679 research outputs found
Pola Komunikasi Keluarga dalam Menanamkan Tata Cara Berpakaian Melayu di Kelurahan Peranap Kabupaten Indragiri Hulu
Way of dressed of men and women isno longer paying attention to ethics in the dressing.On men more delighted by imitate the outside culture, such as wearing torn long pants, wear boxer (shortpants) when gatheredortravelling, and leotardsclothes that show the posture of men body. While in the women should dress closes the nakedness, but most women have forgotten by the norm in dress, which they wear clothes that show their body or transparent dress. The flurry of parents in employment, as well as parents do not teach children to use Malay clothing in accordance with the values of Malay culture, making the child, adolescent or adult use clothing in accordance with the tastes and cultural influences from the outside. This research aims to know the pattern of family communication in instilling way of malay dress in Peranap Villageand factors that affect family communication patternin instilling way of malay dress in Peranap Village.This research used descriptive analysis with qualitative research and retrieval using a purposive sampling.Number of informantwas four with data collection techniques namely observation, interview and documentation. As for the legitimate examination of technique of data, researchers using the technique of prolongation of participation. The data obtained was processed to the reduction, served up to togenerated a general conclusion.The result of this research shows that there are existence of authoritarian communication patternin the pattern of family communication in instilling way of malay dressed in Peranap Village.There is a sense the attitude of resolute, angry, reproving violates, of punishment. Furthermore there is a pattern of communication democracy that freedom, openness and the rules agreed by members of the family. Factors that affect family communication patterns in instilling way of malay dress in Peranap Village namely self-esteem factor that reflects the personal self, authority and does not give rise to defamation or waffle in society. And inability to reveal where not being a statute or an obligation and there are other informants said incompetence revealed in Malay dress became a source of the problem
Studi Hubungan Substrat Dasar dan Kandungan Bahan Organik dalam Sedimen dengan Kelimpahan Hewan Makrobenthos di Muara Sungai Sayung Kabupaten Demak
Muara sungai Sayung merupakan daerah yang telah mengalami Perubahan kondisi ekologi perairan yang disebabkan karena pengaruh pasang tertinggi (rob). Daerah tersebut telah berubah menjadi daerah tergenang dan banyak didominasi oleh substrat berlumpur. Substrat lumpur kaya akan bahan organik dan akan menjadi cadangan makanan bagi hewan makrobenthos yang hidup di muara sungai. Tujuan dari penelitian ini adalah untuk mengetahui hubungan substrat dasar dan kandungan bahan organik dalam sedimen dengan kelimpahan hewan makrobenthos, dan untuk mengetahui kondisi lingkungan Muara Sungai Sayung berdasarkan nilai keanekaragaman dan keseragaman hewan makrobenthos. Penelitian ini berdasarkan studi kasus dan menggunakan metode purposive sampling untuk pengambilan sampel. Hasil penelitian dari ketiga stasiun di Muara Sungai Sayung didapatkan kelimpahan hewan makrobenthos berkisar antara 363 – 4829 ind/m3. Hewan makrobenthos yang didapatkan selama penelitian terdiri dari 3 kelas yaitu Polychaeta, Gastropoda, dan Bivalvia. Hasil penelitian pada stasiun I nilai indeks keanekaragaman sebesar 0,63, indeks keseragaman sebesar 0,57, Stasiun II nilai indeks keanekaragaman sebesar 0,13, indeks keseragaman sebesar 0,19, dan Stasiun III diperoleh nilai indeks keanekaragaman sebesar 1,79 dan indeks keseragaman sebesar 0,78. Nilai keanekaragaman tergolong dalam kategori rendah sampai sedang yang menunjukkan bahwa kondisi lingkungan sudah tidak layak untuk kehidupan hewan makrobenthos di dalamnya dan nilai keseragaman termasuk dalam kategori kecil sampai tinggi yang menunjukkan bahwa komposisi jenis hewan makrobenthos tidak sama dan kondisi ekosistemnya tidak stabil sehingga rawan akan terjadinya penurunan pada fungsi ekosistemnya. Berdasarkan nilai uji regresi sederhana dan uji regresi berganda dimana nilai koefisien korelasi berkisar 0,9 < r ≤ 1,0 menunjukkan bahwa kelimpahan hewan makrobenthos memiliki hubungan yang sangat kuat dan memiliki korelasi yang sangat nyata dengan jenis substrat dasar dan kandungan bahan organik dalam sedimen
Observational Constraints to the Evolution of Massive Stars
We consider some aspects of the evolution of massive stars which can only be
elucidated by means of "indirect" observations, i.e. measurements of the
effects of massive stars on their environments. We discuss in detail the early
evolution of massive stars formed in high metallicity regions as inferred from
studies of HII regions in external galaxies.Comment: 6 pages, 1 figure; Invited Paper presented at the Roma-Trieste
Workshop 1999 "The Chemical Evolution of the Milky Way: Stars versus
Clusters", Vulcano Island (ME, Italy), 20-24 September, 1999, eds. F.
Giovannelli & F. Matteucci, Kluwer-Holland (in press
II WORKSHOP ON CHEMICAL SENSORS AND BIOSENSORS ELLIPSOMETRIC AND SURFACE PLASMON RESONANCE EFFECTS ON LB FILMS OF ORGANIC MATERIALS IN CONTROLLED ATMOSPHERE
ABSTRACT: Langmuir-Blodgett (LB) films of Cu(II) tetrakis-(3,3-dimethyl-1-butoxicarbonyl)phthalocyanine have been studied as regard their optical property. In particular electronic spectra in the UV-VIS spectral range and the optical constant of the LB multilayers have been carried out. In order to use these LB films as optical gas sensors, ellipsometric and surface plasmon resonance (SPR) measurements were carried out in controlled atmosphere. SPR measurements were conducted by using a system based on the Kretschmann configuration. LB monolayers of Cu(dmbc)Pc deposited as selective layer on a metal surface show changes of the reflectance on exposure to nitrogen dioxide mixed with dry air in low concentration. Moreover, ellipsometric measurements carried out on LB multilayers of Cu(dmbc)Pc deposited onto silicon substrates, have shown variation at a fixed wavelength in the thickness and complex refractive index when are exposed to different concentrations of toluene and tetrachloroethene
Mixing enhancement induced by viscoelastic micromotors in microfluidic platforms
Fine manipulation of fluid flows at the microscale has a tremendous impact on mass transport phenomena of chemical and biological processes inside microfluidic platforms. Fluid mixing in the laminar flow regime at low Reynolds number is poorly effective due to the inherently slow diffusive mechanism. As a strategy to enhance mixing and prompt mass transport, here, we focus on polyelectrolyte multilayer capsules (PMCs), embodying a catalytic polyoxometalate, as microobjects to create elastic turbulence and as micromotors to generate chaotic flows by fuel-fed propulsions. The effects of the elastic turbolence and of the artificial propulsion on some basic flow parameters, such as pressure and volumetric flow rate, are studied by a microfluidic set-up including pressure and flow sensors. Numerical-handling and physical models of the experimental data are presented and discussed to explain the measured dependence of the pressure drop on the flow rate in presence of the PMCs. As a practical outcome of the study, a strong decrease of the mixing time in a serpentine microreactor is demonstrated. Unlike our previous reports dealing with capillarity flow studies, the present paper relies on hydrodynamic pumping experiments, that allow us to both develop a theoretical model for the understanding of the involved phenomena and demonstrate a successful microfluidic mixing application. All of this is relevant in the perspective of developing microobject-based methods to overcome microscale processes purely dominated by diffusion with potential improvements of mass trasport in microfluidic platforms. \ua9 2019 Elsevier B.V
Spin-coated thin films of metal porphyrin-phthalocyanine blend for an optochemical sensor of alcohol vapours
Abstract Organic thin films based on a blend of two types of metal-co-ordinated macromolecules, i.e. Zn(II) tetra-4-(2,4-di-tert-amylphenoxy)-phthalocyanine (ZnPc) and Cu(II) tetrakis(p-tert-butylphenyl)porphyrin (CuP) have been deposited by spin-coating and used as optical chemically interacting materials for the detection of methanol, ethanol and isopropanol vapours. This paper reports the use of a specific optical technique consisting of the selection of four specific spectral regions taken in the UV-Vis spectral range corresponding to the typical Q and Soret bands of the phthalocyanine and porphyrin macromolecules and their corresponding blends. The variations in the absorption peaks obtained by the exposure of the single ZnPc and CuP sensing layers to the considered vapours in controlled atmosphere have been analysed and compared with those derived from a thin film obtained by mixing the two metal complexes in an appropriate ratio. The performance of the heterogeneous sensing layer (i.e. ZnPc/CuP blend)-based sensor evaluated in term of response and selectivity is different from that of single homogeneous films
La psichiatria di consultazione e collegamento nell’ospedale generale: l’esperienza perugina
Objective - This study describes the Consultation-Liaison Service of the Perugia University and investigates the significant associations between a many variables of the assessed population. Results - During the time from July 2008 to June 2009, 722 consultations were performed at the general hospital in Perugia. First examinations were 605. Most consultations involved European patients (95,2%) of female gender (56.3%); mean age was 55.77 (SD ± 21.27). Emergencies were 22.5%; one fifth of patients were not informed of having been referred to our service and half of interventions were requested by departments of internal medicine. The primary reasons for the referral were depression (18.6%), unexplained physical symptoms (12.3%) and anxiety (10.4%); most patients were already taking psychotropic medication before our intervention (58.8%).The significant associations are the following: associations between gender and social status (p < 0.01), social condition (p < 0.01), work (p < 0.01) and advice about the need of the consultation (p < 0.05). The area (medical, surgical and specialized area) are related with the advice (p < 0.05), the reason (p < 0.01) and the type of the consultation (p < 0.01), the diagnostic explanations (p < 0.01), the liaison investigations (p < 0.01) and, at last, with the longrange plan after discharge (p < 0.01)
Characterization and Performance of PADME's Cherenkov-Based Small-Angle Calorimeter
The PADME experiment, at the Laboratori Nazionali di Frascati (LNF), in
Italy, will search for invisible decays of the hypothetical dark photon via the
process , where the escapes detection. The
dark photon mass range sensitivity in a first phase will be 1 to 24 MeV. We
report here on measurement and simulation studies of the performance of the
Small-Angle Calorimeter, a component of PADME's detector dedicated to rejecting
2- and 3-gamma backgrounds. The crucial requirement is a timing resolution of
less than 200 ps, which is satisfied by the choice of PbF crystals and the
newly released Hamamatsu R13478UV photomultiplier tubes (PMTs). We find a
timing resolution of 81 ps (with double-peak separation resolution of 1.8 ns)
and a single-crystal energy resolution of 5.7%/ with light yield of
2.07 photo-electrons per MeV, using 100 to 400 MeV electrons at the Beam Test
Facility of LNF. We also propose the investigation of a two-PMT solution
coupled to a single PbF crystal for higher-energy applications, which has
potentially attractive features.Comment: 12 pages, 19 figures. v2: added section on radiation damage studie
Impact of pro-domain stability of matrix metalloproteinase-8 on the outcome of sepsis
Citation:
Berx, B., M. Dickey-Collas, M.D. Skogen, Y.-H. De Roeck, H. Klein, R. Barciela, R.M. Forster, E. Dombrowsky, M. Huret, M. Payne, Y. Sagarminaga, and C. Schrum. 2011. Does operational oceanography address the needs of fisheries and applied environmental scientists? Oceanography 24(1):166–171, doi:10.5670/oceanog.2011.14.Although many oceanographic data products are now considered
operational, continued dialogue between data producers and their user communities is still needed. The fisheries and environmental science communities have often been criticized for their lack of multidisciplinarity, and it is not clear whether recent developments in operational oceanographic products are addressing these needs. The International Council for the Exploration of the Sea (ICES) Working Group on Operational Oceanographic products for Fisheries and Environment (WGOOFE) identified a potential mismatch between user requirements and the perception of
requirements by the providers. Through a questionnaire (98 respondents), WGOOFE identified some of these issues. Although products of physical variables were in higher demand, several biological parameters scored in the top 10 rankings. Users placed
specific focus on historic time series products with monthly or annual resolution and updating on similar time scales. A significant percentage requested access to numerical data rather than graphical output. While the outcomes of this survey challenge our views of operational oceanography, several initiatives are already attempting to close the gap between user requirements and products available
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