534 research outputs found
A conceptual framework for the future of sea-level rise and land uplift changes in the Vaasa region of Finland
This paper uses the Vaasa region of Finland as an illustrative case study to explore how the relationships between climate change, sea-level rise and land uplift may offer applications in forecasting future land uplift changes. Using a comparative literature review and analysis of open source data, a conceptual framework is developed to ex-amine causes-effect relationships between them. The sea-level rise around the world by the end of the 21st century shows dramatic effects all over the world. However, the rate of land uplift in the Vaasa region is higher than the rate of sea-level rise. This localised finding is different from global average rates for land uplift and sea-level rise. This indicates that although climate change is global, it can lead to very different regional expressions. This paper presents a first attempt to combine sea-level rise and land uplift into a single cohesive framework to sup-port future land uplift management. The results of this paper establish a conceptual framework for studies of vulnerability and adaptation to climate change that can ben-efit local, regional and global communities
Shape coexistence at the proton drip-line: First identification of excited states in 180Pb
Excited states in the extremely neutron-deficient nucleus, 180Pb, have been
identified for the first time using the JUROGAM II array in conjunction with
the RITU recoil separator at the Accelerator Laboratory of the University of
Jyvaskyla. This study lies at the limit of what is presently achievable with
in-beam spectroscopy, with an estimated cross-section of only 10 nb for the
92Mo(90Zr,2n)180Pb reaction. A continuation of the trend observed in 182Pb and
184Pb is seen, where the prolate minimum continues to rise beyond the N=104
mid-shell with respect to the spherical ground state. Beyond mean-field
calculations are in reasonable correspondence with the trends deduced from
experiment.Comment: 5 pages, 4 figures, submitted to Phys.Rev.
Microstructure and tribological properties of solid lubricant-doped CMT-WAAMed Stellite deposits
A large share of the worldâs total energy consumption is used to overcome friction. Therefore, low friction wear-resistant materials are needed. Solid lubricants are solid-phase materials that can reduce friction at different temperatures between two surfaces sliding against each other without the need for a grease or liquid oil medium. In this study, Cold Metal Transfer Wire Arc Additive Manufacturing (CMT-WAAM) was used to deposit solid lubricant (WS2, MoS2, CaF2) doped hypoeutectic Stellite alloy. Fabricated deposits possessed crack- and pore-free microstructures consisting of Îł-Co and M7C3 carbide eutectics embedded with chromium sulfides and microhardness values ofâ~â530 HV1. They were also tested in self-mated unidirectional sliding wear tests in dry conditions at room temperature (RT) and at 300 °C in an air atmosphere. The results showed that the dynamic coefficient of friction (COF) decreasedâ~â27% at RT andâ~â21% at 300 °C without losing the wear properties. During sliding wear tests severe strain hardening occurred and Îł-Co was found to transform to Δ-Co. The developed deposits can be used as hard facings or 3D printed components in applications that require good sliding wear properties at different temperatures such as metal forming tools, power transmission components, valves, and internal parts of combustion engines.Peer reviewe
Search for Fingerprints of Tetrahedral Symmetry in
Theoretical predictions suggest the presence of tetrahedral symmetry as an
explanation for the vanishing intra-band E2-transitions at the bottom of the
odd-spin negative parity band in . The present study reports on
experiment performed to address this phenomenon. It allowed to determine the
intra-band E2 transitions and branching ratios B(E2)/B(E1) of two of the
negative-parity bands in .Comment: presented by Q.T. Doan at XLII Zakopane School of Physics: Breaking
Frontiers: Submicron Structures in Physics and Biology, May 2008. 5 pages,
minor corrections. To be published in the proceeding
First observation of excited states in 173Hg
The neutron-deficient nucleus 173Hg has been studied following
fusion-evaporation reactions. The observation of gamma rays decaying from
excited states are reported for the first time and a tentative level scheme is
proposed. The proposed level scheme is discussed within the context of the
systematics of neighbouring neutron-deficient Hg nuclei. In addition to the
gamma-ray spectroscopy, the alpha decay of this nucleus has been measured
yielding superior precision to earlier measurements.Comment: 5 pages, 4 figure
Evaluation of the Ez-HBT Helicobacter blood test to establish Helicobacter pylori eradication
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73012/1/j.1365-2036.2005.02655.x.pd
Improving Colorectal Cancer Screening Decision Making Processes
Introduction:
Although shared decision making is recommended for cancer screening, it is not routinely completed in practice because of time constraints. We evaluated a process for improving decision making about colorectal cancer (CRC) screening using mailed decision aids (DA) with follow-up telephone support in primary care practices.
Methods:
We identified patients aged 50-75 who were not up to date with CRC screening in three primary care practices. DA were distributed via mail with telephone follow-up to eligible patients, and charts were reviewed six months later for CRC screening completion.
Results:
Among 1,064 eligible patients who received the mailed DA, 513 (48.2%) were reached by phone. During the six months after the intervention, 148/1064 (13.9%) patients were screened for CRC (4.8% underwent FIT, 9.1% underwent colonoscopy). Younger patients (aged 50-54) had higher rates of any screening (32.4%) compared with all other age groups (range 12.8%-19.6%), p=0.026, while Medicaid patients had the lowest rates of screening (4.0%), and insured patients had the highest rates (45.3%), p=0.003. Overall, 113/513 (22.0%) who were reached by phone went on to complete screening within 6 months, compared with 35/551 (6.4%) of patients who were not reached by phone (p
Conclusion:
A standard process for identifying patients unscreened for CRC and DA distribution via mail with telephone decision support modestly increased CRC screening and is consistent with the goal of providing preference-sensitive care and informed decision making. Improving care processes to include decision support outside of office visits is possible in primary care practices
Quasiparticle alignments and alpha-decay fine structure of Pt-175
Excited states and decay properties of 175 Pt have been investigated using the 92 Mo ( 86 Sr , 2 p n ) fusion-evaporation reaction. The JUROGAM I Îł -ray spectrometer and the GREAT spectrometer were used in conjunction with the gas-filled recoil separator RITU for the measurement of the radiation at the target and focal plane positions, respectively. Two new band structures, assigned to be based on the I Ï = ( 7 / 2 â ) ground state in 175 Pt, have been established and the known yrast band has been extended up to I Ï = ( 49 / 2 + ) . Rotational properties of the excited states in 175 Pt have been investigated within the cranked shell-model formalism. The low-frequency changes in the alignments of the positive- and negative-parity bands are interpreted as a sign of proton-pair excitations in the rotating core. Furthermore, the α -decay measurements reveal a candidate for a fourth α -decay branch in 175 Pt, feeding a non-yrast state in 171 Os
Study of Intermediate-spin States of Y-98
The nuclear structure of the oddâodd nucleus 98Y has been re-investigated
by observing prompt Îł rays emitted following the proton-induced fission
of a 238U target, using the JUROGAM-II multidetector array. New highspin
decays have been observed and placed in the level schemes using triple
coincidences. The experimental level energies and Îł-decay patterns are
compared to GICM and QPRM calculations, assuming that this neutronrich
N = 59 isotone is spherical at low energies and prolate deformed at
intermediate spins.Web of Science47391691
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