556 research outputs found
Aplikasi Administrasi Rekam Medis di Klinik Pelayanan Kesehatan GPIB PAULUS MENTENG dengan Menggunakan Visual Basic 6.0
Saat ini perkembangan ilmu komputer sangat pesat, penerapannya sudah meluasdiseluruh tanah air Indonesia.Hal ini disebabkan kecepatan dan kelengkapandalam pengolahan data, ketelitian dan proses pengolahan data memegangperanan yang sangat penting Maka dengan ini penulis mencoba untukmembahas tentang system komputerisasi yang berhubungan dengan rekammedispada Klinik Pelayanan Kesehatan GPIB PAULUS MENTENG. Kegiatanpencatatan rekammedis ini dapat dilihat dari penginputan data pasien,penginputan data dokter, penginputan rekammedis pasien, pencarian data pasiensampai dengan pencetakan laporan data dokter dan data pasien denganmengunakan Microsoft Visual Basic 6.0
Applications in Clinical Administration Medical Record Service Health GPIB PAULUS MENTENG Using Visual Basic 6.0
Currently a very rapid development of computer science, the application is already widespread across the homeland Indonesia.Hal due speed and completeness in data processing, accuracy and data processing plays a very important. So with this the author tries to discuss about the system related computerized rekammedis on Health Services Clinic GPIB PULUS MENTENG. Rekammedis recording activity can be seen from the input data of patients, inputting data doctor, inputting rekammedis patients, patient data searches to with the printing of data report the doctor and patient data using Microsoft Visual Basic 6.0
Contaminant Effects on Chesapeake Bay Finfishes
Habitat deterioration is consistent with perceived population declines for several resident and anadromous finfish species in Chesapeake Bay that are subjected to different levels of fishing pressure (e.g., striped bass versus blueback herring). Diminution of habitat quality has natural and anthropogenic roots that are difficult to separate. Recent contaminant effects studies focused on Chesapeake Bay fishes can be grouped as follows: (a) mathematical and statistical modeling studies aimed at elucidating contaminant and stock trend relationships using extant data and theoretical insights, (b) biological and chemical field surveys in selected areas to demonstrate spatio-temporal associations between levels of toxic organic and inorganic chemicals and absence or reduction of sensitive species, (c) measurements of condition factors and tissue residues of chemical contaminants in juvenile and older fishes, (d) laboratory studies of life stage and species sensitivities to an array of toxic contaminants, and ( e) in-situ field studies designed to measure the effects of habitat quality on specific life stages of selected species.https://scholarworks.wm.edu/vimsbooks/1057/thumbnail.jp
Enhanced Lipid Diffusion and Mixing in Accelerated Molecular Dynamics
Accelerated molecular dynamics (aMD) is an enhanced sampling technique that expedites conformational space sampling by reducing the barriers separating various low-energy states of a system. Here, we present the first application of the aMD method on lipid membranes. Altogether, ∼1.5 μs simulations were performed on three systems: a pure POPC bilayer, a pure DMPC bilayer, and a mixed POPC:DMPC bilayer. Overall, the aMD simulations are found to produce significant speedup in trans–gauche isomerization and lipid lateral diffusion versus those in conventional MD (cMD) simulations. Further comparison of a 70-ns aMD run and a 300-ns cMD run of the mixed POPC:DMPC bilayer shows that the two simulations yield similar lipid mixing behaviors, with aMD generating a 2–3-fold speedup compared to cMD. Our results demonstrate that the aMD method is an efficient approach for the study of bilayer structural and dynamic properties. On the basis of simulations of the three bilayer systems, we also discuss the impact of aMD parameters on various lipid properties, which can be used as a guideline for future aMD simulations of membrane systems
Performance of ab initio and density functional methods for conformational equilibria of CnH2n+2 alkane isomers (n=2-8)
Conformational energies of n-butane, n-pentane, and n-hexane have been
calculated at the CCSD(T) level and at or near the basis set limit.
Post-CCSD(T) contribution were considered and found to be unimportant. The data
thus obtained were used to assess the performance of a variety of density
functional methods. Double-hybrid functionals like B2GP-PLYP and B2K-PLYP,
especially with a small Grimme-type empirical dispersion correction, are
capable of rendering conformational energies of CCSD(T) quality. These were
then used as a `secondary standard' for a larger sample of alkanes, including
isopentane and the branched hexanes as well as key isomers of heptane and
octane. Popular DFT functionals like B3LYP, B3PW91, BLYP, PBE, and PBE0 tend to
overestimate conformer energies without dispersion correction, while the M06
family severely underestimates GG interaction energies. Grimme-type dispersion
corrections for these overcorrect and lead to qualitatively wrong conformer
orderings. All of these functionals also exhibit deficiencies in the conformer
geometries, particularly the backbone torsion angles. The PW6B95 and, to a
lesser extent, BMK functionals are relatively free of these deficiencies.
Performance of these methods is further investigated to derive conformer
ensemble corrections to the enthalpy function, , and the Gibbs
energy function, , of these alkanes. While
is only moderately sensitive to the level of theory, exhibits more pronounced sensitivity. Once again, double hybrids
acquit themselves very well.Comment: J. Phys. Chem. A, revised [Walter Thiel festschrift
Analysis of core samples from the BPXA-DOE-USGS Mount Elbert gas hydrate stratigraphic test well : insights into core disturbance and handling
Author Posting. © The Author(s), 2009. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Marine and Petroleum Geology 28 (2011): 381-393, doi:10.1016/j.marpetgeo.2009.10.009.Collecting and preserving undamaged core samples containing gas hydrates from depth is difficult because of the pressure and temperature changes encountered upon retrieval. Hydrate-bearing core samples were collected at the BPXA-DOE-USGS Mount Elbert Gas Hydrate Stratigraphic Test Well in February 2007. Coring was performed while using a custom oil-based drilling mud, and the cores were retrieved by a wireline. The samples were characterized and subsampled at the surface under ambient winter arctic conditions. Samples thought to be hydrate bearing were preserved either by immersion in liquid nitrogen (LN), or by storage under methane pressure at ambient arctic conditions, and later depressurized and immersed in LN. Eleven core samples from hydrate-bearing zones were scanned using x-ray computed tomography to examine core structure and homogeneity. Features observed include radial fractures, spalling-type fractures, and reduced density near the periphery. These features were induced during sample collection, handling, and preservation. Isotopic analysis of the methane from hydrate in an initially LN-preserved core and a pressure-preserved core indicate that secondary hydrate formation occurred throughout the pressurized core, whereas none occurred in the LN-preserved core, however no hydrate was found near the periphery of the LN-preserved core. To replicate some aspects of the preservation methods, natural and laboratory-made saturated porous media samples were frozen in a variety of ways, with radial fractures observed in some LN-frozen sands, and needle-like ice crystals forming in slowly frozen clay-rich sediments. Suggestions for hydrate-bearing core preservation are presented.A portion of this work was
supported by the Assistant Secretary for Fossil Energy, Office of Natural Gas and
Petroleum Technology, through the National Energy Technology Laboratory, under the
U.S. DOE Contract No. DE- AC02-05CH11231
Promover a fluência em leitura: um estudo com alunos do 2º ano de escolaridade
Neste artigo são analisados os resultados de um Programa de Promoção da
Fluência em Leitura (PPFL), implementado junto de 74 alunos do 2º ano
de escolaridade de um Agrupamento Escolar do norte de Portugal. O PPFL
é constituÃdo por 22 sequências didáticas, elaboradas a partir de 22 textos
(9 narrativos, 4 informativos e 9 poemas). Cada sequência foi operacionalizada
em sessões de 10 a 15 minutos, durante 22 semanas, em ciclos
de cinco dias (quinta-feira a quarta-feira). Em cada semana foi trabalhado
apenas uma sequência didáctica (i.e. um texto). Foi utilizado um design
quase experimental, com grupo experimental e grupo de controlo e com pré
e pós-teste. Os sujeitos foram avaliados através de um teste de fluência de
leitura – o Teste de Fluência em Leitura (TFL) –, considerando as variáveis
velocidade e precisão. Os resultados evidenciam diferenças significativas
a favor do grupo experimental, que superou as diferenças iniciais que se
registavam no pré-teste. A análise qualitativa do impacto do PPFL aponta
para um incremento na motivação para ler, no envolvimento da famÃlia e
para a mudança de práticas por parte dos professores envolvidos.CIEC - Centro de Investigação em Estudos da Criança, IE, UMinho (UI 317 da FCT), PortugalFundos Nacionais através da FCT (Fundação para a Ciência e a Tecnologia) e cofinanciado pelo Fundo Europeu de Desenvolvimento Regional (FEDER) através do COMPETE 2020 – Programa Operacional Competitividade e Internacionalização (POCI) no âmbito do CIEC (Centro de Investigação em Estudos da Criança, da Universidade do Minho) com a referência POCI-01-0145-FEDER-00756
Docking and molecular dynamics simulations of the ternary complex nisin2:lipid II
Lanthionine antibiotics are an important class of naturally-occurring antimicrobial peptides. The best-known, nisin, is a commercial food preservative. However, structural and mechanistic details on nisin/lipid II membrane complexes are currently lacking. Recently, we have developed empirical force-field parameters to model lantibiotics. Docking and molecular dynamics (MD) simulations have been used to study the nisin2:lipid II complex in bacterial membranes, which has been put forward as the building block of nisin/lipid II binary membrane pores. A Ile1Trp mutation of the N-terminus of nisin has been modelled and docked onto lipid II models; the computed binding affinity increased compared to wildtype. Wild-type nisin was also docked onto three different lipid II structures and a stable 2:1 nisin:lipid II complex formed. This complex was inserted into a membrane. Six independent MD simulations revealed key interactions in the complex, specifically the N terminal engagement of nisin with lipid II at the pyrophosphate and C-terminus of the pentapeptide chain. Nisin2 inserts into the membrane and we propose this is the first step in pore formation, mediated by the nisin N-terminus–lipid II pentapeptide hydrogen bond. The lipid II undecaprenyl chain adopted different conformations in the presence of nisin, which may also have implications for pore formation
Automated Builder and Database of Protein/Membrane Complexes for Molecular Dynamics Simulations
Molecular dynamics simulations of membrane proteins have provided deeper insights into their functions and interactions with surrounding environments at the atomic level. However, compared to solvation of globular proteins, building a realistic protein/membrane complex is still challenging and requires considerable experience with simulation software. Membrane Builder in the CHARMM-GUI website (http://www.charmm-gui.org) helps users to build such a complex system using a web browser with a graphical user interface. Through a generalized and automated building process including system size determination as well as generation of lipid bilayer, pore water, bulk water, and ions, a realistic membrane system with virtually any kinds and shapes of membrane proteins can be generated in 5 minutes to 2 hours depending on the system size. Default values that were elaborated and tested extensively are given in each step to provide reasonable options and starting points for both non-expert and expert users. The efficacy of Membrane Builder is illustrated by its applications to 12 transmembrane and 3 interfacial membrane proteins, whose fully equilibrated systems with three different types of lipid molecules (DMPC, DPPC, and POPC) and two types of system shapes (rectangular and hexagonal) are freely available on the CHARMM-GUI website. One of the most significant advantages of using the web environment is that, if a problem is found, users can go back and re-generate the whole system again before quitting the browser. Therefore, Membrane Builder provides the intuitive and easy way to build and simulate the biologically important membrane system
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