Afro-Caribbean Immigrant Faculty Experiences in the American Academy: Voices of an Invisible Black Population

Afro-Caribbean immigrants have been an integral part of the history and shaping of the United States since the early 1900s. This current study explores the experiences of five Afro-Caribbean faculty members at traditionally White institutions of higher education. Despite the historical presence and influence of Afro-Caribbean communities and the efforts within education systems to address the needs of Afro-Caribbean constituents, Afro-Caribbean faculty members continue to be rendered indiscernible in higher education and to be frequently and erroneously perceived as African–Americans. The study examines the lived experiences of these individuals in the hegemonic White spaces they occupy at their institutions with both White and Black populations. Through their narratives, issues of stereotyping, microaggression, and isolation are addressed. The participants also offer solutions to address these issues by university administrators, department heads, faculty development professionals, diversity officers, policy makers, and other stakeholders. The voices in this study shed light on an overlooked, misunderstood, and under-researched population within our faculty ranks in the American Academy

Dynamics of open quantum systems initially entangled with environment: Beyond the Kraus representation

We present a general analysis of the role of initial correlations between the open system and an environment on quantum dynamics of the open system.Comment: 5 revtex pages, no figures, accepted for publication in Phys. Rev.

Relativistic quantum plasma dispersion functions

Relativistic quantum plasma dispersion functions are defined and the longitudinal and transverse response functions for an electron (plus positron) gas are written in terms of them. The dispersion is separated into Landau-damping, pair-creation and dissipationless regimes. Explicit forms are given for the RQPDFs in the cases of a completely degenerate distribution and a nondegenerate thermal (J\"uttner) distribution. Particular emphasis is placed on the relation between dissipation and dispersion, with the dissipation treated in terms of the imaginary parts of RQPDFs. Comparing the dissipation calculated in this way with the existing treatments leads to the identification of errors in the literature, which we correct. We also comment on a controversy as to whether the dispersion curves in a superdense plasma pass through the region where pair creation is allowed.Comment: 16 pages, 1 figur

Implementasi Algoritma Boyer Moore pada Web E-katalog Flora dan Fauna Pulau Jawa Sumatera

Indonesia memiliki kekayaan flora dan fauna serta kehidupan liar lainnya yang mengundang perhatian dan kekaguman berbagai pihak baik di dalam maupun di luar negeri. Tercatat tidak kurang dari 515 spesies mamalia (terbanyak di dunia), 1.519 spesies burung (keempat terbanyak), 270 spesies amfibia (kelima terbanyak), 600 spesies reptilian (ketiga terbanyak), 121 spesies kupu-kupu (terbanyak) dan 20.000 spesies tumbuhan berbunga (ketujuh terbanyak) menghuni habitat-habitat daratan dan lautan di 112 kepulauan, Memiliki 17.058 pulau dan setiap pulau memiliki keanekaragaman flora dan fauna yang tinggi, termasuk tingkat endemis dan keanekaragamannya. Aplikasi pengarsipan (katalog) menggunakan metode Boyer Moore untuk proses pencarian data, algoritma ini memiliki tingkat keakuratan dalam pencocokan string (text) dan pembacaan setiap karakter dari pattern kanan ke kiri. Penelitian ini berupa aplikasi berbasis web yaitu e-katalog yang mengumpulkan informasi flora dan fauna endemik Indonesia, aplikasi memberikan informasi secara akurat berdasarkan wilayah atau propinsi, e-katalog dilengkapi pencarian yang akurat dengan menggunakan algoritma Boyer Moore. Implementasi algoritma Boyer Moore pada e-katalog memberikan kemudahan dalam mencari informasi yang berhubungan dengan flora dan fauna endemik Indonesia secara akurat dan efisien, e-katalog memberikan informasi berdasarkan kategori setiap perwilayah atau propinsi secara akurat

Exact Solution of an Exclusion Model in the Presence of a moving Impurity

We study a recently introduced model which consists of positive and negative particles on a ring. The positive (negative) particles hop clockwise (counter-clockwise) with rate 1 and oppositely charged particles may swap their positions with asymmetric rates q and 1. In this paper we assume that a finite density of positively charged particles $\rho$ and only one negative particle (which plays the role of an impurity) exist on the ring. It turns out that the canonical partition function of this model can be calculated exactly using Matrix Product Ansatz (MPA) formalism. In the limit of infinite system size and infinite number of positive particles, we can also derive exact expressions for the speed of the positive and negative particles which show a second order phase transition at $q_c=2\rho$. The density profile of the positive particles on the ring has a shock structure for $q \leq q_c$ and an exponential behaviour with correlation length $\xi$ for $q \geq q_c$. It will be shown that the mean-field results become exact at q=3 and no phase transition occurs for q>2.Comment: 9 pages,4 EPS figures. To be appear in JP