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Search Results: 1 - 10 of 219668 matches for " C. Stanford "
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Sparking the Imagination: Exploring the Eureka Moment
Kendra Schank Smith,Albert C. Smith,Jessica Stanford
Archnet-IJAR : International Journal of Architectural Research , 2013,
Post Partum Haemorhage Among Women Delivered at Mbeya Referral Hospital in 2008
J Stanford
Dar Es Salaam Medical Students' Journal , 2010,
Abstract: OBJECTIVES To assess the prevalence, associated risk factors and outcome of post partum hemorrhage (PPH) among women delivering at the hospital setting. DESIGN Descriptive retrospective hospital based cross-section study RESULTS The targeted respondents were 344 pregnant women. Prevalence of PPH was 11.9% with re-admission rate of 41.5% and 12.2% deaths secondary to PPH where most of the women (35.2%) were given blood transfusion after re-admission and surgery as an immediate measure taken. Also it has been found that increase in blood loss is statistically associated with delivery by LSCS. (P=0.02) Risk factors for PPH found in this study are low hemoglobin (HB), pregnancy induced hypertension (PIH), trauma after delivery, history of birth before arrival (BBA), advanced age group (>32years old) and multiparity (> 3 parity). CONCLUSION Although the prevalence seems to be low as compared to overall for Africa (33.4%), still PPH is associated with high mortality (12.2%) and morbidity where majority of risk factors found in this study are preventable.
Who are You? We have Ways of Finding Out! Tracing the Police Development of Offender Identificiation Techniques in the Late Nineteenth Century
Terry Stanford
Crimes and Misdemeanours : Deviance and the Law in Historical Perspective , 2009,
Abstract: From the very beginning of modern policing there were a number of problems; not the least of these was the difficulty that the police had in identifying those they had arrested. This was important for a number of reasons including the need to prove ages and previous convictions against persons charged before a court. Due to the size of London and its large, mobile population, this was particularly difficult in the Metropolitan Police area. The police had to rely largely on personal knowledge in order to prove identifications and contacts at police stations. Initially officers attended Police/Magistrates courts at remand hearings to try to bring about identifications, this was followed by attendances at Remand Prisons but the system only started to show results when prison warders were included. The other step taken was to visit the Convict Prisons to inspect prisoners prior to their release, again in this they were assisted by warders. Initially uniformed officers were used in these tasks but eventually detective officers took over the role, they were later replaced by officers from the Convict Supervision Office. The problem was eventually resolved at the very end of the Victorian period with the introduction of fingerprinting.
Portable QCD codes for Massively Parallel Processors. UKQCD collaboration
Nick Stanford
Physics , 1993,
Abstract: We present a new set of QCD codes in both message passing and data parallel versions. The message passing package used is PARMACS, although other packages may be used. Data parallel software is written in High Performance fortran, an emerging standard based on Fortran 90. Software engineering methods have been applied to a physics application to create thoroughly tested and documented codes for the next generation of massively parallel supercomputers.
Brunnian braids and some of their generalizations
Theodore Stanford
Mathematics , 1999,
Abstract: We use a variation on the commutator collection process to characterize those pure braids which become trivial when any one strand is deleted, or, more generally, those pure braids which become trivial when all the strands in any one of a list of sets of strands is deleted.
Some computational results on mod 2 finite-type invariants of knots and string links
Ted Stanford
Mathematics , 2004,
Abstract: We publish a table of primitive finite-type invariants of order less than or equal to six, for knots of ten or fewer crossings. We note certain mod-2 congruences, one of which leads to a chirality criterion in the Alexander polynomial. We state a computational result on mod-2 finite-type invariants of 2-strand string links.
Women and postfertilization effects of birth control: consistency of beliefs, intentions and reported use
Huong M Dye, Joseph B Stanford, Stephen C Alder, Han S Kim, Patricia A Murphy
BMC Women's Health , 2005, DOI: 10.1186/1472-6874-5-11
Abstract: A questionnaire was administered in family practice and obstetrics and gynecology clinics in Salt Lake City, Utah, and Tulsa, Oklahoma. Participants included women ages 18–50 presenting for any reason and women under age 18 presenting for family planning or pregnancy care. Analyses were based on key questions addressing beliefs about whether specific birth control methods may act after fertilization, beliefs about when human life begins, intention to use a method that may act after fertilization, and reported use of specific methods. The questionnaire contained no information about the mechanism of action of any method of birth control. Responses were considered inconsistent if actual use contradicted intentions, if one intention contradicted another, or if intentions contradicted beliefs.Of all respondents, 38% gave consistent responses about intention to not use or to stop use of any birth control method that acted after fertilization, while 4% gave inconsistent responses. The corresponding percentages for birth control methods that work after implantation were 64% consistent and 2% inconsistent. Of all respondents, 34% reported they believed that life begins at fertilization and would not use any birth control method that acts after fertilization (a consistent response), while 3% reported they believed that life begins at fertilization but would use a birth control method that acts after fertilization (inconsistent). For specific methods of birth control, less than 1% of women gave inconsistent responses. A majority of women (68% or greater) responded accurately about the mechanism of action of condoms, abstinence, sterilization, and abortion, but a substantial percentage of women (between 19% and 57%) were uncertain about the mechanisms of action of oral contraceptives, intrauterine devices (IUDs), Depo-Provera, or natural family planning.Women who believe that life begins at fertilization may not intend to use a birth control method that could have postfertiliz
Merits and Limits of Ecosystem Protection for Conserving Wild Salmon in a Northern Coastal British Columbia River
Aaron C. Hill,Thomas S. Bansak,Bonnie K. Ellis,Jack A. Stanford
Ecology and Society , 2010,
Abstract: Loss and degradation of freshwater habitat reduces the ability of wild salmon populations to endure other anthropogenic stressors such as climate change, harvest, and interactions with artificially propagated fishes. Preservation of pristine salmon rivers has thus been advocated as a cost-effective way of sustaining wild Pacific salmon populations. We examine the value of freshwater habitat protection in conserving salmon and fostering resilience in the Kitlope watershed in northern coastal British Columbia—a large (3186 km2) and undeveloped temperate rainforest ecosystem with legislated protected status. In comparison with other pristine Pacific Rim salmon rivers we studied, the Kitlope is characterized by abundant and complex habitats for salmon that should contribute to high resilience. However, biological productivity in this system is constrained by naturally cold, light limited, ultra-oligotrophic growing conditions; and the mean (± SD) density of river-rearing salmonids is currently low (0.32 ± 0.27 fish per square meter; n = 36) compared to our other four study rivers (grand mean = 2.55 ± 2.98 fish per square meter; n = 224). Existing data and traditional ecological knowledge suggest that current returns of adult salmon to the Kitlope, particularly sockeye, are declining or depressed relative to historic levels. This poor stock status—presumably owing to unfavorable conditions in the marine environment and ongoing harvest in coastal mixed-stock fisheries—reduces the salmon-mediated transfer of marine-derived nutrients and energy to the system's nutrient-poor aquatic and terrestrial food webs. In fact, Kitlope Lake sediments and riparian tree leaves had marine nitrogen signatures (δ15N) among the lowest recorded in a salmon ecosystem. The protection of the Kitlope watershed is undoubtedly a conservation success story. However, "salmon strongholds" of pristine watersheds may not adequately sustain salmon populations and foster social and ecological resilience without more holistic and risk-averse management that accounts for uncertainty and interactions between ecosystem fertility, harvest, climate dynamics, and food web dynamics in the marine and freshwater environments encompassed by the life cycle of the fish.
Color--Luminosity Relations for the Resolved Hot Stellar Populations in the Centers of M 31 and M 32
T. M. Brown,H. C. Ferguson,S. A. Stanford,J. -M. Deharveng
Physics , 1998, DOI: 10.1086/306079
Abstract: We present Faint Object Camera (FOC) ultraviolet images of the central 14x14'' of Messier 31 and Messier 32. The hot stellar population detected in the composite UV spectra of these nearby galaxies is partially resolved into individual stars, and their individual colors and apparent magnitudes are measured. We detect 433 stars in M 31 and 138 stars in M 32, down to detection limits of m_F275W = 25.5 mag and m_F175W = 24.5 mag. We investigate the luminosity functions of the sources, their spatial distribution, their color-magnitude diagrams, and their total integrated far-UV flux. Although M 32 has a weaker UV upturn than M 31, the luminosity functions and color-magnitude diagrams of M 31 and M 32 are surprisingly similar, and are inconsistent with a majority contribution from any of the following: PAGB stars more massive than 0.56 Msun, main sequence stars, or blue stragglers. Both the the luminosity functions and color-magnitude diagrams are consistent with a dominant population of stars that have evolved from the extreme horizontal branch (EHB) along tracks with masses between 0.47 and 0.53 Msun. These stars are well below the detection limits of our images while on the zero-age EHB, but become detectable while in the more luminous (but shorter) AGB-Manque' and post-early asymptotic giant branch (PEAGB) phases. The FOC observations require that only a only a very small fraction of the main sequence population (2% in M 31 and 0.5% in M 32) in these two galaxies evolve though the EHB and post-EHB phases, with the remainder evolving through bright PAGB evolution that is so rapid that few if any stars are expected in the small field of view covered by the FOC.
The Most Distant X-ray Clusters and the Evolution of their Space Density
P. Rosati,S. Borgani,R. Della Ceca,S. A. Stanford,P. R. Eisenhardt,C. Lidman
Physics , 2000,
Abstract: We briefly review our current knowledge of the space density of distant X-ray clusters as measured by several ROSAT serendipitous surveys. We compare old and new determinations of the cluster X-ray Luminosity Function (XLF) at increasing redshifts, addressing the controversial issue of the evolution of its high end. We use complete subsamples, drawn from the ROSAT Deep Cluster Survey (RDCS), to quantify the statistical significance of the XLF evolution out to z ~1. A consistent observational picture emerges in which the bulk of the cluster population shows no significant evolution out to z ~1, whereas the most luminous systems (L_x >~ L* [0.5-2 keV] =~ 5x10^44 erg/s) were indeed rarer, at least at z >0.5, in keeping with the original findings of the EMSS. We also report on the recent spectroscopic identification of four clusters in the RDCS lying beyond z =1, the most distant X-ray clusters known to date, which set an interesting lower limit on the space density of clusters at z >1.
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