253,047 research outputs found

    Hubungan antara Peran Ibu dalam Pemberian Makanan Pendamping ASI dengan Status Gizi Balita Usia 6 – 24 Bulan di Puskesmas Cermee Kabupaten Bondowoso Tahun 2011

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    Nutrient status is main problem which effect to the human resources quality. Based on data by the high incidence of malnutrition in Cermee of Public Health Bondowoso Sub Province are caused by a less of role of mother in provision of complementary feeding. The entirety objective of this research is to know the relationship between the role of mother to provision of complementary feeding and nutrient status of toddler 6 – 24 months in Cermee of Public health Bondowoso Sub Province in 2011. Specific objective of this research is to identify role of mother in provision of complementary feeding, identify the nutrient status of toddler 6 – 24 months, and analyzing the relationship between the role of mother to provision of complementary feeding and nutrient status of toddler 6 – 24 months in Cermee of Public Health Bondowoso Sub Province in 2011. The role of mother to provision of complementary feeding for toddler include preparing food, managing the food, and provide the food. Many factors that can affect the nutrient status of toddler, such us food consumption, infectious disease, psychology, genetic and health service. This research is analytic correlative research and use observasional methode. The population are all of the mothers and toddler ages 6 to 24 moths in Cermee of Public Health Bondowoso Sub Province. The sample is that most mothers and toddlers ages 6 to 24 months who meet inclusion and exclusion criteria with a large sample of 35 mothers and toddlers. The sampling is purposive sampling. The instrument is checklist and table categories of nitritient status based index of weight to age. Analysis the data is Sperman rank correlation test. The results of research is nine mothers (25.7%) play less in the provision of complementary feeding and three infants (8.6%) had severe malnutrition. The results of bivariate analysis is significant value is 0.029 and the correlation coefficient is 0.369. The results of analysis there is correlation between maternal role in the provision of complementary feeding with nutritional status of children in Cermee of Public Health District Bondowoso in 2011 and the strong\u27s correlation between both is medium. Factor in the role of mothers giving complementary feeding was not the only factor affecting the incidence of malnutrition, but the increasing role of mothers in the provision of complementary feeding remains the best option to reduce the high incidence of malnutrition

    Harmonization of space-borne infra-red sensors measuring sea surface temperature

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    Sea surface temperature (SST) is observed by a constellation of sensors, and SST retrievals are commonly combined into gridded SST analyses and climate data records (CDRs). Differential biases between SSTs from different sensors cause errors in such products, including feature artefacts. We introduce a new method for reducing differential biases across the SST constellation, by reconciling the brightness temperature (BT) calibration and SST retrieval parameters between sensors. We use the Advanced Along-Track Scanning Radiometer (AATSR) and the Sea and Land Surface Temperature Radiometer (SLSTR) as reference sensors, and the Advanced Very High Resolution Radiometer (AVHRR) of the MetOp-A mission to bridge the gap between these references. Observations across a range of AVHRR zenith angles are matched with dual-view three-channel skin SST retrievals from the AATSR and SLSTR. These skin SSTs act as the harmonization reference for AVHRR retrievals by optimal estimation (OE). Parameters for the harmonized AVHRR OE are iteratively determined, including BT bias corrections and observation error covariance matrices as functions of water-vapor path. The OE SSTs obtained from AVHRR are shown to be closely consistent with the reference sensor SSTs. Independent validation against drifting buoy SSTs shows that the AVHRR OE retrieval is stable across the reference-sensor gap. We discuss that this method is suitable to improve consistency across the whole constellation of SST sensors. The approach will help stabilize and reduce errors in future SST CDRs, as well as having application to other domains of remote sensing

    Generation of SST anomalies in the midlatitudes

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    Analyses of monthly mean sea surface temperatures (SST) from a hierarchy of global cou- pled ocean-atmosphere models have been carried out with the focus on the midlatitudes (20N-45N). The spectra of the simulated SSTs have been tested against the null hypothe- sis of Hasselmann's stochastic climate model, which assumes an AR(1)-process for the SST variability. It has been found that the spectra of the SST variability in CGCl\/ls with fully dynamical ocean models are significantly different from the AR(1)-process, while the SST variability in an AGCM coupled to a slab ocean is consistent with an AR(1)-process. The deviation of the SST variability in CGCl\/ls with fully dynamical ocean models from the AR(1)-process are not characterized by spectral peaks but are due to a different shape of the spectra. This can be attributed to local air-sea interactions which can be simulated with an AGCM coupled to a slab ocean with dynamical varying mixed layer depth

    Selective expression of KCNS3 potassium channel α-subunit in parvalbumin-containing GABA neurons in the human prefrontal cortex

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    The cognitive deficits of schizophrenia appear to be associated with altered cortical GABA neurotransmission in the subsets of inhibitory neurons that express either parvalbumin (PV) or somatostatin (SST). Identification of molecular mechanisms that operate selectively in these neurons is essential for developing targeted therapeutic strategies that do not influence other cell types. Consequently, we sought to identify, in the human cortex, gene products that are expressed selectively by PV and/or SST neurons, and that might contribute to their distinctive functional properties. Based on previously reported expression patterns in the cortex of mice and humans, we selected four genes: KCNS3, LHX6, KCNAB1, and PPP1R2, encoding K+ channel Kv9.3 modulatory α-subunit, LIM homeobox protein 6, K+ channel Kvβ1 subunit, and protein phosphatase 1 regulatory subunit 2, respectively, and examined their colocalization with PV or SST mRNAs in the human prefrontal cortex using dual-label in situ hybridization with 35S- and digoxigenin-labeled antisense riboprobes. KCNS3 mRNA was detected in almost all PV neurons, but not in SST neurons, and PV mRNA was detected in >90% of KCNS3 mRNA-expressing neurons. LHX6 mRNA was detected in almost all PV and >90% of SST neurons, while among all LHX6 mRNA-expressing neurons 50% expressed PV mRNA and >44% expressed SST mRNA. KCNAB1 and PPP1R2 mRNAs were detected in much larger populations of cortical neurons than PV or SST neurons. These findings indicate that KCNS3 is a selective marker of PV neurons, whereas LHX6 is expressed by both PV and SST neurons. KCNS3 and LHX6 might be useful for characterizing cell-type specific molecular alterations of cortical GABA neurotransmission and for the development of novel treatments targeting PV and/or SST neurons in schizophrenia. © 2012 Georgiev et al

    Interannual variability of the tropical Atlantic independent of and associated with ENSO: Part I. The North Tropical Atlantic

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    The interannual variability of the tropical Atlantic ocean-atmosphere system is examined using 50 years of sea-surface temperature (SST) and re-analysis data, and satellite data when available. A singular value decomposition analysis of 12- to 72-month bandpass filtered SST and zonal wind stress reveals two dominant modes of interannual variability. The SST anomalies are confined to the North Tropical Atlantic (NTA) in the first mode and extend over the equatorial and South Tropical Atlantic in the second mode. No evidence is found for an Atlantic SST dipole. The structure of the first (NTA) mode is examined in detail here, while the second mode has been described in a companion paper. In particular, the relationship of the NTA mode with El Nino-Southern Oscillation (ENSO) is investigated. There are 12 NTA events (seven warm and five cold) that are associated with ENSO, and 18 NTA events (seven warm and 11 cold) that are independent of ENSO. The ENSO-associated NTA events appear to be a passive response to remote ENSO forcing, mainly via a Pacific-North America (PNA)-like wave train that induces SST anomalies over the NTA through changes in the surface wind and latent heat flux. The NTA anomalies peak four months after ENSO. There does not appear to be an atmospheric response to the NTA SST anomalies as convection over the Atlantic is suppressed by the anomalous Walker circulation due to ENSO. The ENSO-independent NTA events also appear to be induced by an extratropical wave train from the Pacific sector (but one that is independent of Pacific SST), and forcing by the North Atlantic Oscillation (NAO) also contributes. As the event matures, the atmosphere does respond to the NTA SST anomalies, with enhanced convection over the Caribbean and a wave train that propagates northeastward to Europe

    The CMS Si-strip Tracker

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    The Compact Muon Solenoid (CMS) experiment at LHC features the largest Silicon Strip Tracker (SST) ever build. This device is immersed in a 4T magnetic field and, in conjunction with a Pixel system, it allows the momentum of the charged particles to be measured and the heavy-flavour final states to be tagged despite the hostile radiation environment. The impact of operating conditions and physics requirements on the SST layout and design choices is discussed and the expected performances are reviewed. The SST collaboration is now facing the production of the ~15000 modules and their assembly into the SST substructures. A status is given.Comment: 6 pages, 9 figures, to be published in proceedings of "8th ICATPP Conference on Astroparticle, Particle, Space Physics, Detectors and Medical Physics Applications" Como (Italy), October 200

    A Solid State Transformer model for power flow calculations

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    This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST can have on the distribution system performance. Test distribution systems of different characteristics and size have been simulated during different time periods. The simulations have been carried out assuming voltage-dependent loads and considering that power flow through either the HV/MV substation transformer or any of the MV/LV distribution transformers can be bidirectional. Simulation results prove that a positive impact should be expected on voltages at both MV and LV levels, but the efficiency of current SST designs should be improved.Postprint (author's final draft
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