201 research outputs found
Numerical simulations of corners in RC frames using Strut-and-Tie method and CDP model
Corners of reinforced concrete frames under opening bending moment should be always considered in complex stress conditions. A proper reinforcement of these corners demands some special methods instead of traditional algorithms. In this paper two chosen method are described, namely Strut-and-Tie (S&T) and FEM using Abaqus software. The second method uses Concrete Damaged Plasticity model, implemented in Abaqus code. The corners taken into consideration differ from each other in a reinforcement pattern. Moreover, two different cases of section heights are analyzed: same and different heights of elements joining in a corner. Calculations in S&T method allow to establish proper reinforcement and corner efficiency factor. Then the corners are modeled in Abaqus using CDP and results of crack patterns, efficiency factor, yielding, non-linear behavior and history of load are gained. An extra scientific problem described in this paper is a proper choice of CDP parameters
Audit Sistem Informasi Pada Perusahaan Dagang Aneka Gemilang Bandar Lampung Menggunakan Framework Cobit 4.1
Aneka Gemilang Trade Enterprises is a trading company that engaged in the trade field, particularly in learning tool needs from primary school to college. Now days, there are many the same type of business, it is certainty tighten the competition, as well as in the product quality side until the quality of services to customers. To measure the quality and service which are provided by the Aneka Gemilang Trade Enterprises can be focused and balanced with the company business objectives, it is needed to determine the alignment level of TI objectives with company objectives. In order to achieve the alignment between TI objectives and company objectives, it is required a measurement of balance level between company objectives with TI objectives using COBIT 4.1. By this audit decision, it is expected there is a significant progress toward the company. The optimum of service and provide of qualified goods are the activities that must be priority to strengthen the available business partner and try to add the business partner in the future, therefore Aneka Gemilang Trade Enterprise be able to open the branches in other potential district
Magneto-Optical Trapping and Sub-Doppler Cooling of a Polyatomic Molecule
We report magneto-optical trapping (MOT) of a polyatomic molecule, calcium
monohydroxide (CaOH). The MOT contains CaOH molecules at a
peak density of cm. CaOH molecules are further
sub-Doppler laser cooled in an optical molasses, to a temperature of 110(4)
K. The temperatures and densities achieved here make CaOH a viable
candidate for a wide variety of quantum science applications, including the
creation of optical tweezer arrays of CaOH molecules. This work also suggests
that laser cooling and magneto-optical trapping of many other polyatomic
species will be both feasible and practical.Comment: 6 pages, 4 figure
Immunolocalization of dually phosphorylated MAPKs in dividing root meristem cells of Vicia faba, Pisum sativum, Lupinus luteus and Lycopersicon esculentum
Key message In plants, phosphorylated MAPKs display
constitutive nuclear localization; however, not all
studied plant species show co-localization of activated
MAPKs to mitotic microtubules.
Abstract The mitogen-activated protein kinase (MAPK)
signaling pathway is involved not only in the cellular
response to biotic and abiotic stress but also in the regulation
of cell cycle and plant development. The role of
MAPKs in the formation of a mitotic spindle has been
widely studied and the MAPK signaling pathway was
found to be indispensable for the unperturbed course of cell
division. Here we show cellular localization of activated
MAPKs (dually phosphorylated at their TXY motifs) in
both interphase and mitotic root meristem cells of Lupinus
luteus, Pisum sativum, Vicia faba (Fabaceae) and Lycopersicon esculentum (Solanaceae). Nuclear localization
of activated MAPKs has been found in all species. Colocalization
of these kinases to mitotic microtubules was
most evident in L. esculentum, while only about 50 % of
mitotic cells in the root meristems of P. sativum and V.
faba displayed activated MAPKs localized to microtubules
during mitosis. Unexpectedly, no evident immunofluorescence
signals at spindle microtubules and phragmoplast
were noted in L. luteus. Considering immunocytochemical
analyses and studies on the impact of FR180204 (an
inhibitor of animal ERK1/2) on mitotic cells, we hypothesize
that MAPKs may not play prominent role in the
regulation of microtubule dynamics in all plant species
Recommended from our members
Enhanced methods for unbiased deep sequencing of Lassa and Ebola RNA viruses from clinical and biological samples
We have developed a robust RNA sequencing method for generating complete de novo assemblies with intra-host variant calls of Lassa and Ebola virus genomes in clinical and biological samples. Our method uses targeted RNase H-based digestion to remove contaminating poly(rA) carrier and ribosomal RNA. This depletion step improves both the quality of data and quantity of informative reads in unbiased total RNA sequencing libraries. We have also developed a hybrid-selection protocol to further enrich the viral content of sequencing libraries. These protocols have enabled rapid deep sequencing of both Lassa and Ebola virus and are broadly applicable to other viral genomics studies. Electronic supplementary material The online version of this article (doi:10.1186/s13059-014-0519-7) contains supplementary material, which is available to authorized users
Recommended from our members
Genomic surveillance elucidates Ebola virus origin and transmission during the 2014 outbreak
In its largest outbreak, Ebola virus disease is spreading through Guinea, Liberia, Sierra Leone, and Nigeria. We sequenced 99 Ebola virus genomes from 78 patients in Sierra Leone to ~2000× coverage. We observed a rapid accumulation of interhost and intrahost genetic variation, allowing us to characterize patterns of viral transmission over the initial weeks of the epidemic. This West African variant likely diverged from central African lineages around 2004, crossed from Guinea to Sierra Leone in May 2014, and has exhibited sustained human-to-human transmission subsequently, with no evidence of additional zoonotic sources. Because many of the mutations alter protein sequences and other biologically meaningful targets, they should be monitored for impact on diagnostics, vaccines, and therapies critical to outbreak response.Organismic and Evolutionary Biolog
Serum EPO and VEGF levels in patients with sleep-disordered breathing and acute myocardial infarction
Clinical Illness and Outcomes in Patients with Ebola in Sierra Leone
Background
Limited clinical and laboratory data are available on patients with Ebola virus disease (EVD). The Kenema Government Hospital in Sierra Leone, which had an existing infrastructure for research regarding viral hemorrhagic fever, has received and cared for patients with EVD since the beginning of the outbreak in Sierra Leone in May 2014.
Methods
We reviewed available epidemiologic, clinical, and laboratory records of patients in whom EVD was diagnosed between May 25 and June 18, 2014. We used quantitative reverse-transcriptase–polymerase-chain-reaction assays to assess the load of Ebola virus (EBOV, Zaire species) in a subgroup of patients.
Results
Of 106 patients in whom EVD was diagnosed, 87 had a known outcome, and 44 had detailed clinical information available. The incubation period was estimated to be 6 to 12 days, and the case fatality rate was 74%. Common findings at presentation included fever (in 89% of the patients), headache (in 80%), weakness (in 66%), dizziness (in 60%), diarrhea (in 51%), abdominal pain (in 40%), and vomiting (in 34%). Clinical and laboratory factors at presentation that were associated with a fatal outcome included fever, weakness, dizziness, diarrhea, and elevated levels of blood urea nitrogen, aspartate aminotransferase, and creatinine. Exploratory analyses indicated that patients under the age of 21 years had a lower case fatality rate than those over the age of 45 years (57% vs. 94%, P=0.03), and patients presenting with fewer than 100,000 EBOV copies per milliliter had a lower case fatality rate than those with 10 million EBOV copies per milliliter or more (33% vs. 94%, P=0.003). Bleeding occurred in only 1 patient.
Conclusions
The incubation period and case fatality rate among patients with EVD in Sierra Leone are similar to those observed elsewhere in the 2014 outbreak and in previous outbreaks. Although bleeding was an infrequent finding, diarrhea and other gastrointestinal manifestations were common. (Funded by the National Institutes of Health and others.
- …