214 research outputs found
A Discussion on Fall Detection Issues and Its Deployment: When cloud meets battery
IEEE International Conference on Cloud Computing and Big Data Analysis (3rd. 2018., Chengdu, China
Statistical analysis and use of questionnaries for evaluation of the knouledge at university. A practical case
The accomplished experience, using the data processing platform Moodle, in the execution of multiple-option questionnaires with automatic evaluation; is presented. The obtained results have been utilized subsequently for their statistical analysis by means of centered measures and basic dispersion. The documented experience was implemented in the subject: Construction of Traditional Structures and Equipments (CETE), in the Technical Architecture (AT) career of the Technical University of Catalonia (UPC) The summary of the information includes the results obtained for a total sampling of 437 students distributed in four different groups. In those groups, three different professors taught the classes for the two available schedules. The obtained results facilitate to discern among the different professors, student typologies, student gender, different levels of acquired knowledge, relation to other evaluation techniques applied, and relation to the documented prior knowledge. It is proposed and analyzed, basing on the obtained results, educational adaptations that will allow future improvements in subjects with similar requests or needs on the part of the students. Similarly, possible poor preceding formation in students or in the teaching by professors can be determined; both shall be corrected after the analysis. This work is part of the effort achieved in the educational improvement field, that is being executed inside the Upper-Technical Building College of Barcelona (EPSEB) and framed in the European Space of Higher Education. The objective is to show the current descriptive focal point on the learning and continuous evaluation field, applied in this subjectPostprint (published version
Standardization of the LPUE series of the Northern Spanish coastal bottom otter trawl fleet to tune the assessment of the Iberian megrims stocks
Leishmania spp. epidemiology of canine leishmaniasis in the Yucatan Peninsula
Canine Leishmaniasis is widespread in various Mexican states, where different species of Leishmania have been isolated from dogs. In the present study, we describe the detection of L. braziliensis, L. infantum, and L. mexicana in serum of dogs from the states of Yucatan and Quintana Roo in the Yucatan Peninsula (Mexico). A total of 412 sera were analyzed by ELISA using the total extract of the parasite and the iron superoxide dismutase excreted by different trypanosomatids as antigens. We found the prevalence of L. braziliensis to be 7.52%, L. infantum to be 6.07%, and L. mexicana to be 20.63%, in the dog population studied. The results obtained with ELISA using iron superoxide dismutase as the antigen were confirmed by western blot analysis with its greater sensitivity, and the agreement between the two techniques was very high
Prevalence and clinical impact of Streptococcus pneumoniae nasopharyngeal carriage in solid organ transplant recipients
Background: S. pneumoniae is the leading cause of community-acquired pneumonia in the solid organ transplant
recipient (SOTR); nevertheless, the prevalence of colonization and of the colonizing/infecting serotypes has not
been studied in this population. In this context, the aim of the present study was to describe the rate,
characteristics, and clinical impact of S. pneumoniae nasopharyngeal carriage.
Methods: A prospective observational cohort of Solid Organ Transplant recipients (SOTR) was held at the University
Hospital Virgen del Rocío, Seville, Spain with the aim to evaluate the S. pneumoniae colonization and the serotype
prevalence in SOTR. Two different pharyngeal swabs samples from 500 patients were included in two different
seasonal periods winter and spring/summer. Optochin and bile solubility tests were performed for the isolation of
thew strains. Antimicrobial susceptibility studies (MICs, mg/l) of levofloxacin, trimethoprim-sulfamethoxazole,
penicillin, amoxicillin, cefotaxime, ceftriaxone, erythromycin, azithromycin and vancomycin for each isolate were
determined by E-test strips. Capsular typing was done by sequential multiplex PCR reactions. A multivariate logistic
regression analysis of factors potentially associated with pneumococcal nasopharyngeal carriage and disease was
performed.
Results: Twenty-six (5.6%) and fifteen (3.2%) patients were colonized in winter and spring/summer periods,
respectively. Colonized SOT recipients compared to non-colonized patients were more frequently men (79.5% vs.
63.1%, P < 0.05) and cohabitated regularly with children (59% vs. 32.2%, P < 0.001). The most prevalent serotype in
both studied periods was 35B. Forty-five percent of total isolates were included in the pneumococcal vaccine
PPV23. Trimethoprim-sulfamethoxazole and macrolides were the less active antibiotics. Three patients had non-
bacteremic pneumococcal pneumonia, and two of them died.
Conclusions: Pneumococcal colonization in SOTR is low with the most colonizing serotypes not included in the
pneumococcal vaccines.Pfizer, 2014 ASPIRE Awards in Vaccine Research in Europe (Pfizer Reference # WI191483)Plan Nacional de I + D + i 2013–2016 , Instituto de Salud Carlos III,
Ministerio de Economía, Industria y Competitividad REIPI RD16/0016/0009
Fondo Regional de Desarrollo Europeo "Una forma de alcanzar Europa", Programa operativo Crecimiento inteligente 2014–2020
A beam-beam monitoring detector for the MPD experiment at NICA
The Multi-Purpose Detector (MPD) is to be installed at the Nuclotron Ion
Collider fAcility (NICA) of the Joint Institute for Nuclear Research (JINR).
Its main goal is to study the phase diagram of the strongly interacting matter
produced in heavy-ion collisions. These studies, while providing insight into
the physics of heavy-ion collisions, are relevant for improving our
understanding of the evolution of the early Universe and the formation of
neutron stars. In order to extend the MPD trigger capabilities, we propose to
include a high granularity beam-beam monitoring detector (BE-BE) to provide a
level-0 trigger signal with an expected time resolution of 30 ps. This new
detector will improve the determination of the reaction plane by the MPD
experiment, a key measurement for flow studies that provides physics insight
into the early stages of the reaction. In this work, we use simulated Au+Au
collisions at NICA energies to show the potential of such a detector to
determine the event plane resolution, providing further redundancy to the
detectors originally considered for this purpose namely, the Fast Forward
Detector (FFD) and the Hadron Calorimeter (HCAL). We also show our results for
the time resolution studies of two prototype cells carried out at the T10 beam
line at the CERN PS complex.Comment: 16 pages, 12 figures. Updated to published version with added
comments and correction
Identification of excreted iron superoxide dismutase for the diagnosis of Phtytomonas
An excreted iron superoxide dismutase (FeSODe) of pI 3.6 with a molecular weight of 28-30 kDa was detected in the in vitro culture of Phytomonas isolated from Euphorbia characias (SODeCHA) and from Lycopersicon esculentum (SODeTOM), in Grace's medium without serum. These FeSODe excreted into the medium had immunogenic capacity: the positivity of the anti-SODeCHA serum persisted to a dilution of 1/30,000, and for the anti-SODeTOM to 1/10,000 by Western blot. In addition, cross reaction was detected between the anti-SODe serum of Phytomonas isolated from E. characias against SODeTOM, and the anti-SODe serum from L. esculentum with SODeCHA. This characteristic offers the possibility of its use to diagnose plant trypanosomatids. The validation of the test was confirmed by experimental inoculation of tomato fruits with Phytomonas isolated from L. esculentum. At 7, 10, 15, and 21 days post infection, it was possible to detect the presence of the parasites with the anti-SODe serum of Phytomonas isolated from L. esculentum at a dilution of 1/250. These serological results were confirmed by visualization of the parasites by optical microscopy. The data of this study confirm that the SOD is sufficient to identify a trypanosomatid isolated from plants as belonging to the genus Phytomonas.Finacial support: ATP 2002/03: Circulation of Trypanosomatidae Project (CIRAD, France), grant BIO-2000-1429 (University of Granada, Spain)
P73 plays a role in erythroid differentiaion through GATA1 induction
The TP73 gene gives rise to transactivation domain-p73 isoforms (TAp73) as well as ΔNp73 variants with a truncated N terminus. Although TAp73α and -Β proteins are capable of inducing cell cycle arrest, apoptosis, and differentiation, ΔNp73 acts in many cell types as a dominant-negative repressor of p53 and TAp73. It has been proposed that p73 is involved in myeloid differentiation, and its altered expression is involved in leukemic degeneration. However, there is little evidence as to which p73 variants (TA or ΔN) are expressed during differentiation and whether specific p73 isoforms have the capacity to induce, or hinder, this differentiation in leukemia cells. In this study we identify GATA1 as a direct transcriptional target of TAp73α. Furthermore, TAp73α induces GATA1 activity, and it is required for erythroid differentiation. Additionally, we describe a functional cooperation between TAp73 and ΔNp73 in the context of erythroid differentiation in human myeloid cells, K562 and UT-7. Moreover, the impaired expression of GATA1 and other erythroid genes in the liver of p73KO embryos, together with the moderated anemia observed in p73KO young mice, suggests a physiological role for TP73 in erythropoiesis.Peer reviewe
Validation of a simple method for the interpretation of uterine cytology in cows
One of the main drawbacks of using endometrial cytology in cows is the time required for sample
collection and interpretation. It is recommended to count a large number of polymorphonuclear neutrophils (PMN)
and to calculate their overall percentage. However, since counting a large number of cells is a laborious method, it
would be preferable to simplify the analysis by counting the number of PMN in few microscopic fields. Therefore, the
aim of this study was to assess whether a simple test, based on calculating the average number of PMN in 10 fields at
1000×, could be a reliable technique for the diagnosis of endometritis. Two hundred and sixty endometrial samples
were taken from Holstein cows at different postpartum stages using an adapted cytobrush. Smears obtained were
air-dried for fixing and stained with a Romanowsky-type procedure. To evaluate the counting method, the percentage
of PMN in 150 cells was calculated as well as the average number of PMN in 10 fields at 1000×. Receiver operating
characteristic (ROC) curves was constructed to evaluate both methods, the percentage of PMN (used as reference)
and the average number of PMN. It was observed that the area under the curve is (regardless of cut-off used) higher
than 0.99 and the correspondence between both methods were 1.58 PMN/field for the cut-off value of 15% and 2.40
PMN/field for the cut-off value of 20%. These results show that this simple method could be used to determine the
percentage of PMN in endometrial cytological samples and to diagnose endometritis in cowsSupported by the Xunta de Galicia (Galician Plan for Research and Technological Development; Grant No. PGIDIT07MRU002E) and the Friesian Federation of Galician, A Coruna, SpainS
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