4,571 research outputs found
Galictis Bell 1826
No full textGalictis Bell, 1826. Zool. J., 2: 552. REVIEWED BY: A. I. Roest (AIR). COMMENT: Grison Oken, 1816, is invalid; includes Grisonella; see Stains, 1967, in Anderson and Jones, p. 337. Subfamily Mustelinae. ISIS NUMBER: 5301412004002000000.Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Carnivora, pp. 244-289 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 257, DOI: 10.5281/zenodo.735298
Evolution of cooperation among tumor cells
No full textThe evolution of cooperation has a well established theoretical framework based on game theory. This approach has made valuable contributions to a wide variety of disciplines, including political science, economics, and evolutionary biology. Existing cancer theory suggests that individual clones of cancer cells evolve independently from one another, acquiring all of the genetic traits or hallmarks necessary to form a malignant tumor. It is also now recognized that tumors are heterotypic, with cancer cells interacting with normal stromal cells within the issue microenvironment, including endothelial, stromal, and nerve cells. This tumor cell???stromal cell interaction in itself is a form of commensalism, because it has been demonstrated that these nonmalignant cells support and even enable tumor growth. Here, we add to this theory by regarding tumor cells as game players whose interactions help to determine their Darwinian fitness. We marshal evidence that tumor cells overcome certain host defenses by means of diffusible products. Our original contribution is to raise the possibility that two nearby cells can protect each other from a set of host defenses that neither could survive alone. Cooperation can evolve as byproduct mutualism among genetically diverse tumor cells. Our hypothesis supplements, but does not supplant, the traditional view of carcinogenesis in which one clonal population of cells develops all of the necessary genetic traits independently to form a tumor. Cooperation through the sharing of diffusible products raises new questions about tumorigenesis and has implications for understanding observed phenomena, designing new experiments, and developing new therapeutic approaches.Author manuscript. Published in final edited form as: Proc Natl Acad Sci U S A. 2006 September 5; 103(36): 13474-13479.The final published version of this article is located at: www.pnas.org/cgi/doi/10.1073/pnas.0606053103NIH U56 CA113004; to David E. AxelrodR.A. was supported by National Science Foundation (NSF) Grant SES-0240852. D.E.A. was supported by NSF Grant IIS-0312953, National Institutes of Health (NIH) Grant U56 CA113004, and New Jersey Commission on Cancer Research Grant 1076-CCR-SO. K.J.P. is an American Cancer Society Clinical Research Professor and is supported by NIH Grants CA69568, CA102872, and CA093900.NIH CA69568; to Kenneth J. PientaNIH CA102872; to Kenneth J. PientaNIH CA093900; to Kenneth J. PientaNSF SES-0240852; to Robert AxelrodNJ Commission on Cancer Research 1076-CCR-SO; to David E. AxelrodAlso available in PubMed Central. PMCID: PMC155738
To study, to party, or both? Assessing risk factors for non-prescribed stimulant use among middle and high school students
No full textThis study examines the risk factors predicting non-prescribed stimulant use (NPSU) among adolescents, with an emphasis on whether such factors are reflective of instrumental (e.g. studying) and/or recreational (e.g. partying) drug consumption settings. Using data from Monitoring the Future (2011), we employed a series of logistic regression models to establish predictors of 12-month self-reported Adderall or Ritalin use without a doctor’s note among 8th and 10th graders. Whereas studies of college students have found NPSU to correlate with instrumental motives and productivity-related demands, we find no association between NPSU and indicators of academic strain for this younger sample. Rather, we find that the age of onset and current use of alcohol, tobacco, and marijuana is most predictive of NPSU, which are substances generally associated with social and recreational consumption settings. These findings have potential implications for practitioners concerned with mitigating the harms of general prescription drug misuse, as interventions efforts informed by research conducted among college students may not readily apply to younger populations. Drawing from central tenets of developmental and life course criminology, we call for continued inquiry into the broader socialization and developmental processes that influence NPSU and other prescription drug use patterns prior to early adulthood.Peer reviewe
"We enter the fields of new: Kenneth Patchen, l'intelletto e l'intuizione"
No full textA partire da una citazione di Kenneth Patchen, "we enter the fields of new", l'autrice del saggio analizza la poesia "Thinking Rock" sulla base del binomio, in psicologia, "intelletto e intuizione".Starting from a quotation by Kenneth Patchen, "we enter the fields of new", the author of the essay analyses the poet's poem "Thinking Rock" on the basis of the difference, in psychology, of the terms "intellect" and "intuition"
Nya perspektiv på det romerska myntväsendet i det östra Medelhavsområdet under senrepublikansk och kejsartid
No full textThe Ph.D. thesis discusses the monetary development in Roman Syria and Judaea in the Late Republican and the Early Imperial Period, from a numismatic, archaeological and historical point of view. In effect, the work focuses on the 1st century B.C. to the 1st century A.D., that is, the assumed time of introduction of Roman denarii to the region.
The work benefits from the silver coin hoards of Khirbet Qumran recently published by the author. Though discovered as early as 1955 at Qumran, where the famous Dead Sea Scrolls had been found prior to that in 1947, most hoards remained unpublished until 2007. A second important source utilized is the so-called Tax Law from Palmyra in Syria. Its significance lies in the fact that Palmyra used to be one of the most important cities on the Silk Road, along which luxury goods were transported into the Roman Empire and Rome itself.
During the research conducted, studies of the provincial coinage of Judaea (A.D. 6-66) shed new light on the authority of the Roman governors in economic and monetary matters in eastern Mediterranean regions. Furthermore, a new suggestion as to the length of the mandate period of Pontius Pilate is made. The extent of Emperor Augustus monetary reforms as well as the military history of Judaea are discussed in the light of new analytical studies, which show that the production of Roman base metal coins appears to have been a highly controlled process, contrary to popular opinion. Statistical calculations related to the coin alloy revealed striking similarities with Roman and other local metalwork found in Israel; a fact previously unknown. Results indicate that both Roman and local metalwork consisted of outstandingly systematized practises and may have exploited the same metal sources.
Information: Kenneth Lönnqvist (*25.7.1962) has studied at the University of Helsinki since 1981. Furthermore, Lönnqvist has lived in the Mediterranean countries and the Near East, and made research there at various scientific institutions and universities for ca. 7 years. Contact and sales of thesis: [email protected] perspektiv på det romerska myntväsendet i det östra Medelhavsområdet under senrepublikansk och kejsartid Avhandlingen diskuterar den monetära utvecklingen i romerska Syrien och Judéen från senrepublikansk till tidig kejsartid ur en numismatisk, arkeologisk och historisk synvinkel. I praktiken fokuserar arbetet på emissionen av romerska mynt till Syria-Palestina, d.v.s. tiden från första århundradet f.Kr. till första århundradet e.Kr. Arbetet baserar sig på det av författaren 2007 publicerat myntmaterial eller silverskatterna från Khirbet Qumran. Skatterna hittades 1955 i Qumran, där de berömda Dödahavsrullarna upptäcktes redan 1947, men förblev opublicerade fram till 2007. En annan viktig källa utgörs av den romerska inskriften, den s.k. Tulltariffen från Palmyra (Syrien), som var en inkörsport för lyxvaror till Rom längs Sidenvägen.
Myntsystemet i romerska Judéen belyser på ett nytt sätt ämbetsmännens befogenheter i monetära angelägenheter i östra Medelhavsområdet. Vidare diskuteras tjänstemännens ämbetsperioder (bl.a. omdateras Pontius Pilatus mandatstid) samt omfattningen av kejsar Augustus myntreformer, och Judéens militärhistoria under första århundradet e.Kr. Metallanalyser visar att produktionen av kopparbaserade mynt var en noga kontrollerad process, i motsats till vad man tidigare antagit. Analyser av myntens spårämnessammansättning visar häpnadsväckande likheter med andra romerska och lokala materialgrupper funna på arkeologiska utgrävningar i Israel. Resultatet tyder delvis på att en del råvaror för tillverkningen kom till Mellanöstern från Europa, delvis också på att romerska mynt, romerskt metallverk, men också lokala metallhantverkare uttnyttjade samma råvarokällor
Scottish Poetry: The Scene and the Sixties
No full textThis was an intermediary but vital period of cultural change. The young Scottish poets of the late sixties (including D.M. Black, Alan Jackson, Kenneth White; Robin Fulton, and the first appearances of Tom Leonard and Liz Lochhead) heralded this new spirit –very much of its time– and took us beyond the familiar arguments for and against the use of Scots, beyond the Renaissance agendas of national psychology and identity
. 30 Tomo II (1941-1946) Sexta Época (1939-1966). Anales del Instituto Nacional de Antropología e Historia
No full textPublicación que recopila y difunde cien años de trabajo de la antropología en México (1877-1977), integrada por documentos y manuscritos arqueológicos, antropológicos, históricos, geológicos, botánicos y lingüísticos.- Estudio dental y radiográfico de las mutilaciones dentarias por Samuel Fastlicht. - Análisis de algunos carácteres somáticos de la población de San Miguel Totolapan, Gro. por Johanna Faulhaber. - Teotihuacan: ofrendas de los templos de Quetzalcóatl por Daniel Fernando Rubín de la Borbolla. - Exploraciones arqueológicas en el Totonacapan meridional (Región de Misantla, Ver.) por José García Payón. - El friso de los caciques por Hugo Moedano Köer. - Estudios etnobiológicos, III. Contribuciones mexicanas al conocimiento de la etnobiología del maíz por Manuel Maldonado Koerdell. - Los zapotecos de Choapan, Oaxaca por Julio de la Fuente. - La alimentación tarasca por Silvia Rendón. - Música precortesiana por Jesús C. Romero. - Danzas mexicanas por Raúl G. Guerrero - Notas sobre lugares de Oaxaca, con especial referencia a la toponimia zapoteca por Julio de la Fuente. - Una visita a los indígenas amuzgos de México por George M. Cowan. - Nombres clasificadores, chontales por Margaret Harris. - Palabras y frases de las lenguas tarahumaras y guarijío por Kenneth S. Hilton. - Mapa de Popotla por Alfonso Caso. - La misión del historiador José de J. Núñez y Domínguez en archivos de Europa (1937-1939) por José de J. Núñez y Domínguez. - Noticias sobre algunos archivos hispanoamericanos por María Castelo de Zavala. - La función económica del encomendero en los orígenes del régimen colonial, Nueva España (1525-1531) por José Miranda. - Juan Moritz Rugendas y su colección de pinturas costumbristas por Federico Hernández Serrano
"Objects Lost and Found: Kenneth Patchen's Poetics of the Letter"
No full textIn "Oggetti perduti e ritrovati: Kenneth Patchen e la poetica della lettera" gli aspetti storici e letterari di una poesia di Kenneth Patchen,"Poem in the form of a Letter: to Lauro de Bosis", sono esplorati analiticamente al fine di individuarne gli aspetti 'oggettivi' derivati dalla lezione di Zukofski che, negli anni trenta, iniziò a promuove l'oggettivismo in poesia, seguito da poeti come Ron Silliman, Bob Perelman e Rachel Blau DuPlessis ai nostri giorni.A poem by Kenneth Patchen "Poem in the form of a Letter: to Lauro de Bosis" is explored analytically by the author in order to discover its 'objective' aspects as derived from the lesson of Zukofsky who, in the thirties, set out to promote the "objectivism" in poetry, and was followed by poets like Ron Silliman, Bob Perelman and Rachel Blau DuPlessis, who are very active in today’s “objective” panorama
Impact of scour on lateral resistance of wind turbine monopiles: An experimental study
Full text linkThe majority of offshore wind structures are supported on large-diameter, rigid monopile foundations. These piles may be subjected to scour due to the waves and currents that causes a loss of soil support and consequently decreases the pile capacity and system stiffness. The results of numerical models suggest that the shape of the scour hole affects the magnitude of pile capacity loss; however, there is a dearth of experimental test data that quantify this effect. This paper presents a series of centrifuge model tests on an instrumented model pile that investigates the effects of scour-hole geometry on the response of a laterally loaded pile embedded in sand. The pile instrumentation allowed load–displacement and p–y (soil reaction – displacement) curves to be derived. Three scour geometries (global, local wide, and local narrow) and three scour depths (1D, 1.5D, and 2D; where D is pile diameter) were modelled. For all three scour types, pile moment capacity decreased almost linearly with increase of scour depth. Simple empirical relations were proposed to evaluate the detrimental influence of scour on the pile moment capacity. A new method has been developed to allow designers to quantify the effect of scour-hole shape and severity of scour on the pile response.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Geo-engineerin
The contribution of Philip W. Bell to accounting thought
Full text linkThis paper reviews the contribution of the late Philip Bell to accounting thought. He is best known for his joint work with Edgar O. Edwards, The Theory and Measurement of Business Income. This seminal work is put in context by exploring Bell’s earlier work as an economist and his later work, in which he developed applications and extensions of the Edwards and Bell model. Many of his concerns are relevant to the policy and research issues of today
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