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Earliest megafossils of scandent calamoid palms from the Deccan Intertrappean Beds of Central India and their paleobiogeographic implications

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Journal of Palaeogeography 2024年第3期13卷 509-527页

作者： Sanchita Kumar Kaustav Roy Robert A.Spicer Mahasin ali Khan Palaeobotany and Palynology Laboratory Department of BotanySidho-Kanho-Birsha UniversityRanchi RoadPurulia-723104India CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303Yunnan ProvinceChina School of Environment Earth and Ecosystem SciencesThe Open UniversityMilton KeynesMK76AAUK State Key Laboratory of Tibetan Plateau Earth System Resources and Environment(TPESRE)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China

Two well-preserved petrified palm stems from the latest Maastrichtian(Late Cretaceous) to earliest Danian(Early Paleocene) sediments of the Deccan Intertrappean Beds of Madhya Pradesh, Central India are described. Their significant anatomical characteristics include a Calamus-type general stem pattern,the presence of well-preserved fibrovascular bundles(fvbs) with two wide metaxylem vessel elements(230 μm-250 μm) and one phloem strand, uniform density of fvbs, lack of continuity between protoxylem and metaxylem vessel elements, and an absence of centrifugal differentiation of sclerenchymatous fibrous *** features reveal a close resemblance to those of extant genera of scandent Calamoideae. The permineralized stems are described as a new species namely, Palmoxylon calamoides Kumar, Roy et Khan sp. *** fossils represent the oldest reliable fossil records of this family, supporting their Gondwanan origin, their importance in tracing their migration pathways from India to Europe and other continents after the docking of the Indian subcontinent with Eurasia during the Paleocene, and an “Out-of-India” dispersal hypothesis. Today the subfamily Calamoideae is disjunctly occurred in Africa, Asia, Australia, Europe, and South America, but the poor deep-time fossil record of this subfamily with a small number of Cenozoic fossils makes hypotheses concerning its origin and dispersal difficult to evaluate. The present study has significant implications for the origin and migration of this subfamily and the paleoclimate.

关键词： Scandent Calamoideae Stem anatomy K-Pg Paleobiogeography Paleoclimate Central India

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Simulation-based assessment for the emergency medicine milestones: a national survey of simulation experts and program directors

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World Journal of Emergency Medicine 2024年第4期15卷 301-305页

作者： Afrah A ali Ashley Crimmins Hegang Chen Danya Khoujah Department of Emergency Medicine University of Maryland School of MedicineBaltimore 21201USA Department of Epidemiology and Public Health University of Maryland School of MedicineBaltimore 21201USA Department of Emergency Medicine AdventHealth TampaTampa 33606USA

The focus of outcome-based education has shifted from the process of training to the end“product”of *** has necessitated a reframing of the teaching,learning,and ***,in 2013,the Accreditation Council for Graduate Medical Education(ACGME)implemented the educational milestones for all accredited residencies and fellowship programs.[1]The milestones have been described as“developmentally based,specialty-specific achievements that residents are expected to demonstrate at established intervals as they progress through training.”[1]Milestones are based on the six core competencies established by the ACGME and American Board of Medical Specialties(ABMS),which consist of medical knowledge(mk),patient care(PC),interpersonal and communication skills(ICS),practice-based learning and improvement(PBLI),professionalism(PROF),and systems-based practice(SBP).[2,3]ACGME,in conjunction with the American Board of Emergency Medicine(ABEM),drafted 23 detailed subcompetencies relevant to emergency medicine(EM).[4]

关键词： Miles milestone education

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不同类别抗高血压药物使用者心血管事件的比较:系统评价和网络荟萃分析

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中华高血压杂志 2021年第1期29卷 80-80页

作者：刘青(译) 刘莉(摘/审校) Wei J Galaviz KI Kowalski AJ Magee MJ Haw JS Narayan KMV ali mk 不详

已证实降压药物与心血管病事件的预防相关,但人们对不同类别降压药物有效性的差异知之甚少。该文比较高血压患者和无实质性合并症患者的同期首次心血管事件的汇总情况。研究者系统搜索PubMed、Embase和Cochrane图书馆数据库1990年1月1日... 详细信息

已证实降压药物与心血管病事件的预防相关,但人们对不同类别降压药物有效性的差异知之甚少。该文比较高血压患者和无实质性合并症患者的同期首次心血管事件的汇总情况。研究者系统搜索PubMed、Embase和Cochrane图书馆数据库1990年1月1日至2017年10月24日发表的文章,选择纳入常用抗高血压药物(血管紧张素转换酶抑制药、二氢吡啶类钙通道阻滞剂、非二氢吡啶类钙通道阻滞剂、β受体阻滞剂、血管紧张素受体阻滞药和利尿剂)并在至少6个月随访后报告选定的心血管结局的随机临床试验。研究分析于2017年10月至2019年12月进行。

关键词：降压药物心血管事件随机临床试验抗高血压药物血管紧张素转换酶抑制药荟萃分析心血管病事件合并症患者

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在中国西藏边远地区和印度Haryana地区进行心血管高危人群简化规范管理:一项集群随机对照研究

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中华高血压杂志 2015年第7期23卷 607-607页

作者：李金凤叶鹏 Tian M Ajay V Dunzhu D Hameed S Li X Liu Z Li C Chen H Cho K Li R Zhao X Jindal D Rawal I ali mk Peterson ED Ji J Amarchand R Krishnan A Tandon N Xu LQ Wu Y Prab-hakaran D Yan L

在中国和印度边远地区，治疗心血管病的经济负担十分沉重，但是这些地区经济落后，医疗保健资源有限。该研究旨在设计和评估由社区医护人员（community health workers，CHW）实施，

关键词：边远地区心血管病随机对照研究高危人群印度中国集群管理

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Thermal Conductivity of Low-Density Polyethylene Foams Part Ⅱ: Deep Investigation using Response Surface Methodology

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Journal of Thermal Science 2020年第1期29卷 159-168页

作者： HASANZADEH Rezgar AZDAST Taher DONIAVI ali Department of Mechanical Engineering Urmia University

Here,we conducted a deep study on the thermal insulation performance of polymeric foams using response surface methodology(RSM).Cell size,foam density,and cell wall thickness were considered as variable *** of variance(ANOVA)tool was utilized to recognize the effective parameters on the different mechanisms of heat *** models were presented to forecast the different mechanisms of heat transfer and their validities were checked using ANOVA tool as well as compared to the thermal conductivity *** plots were used to study the interaction effect of significant *** optimization procedure was performed using *** density and cell wall thickness are effective parameters on the solid thermal conductivity whereas cell size and foam density were significant parameters on the thermal *** decreasing foam density,gaseous thermal conductivity and thermal radiation were increased and solid thermal conductivity was *** regression model predicted the overall thermal conductivity with an average error smaller than 3%.The results illuminated that the overall thermal conductivity in the optimum conditions was as small as 29 mW/mk.

关键词： thermal insulation polymer foams response surface methodology

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Siwalik plant megafossil diversity in the Eastern Himalayas: A review

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Plant Diversity 2023年第3期45卷 243-264页

作者： Mahasin ali Khan Sumana Mahato Robert A.Spicer Teresa E.V.Spicer Ashif ali Taposhi Hazra Subir Bera Palaeobotany and Palynology Laboratory Department of BotanySidho-Kanho-Birsha UniversityRanchi RoadPurulia 723104India CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303PR China School of Environment Earth and Ecosystem SciencesThe Open UniversityMilton KeynesMK76AAUK Centre of Advanced Study Department of BotanyUniversity of Calcutta35B.C.RoadKolkata 700019India

The Eastern Himalayas are renowned for their high plant *** understand how this modern botanical richness formed,it is critical to investigate past plant biodiversity preserved as fossils throughout the eastern Himalayan Siwalik succession(middle Miocene-early Pleistocene).Here,we present a summary of plant diversity records that document Neogene floristic and climate *** do this by compiling published records of megafossil plant remains,because these offer better spatial and temporal resolution than do palynological *** of the Siwalik floral assemblages based on the distribution of the nearest living relative taxa suggest that a tropical wet evergreen forest was growing in a warm humid monsoonal climate at the deposition *** qualitative interpretation is also corroborated by published CLAMP(Climate Leaf Analysis Multivariate Program) ***,we also reconstruct the climate by applying a new common proxy WorldClim2 *** allows the detection of subtle climate differences between floral assemblages free of artefacts introduced by using different methodologies and climate *** analysis of the Siwalik floras indicates that there was a gradual change in floral *** lower Siwalik assemblages provide evidence of a predominance of evergreen *** increase in deciduous elements in the floral composition is noticed towards the close of the middle Siwalik and the beginning of the upper Siwalik *** change reflects a climatic difference between Miocene and Plio-Pleistocene *** review helps us to understand under what paleoenvironmental conditions plant diversity occurred and evolved in the eastern Himalayas throughout the Cenozoic.

关键词： Megafossils Siwalik MiocenePleistocene Palaeovegetation Palaeoenvironment Eastern Himalayas

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Coryphoid palms from the K-Pg boundary of central India and their biogeographical implications:Evidence from megafossil remains

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Plant Diversity 2023年第1期45卷 80-97页

作者： Sanchita Kumar Taposhi Hazra Robert A.Spicer Manoshi Hazra Teresa E.V.Spicer Subir Bera Mahasin ali Khan Palaeobotany and Palynology Laboratory Department of BotanySidho-Kanho-Birsha UniversityRanchi RoadPurulia 723104India CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303PR China School of Environment Earth and Ecosystem SciencesThe Open UniversityMilton Keynes MK76AAUK Centre of Advanced Study Department of BotanyUniversity of Calcutta35B.C.RoadKolkata 700019India

Ten palm leaf impressions are documented from the latest Maastrichtian(late Cretaceous) to early Danian(earliest Paleocene) sediments(K-Pg,c.66-64 Ma) of the Mandla Lobe of the Deccan Intertrappean Beds,Madhya Pradesh,central *** palmate leaf shape along with a definite wellpreserved costa support their placement in the subfamily Coryphoideae of the family *** place all recovered palm leaf specimens in the fossil genus Sabalites,report seven species of coryphoid palms and describe two new species namely,Sabalities umariaensis *** Sabalites ghughuaensis *** fossils indicate that coryphoid palms were highly diverse in central India by the latest *** and earlier reported coryphoid palm fossils from the same locality indicate that they experienced a warm and humid tropical environment during the time of *** discoveries confirm the presence of a diversity of Coryphoideae in Gondwana prior to the India-Eurasia collision and provide information about coryphoid biogeographical history over geological *** on megafossil remains,we trace coryphoid palm migration pathways from India to mainland Southeast(SE) Asia and other parts of Asia after the docking of the Indian subcontinent with Eurasia early in the Paleogene.

关键词： Coryphoideae Leaf fossils Late cretaceous-early paleocene Paleobiogeography Paleoclimate Madhya Pradesh

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Levels of Lead (Pb), Cadmium (Cd) and Cobalt (Co) in Cow Milk from Selected Areas of Zanzibar Island, Tanzania

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American Journal of Analytical Chemistry 2023年第7期14卷 287-304页

作者： Hassan Rashid ali Mwanahija Mohamed Ame Mohammed ali Sheikh Said Suleiman Bakari School of Natural and Social Sciences The State University of Zanzibar Zanzibar Tanzania Tropical Research Centre for Oceanography Environment and Natural Resources The State University of Zanzibar Zanzibar Tanzania

Milk is one of the very important nutrients of human diet. The presence of toxic elements in milk may threaten the public health. This study reports the levels of Cadmium (Cd), Cobalt (Co) and Lead (Pb) in raw cow’s milk collected from different areas of Zanzibar Island during March - May 2016. The samples of raw milk were analyzed by Thermo Scientific-Atomic Absorption Spectrophotometer for quantitative determination of the metals in the matrix. The concentration of Co in this study ranged from ND at Mwanakwerekwe (mk1 and mk2) to a maximum of 0.004 mg/L at Mshelishelini (MS5) and Fuoni (F5) sites with mean concentration of 0.020 ± 0.003 mg/L for all sites. Concentration of Pb ranged between 0.05 - 0.51 mg/L at Fuoni (F7) and Mwanakwerekwe (mk1) respectively, with mean concentration of 0.263 ± 0.031 mg/L for all sites. However, Cd was only detected in one sample collected at Fuoni (F3) with a concentration of 0.001 mg/L. The results revealed that cow’s milk is contaminated with toxic metals, particularly Pb which exceeded the WHO maximum permissible level of 0.02 mg/L. The study furthermore sheds light on possible consequences to public health. It is recommended that, stakeholders especially in Zanzibar such as Zanzibar Food and Drug Authorities (ZFDA) and Zanzibar Bureau of Standards (ZBS) as well as researchers, use the findings of this study for policy making, future study plans, formulation of technical strategies to control milk contamination, risk assessment and develop new alternative methods to measure milk contamination even at a low detection limit for the sake of the consumers’ welfare before posing any serious effects to their health.

关键词： Milk Cobalt Lead Cadmium Zanzibar

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Levels of oxidative stress parameters and the protective effects of melatonin in psychosis model rat testis

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Asian Journal of Andrology 2008年第2期10卷 259-265页

作者： Bekir S. Parlaktas Birsen Ozyurt Huseyin Ozyurt Ayten T. Tunc ali Akbas Department of Urology Gaziosmanpasa University School of Medicine Tokat 60100 Turkey Department of Anatomy Gaziosmanpasa University School of Medicine Tokat 60100 Turkey Department of Biochemistry Gaziosmanpasa University School of Medicine Tokat 60100 Turkey Department of Histology and Embryology Gaziosmanpasa University School of Medicine Tokat 60100 Turkey

Aim： To evaluate the effects of melatonin on antioxidant enzyme levels and histopathologic changes in dizocilpine （mk-801）-induced psychosis model rat testis. Methods： A total of 24 adult male Wistar-Albino rats were divided into three groups with 8 in each. Group I was used as control. Rats in Group II were injected with mk-801 （0.5 mg/kg body weight i.p. for 5 days）. In addition to mk-801, melatonin （50 mg/kg body weight i.p. once a day for 5 days） was injected into the rats in Group Ⅲ. The testes were harvested bilaterally for biochemical and histopathological examinations. Antioxidant enzyme activities, malondialdehyde, protein carbonyl and nitric oxide （NO） levels in testicular tissues were analyzed using spectrophotometric analysis methods. Histopathological examinations of the testes were also performed. Results： mk-801 induced testicular damage, which resulted in significant oxidative stress （OS） by increasing the levels of antioxidant enzymes. The malondialdehyde, protein carbonyl and NO levels were increased in testicular tissues of rats. Treatment with melatonin led to significant decrease in oxidative injury. Administration of melatonin also reduced the detrimental histopathologic effects caused by mk-801. Conclusion： The results of the present study showed that mk-801 cause OS in testicular tissues of rats and treatment with melatonin can reduce the harmful effects＇of mk-801. （Asian JAndro12008 Mar; 10： 259-265）

关键词： testis dizocilpine psychosis oxidative stress melatonin antioxidant enzymes

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中期因子在胃癌组织中的表达Meta分析

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中华实验外科杂志 2015年第7期32卷 1683-1685页

作者：朱阿丽丁朝辉叶延伟郑州大学第一附属医院胃肠外科 450052

目的系统评价中期因子（mk）在胃癌中的表达及其临床意义.方法检索中国生物医学文献数据库（CBM）、中国知网（CNKI）、万方数据库、维普数据库（VIP）、Cochrane LibLary、Pubmed、Embase、web of science（SCI）、检索时间均从建库... 详细信息

目的系统评价中期因子（mk）在胃癌中的表达及其临床意义.方法检索中国生物医学文献数据库（CBM）、中国知网（CNKI）、万方数据库、维普数据库（VIP）、Cochrane LibLary、Pubmed、Embase、web of science（SCI）、检索时间均从建库至2015年4月.按照所定的纳入、排除标准选取文献,应用Revman 5.3软件进行Meta分析.结果共纳入9个病例对照研究,632例胃癌组织标本纳入研究.Meta分析结果显示：胃癌组织中中期因子（mk）阳性率明显高于正常组织[比值比（OR） =16.78,95％可信区间（CI）：5.16 ～54.58,P＜0.01].肿瘤中mk的表达与以下因素相关：肿瘤直径＞5 cm与≤5 cm（OR=0.40,95％ CI：0.24 ～0.67,P＜0.01）;肿瘤是否穿透浆膜层（OR=0.13,95％ CI：0.07 ～0.21,P＜0.01）;伴或不伴淋巴结转移（OR=6.81,95％ CI：2.05～22.64,P＜0.01）;肿瘤高、中分化与低分化（OR =0.28,95％ CI：0.14 ～0.57,P＜0.01）;肿瘤临床分期Ⅰ、Ⅱ期与Ⅲ、Ⅳ期（OR =0.19,95％ CI：0.09 ～0.39,P＜0.01）.此外,胃癌患者血清mk含量显著高于对照组[加权均数差值（WMD）=267.82,95％ CI：130.28 ～ 160.55,P＜0.01].结论中期因子（mk）可能在胃癌的发生、发展及预后中发挥重要功能.

关键词：中期因子胃癌病例对照研究 Meta分析

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