379 research outputs found
Efektivitas Pelatihan Asertivitas untuk Meningkatkan Self Esteem Remaja yang Mengalami Kekerasan dalam Hubungan Pacaran pada Siswi SMA Global Prima Medan
Penelitian ini bertujuan untuk melihat apakah pelatihan asertivitas memiliki pengaruh untuk meningkatkan self esteem remajayang mengalami kekerasan dalam hubungan pacaran. Hipotesa dalam penelitian ini ada 2 yaitu; 1) Diperoleh hasil yang berbeda antara pretest dengan posttest setelah diberikan pelatihan asertif pada kelompok eksperimen, dengan asumsi bahwa self esteem akan meningkat setelah diberikan pelatihan dibandingkan sebelum diberikan pelatihan. 2) Ada perbedaan self esteem pada kelompok eksperimen yang telah diberikan pelatihan asertif dengan kelompok kontrol yang tidak diberikan pelatihan, dengan asumsi bahwa self esteem pada kelompok eksperimen akan lebih tinggi daripada self esteem kelompok kontrol. Penelitian dengan Quasi Experimental Design merupakan jenis penelitian yang digunakan dalam penelitian ini. Teknik analisis memakai pengukuran uji non parametrik yaitu teknik analisis Wilcoxon dan Mann-Whitney U. Berdasarkan uji Wilcoxon diperoleh nilai Sig. sebesar 0,001 maka hipotesa pertama diterima sehingga pelatihan asertif mempunyai pengaruh dalam meningkatkan self esteem. Berdasarkan hasil uji Mann Whitney U didapatkan nilai Sig. 0,000 maka hipotesa kedua diterima sehingga disimpulkan terdapat perbedaan self esteem antara kelompok eksperimen yang mendapatkan pelatihan dengan kelompok kontrol yang tidak mendapatkan pelatihan asertif
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Adaptive Composite Map Projections
All major web mapping services use the web Mercator projection. This is a poor choice for maps of the entire globe or areas of the size of continents or larger countries because the Mercator projection shows medium and higher latitudes with extreme areal distortion and provides an erroneous impression of distances and relative areas. The web Mercator projection is also not able to show the entire globe, as polar latitudes cannot be mapped. When selecting an alternative projection for information visualization, rivaling factors have to be taken into account, such as map scale, the geographic area shown, the map’s height-to-width ratio, and the type of cartographic visualization. It is impossible for a single map projection to meet the requirements for all these factors. The proposed composite map projection combines several projections that are recommended in cartographic literature and seamlessly morphs map space as the user changes map scale or the geographic region displayed. The composite projection adapts the map’s geometry to scale, to the map’s height-to-width ratio, and to the central latitude of the displayed area by replacing projections and adjusting their parameters. The composite projection shows the entire globe including poles; it portrays continents or larger countries with less distortion (optionally without areal distortion); and it can morph to the web Mercator projection for maps showing small regions.This is the author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by IEEE-Institute of Electrical and Electronics Engineers and can be found at: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=2945. ©2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.Keywords: Web cartography, Multi-scale map, HTML5 Canvas, Web mapping, Web map projection, Web Mercato
DEM simulation of dense granular flows in a vane shear cell: Kinematics and rheological laws
The rheology of dense granular flows is investigated through discrete element method (DEM)
simulation of a vane shear cell. From the simulation, profiles of shear stress, shear rate, and
velocity are obtained, which demonstrates that the flow features in the vane shear cell are
equivalent to those in the classic annular Couette cell. A novel correlation for the shear
viscosity is formulated and leads to a new expression for ÎĽKT in the kinetic theory analysis.
The ÎĽKT formulation is able to qualitatively capture the ÎĽ-I relation in the shear cell. A
correlation length is added in the energy dissipation term to account for the effects of the
particle motion correlation. A simplified correlation length model is derived based on DEM
results and is compared with the literature. The modified granular kinetic energy equation
is able to correctly predict the granular temperature profiles in the shear cell
Navigating the Ocean of Biases: Political Bias Attribution in Language Models via Causal Structures
The rapid advancement of Large Language Models (LLMs) has sparked intense
debate regarding their ability to perceive and interpret complex
socio-political landscapes. In this study, we undertake an exploration of
decision-making processes and inherent biases within LLMs, exemplified by
ChatGPT, specifically contextualizing our analysis within political debates. We
aim not to critique or validate LLMs' values, but rather to discern how they
interpret and adjudicate "good arguments." By applying Activity Dependency
Networks (ADNs), we extract the LLMs' implicit criteria for such assessments
and illustrate how normative values influence these perceptions. We discuss the
consequences of our findings for human-AI alignment and bias mitigation. Our
code and data at https://github.com/david-jenny/LLM-Political-Study
Exploring the origin of high optical absorption in conjugated polymers
Vezie, Michelle S. et al.The specific optical absorption of an organic semiconductor is critical to the performance of organic optoelectronic devices. For example, higher light-harvesting efficiency can lead to higher photocurrent in solar cells that are limited by sub-optimal electrical transport. Here, we compared over 40 conjugated polymers, and found that many different chemical structures share an apparent maximum in their extinction coefficients. However, a diketopyrrolopyrrole-thienothiophene copolymer shows remarkably high optical absorption at relatively low photon energies. By investigating its backbone structure and conformation with measurements and quantum chemical calculations, we find that the high optical absorption can be explained by the high persistence length of the polymer. Accordingly, we demonstrate high absorption in other polymers with high theoretical persistence length. Visible light harvesting may be enhanced in other conjugated polymers through judicious design of the structure.M.S.V. and S. F. are grateful to the Engineering and Physical Sciences Research Council (EPSRC) for a doctoral training award and a CDT studentship (EP/G037515/1) respectively. G.P. and S.C.H. acknowledge the University of Cyprus for funding through the internal grant "ORGANIC". B.D., A.G. and M.C.Q. acknowledge financial support from the Ministerio de EconomĂa y Competitividad of Spain through projects CSD2010–00044 (Consolider NANOTHERM), SEV-2015_0496 and MAT2012–37776 and the European Research Council through project ERC CoG648901. I.M., R.S.A. and I.McC. acknowledge support from the European Commission FP7 Project ArtESun (604397). J.N. is grateful to the Royal Society for a Wolfson Merit Award, and acknowledges financial support from EPSRC grants EP/K030671/1, EP/K029843/1 and EP/J017361/1. The authors thank Dr. Isabel Alonso for performing supplementary ellipsometric measurements; we thank Prof. Thomas Kirchartz, Dr. Jarvist Moore Frost, Dr. Christian MĂĽller and Dr. Isabel Alonso for helpful discussions.Peer reviewe
Apoptosis induced by the Tibetan herbal remedy PADMA 28 in the T cell-derived lymphocytic leukaemia cell line CEM-C7H2
The Tibetan herbal remedy PADMA 28 revealed promising results to support treatment of atherosclerosis, Charot syndrome (intermittent claudication), chronic active hepatitis and infection of the respiratory tract. The remedy was confirmed to be closely linked with anti- and pro-oxidative properties in vitro. In this study, apoptogenic and survival effects of PADMA 28 were investigated in the T cell-derived lymphocytic leukaemia cell line CEM-C7H2. PADMA 28 led to a concentration-dependent inhibition of cell proliferation accompanied by the accumulation of CEM-C7H2 cells in subG1 phase, fragmentation of poly (ADP-ribose) polymerase (PARP) and nuclear body formation. Treatment with PADMA 28 rescued to some extent cells over-expressing Bcl-2 from apoptosis. This finding suggests that the mechanism of action of PADMA 28 may be via interference with Bcl-2 triggered survival pathways
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A compromise aspect-adaptive cylindrical projection for world maps
There are two problems with current cylindrical projections for world maps. First, existing cylindrical map projections have a static height-to-width aspect ratio and do not automatically adjust their aspect ratio in order to optimally use available canvas space. Second, many of the commonly used cylindrical compromise projections show areas and shapes at higher latitudes with considerable distortion. This article introduces a new compromise cylindrical map projection that adjusts the distribution of parallels to the aspect ratio of a canvas. The goal of designing this projection was to show land masses at central latitudes with a visually balanced appearance similar to how they appear on a globe. The projection was constructed using a visual design procedure where a series of graphically optimized projections was defined for a select number of aspect ratios. The visually designed projections were approximated by polynomial expressions that define a cylindrical projection for any height-to-width ratio between 0.3:1 and 1:1. The resulting equations for converting spherical to Cartesian coordinates require a small number of coefficients and are fast to execute. The presented aspect-adaptive cylindrical projection is well suited for digital maps embedded in web pages with responsive web design, as well as GIS applications where the size of the map canvas is unknown a priori. We highlight the projection with a height-to-width ratio of 0.6:1, which we call the Compact Miller projection because it is inspired by the Miller Cylindrical projection. Unlike the Miller Cylindrical projection, the Compact Miller projection has a smaller height-to-width ratio and shows the world with less areal distortion at higher latitudes. A user study with 448 participants verified that the Compact Miller – together with the Plate Carrée projection – is the most preferred cylindrical compromise projection.Keywords: adaptive composite map projections, Miller projection, Mercator, aspect-adaptive cylindrical projection, Compact Miller projection, Flex Projecto
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