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暹罗湾三维地震地层学的典型实例

国外油气勘探 1985年第6期 29-33页

作者： a.r.brown 陈维宝

1977年8月地球物理服务公司在暹罗湾进行了海上三维地震测量工作。达海(Dahm)和格勃纳(1979,1980)对这些测量成果和构造解释进行了探讨。这篇论文主要讨论三维地震资料的地层学信息的解释问题。新的三维解释方法扩展了布朗(brown)在197... 详细信息

1977年8月地球物理服务公司在暹罗湾进行了海上三维地震测量工作。达海(Dahm)和格勃纳(1979,1980)对这些测量成果和构造解释进行了探讨。这篇论文主要讨论三维地震资料的地层学信息的解释问题。新的三维解释方法扩展了布朗(brown)在1979年讨论的方法。这个成果有利于提高对该区沉积史的认识和有利于更深入地了解天然烃类圈闭的特征。

关键词：砂坝砂层地层学水平时间切片河道振幅图地震层位不整合面三角洲河谷地貌同相轴含气砂岩水平切片构造解释数据体中新统振幅异常第三系

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天然气储层地震响应中的调谐效应

油气藏评价与开发 1988年第1期 81-90页

作者： a.r.brown r.M.Wright K.D.Butkart 孙大明

在墨西哥湾天然气储层的研究中,综合利用三维地震数据、子波处理、彩色显示和交互解释。用地震振幅直接测量可能产气储层砂岩/页岩比例。再用这个比例去绘制产气砂岩真实厚度图。详细研究仅由几何效应引起的调谐现象,并用各级水平的混... 详细信息

在墨西哥湾天然气储层的研究中,综合利用三维地震数据、子波处理、彩色显示和交互解释。用地震振幅直接测量可能产气储层砂岩/页岩比例。再用这个比例去绘制产气砂岩真实厚度图。详细研究仅由几何效应引起的调谐现象,并用各级水平的混合信号调谐曲线作为振幅辑编的基准,由交互交会图法得到统计调谐曲线,由子波提取得到确定调谐曲线。多个子波旁瓣在调谐曲线上引起多个极值。也可以通过交互交会图法来研究沉积效应及层间联络。

关键词：振幅响应零相位调谐厚度地层砂岩储层含气砂岩交会图法储层砂岩调谐曲线子波地震波天然气储层

A review of public health guidelines for postpartum physical activity and sedentary behavior from around the world

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Journal of Sport and Health Science 2024年第4期13卷 472-483,F0003页

作者： Kelly r.Evenson Wendy J.brown Alison K.Brinson Emily Budzynski-Seymour Melanie Hayman Department of Epidemiology Gillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNC 27599-8050USA Faculty of Health Sciences and Medicine Bond UniversityGold CoastQLD 4226Australia School of Human Movement and Nutrition Sciences The University of QueenslandBrisbaneQLD 4072Australia Department of Anthropology University of North Carolina at Chapel HillChapel HillNC 27599-3115USA Carolina Population Center University of North Carolina at Chapel HillChapel HillNC 27599-8120USA Faculty of Sport Health and Social SciencesSolent UniversitySouthamptonSO140YNUK Appleton Institute School of HealthMedical and Applied SciencesCentral Queensland UniversityRockhamptonQLD 4701Australia

Background:The period following pregnancy is a critical time window when future habits with respect to physical activity(PA) and sedentary behavior(SB) are established;therefore,it warrants *** purpose of this scoping review was to summarize public health-oriented country-specific postpartum PA and SB guidelines ***:To identity guidelines published since 2010,we performed a(a) systematic search of 4 databases(CINAHL,Global Health,PubMed,and SPOrTDiscus),(b) structured repeatable web-based search separately for 194 countries,and(c) separate web-based *** the most recent guideline was included for each ***:We identified 22 countries with public health-oriented postpartum guidelines for PA and 11 countries with SB *** continents with guidelines included Europe(n=12),Asia(n=5),Oceania(n=2),Africa(n=1),North America(n=1),and South America(n=1).The most common benefits recorded for PA included weight control/management(n=10),reducing the risk of postpartum depression or depressive symptoms(n=9),and improving mood/well-being(n=8).Postpartum guidelines specified exercises to engage in,including pelvic floor exercises(n=17);muscle strengthening,weight training,or resistance exercises(n=13);aerobics/general aerobic activity(n=13);walking(n=11);cycling(n=9);and swimming(n=9).Eleven guidelines remarked on the interaction between PA and breastfeeding;several guidelines stated that PA did not impact breast milk quantity(n=7),breast milk quality(n=6),or infant growth(n=3).For SB,suggestions included limiting long-term sitting and interrupting sitting with ***:Country-specific postpartum guidelines for PA and SB can help promote healthy behaviors using a culturally appropriate context while providing specific guidance to public health practitioners.

关键词： Breastfeeding Caesarean section Guidelines Postnatal recommendations

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断层切片——解释断层细节的新方法

地球物理学进展 1988年第Z1期 120-120页

作者： a.r.brown 刘红斌

断层横切一个油气藏的方式,影响生产,因此对它必须有特别详细的了解。三维地震数据集,能够相互作用地切成薄片,从而产生一系列与断层面平行的地震剖面。然后用这些断层切片可以通过几种方法对断层进行研究。在断层切片上对有关层位进行... 详细信息

断层横切一个油气藏的方式,影响生产,因此对它必须有特别详细的了解。三维地震数据集,能够相互作用地切成薄片,从而产生一系列与断层面平行的地震剖面。然后用这些断层切片可以通过几种方法对断层进行研究。在断层切片上对有关层位进行追踪,可得到一张断层落差图,并可将断层落差作为垂直走时和水平位置的函数来研究。因为一个断层

关键词：断层切片主断层地震剖面地震记录剖面

Biomarker bust:meta-analyses reveal unreliability of neuronal extracellular vesicles for diagnosing parkinsonian disorders

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Neural regeneration research 2025年第1期20卷 201-202页

作者： Hash brown Taha Leonard Davis School of Gerontology University of Southern CaliforniaLos AngelesCAUSA

A range of neurodegenerative disorders,collectively termed parkinsonian disorders,present with a complex array of both motor and non-motor *** in this group are Parkinson’s disease(PD),dementia with Lewy bodies(DLB),multiple system atrophy(MSA),corticobasal syndrome(CBS),and progressive supranuclear palsy(PSP).These disorders are differentiated neuropathologically by their dominant protein pathologies involvingα-synuclein(α-syn)and/or tau,the types of brain cells affected,such as neurons,oligodendroglia,and astrocytes,and the specific brain regions involved(Tolosa et al.,2021).

关键词： disorders parkin

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Gene therapy for spinal muscular atrophy:perspectives on the possibility of optimizing SMN1 delivery to correct all neurological and systemic perturbations

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Neural regeneration research 2025年第7期20卷 2011-2012页

作者： Sharon J.brown rafael J.Yáñez-Muñoz Heidi r.Fuller School of Pharmacy and Bioengineering Keele UniversityKeeleUK Wolfson Center for Inherited Neuromuscular Disease TORCH BuildingRJAH Orthopaedic HospitalOswestryUK *** Center of Gene and Cell TherapyDepartment of Biological SciencesSchool of Life Sciences and the EnvironmentRoyal Holloway University of LondonEghamUK

Spinal muscular atrophy(SMA)is a genetic condition that results in selective lower motor neuron loss with concomitant muscle weakness and *** genetic cause of SMA was understood in 1995 when loss or impairment of the survival motor neuron 1(SMN1)gene was identified as the main contributing factor(Lefebvre et al.,1995).This,in combination with the discovery that humans have a“back-up”gene,SMN2,which can produce low levels(approximately 10%)of the full-length functional SMN protein,has led to the generation of SMA-specific gene *** was traditionally classified according to age of symptom onset and developmental milestones achieved,with life expectancy and severity varying between ***,SMN2 copy number is used as a proxy for the prediction of disease severity,with higher SMN2 copy number typically being associated with reduced severity of SMA,although this relationship is not absolute:some individuals with low SMN2 copy number have less severe SMA phenotypes and vice ***,the etiology of SMA is further complicated by other factors,such as non-typical nucleotide variants and SMN2-independent modifiers of disease severity.

关键词： atrophy traditionally absolute

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Wildfire severity alters soil microbial exoenzyme production and fungal abundances in the southern Appalachian Mountains

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Pedosphere 2024年第5期34卷 865-878页

作者： Megan L.SCHILL richard BAIrD Shawn P.brown Allison M.VEACH Department of Integrative Biology University of Texas at San Antonio Biochemistry Molecular Biology Entomology and Plant Pathology Department Mississippi State University Department of Biological Sciences The University of Memphis

Climate change has increased drought frequency and duration that are exacerbated by increased temperatures globally. This effect has, and will continue,to increase fire occurrence across many regions of North America. In the southern Appalachian Mountains, wildfires with high burn severity occurred in 2016due to increased drought and human activity. To investigate the effects of burn severity on soil physicochemical properties, microbial extracellular enzyme production, and microbial abundances in a temperate region, surface soils (0–15 cm) were collected from two sites (the Great Smoky Mountains National Park in Tennessee and the Nantahala National Forest in North Carolina, USA) spanning lightly, moderately, and severely burned areas, accompanied by adjacent unburned locations that act as controls. The soil samples were collected at three time points between 2017 and 2019 (i.e., 0.5, 1, and 2.5 years post-fire)among burn severity plots. Total hydrolytic enzyme production varied over time, with severe burn plots having significantly lower enzyme production at 2.5years post-fire. Individual enzymes varied among burn severities and across time post-fire. Light burn plots showed greater carbon-specific (β-glucosidase and β-xylosidase) and phosphorus-specific (acid phosphatase) enzyme activities at 0.5 years post-fire, but this effect was transient. At 2.5 years post-fire, theβ-xylosidase and acid phosphatase activities were lower in severe or moderate burn plots relative to the controls. In contrast, the activity of nitrogen-specific enzyme leucyl aminopeptidase was the lowest in severe burn plots at 0.5 years post-fire, but was the lowest in light burn plots at 2.5 years post-fire. The fungi:bacteria ratio declined with burn severity, indicating that fungi are sensitive or less resilient to high burn severity during recovery. These results suggest that wildfires alter trajectories for soil microbial structure and function within a 2.5-year timeframe, which potentially

关键词： 16S rrNA burn severity extracellular enzyme fungi:bacteria ratio internal transcribed spacer microbial structure

Projective Hilbert modules and sequential approximations

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Science China Mathematics 2024年

作者： Lawrence G.brown Huaxin Lin Department of Mathematics Purdue University Department of Mathematics East China Normal University Department of Mathematics University of Oregon

We show that when A is a separable C*-algebra, every countably generated Hilbert A-module is projective(with bounded module maps as morphisms). We also study the approximate extensions of bounded module maps. In the case where A is a σ-unital simple C*-algebra with strict comparison, and every strictly positive lower semicontinuous affine function on quasitraces can be realized as the rank of an element in the Cuntz semigroup, we show that the Cuntz semigroup is equivalent to unitarily equivalent classes of countably generated Hilbert A-modules if and only if A has stable rank one.

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