New Life Leads to Linfield

One cold March morning, 6-year-old Viktoria Putintsev ‘05 left life as she knew it behind

Hand tool bends component leads accurately

Hand-operated die set bends, without damage, electrical component leads to perfectly match holes in printed circuit board. This tool speeds up printed circuit fabrication and reduces the number of component rejections

SELF AWARENESSTHAT LEADS TOEDNA PONTELLIER’S EGOISTIC SUICIDE IN KATE CHOPIN’S THE AWAKENING NOVEL

Ada beberapa faktor yang menyebabkan seseorang berakhir dengan keputusan untuk bunuh diri. Novel The Awakening karya Kate Chopin bercerita tentang Edna Pontellier, istri dari seorang Creole yang hidup tertekan karena suaminya dan standar sosial Creole hingga ia kehilangan jati dirinya.Penulis menggunakan metode studi pustaka guna mencari data data relevan yang berkaitan dengan topik yang dibahas. Penulis menggunakan pendekatan eksponensial untuk menjelaskan unsur intrinsik novel tersebut untuk memberikan informasi yang jelas tentang karakter, setting, dan konflik yang ada didalam novel. Pendekatan psikologi sosial digunakan untuk memahami seberapa besar dampak lingkungan sekitar terhadap cara berpikir dan bertindak suatu individu. Penulis menemukan korelasi antara cara Edna berpikir dan bertindak dengan standar sosial Creole saat itu. Sedangkan untuk menganalisis proses kesadaran diri tokoh Edna Pontellier, penulis menggunakan teori self awareness guna mengkaji proses kesadaran diri yang dilalui Edna satu per satu. Penulis juga menggunakan teori suicide oleh Emile Durkheim untuk menganalisis aksi bunuh diri yang Edna lakukan di akhir cerita novel. Penulis kemudian mengkategorikan aksi bunuh diri tersebut kedalam tipe egoistic suicide sesuai dengan faktor-faktor penyebabnya

Heat Current Characteristics in Nanojunctions with Superconducting Leads

As a fundamental requisite for thermotronics, controlling heat flow has been a longstanding quest in solid state physics. Recently, there has been a lot of interest in nanoscale hybrid systems as possible candidates for thermal devices. In this context, we study the heat current in the simplest hybrid device of a two level system weakly coupled to two heat baths. We use the reduced density matrix approach together with a simple Born-Markov approximation to calculate the heat current in the steady state. We consider different kinds of reservoirs and show that the nature of the reservoir plays a very important role in determining the thermal characteristics of the device. In particular, we investigate the effectiveness of a conventional superconductor as a reservoir with regard to manipulating the heat current. In the emergent temperature characteristics, we find that superconductivity in the reservoirs leads to enhanced thermal currents and that the superconducting phase transition is clearly visible in the heat current. We observe negative differential thermal conductance and a pronounced rectification of the heat current, making this a good building block for a quantum thermal diode.Comment: 10 pages, 6 figures, submitted to Physical Review

Random fluctuation leads to forbidden escape of particles

A great number of physical processes are described within the context of Hamiltonian scattering. Previous studies have rather been focused on trajectories starting outside invariant structures, since the ones starting inside are expected to stay trapped there forever. This is true though only for the deterministic case. We show however that, under finitely small random fluctuations of the field, trajectories starting inside Arnold-Kolmogorov-Moser (KAM) islands escape within finite time. The non-hyperbolic dynamics gains then hyperbolic characteristics due to the effect of the random perturbed field. As a consequence, trajectories which are started inside KAM curves escape with hyperbolic-like time decay distribution, and the fractal dimension of a set of particles that remain in the scattering region approaches that for hyperbolic systems. We show a universal quadratic power law relating the exponential decay to the amplitude of noise. We present a random walk model to relate this distribution to the amplitude of noise, and investigate this phenomena with a numerical study applying random maps.Comment: 6 pages, 6 figures - Up to date with corrections suggested by referee