dispersion techniques of graphene nanoplatelets(GNPs)through mechanical stirring and ultrasonication:Impact on morphological,mechanical,and thermal properties of epoxy nanocomposites

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Defence Technology(防务技术) 2025年第1期43卷 13-25页

作者： Vasi Uddin siddiqui s.m.sapuan mohd Roshdi Hassan Advanced Engineering materials and Composites Research Centre(AEmC) Department of Mechanical and Manufacturing EngineeringUniversiti Putra MalaysiaUPM SerdangSelangor 43400Malaysia Department of mechanical and manufacturing Engineering Universiti Putra MalaysiaUPM SerdangSelangor 43400Malaysia

Graphene nanoplatelets(GNPs)have attracted tremendous interest due to their unique properties and bonding *** study focuses on the effect of GNP dispersion on the mechanical,thermal,and morphological behavior of GNP/epoxy *** study aims to understand how the dispersion of GNPs affects the properties of epoxy nanocomposite and to identify the best dispersion approach for improving mechanical performance.A solvent mixing technique that includes mechanical stirring and ultrasonication was used for producing the *** transform infrared spectroscopy was used to investigate the interaction between GNPs and the epoxy *** measurements of density and moisture content were used to confirm that GNPs were successfully incorporated into the *** findings showed that GNPs are successfully dispersed in the epoxy matrix by combining mechanical stirring and ultrasonication in a single step,producing well-dispersed nanocomposites with improved mechanical ***,the nanocomposites at a low GNP loading of 0.1 wt%,demonstrate superior mechanical strength,as shown by increased tensile properties,including improved Young's modulus(1.86 GPa),strength(57.31 mPa),and elongation at break(4.98).The nanocomposite with 0.25 wt%GNP loading performs better,according to the viscoelastic analysis and flexural properties(113.18 mPa).Except for the nanocomposite with a 0.5 wt%GNP loading,which has a higher thermal breakdown temperature,the thermal characteristics do not significantly *** effective dispersion of GNPs in the epoxy matrix and low agglomeration is confirmed by the morphological *** findings help with filler selection and identifying the best dispersion approach,which improves mechanical *** effective integration of GNPs and their interaction with the epoxy matrix provides the doorway for additional investigation and the development of sophisticated *** fiel

关键词： Graphene nanoplatelets Epoxy Nanocomposites mechanical properties Thermal properties mechanical stirrer sonication

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Impact of Zika virus non-structural protein mutations on hippocampal damage

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Neural Regeneration Research 2025年第8期20卷 2307-2308页

作者： Larissa m.G.Cassiano Roney s.Coimbra Neurogenômica/Imunopatologia Instituto RenéRachouFiocruzBelo HorizonteBrazil Departamento de Bioquímica e Imunologia Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus(ZIKV),a member of the Flaviviridae family,attracted worldwide attention for its connection to severe neurological effects,notably microcephaly in newborns,first reported during the 2015 epidemic in ***,its impact goes beyond fetal and neonatal abnormalities,also affecting the central nervous system(CNs)in both children and adults,leading to enduring cognitive and behavioral impairments.

关键词： damage fetal neonatal

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Predicting maximum Lifespan Limits at mean menopausal Age

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Journal of mathematical Research with Applications 2025年第1期45卷 133-142页

作者： m.sUmATHI s.ANTONY CARLA Department of mathematics N.M.S.S.Vellaichamy Nadar College Research scholar (Part-time) Madurai Kamaraj University

The age at which a woman enters natural menopause has also been associated to death from any cause. menopause is a natural component of aging that happens between the ages of 45 and 55, with the average menopausal age being 51. Previous research has revealed the age at which women reach menopause, but there is no evidence to support the link between menopause and longevity. We made a study in assessing the limits of maximum lifespan at menopausal age in our previous article. In this paper, we aim to predict the maximum lifespan of women at mean menopausal age.

关键词： menopause mean menopause maximum lifespan scale parameter shape parame-ter aging modified Weibull distribution

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A comprehensive review of phytochemical approaches in treatment of acute myeloid leukemia:Associated pathways and molecular mechanisms

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Chinese Herbal medicines 2025年第1期17卷 41-55页

作者： mouvanal sajana T.s.Gopenath Basalingappa m.Kanthesh Division of molecular Biology School of Life SciencesJSS AHER Department of Biotechnology and Bioinformatics School of Life SciencesJSS AHER

Acute myeloid leukemia(AmL) is a type of cancer that affects the blood and bone *** review conducts a thorough analysis of AmL, addressing its genetic *** examination extends to the current therapeutic approaches employed for AmL,shedding light on their efficacy and the notable side effects experienced by patients undergoing these treatments,leading to a low overall survival ***,exploring alternative treatments,such as phytochemicals,is ***,the review explores the complex landscape of phytochemicals,categorizing them based on their diverse properties,which include alkaloids,phenols,terpenoids,organo-sulfur compounds,and other compounds,including quinones,and elucidating their mechanisms of *** emphasis is placed on their involvement in critical signaling pathways,with a particular focus on how these phytochemicals impact AmL when evaluated across a spectrum of cell *** in-depth exploration aims to uncover potential targets within the molecular landscape of AmL where phytochemicals can exert their therapeutic *** review investigates the potential role of plant-derived phytochemicals as adjunctive therapies for *** exploration encompasses the identification of specific phytochemicals that exhibit promising anti-leukemic properties and evaluates their potential in clinical *** conventional treatments,the review explores the integration of complementary and alternative medicine as a holistic approach to managing *** examination encompasses the synergy between conventional therapies and alternative interventions,exploring how these combined strategies may enhance overall therapeutic outcomes and mitigate side *** a forward-looking perspective,the overarching goal is to contribute to the evolving landscape of AmL treatment by considering innovative approaches that harness the therapeutic potential of phytochemicals,both independently and in conjunction with establishe

关键词： cell death complementary and alternative medicine leukemia phytochemicals signaling pathways therapeutic targets

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Brain-derived neurotrophic factor signaling in the neuromuscular junction during developmental axonal competition and synapse elimination

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Neural Regeneration Research 2025年第2期20卷 394-401页

作者： Josep Tomàs Víctor Cilleros-mañé Laia Just-Borràs marta Balanyà-segura Aleksandra Polishchuk Laura Nadal marta Tomàs Carolina silvera-simón manel m.santafé maria A.Lanuza Unitat d’Histologia i Neurobiologia(UHNeurob) Facultat de Medicina i Ciències de la SalutUniversitat Rovira i VirgiliReusSpain

During the development of the nervous system,there is an overproduction of neurons and *** competition between neighboring nerve endings and synapses performing different activity levels leads to their elimination or *** have extensively studied the involvement of the brain-derived neurotrophic factor-Tropomyosin-related kinase B receptor neurotrophic retrograde pathway,at the neuromuscular junction,in the axonal development and synapse elimination process versus the synapse *** purpose of this review is to describe the neurotrophic influence on developmental synapse elimination,in relation to other molecular pathways that we and others have found to regulate this *** particular,we summarize our published results based on transmitter release analysis and axonal counts to show the different involvement of the presynaptic acetylcholine muscarinic autoreceptors,coupled to downstream serine-threonine protein kinases A and C(PKA and PKC)and voltage-gated calcium channels,at different nerve endings in developmental *** dynamic changes that occur simultaneously in several nerve terminals and synapses converge across a postsynaptic site,influence each other,and require careful studies to individualize the mechanisms of specific *** describe an activity-dependent balance(related to the extent of transmitter release)between the presynaptic muscarinic subtypes and the neurotrophin-mediated TrkB/p75NTR pathways that can influence the timing and fate of the competitive interactions between the different axon *** downstream displacement of the PKA/PKC activity ratio to lower values,both in competing nerve terminals and at postsynaptic sites,plays a relevant role in controlling the elimination of supernumerary ***,calcium entry through L-and P/Q-subtypes of voltage-gated calcium channels(both channels are present,together with the N-type channel in developing nerve terminals)contributes to red

关键词： acetylcholine release adenosine receptors axonal competition brain-derived neurotrophic factor calcium channels motor end-plate muscarinic acetylcholine receptors postnatal synapse elimination serine kinases tropomyosin-related kinase receptorB

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Clinical,laboratory,and therapeutic differences between immunoglobulin E-mediated and non-immunoglobulin E-mediated cow’s milk protein allergy in children

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World Journal of Clinical Pediatrics 2025年第1期14卷 78-92页

作者： Hasan m Isa marwa J Abdulnabi Nawra s Naser Fatema N Lahmda Noor m AlAnsari Zahra H Isa Afaf m mohamed Department of Pediatrics Salmaniya Medical ComplexManama 26671Bahrain Department of Pediatrics Arabian Gulf UniversityManama 26671Bahrain Faculty of medicine Mansoura UniversityMansoura 35516Egypt Public Health Directorate Ministry of HealthManama 26671Bahrain

BACKGROUND Although breast milk is ideal for newborns,in some cases,it is replaced with cow’s milk,which contains proteins that increase the risk of cow’s milk protein allergy(CmPA).AIm To evaluate CmPA prevalence in Bahrain and compare clinical characteristics of children with immunoglobulin E(IgE)-and non-IgE-mediated *** This retrospective cohort study examined children with CmPA diagnosed at the pediatric gastroenterology outpatient clinic of the salmaniya medical Complex,Bahrain,between 2014 and 2022,and assessed CmPA *** presentations,laboratory findings,dietary modifications,and outcomes were compared between children with IgE-mediated and non-IgE-mediated *** variables were compared using Fisher’s exact test or Pearson’sχ2 test,whereas continuous variables were compared using student’s t-test or the mann-Whitney U *** Of 8332 patients,6022(72.3%)adhered to their *** them,618(10.3%)were suggested of having CmPA and 595(96.3%)were included;CmPA prevalence was 2%.most patients were Bahraini(93.8%)and males(55.3%).Non-IgE-mediated type accounted for 77.3%cases and IgE-mediated type,22.7%.IgE-mediated CmPA presented more in boys(P=0.030),and later in life(5.1 months±4.5 months vs 4.2 months±4.2 months,P=0.016,95%CI:0.08-1.73),had more associated diseases(Psented with more cutaneous(P=0.024)and respiratory(P=0.003)manifestations,severe symptoms[rash/dry skin(P=0.031),facial swelling/angioedema(P=0.003),failure to thrive(P=0.013),apparent life-threatening event(Psitive physical findings(P=0.002)than non-IgE-mediated *** patients were exclusively fed cow milk formula(50.3%).The amino acid-based formula(AAF)was most prescribed(60.5%)with no difference between the two types(P=0.173).Although breastfeeding was recommended to 49.6%,only 8.2%were exclusively ***-mediated CmPA was associated with a longer follow-up duration than non-IgE-mediated CmPA(17.3 months±14.0 mo

关键词： Children milk allergy Immunoglobulin E Breastfeeding Infant formula Bahrain

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The stability of some Viable stars and Electromagnetic Field

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Chinese Physics Letters 2016年第7期33卷 25-27页

作者： m.azam s.A.mardan m.A.Rehman Division of science and Technology University of EducationTownship Campus Department of mathematics University of the Management and Technology

We examine the impact of electromagnetic field on the stability of compact stars corresponding to embedded class one metric using the concept of cracking. For this purpose, we develop the generalized hydrostatic equi- librium equation for charged perfect fluid distribution of compact stars and perturb it by means of local density perturbation scheme to check the stability of inner matter configuration. We investigate the cracking of Her X-I, PsR 1937＋21, PsR J 1614-2230, PsR J 0348＋0432 and B.X J 1856-37. We conclude that PsR J 0348＋0432 and RX J 1856-37 exhibit cracking when charge is introduced on these astrophysical objects.

关键词： of in et it on PsR The stability of some Viable stars and Electromagnetic Field for

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Photoluminescence upgradation of La_(2)mgTiO_(6):2%Dy^(3+) perovskite with monovalent(Li^(+)),divalent(Ba^(2+),sr^(2+)) and trivalent(Bi^(3+),sm^(3+))cation sensitization

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Journal of Rare Earths 2025年第1期43卷 47-56,I0002页

作者： V.P.Veena K.Arun C.K.shilpa s.V.Jasira K.m.Nissamudeen school of Pure and Applied Physics Kannur UniversityPayyanur CampusEdatKannurKrala67 India Department of Nanoscience and Nanotechnology Kannur UniversityPayyanur CampusEdatkannurKerala670327India

Nano phosphors of 2%Dy^(3+)(wt%)doped La_(2)mgTiO_(6) and monovalent/divalent/trivalent co-doped La_(1.98)Dy_(0.02)mgTiO_(6):x%A^(y+)(A^(y+):Li+,Ba^(2+),sr^(2+),Bi^(3+),and sm^(3+);0≤x≤2 wt%)were synthesized by combustion *** the XRD data,it is deduced that an increase in the valency of co-dopant increases the crystallinity of the double perovskite orthorhombic nanocrystal *** an increase in co-dopant size,an elevation in optical bandgap is visible with the highest bandgap of 3.835 eV for Bi^(3+).The photo-absorption is monotonically broadened for sr^(2+),sm^(3+),and Li+around 200-450 ***351 nm,Dy^(3+)triggered lattice shows major characteristic emission peaks at 480 nm(^(4)F_(9/2)→^(6)H_(15/2)),574 nm(^(4)F_(9/2)→^(6)H_(13/2)),and 670 nm(^(4)F_(9/2)→^(6)H_(11/2)).leading to near white light emission with CIE coordinates(0.341,0.376).Upon co-doping,the PL intensity is significantly increased with maximum emission for trivalent sm^(3+),followed by divalent sr^(2+)and monovalent Li+*** increasing excitation wavelength,sr^(2+)shows a dominated output and it is found that divalent sr^(2+)is a potential codopant that could enhance luminescence intensity up to 6 times with a sr^(2+)→Dy^(3+)energy transfer efficiency of 86%.It is specified that the CIE coordinates of Li+co-doped samples show ideal white emission with color coordinates(0.333,0.336).The concluding outcomes signify the noblest rare earth sm^(3+)co-doping and thus sm^(3+)→Dy^(3+)energy transfer mechanism is discussed in detail.

关键词： Photoluminescence Perovskite WLED Co-doping Rareearths

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Emerging role of A-kinase anchoring protein 5 signaling in reward circuit function

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Neural Regeneration Research 2025年第10期20卷 2913-2914页

作者： William J.Flerlage mark L.Dell’Acqua Brian m.Cox Fereshteh s.Nugent Uniformed services University of the Health sciences Department of Pharmacology and Molecular TherapeuticsBethesdaMDUSA Department of Pharmacology University of Colorado School of MedicineAnschutz Medical CampusAuroraCOUSA

There is a strong evidence supporting the hypothesis of synaptic dysfunction as a major contributor to neural circuit and network disruption underlying emotional and mood dysregulation in psychiatric disorders(simmons et al.,2024).Diverse sets of distinct molecular signaling pathways converge on the synapse to regulate synaptogenesis,synaptic function,and synaptic plasticity in brain regions and circuits through complex interactions organized by numerous multivalent protein scaffolds,including the family of proteins known as A-kinase anchoring proteins(AKAPs).

关键词： function supporting

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