Psychology. 5th edition

A comprehensive, lively and engaging introduction to the fascinating study of the subject. The fifth edition of the best-selling Psychology is a contemporary text that will captivate all psychology students. The authors describe and explore every major area of psychology and present the latest findings, along with clear evaluation of controversial theories and models, to give a rigorous and critical grounding in the subject. Over 420 new references in this thoroughly updated fifth edition ‘Conceptual and historical issues in psychology’ highlight alternative perspectives and debates ‘Cutting edge’ introduces contemporary, exciting and important research ‘Psychology in Action’ applies the theories and principles to the world of psychology ‘Controversies in Psychological science’ explores current debates and issues within the field ‘International perspectives’ provides a cross-cultural review and presents topics in a global context. Vibrantly illustrated throughout with examples and photos from across the world, this is a must-read text for students of psychology, and will be an invaluable resource for those just beginning as well as those wishing to discover more. Psychology is available with access to MyPsychLab, which gives you an unrivalled suite of online resources

Monolithic Arrays of Grating-Surface-Emitting Diode Lasers and Quantum Well Modulators for Optical Communications

The electro-optic switching properties of injection-coupled coherent 2-D grating-surface-emitting laser arrays with multiple gain sections and quantum well active layers are discussed and demonstrated. Within such an array of injection-coupled grating-surface-emitting lasers, a single gain section can be operated as intra-cavity saturable loss element that can modulate the output of the entire array. Experimental results demonstrate efficient sub-nanosecond switching of high power grading-surface-emitting laser arrays by using only one gain section as an intra-cavity loss modulator

Quantum Monte Carlo Calculations of A≤6A\leq6 Nuclei

The energies of $^{3}H$, $^{3}He$, and $^{4}He$ ground states, the ${\frac{3}{2}}^{-}$ and ${\frac{1}{2}}^{-}$ scattering states of $^{5}He$, the ground states of $^{6}He$, $^{6}Li$, and $^{6}Be$ and the $3^{+}$ and $0^{+}$ excited states of $^{6}Li$ have been accurately calculated with the Green's function Monte Carlo method using realistic models of two- and three-nucleon interactions. The splitting of the $A=3$ isospin $T=\frac{1}{2}$ and $A=6$ isospin $T=1$, $J^{\pi} = 0^{+}$ multiplets is also studied. The observed energies and radii are generally well reproduced, however, some definite differences between theory and experiment can be identified.Comment: 12 pages, 1 figur

Probiotics for Broilers, Turkeys and Laying Hens (III)

Probiotics have been one of the latest types of feed additives to be of interest to poultry producers. They are designed to improve the birds\u27 performance by effecting a more favorable microflora in the intestinal tract. There have been numerous reports of improved rates of gain and feed utilization with broilers and turkeys and improved production and feed conversion with laying hens. Work of this type has been reported from the University of Florida, Texas A and M University and the University of Arizona

Effects Of Cellulase Supplementation And Wheat Bran On Mineral Utilization In Broilers

In this experiment, 3-week-oId broiler type chicks were assigned to 24 groups of 10 chicks each for two replicates of 12 treatments. A completely randomized experiment with a 4 x 2 factorial arrangement involved feeding 0, 10 or 20% wheat bran or 20% wheat bran plus cellulase. The birds were housed in electrically heated batteries with raised wire floors. Feed and water were supplied ad libitum. The wheat bran was defatted and the cellulase (imported from Boerhinger, Mannheim, Gmn H. W. Germany) was mixed at .008% in the total diet. The enzyme supplementation to the diet was as a dry preparation

Some Effects Of Enzyme Supplementation And Various Wheat Bran Levels In A Broiler Diet On Apparent Digestibility

It is generally recognized that birds do not have an enzyme in their digestive fluid which digests cellulose. However, cellulosic materials are major renewable resources available in large quantities which need to be properly utilized to help meet our needs for energy, chemicals, food and feed for a long-range solution. A variety of lignocellulosic materials containing acid-detergent fibers, are available and microorganisms capable of degrading either one or more of the three main constituents, viz., cellulose, hemicelluose and lignin, have been studied. A further variety of strategies are being explored, including thermal methods of degradation such as pyrolysis or biological methods such as enzymatic hydrolysis and fermentation

Tensile properties of yttrium-titanium and yttrium-zirconium alloys

Complete series of yttrium-titanium and yttrium-zirconium alloys were tested in tension at room temperature, and ultimate tensile strength, yield strength and reduction in area data are reported for these alloys. Yield point phenomena were encountered in both of these alloy systems

Classification cards applied to team and individual learning.

Thesis (Ed.M.)--Boston Universit

Fermi momentum resolved charge order for spin disordered stripes

For a doped antiferromagnet with short-range spin stripe correlations and long-range charge stripe order we find that the manifestation of charge order changes abruptly as a function of momentum along the Fermi surface. The disorder averaged local density of states is almost perfectly homogeneous when integrated only over states which contribute to the ``nodal'' spectral weight whereas it displays long range charge stripe order when integrated only over states which contribute to the ``antinodal'' spectral weight. An effectively two dimensional nodal liquid can thus coexist with static charge stripes provided there is no static spin order. We also study commensurate spin and charge stripe ordered systems where the Fermi surface consists of a nodal hole pocket and an open ``stripe band'' section. Due to the stripe order the relation between hole density and size of a pocket will be reduced compared to a paramagnet by a factor of two for even charge period and four for odd charge period and we find an estimated upper limit on the area fraction of a hole pocket of 1.6% for charge period four and 4% for charge period five. We also discuss why electron pockets are not expected for a stripe ordered system and show that the open Fermi surface section may be electron like with a negative Hall coefficient.Comment: 9 pages, 5 figures, added references and extended discussion of Hall coefficient for stripe ordered system; v3 final, improved figure