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在中档小型计算机领域为获得价格性能平衡而作出的设计决定

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计算机工程与应用 1978年第7期 49-57页

作者： j.craig Mudge ,汪义超

小型计算机系列的设计一般沿着价格、功能和尺寸三个基本方面发展,即随着时间的推移,小型计算机变得更便宜,功能更强,更加小型化。基础的硬件技术在决定这些发展方面是个决定性的因素。与大型计算机的发展情况相比,市场因素对小型计算... 详细信息

小型计算机系列的设计一般沿着价格、功能和尺寸三个基本方面发展,即随着时间的推移,小型计算机变得更便宜,功能更强,更加小型化。基础的硬件技术在决定这些发展方面是个决定性的因素。与大型计算机的发展情况相比,市场因素对小型计算机的增长模式影响较小。但是,市场因素影响小型计算机的软件

关键词：存贮器主存存储器高速缓存浮点运算部件设计过程总线 CPU 地址空间

高粱幼苗对丝黑穗病菌的反应型与高粱丝黑穗病抗性等级关系的比较

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国外农学（杂粮作物） 1992年第6期 39-42页

作者： j.craig 徐秀德

高粱丝黑穗病(Sporisorium reilianum(Kuhn)Langdon & Fullerton,异名:Sphacelotheca reiliarza(Kuhn)Clinton和Sorosporium reilianum(Kuhn)McAlpine)是非洲、亚洲、澳洲、欧洲及北美洲重要的高粱病害。50年代该病成为得克萨斯州的主... 详细信息

关键词：高粱幼苗丝黑穗病抗性

高粱幼苗对丝黑穗病菌的反应型与高粱丝黑穗病抗性等级关系的比较

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园艺与种苗 1992年第6期 39-42页

作者： j.craig 徐秀德

关键词：高粱丝黑穗病丝黑穗病菌幼苗反应型

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宇宙大灾变爆炸星、黑洞及宇宙测绘

国外科技新书评介 2008年第7期 23-24页

作者： j.craig Wheeler 邓劲松不详中国科学院国家天文台

这是一本非常优秀的天文科普书籍，源于作者在大学开讲多年的公共入门课程，深入浅出地讲述了当代天文学和宇宙研究中非常吸引人的一些话题。内容远不止书名所涵指的超新星、伽玛射线暴等恒星爆炸现象，还有对恒星及双星的演化、吸积盘... 详细信息

这是一本非常优秀的天文科普书籍，源于作者在大学开讲多年的公共入门课程，深入浅出地讲述了当代天文学和宇宙研究中非常吸引人的一些话题。内容远不止书名所涵指的超新星、伽玛射线暴等恒星爆炸现象，还有对恒星及双星的演化、吸积盘、白矮星、中子星、黑洞、宇宙加速膨胀等相关天文现象以及背后的物理所做的全面而清晰的阐述，

关键词：宇宙加速膨胀爆炸现象黑洞灾变测绘伽玛射线暴天文现象天文学

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接种高粱上不同病变型指梗霜霉菌的孢子形成

园艺与种苗 1985年第3期 49-50页

作者： j.craig R.Frederiksen 朱明德

1979年,在美国得克萨斯州发现了诱发高粱霜霉病(SDM)的病因——垂直病变型高粱指梗霜霉菌(Peronosclerospora sorghi)。按其在高粱自交系CS3541上诱发SDM系统侵染的能力,可分为***病变型1和病变型2。 jones(1970)曾报道,高粱接种***分... 详细信息

1979年,在美国得克萨斯州发现了诱发高粱霜霉病(SDM)的病因——垂直病变型高粱指梗霜霉菌(Peronosclerospora sorghi)。按其在高粱自交系CS3541上诱发SDM系统侵染的能力,可分为***病变型1和病变型2。 jones(1970)曾报道,高粱接种***分生孢子后4天叶片出现症状,接种后6天侵染叶片上形成孢子。其他研究者还发现,用分

关键词：高粱叶片病变 SDM 霜霉菌自交系品系(育种)

Stand dynamics of old-growth hemlock forests in central Bhutan are shaped by natural disturbances

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Forest Ecosystems 2024年第4期11卷 434-447页

作者： Karma Tenzin craig R.Nitschke Kathryn j.Allen Raphael Trouve Thiet V.Nguyen Patrick j.Baker School of Agriculture Foodand Ecosystem SciencesUniversity of Melbourne500 Yarra BlvdRichmondVictoriaAustralia School of Geography Planningand Spatial SciencesUniversity of TasmaniaSandy BayTasmaniaAustralia Forest Science Institute of South Vietnam 1 Pham Van Hai StreetTan Binh DistrictHo Chi Minh CityViet Nam

Understanding how past disturbances have influenced the development of forests is critical for deciphering their current structure and composition and forecasting future *** this study,dendrochronological methods were applied to uncover the disturbance history of old-growth hemlock-dominated forests in central *** of tree-ring samples from two old-growth hemlock stands,located in two different topographic settings,identified the importance of gap-phase dynamics in facilitating recruitment and growth releases and producing complex,multi-aged structure s over *** site showed evidence of a near stand-replacing disturbance in the late 1700s,while the other showed no evide nce of high-severity disturbance at any time over the last 400 *** both sites low-to medium-severity disturbances,some of which appear to be associated with cyclones originating in the Bay of Bengal,dominated the disturbance *** hemlock stands exhibited a significant positive association between cyclone occurrence and growth release events and between recruitment pulses and growth release *** 1800 to 1970 there was an increase in recruitment of angiosperm tree species at most sites and a corresponding decline in conifer *** the past 50 years there has been little new recruitment;this may be due to light limitation in the understory from shade-tolerant angiosperms and bamboo in the lower strata of these *** variations in disturbance dynamics and recruitment were observed across the study sites,suggesting that other factors,such as topography and climate,may be influencing long-term stand development *** study highlights the complex interplay between historical disturbance regimes and tree recruitment in shaping the age and size structures of old-growth hemlock forests in central *** also provides new insights into the dynamics of these forests that can be used to support effective forest conservation and management i

关键词： Forest structure Hemlock forest Himalaya Natural disturbance

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A randomized controlled trial of Promoting Physical Activity in Regional and Remote Cancer Survivors(PPARCS)

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journal of Sport and Health Science 2024年第1期13卷 81-89页

作者： Sarah j.Hardcastle Chloe Maxwell-Smith Vinicius Cavalheri Terry Boyle Marta Leyton Román Cameron Platell Michael Levitt Christobel Saunders Frank Sardelic Sophie Nightingale jacob McCormick craig Lynch Paul A.Cohen Max Bulsara Dana Hince Sport and Physical Activity Research Centre Sheffield Hallam UniversitySheffieldS102BPUK Institute for Health Research The University of Notre DameFremantleWA 6959Australia Curtin School of Population Health Curtin UniversityPerthWA 6845Australia Curtin School of Allied Health Curtin UniversityPerthWA 6845Australia Allied Health South Metropolitan Health ServiceMurdochWA 6150Australia Australian Centre for Precision Health University of South AustraliaAdelaideSA 5001Australia Department of Didactics of Musical Plastic and Body ExpressionUniversity of ExtremaduraCaceres 10071Spain St.john of God Subiaco Hospital PerthWA 6008Australia Department of Surgery University of MelbourneMelbourneVIC 3010Australia Tamara Private Hospital TamworthNSW 2340Australia Peter MacCallum Cancer Centre MelbourneVIC 3000Australia College of Health and Medicine Australian National UniversityCanberraACT 2600Australia Division of Obstetrics and Gynaecology Medical SchoolUniversity of Western AustraliaPerthWA 6009Australia

Background:Physical activity(PA)is important for cancer *** of remotely delivered interventions are needed to assist in reaching under-served non-metropolitan cancer *** objective of this study was to ascertain whether wearable technology,coupled with health coaching was effective in increasing PA in breast and colorectal cancer survivors living in regional and remote areas in ***:Cancer survivors from 5 states were randomized to intervention and control *** participants were given a Fitbit Charge 2TMand received up to 6 telephone health coaching *** participants received PA print *** assessments at baseline and 12 weeks measured moderate-to-vigorous PA(MVPA),light PA,and sedentary ***:Eighty-seven participants were recruited(age=63±11 years;74(85%)female).There was a significant net improvement in MVPA of 49.8 min/week,favoring the intervention group(95%confidence interval(95%CI):13.6-86.1,p=0.007).There was also a net increase in MVPA bouts of 39.5 min/week(95%CI:11.9-67.1,p=0.005),favoring the intervention *** groups improved light PA and sedentary behavior,but there were no between-group ***:This’s the first study to demonstrate that,when compared to standard practice(i.e.,PA education),a wearable technology intervention coupled with distance-based health coaching,improves MVPA in non-metropolitan cancer *** results display promise for the use of scalable interventions using smart wearable technology in conjunction with phone-based health coaching to foster increased PA in geographically disadvantaged cancer survivors.

关键词： Behavior change Exercise Health disparities Oncology Wearable technology

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Feeding ecology and interactions with mammal hosts in a symbiotic genus of birds(Buphagus spp.) in Namibia

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Avian Research 2024年第3期 336-344页

作者： Michael S.Lukubwe Daniel Velarde-Garcéz Fernando Sequeira Susana Lopes Adrian j.F.K.craig Vanessa A.Mata Department of Zoology and Entomology Rhodes University Department of Wildlife Management and Tourism Studies University of Namibia Departamento de Biologia Faculdade de CiênciasUniversidade do Porto CIBIO Centro de Investiga??o em Biodiversidade e Recursos Genéticos In BIO Laboratório AssociadoCampus de Vair?o BIOPOLIS Program in Genomics Biodiversity and Land Planning CIBIOCampus de Vair?o

As the sole obligate symbiotic birds in Africa, oxpeckers offer a unique model for studying symbiotic relationships. Due to the multitrophic level they occupy and the context dependent foraging behavior they exhibit, the type of symbiotic relationship can be variable. In addition to providing a cleaning service to the host by removing ticks, oxpeckers frequently feed on blood, mucus, and saliva, inflicting potential damage on the host. Here, we used DNA metabarcoding on faecal samples to analyze the taxonomic composition of the trophic interactions of the Yellow-billed Oxpecker(Buphagus africanus) and Red-billed Oxpecker(B. erythrorhynchus) in northeastern Namibia. In contrast to conventional methods, DNA metabarcoding allows for a detailed identification of dietary resources encompassing both mammal hosts and consumed arthropods within the same samples. With this information, we examined differences in the diet composition between oxpecker species and localities, as well as the co-occurrence between host and arthropod species. Our findings revealed that oxpeckers predominantly source their diet from mammals, ticks, and flies; however, ticks and flies rarely co-occur in the diet of an individual. We observed variability among individuals in their feeding ecology, which is strongly correlated with locality and, to a lesser extent, with the mammal host. We noted a high degree of mobility between hosts within relatively short periods, with 32% of the samples showing traces of at least two mammal hosts. This study illustrates the dynamic foraging behavior of these specialized symbiotic birds, shedding light on their potential role in pest control services and disease transmission.

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