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Search Results: 1 - 10 of 31020 matches for " Thomas Lockley "
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Pre-University Experience of ICT and Self-Access Learning in Japan
Thomas Lockley
Studies in Self-Access Learning Journal , 2011,
Abstract: Information and Communications Technology (ICT) can play a key role in self-access learning and the organization of self-access centres (SACs) (Reinders & Lázaro, 2007). The generation of young people currently at university has been labeled “digital natives” (Prensky, 2001), yet it would seem that many of these “natives” in Japan seem to lack the necessary ICT skills to use in the university context (Castellano, Mynard & Rubesch, 2011; Williams, 2011). This paper assesses the current situation of Japanese young people’s pre-university ICT experience and its implications for self-access learning. Do they actually lack the necessary skills to engage with self-access in an ICT context? Or does the reality in fact show that this perception is wrong and if so why? This paper will answer the questions through original research (N=105) and reference to the literature, globally and in Japan. It finds that students have more competence than previously believed and ventures some reasons for this previous misperception.
A new ichnotaxon of fossil bird track from the Early Cretaceous Tianjialou Formation (Barremian-Albian), Shandong Province, China
Rihui Li,Martin G. Lockley,Mingwei Liu
Chinese Science Bulletin , 2005, DOI: 10.1360/982004-823
Abstract: A single set of 5 bird tracks was discovered in the Tianjialou Formation (Barremian-Albian) of Junan County, Shandong Province, China. After careful study we infer that it is a new type of bird tracks, and a new ichnogenus was erected and the name Shandongornipes was given. The characteristics of the new bird track are as follows: Moderately large tetradactyl footprints with well-developed hallux impression. Track width (about 5.8 cm) almost equal to track length (excluding hallux); total length of track (including hallux) 8.7 cm. The digit impressions are slender, with distal ends showing long sharp claw marks. Hallux posteriorly-directed, and hallux impressions well-developed. Digits II, III and IV point anteriorly, exhibiting mesaxonic asymmetry: divarication angle between II and III much larger than that of III and IV, the former ranging from 91° to 118°, and the latter less than 30°. Divarication between digits II and IV ranging from 128° to 142°. Without web structures. Digital pads recognizable, usually at least three in digits III and IV, but sometimes only two due to preservation. The trackway shows slight positive (inward) rotation of feet. The bird tracks occur in association with abundant dinosaur tracks, and are believed to have formed in flood plain environments.
A new ichnotaxon of fossil bird track from the Early Cretaceous Tianjialou Formation (Barremian- Albian),Shandong Province, China
A new ichnotaxon of fossil bird track from the Early Cretaceous Tianjialou Formation (Barremian-Albian), Shandong Province, China

Rihui Li,Martin G Lockley,Mingwei Liu,
Martin
,G,Lockley

科学通报(英文版) , 2005,
Abstract: A single set of 5 bird tracks was discovered in the Tianjialou Formation (Barremian-Albian) of Junan County, Shandong Province, China. After careful study we infer that it is a new type of bird tracks, and a new ichnogenus was erected and the name Shandongornipes was given. The characteristics of the new bird track are as follows: Moderately large tetradactyl footprints with well-developed hallux impression. Track width (about 5.8 cm) almost equal to track length (excluding hallux); total length of track (including hallux) 8.7 cm. The digit impressions are slender, with distal ends showing long sharp claw marks. Hallux posteriorly-directed, and hallux impressions well-developed. Digits II, III and IV point anteriorly, exhibiting mesaxonic asymmetry: divarication angle between II and III much larger than that of III and IV, the former ranging from 91° to 118°, and the latter less than 30°. Divarication between digits II and IV ranging from 128° to 142°. Without web structures. Digital pads recognizable, usually at least three in digits III and IV, but sometimes only two due to preservation. The trackway shows slight positive (inward) rotation of feet. The bird tracks occur in association with abundant dinosaur tracks, and are believed to have formed in flood plain environments.
Effect of intern's consecutive work hours on safety, medical education and professionalism
Christopher P Landrigan, Steven W Lockley, Charles A Czeisler
Critical Care , 2005, DOI: 10.1186/cc3730
Abstract: We would like to make a few minor factual clarifications. First, although the study by Lockley and colleagues used a within-subjects analytical design [2], the study by Landrigan and colleagues did not [3]. A systemic-level approach rather than a within-subjects analysis was used in comparing interns' serious medical error rates, making these analyses comparable with analyses of errors system wide (i.e. those that involved both interns and other personnel), where a within-subjects design was not appropriate. Data from 20 interns were analyzed in Lockley and colleagues' study, as the authors note; however, data from an additional four interns contributed to the analysis in the study by Landrigan and colleagues. Our power to detect a 16% difference in serious medical errors was calculated to be 80%, not 90%. In addition, there is one error in the description of the limitations that we would like to point out. Dr Sarani and Dr Alarcon note:"There were more patients admitted to the ICU and more ICU patient-days in the traditional arm than in the intervention arm. Although these differences were not statistically significant, it does raise the possibility that interns in the traditional arm had more opportunities to make serious errors."Differences in the incidence of serious errors were analyzed using rates (per patient-day), and therefore the fact that there were more patient-days in the traditional schedule cannot explain the results. On a per patient-day basis, there were no more opportunities to err in the traditional schedule. This is further confirmed by the fact that there were no more medications ordered or diagnostic tests interpreted in the traditional schedule per patient-day, and there were in fact fewer procedures performed in the traditional schedule per patient-day.With respect to the recommendations following from our findings, we strongly disagree with Dr Sarani and Dr Alarcon's statement that our study supports the Accreditation Council for Graduate Me
山东莒南早白垩世新类型鸟类足迹化石
李日辉,Martin,G.,Lockley,刘明渭
科学通报 , 2005,
Abstract: 在山东省莒南县后左山早白垩世大盛群田家楼组(巴列姆-阿普特期)发现保存在泥质粉砂岩层面上的5个连续的足迹.经研究,认为是一新类型鸟类足迹化石,命名为Shandongornipes(山东鸟足迹).足迹中大型、四趾,宽约5.8cm,全长(含拇指)8.7cm.趾迹纤细,末端均有细长的爪迹.拇指(Ⅰ趾)向后,趾印清晰,各趾趾垫通常为3个.Ⅱ~Ⅳ趾间角变化范围128°~142°.趾间无蹼状构造.足迹最显著的特征是Ⅱ,Ⅲ,Ⅳ三趾中轴不对称,Ⅱ-Ⅲ趾间角较大(范围91°~118°),以及足迹长(不含拇指)与宽近等.该足迹是中国最早的鸟类足迹之一,也是迄今为止在中国境内发现的惟一的新遗迹属.它形成于河漫滩环境,与大量兽脚类、鸟脚类恐龙足迹共生.
山东莒南后左山恐龙公园早白垩世恐龙足迹化石初步研究
李日辉,刘明渭,Lockley,Martin
地质通报 , 2005,
Abstract: 山东省莒南县后左山恐龙公园内保存了数量众多、形态各异的恐龙足迹化石。该足迹化石群产于早白垩世大盛群田家楼组,主要是兽脚类、鸟脚类恐龙的足迹,尤以前者占优质。最大的一个为椭圆形,大小100cm×70cm,可能系鸟脚类恐龙的足迹。鸟脚类足迹大多为椭圆形,长轴一般30~40cm,常呈幻迹保存。最大的兽脚类足迹为三趾型,长49cm,宽35cm,是大型肉食龙类的足迹;最小的一个长8.5cm,宽4.5cm,可能是虚骨龙类的足迹。另外还发现了少量可能是驰龙的足迹,具有2个很长的趾(Ⅲ和Ⅳ趾),趾间角极小,二者几乎平行。鸟脚类恐龙足迹层位分布局限,但密度较大,产出的层面常发育泥裂、波痕,甚至冰晶痕,与泥岩、粉砂质泥岩等层位相关性较强。
山东莒南地质公园发现小型兽脚类恐龙足迹化石Minisauripus
李日辉,Lockley,Martin,GMatsukawa,Masaki,刘明渭
地质通报 , 2008,
Abstract: 在山东省莒南地质公园内发现6个小型恐龙足迹化石,被归入足迹属Minisauripus。化石产于下白垩统大盛群田家楼组,时代为早白垩世巴列姆(Barremian)―阿普特期(Aptian)。5个较大,长约6cm,产于下部“主”层面上,其中4个组成2节行迹;1个较小,长约3cm,位于“主”层面30cm之上的上部层面上。山东Minisauripus的特征是:足迹个体小(长3.1~5.6cm,宽2.0~3.7cm),三趾型,略不对称;足迹纵长,各趾近平行,趾垫较清晰;趾末端较钝,但爪迹较尖。Ⅲ趾比Ⅳ趾略长,而Ⅳ趾比Ⅱ趾略长且窄。此外,步幅较长,足长与步长之比约为10∶1。与四川、韩国的Minisauripus不同之处是:足迹个体较大,长约是它们的2倍。继中国四川和韩国之后,山东是Minisauripus在全球的第三个发现点。
Bird-Like Anatomy, Posture, and Behavior Revealed by an Early Jurassic Theropod Dinosaur Resting Trace
Andrew R. C. Milner, Jerald D. Harris, Martin G. Lockley, James I. Kirkland, Neffra A. Matthews
PLOS ONE , 2009, DOI: 10.1371/journal.pone.0004591
Abstract: Background Fossil tracks made by non-avian theropod dinosaurs commonly reflect the habitual bipedal stance retained in living birds. Only rarely-captured behaviors, such as crouching, might create impressions made by the hands. Such tracks provide valuable information concerning the often poorly understood functional morphology of the early theropod forelimb. Methodology/Principal Findings Here we describe a well-preserved theropod trackway in a Lower Jurassic (~198 million-year-old) lacustrine beach sandstone in the Whitmore Point Member of the Moenave Formation in southwestern Utah. The trackway consists of prints of typical morphology, intermittent tail drags and, unusually, traces made by the animal resting on the substrate in a posture very similar to modern birds. The resting trace includes symmetrical pes impressions and well-defined impressions made by both hands, the tail, and the ischial callosity. Conclusions/Significance The manus impressions corroborate that early theropods, like later birds, held their palms facing medially, in contrast to manus prints previously attributed to theropods that have forward-pointing digits. Both the symmetrical resting posture and the medially-facing palms therefore evolved by the Early Jurassic, much earlier in the theropod lineage than previously recognized, and may characterize all theropods.
The stellar mass ratio of GK Persei
L. Morales-Rueda,M. D. Still,P. Roche,J. H. Wood,J. J. Lockley
Physics , 2001, DOI: 10.1046/j.1365-8711.2002.05013.x
Abstract: We study the absorption lines present in the spectra of the long-period cataclysmic variable GK Per during its quiescent state, which are associated with the secondary star. By comparing quiescent data with outburst spectra we infer that the donor star appears identical during the two states and the inner face of the secondary star is not noticeably irradiated by flux from the accreting regions. We obtain new values for the radial velocity semi-amplitude of the secondary star, Kk = 120.5 +- 0.7 km/s, a projected rotational velocity, Vksin i = 61.5 +- 11.8 km/s and consequently a measurement of the stellar mass ratio of GK Per, q = Mk/Mwd = 0.55 +- 0.21. The inferred white dwarf radial velocities are greater than those measured traditionally using the wings of Doppler-broadened emission lines suspected to originate in an accretion disk, highlighting the unsuitability of emission lines for mass determinations in cataclysmic variables. We determine mass limits for both components in the binary, Mk >= 0.48 +- 0.32 Msolar and Mwd >= 0.87 +- 0.24 Msolar.
内蒙古乌拉特中旗恐龙足迹研究
李建军,白志强,Martin,Lockley,周彬,刘疆,宋宇
地质学报 , 2010,
Abstract: 2006年内蒙古地质环境监测院在乌拉特中旗海流图镇西10公里处发现一恐龙足迹化石点。由于恐龙足迹产地的地层研究程度较低,因此这批恐龙足迹的研究在地层年代确定、以及恢复古环境方面具有重大意义。共识别出脊椎动物足迹化石119个,其中大部分为恐龙足迹,包括兽脚类恐龙足迹:玫瑰实雷龙足迹(Eubrontesglenrosensis)、海流图卡岩塔足迹(Kayentapushailiutuensisichnosp.nov)和鸟脚类恐龙足迹中型异样龙足迹种Anomoepusintermedius,以及鳄类足迹的蛙步足迹,其中海流图卡岩塔足迹(Kayentapushailiutuensisichnosp.nov)为新种。根据足迹形态的对比,推断造迹恐龙分别为兽脚类恐龙中的巨齿龙类(Megalosaurus)和双脊龙类(Dilophosaurus)以及鸟脚类恐龙棱齿龙类(Hypsilophodont)。通过对比发现乌拉特波兰Opatów附近的Podole地区发现的早侏罗世的足迹组合十分相似,因此建议将乌拉特中旗海流图的足迹及含足迹地层的年代归入侏罗纪早期。根据对足迹产地附近的地层剖面的研究以及足迹组合中含大量鸟脚类恐龙足迹的事实推断:侏罗纪早期研究区古环境为山涧河流环境,雨量充沛。
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