63,822 research outputs found
What is the probability of Explosive Eruption at a Long-Dormant Volcano?
No full textOne of the most difficult problems we face in assessing volcanic hazards is that of
evaluating the potential activity of volcanoes with little or no record of Holocene eruptions.
Is there some minimum period of inactivity after which we can safely rule out
a future eruption of large magnitude? Or, failing that, can we say how likely it is that
such a volcano will return to activity within a particular span of time? Violent explosive
eruptions are uncommon during the youthful stage of active growth. They are
confined almost entirely to large mature volcanoes. Here, we use the global record
of volcanic activity (Simkin and Siebert, 1994) to evaluate the duration of repose intervals
preceding such explosive volcanic eruptions. This analysis indicates that the
hazard rate for explosive eruptions is not constant with time, but depends on the time
since last eruption and that explosive eruptions may occur at volcanoes that have been
quiescent for 10,000 yr or more.
The techniques we employ are common to a class of problems in survival analysis
(Cox and Oakes, 1984;Woo, 1999), and can be applied to a variety of hazard problems
on volcanoes (e.g., Hill et al., 1998; Connor et al., 2003, Calder et al., 2005). One of
the major lessons of this type of analysis is that applied statistical methods can teach
us much about the time scales of volcanic activity, and about the underlying physical
mechanisms governing these rates
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Our body, Our health Quantitative Metadata
No full textThis record is related to the quantitative arm of the study. 300 Somali women completed a survey on a touchscreen laptop computer using NOVA Research Company (QDS v5.0) Audio-Computer-Assisted Self-Interviewing (ACASI). Participants completed the survey at a location of their choice (home, clinic, office). Participants were recruited in the community or at Smiley's Family Medicine and Community-University Health Care Center (CUHCC). 203 (67%) interviews were completed in Somali. Data collected was on circumcision, genital history, pain, sexual, psychological, and sociodemographic variables. This record contains supporting metadata files: study protocol, quantitative data dictionary and coding tree, survey instrument, recruitment processes, and interview processes. Due to the sensitive nature of the study and informed consent process, the data cannot be released for any reason. The raw data is stored at the Institute for Sexual and Gender Health at the University of Minnesota Medical School.The National Pain Strategy notes the importance of addressing pain in minority populations to reduce health disparities. One such population is female refugees who have been victim to female genital cutting (FGC) --- which is known to cause sexual pain. The objective of the proposed research is to collect empirical data to (1) inform the conceptualization of sexual pain and other outcomes among Somali women living in Minnesota who have experienced FGC, (2) promote healthcare practices that minimize sexual pain, and (3) develop decision- making tool(s) and education seminars driven by study findings. The majority of Somali girls undergo infibulation when originally cut, which involves stitching the vaginal opening shut. Deinfibulation (i.e. opening the circumcision/infibulation scar) may decrease pain and is necessary before vaginal birth. It is recommended before labor and delivery; however, many patients wait until labor and delivery to undergo deinfibulation – thus increasing a risk in tears. Little is known about how sexual pain and sexual function are impacted by the timing of deinfibulation. To better understand sexual pain in relation to FGC, this study relied upon conceptual models that utilize a biopsychosocial approach, integrating biological, psychological, and cultural considerations. These models include fear-avoidance, endurance, and resilience. We partnered with a community-based organization (SoLaHmo) to conduct 75 qualitative interviews of Somali-American married women 18-45 years who have experienced FGC to accomplish the following aims: Aim 1: Qualitatively investigate sexual pain characteristics and meaning ascribed to sexual pain. Aim 2: Establish reference levels using descriptive statistics to quantify sexual pain characteristics (presence, frequency, intensity), sexual function, pain responses (fear avoidance, endurance, resilience), and moderator variables (acculturation and shared decision making) in this population. Aim 3: Among women who have vaginally delivered one or more babies, determine if sexual pain characteristics and sexual function are associated with the timing of deinfibulation with first child. Aim 4: Among women reporting sexual pain in Aim 3, determine if pain responses (fear avoidance, endurance, resilience) are associated with sexual pain and sexual function, and whether these associations are modified by degree of acculturation --- while adjusting for timing of deinfibulation.National Institute of Health- Eunice Kennedy Shriver National Institute of Child Health Institute & Human DevelopmentRobinson, Beatrice "Bean"; Connor, Jennifer. (2024). Our body, Our health Quantitative Metadata. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/R296-0G60
Connor, Patrick Edward
No full textConnor, Patrick Edward. Born in Kerry, Ireland in 1820. Patrick Edward Connor was a soldier, building contractor, mining entrepreneur, and political leader. He left Killarney for New York City at the age of twelve. Patrick E. O\u27Connor enlisted in the U.S. Army at the age of eighteen. When the Civil War started, Connor volunteered for service in the Union army and was appointed Colonel of the Third California Infantry with instructions to guard and secure the overland mail route across the West. In October 1862 he moved his command to Salt Lake City, where he founded Camp Douglas and at once engaged in an acrimonious and bitter cold war with Brigham Young and the Mormon people, whom he accused of being disloyal and immoral. Connor won a brigadier general\u27s star for his destruction of 250 northwestern Shoshone at Bear River near Franklin, Idaho, on 29 January 1863. In the spring of 1865, he was named commander of the District of the Plains and placed in charge of the Powder River Expedition, whose goal was to pursue and punish the Sioux, Arapaho, and Cheyenne Indians in what is today Wyoming. The expedition was unsuccessful except for a band of Arapaho Connor defeated at Tongue River on 29 August 1865. Connor then returned to the military District of Utah where he was discharged as a Brevet Major-General in the spring of 1866. Connor is remembered as the founder of the "Liberal Party" in Utah and as the "Father of Utah Mining." Connor also established the first daily newspaper in Utah, "The Daily Union Vedette." See: Fred B. Rogers, "Soldiers of the Overland" (1938) and Brigham D. Madsen, "Glory Hunter: A Biography of Patrick Edward Connor" (1990)
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
No full textAn analysis of B+ → K0
Sπ+ and B+ → K0
S K+ decays is performed with the LHCb experiment. The pp
collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass
energies of
√
s = 7 TeV and
√
s = 8 TeV, respectively. The ratio of branching fractions and the
direct CP asymmetries are measured to be B(B+ → K0
S K+
)/B(B+ → K0
Sπ+
) = 0.064 ± 0.009 (stat.) ±
0.004 (syst.), ACP(B+ → K0
Sπ+
) = −0.022 ± 0.025 (stat.) ± 0.010 (syst.) and ACP(B+ → K0
S K+
) =
−0.21 ± 0.14 (stat.) ± 0.01 (syst.). The data sample taken at
√
s = 7 TeV is used to search for
B+
c
→ K0
S K+ decays and results in the upper limit ( fc · B(B+
c
→ K0
S K+
))/( fu · B(B+ → K0
Sπ+
)) <
5.8 × 10−2 at 90% confidence level, where fc and fu denote the hadronisation fractions of a ¯b
quark
into a B+
c or a B+ meson, respectively
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Cutting'aesthetic teeth' : Flannery O'Connor's habit of art
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e ExpressãoEste trabalho foi sugerido pela afirmação de Flannery O'Connor que sua "dedicação estética" nasceu através do contato com Art and Scholasticism de Jacques Maritain. O propósito foi chegar a uma interpretação do sentido da frase. Uma investigação detalhada foi feita do conteúdo de Art and Scholasticism, posteriormente contrastada com os resultados de uma pesquisa feita em seus ensaios e suas cartas, o que revelou numerosos ecos de diversos trechos constando no texto de Maritain. Três pontos principais foram escolhidos como critérios na análise do hábito artístico de O'Connor: 1) a prática de arte implica uma luta; 2) a arte somente pode ser percebida pelos sentidos; e 3) a prática de arte exige do artista a dedicação indivisa à obra nascente. O estudo conclui que, para O'Connor, o brotar da dentição estética, através da leitura de Art and Scholasticism, significou que, ao perceber na análise da natureza da arte algo com que podia concordar, ela reconheceu tanto sua própria capacidade de tornar-se uma artista literária, quanto sua vontade de assumir a tarefa de desenvolver em sua pessoa o hábito de arte
Intrusion dynamics for volatile-poor basaltic magma into subsurface nuclear installations
No full textGeorge Connor and students eye-level view, circa 1963-1964
No full textBlack-and-white photograph of George Connor and three unidentified students. The captions on the reverse of the image read, "College Clinic Huddle", "3 col cut P.3", "U.C FOLK", and "B-31." The stamp on the reverse of the image reads, "W. C. KING.
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