379 research outputs found

    Efektivitas Pelatihan Asertivitas untuk Meningkatkan Self Esteem Remaja yang Mengalami Kekerasan dalam Hubungan Pacaran pada Siswi SMA Global Prima Medan

    Get PDF
    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

    DEM simulation of dense granular flows in a vane shear cell: Kinematics and rheological laws

    Get PDF
    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

    Full text link
    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

    Get PDF
    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 Economía 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 Müller 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

    Get PDF
    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
    • …
    corecore