425 research outputs found
Interactive Visualization of XML
Práca sa zaoberá problematikou vizualizácie XML dokumentov. Cieľom bolo získanie informácii z oblasti XML dokumentov, spoznať ich štruktúru, jazyky pre ich popis a nakoniec vytvorenie funkčnej aplikácie na ich vizualizáciu. V práci sa ďalej nachádza stručný popis programovacieho jazyka Java, je poukázané na jeho výhody a vhodnosť použitia pre programovanie aplikácii pracujúcich s XML. Sú vysvetlené dôvody vizualizácie XML a obsahuje prehľad existujúcich aplikácii s ich stručným popisom. Následne je v práci spracovaný návrh aplikácie pre vizualizáciu XML a popis jej implementácie. Výsledkom práce je vytvorená aplikácia XMLvisualizer naprogramovaná v jazyku Java.This work deals with the problem of visualization of the XML documents. The goal of it was to receive information about XML documents, to become a knowledge of their structure, to know the languages for their description and finally, to create functional application for visualization. This work contains a short description of the programming language Java, it points out to their advantages and the availability of use in programming application which works with XML documents. The reasons of XML visualization are given in this work, which includes brief descriptions of existing applications for visualization, too. Thereafter the scheme of the application and description of its implementation is worked out in it. The result of this work is an application called XMLvisualizer created in Java programming language.
Bad pixel modified interpolation for astronomical images
We present a new method of interpolation for the pixel brightness estimation
in astronomical images. Our new method is simple and easily implementable. We
show the comparison of this method with the widely used linear interpolation
and other interpolation algorithms using one thousand astronomical images
obtained from the Sloan Digital Sky Survey. The comparison shows that our
method improves bad pixels brightness estimation with four times lower mean
error than the presently most popular linear interpolation and has a better
performance than any other examined method. The presented idea is flexible and
can be also applied to presently used and future interpolation methods. The
proposed method is especially useful for large sky surveys image reduction but
can be also applied to single image correction.Comment: 16 pages, 10 figures. Printed in PASP, September 201
The Effects of Water Stress and Apical Auxin Receptor Coverage on Phototropism in Arabidopsis thaliana
Arabidopsis thaliana was first grown in the environmental chamber. The water tray and soil were kept moist for all plants as seedlings. They were kept in16 hours light and 8 hours of dark condition until they developed 4 true leaves. At this point, watering of one group of plants ceased in order to create a water stressed environment for this group. The other group continued to receive regular watering via hydrobubbles (the watering tray was kept dry). Select individuals’ apical meristems were covered with white out in order to block the auxin receptors (a total of 10 would be examined during the experiment). The two groups were then added to a secluded area where they were provided with blue light positioned on the left side for 16 hours a day. Each day the plants were rotated, the set of plants in front from each treatment (dry and watered) faced the light, during the rotation the two groups closest to the light were moved to the back, the next two being moved forward (as seen below). Every day the water for the regularly watered treatment was checked, hydrobubbles were used water in order to maintain a slow release of water to the plants (shown as the pink spheres in some of the images). The angle of 10 covered and 10 uncovered plants was measured at 3 different dates during the experiment to see the effects of water stress and auxin receptor coverage on phototropism
Gambaran Komunikasi Dalam Keluarga Pada Remaja Mengonsumsi Minuman Alkohol
Penelitian ini bertujuan untuk mengetahui secara mendalam tentang gambaran komunikasi dalam keluarga, faktor-faktor yang mempengaruhi serta dampak-dampak meminum alkohol. Pertanyaan penelitian yang diajukan adalah bagaimana gambaran komunikasi dalam keluarga pada remaja mengonsumsi minuman alkohol, faktor-faktor yang mempengaruhi komunikasi dalam keluarga pada remaja yang mengonsumsi minuman alkohol dan dampak-dampak yang ditimbulkan akibat meminum alkohol. Karakteristik subjek sesuai dengan tujuan penelitian adalah seorang remaja yang berusia 12-21 tahun. Penelitian ini menggunakan pendekatan kuantitatif, yaitu dengan menggunakan metode desckriptive. Pendekatan kuantitatif ini dilakukan untuk mengembangkan pemahaman dalam mengetahui suatu gambaran dibalik peristiwa, dan latar belakang yang terjadi tersebut sedangkan tehnik pengumpulan data yang digunakan dalam penelitian ini adalah metode skala psikologi. Faktor-faktor yang mempengaruhi komunikasi dalam keluarga pada remaja yang mengonsumsi minuman beralkohol antara lain keterbukaan, kejujuran, kepercayaan, mendengarkan, empati, dan sikap suportif.Gambaran komunikasi dalam keluarga merupakan penyesuaian remaja terhadap norma dengan berperilaku sama dengan kelompok teman sebaya disebut konformitas dan besarnya pengaruh lingkungan atau kelompok tersebut sampai pada pemberian norma tingkah laku oleh kelompok. Bagi remaja yang kecenderungan kuat untuk masuk kelompok maka pengaruh pemberian norma oleh kelompok tersebut akan berdampak pada timbulnya konformitas yang kuat. Kondisi demikian akan membuat remaja cenderung untuk lebih menyesuaikan diri dengan norma kelompok agar mendapatkan penerimaan dan menghindari penolaka
Comparison of the accuracy of curve-fitting methods for the determination of gas permeability parameters of sheet polymer samples
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Transport and Distribution of the Short-Lived Halocarbons in the Tropical Tropopause Layer in the Pacific Ocean: the Role of Convection
This PhD thesis investigates the transport and distribution of short-lived halogenated organic
substances in the tropical tropopause layer (TTL) in the Pacific Ocean. Short-lived
halocarbons are one of the major groups of the ozone depleting substances as they provide a
source for the active halogens which decrease ozone in the atmosphere. The TTL serves as
the primary gateway of tropospheric air to enter the stratosphere. The air which enters the
stratosphere is distributed all over the globe. Thus, the research on which tropospheric air
masses go into the TTL, its structure and composition and the transport within is crucial.
This thesis uses the UK Meteorological Office Lagrangian particle dispersion model
NAME to (i) support the flight planning activities and achieve the multi aircraft
coordination in CAST, CONTRAST, ATTREX 2014 campaigns, and (ii) quantify the
amount and distribution of short-lived halocarbons in the TTL, and explain differences in
these vertical distributions and transport characteristics. The halocarbons of interest are
methyl iodide (CH3I), bromoform (CHBr3) and dibromomethane (CH2Br2).
A new NAME procedure was developed and operated successfully to provide routine
simulations and near real-time products suitable for guiding the CAST, CONTRAST and
ATTREX aircraft in order to achieve their mission scientific objectives, and to make
coordinated measurements.
NAME was used post-campaign to analyse distribution of short-lived halocarbons in the
TTL, identify their source regions and transport timescales. A new approach is proposed to
investigate the TTL composition in terms of the boundary layer air influence, and
subsequently quantify CH3I, CHBr3 and CH2Br2 by estimating their boundary layer and
background contribution. The sums of these modelled estimates are in good agreement with
the ATTREX 2014 and 2013 CH3I, CHBr3 and CH2Br2 observations. The quantification of
the contribution of short-lived bromocarbons to the active bromine in the TTL was
achieved, and the results lie within the range of the recent literature studies.
The final focus of this thesis is on how well NAME represents the particle displacement via
convection. Convection is the major transport pathway for the short-lived halocarbons to
reach the TTL. The role of convection in transporting CH3I, CHBr3 and CH2Br2 to the TTL
is assessed using the new convection scheme in NAME. A validation of the performance of
this scheme is provided, showing that it yields improved and more realistic representation
of the particle displacement via convection.Natural Environment Research Counci
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Observations of ozone-poor air in the tropical tropopause layer
Ozonesondes reaching the tropical tropopause layer (TTL) over the west Pacific have occasionally measured layers of very low ozone concentrations - less than 15 ppbv - raising the question of how prevalent such layers are and how they are formed. In this paper, we examine aircraft measurements from the Airborne Tropical Tropopause Experiment (ATTREX), the Coordinated Airborne Studies in the Tropics (CAST) and the Convective Transport of Active Species in the Tropics (CONTRAST) experiment campaigns based in Guam in January-March 2014 for evidence of very low ozone concentrations and their relation to deep convection. The study builds on results from the ozonesonde campaign conducted from Manus Island, Papua New Guinea, as part of CAST, where ozone concentrations as low as 12 ppbv were observed between 100 and 150 hPa downwind of a deep convective complex. TTL measurements from the Global Hawk unmanned aircraft show a marked contrast between the hemispheres, with mean ozone concentrations in profiles in the Southern Hemisphere between 100 and 150 hPa of between 10.7 and 15.2 ppbv. By contrast, the mean ozone concentrations in profiles in the Northern Hemisphere were always above 15.4 ppbv and normally above 20 ppbv at these altitudes. The CAST and CONTRAST aircraft sampled the atmosphere between the surface and 120 hPa, finding very low ozone concentrations only between the surface and 700 hPa; mixing ratios as low as 7 ppbv were regularly measured in the boundary layer, whereas in the free troposphere above 200 hPa concentrations were generally well in excess of 15 ppbv. These results are consistent with uplift of almost-unmixed boundary-layer air to the TTL in deep convection. An interhemispheric difference was found in the TTL ozone concentrations, with values < 15 ppbv measured extensively in the Southern Hemisphere but seldom in the Northern Hemisphere. This is consistent with a similar contrast in the low-level ozone between the two hemispheres found by previous measurement campaigns. Further evidence of a boundary-layer origin for the uplifted air is provided by the anticorrelation between ozone and halogenated hydrocarbons of marine origin observed by the three aircraft
Initiating a Translational Bio-Mathematics Research Seminar for Undergraduate Students
[EN] The aim of this paper is to illustrate the benefits and the drawbacks of an experimental process on how to develop and teach an interdisciplinary applied math course. The analysis comes from our experience gained during the development and teaching of a temporary seminar called: Mathematical Modeling for Cancer Risk Assessment, implemented at our University. The need for the initiation of such an interdisciplinary course came from an increasing national effort started by Mathematical Association of America’s “Curriculum Foundations Project: Voices of the Partner Disciplines”. Their study found that research in biology and health-related fields has become more quantitatively oriented than in the past, therefore mathematical curricula should incorporate interdisciplinary modulation. Our seminar instruction included: writing and mathematical software skills, content lecture, project development and presentation. Results showed that students best interact with each other if work is performed during class time; mainly if a large project with possible variations is developed in class, so students or groups of students follow using the same pace. Implementing such interdisciplinary course that provided students with appropriate tools and methodologies, contributed to student retention, and increased students’ enthusiasm towards future research programs, carriers, and graduate schools.http://ocs.editorial.upv.es/index.php/HEAD/HEAD18Turian, E.; Filus, L. (2018). Initiating a Translational Bio-Mathematics Research Seminar for Undergraduate Students. Editorial Universitat Politècnica de València. 1341-1348. https://doi.org/10.4995/HEAD18.2018.8199OCS1341134
Globalization And Religion : Some Aspects of the Globalization and Glocalization of Christianity among the Kakure Kirishitan in Japan
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