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4 produkter
E-bok
Engelska, 20021 442 kr
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Applied psychology is the important branch of psychology i.e. the scientific study of all forms of human and animal behaviour. Applied Psychology must start out with description and classification of facts. Facts once classified and described are then subjected to theoretical analysis and further experiment, and this tends to become explanatory and to be able to make predictions about future facts, This work, in five volumes, consists of sixty chapters, thus covering all the relevant fields of applied psychology. To make the information more coherent, the material is gathered from different authoritative sources. The encyclopaedic information, gathered herein will prove of utmost use to students, teachers and researchers in the domain of psychology. The professionals i.e. practicing psychologists will find this work of dependable reference value.
E-bok
Engelska, 20144 450 kr
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Plant biotechnology is a discipline that should be well known and accepted as a sub field under the umbrella of pharmaceutical biotechnology. Plant biotechnology is an extension of this traditional plant breeding with one very important difference — plant biotechnology allows for the transfer of a greater variety of genetic information in a more precise, controlled manner. Traditional plant breeding involves the crossing of hundreds or thousands of genes, whereas plant biotechnology allows for the transfer of only one or a few desirable genes. This more precise Science allows plant breeders to develop crops with specific beneficial traits and without undesirable traits. The constant aim of plant breeding is to improve the quality, diversity and performance of agricultural and horticultural crops. The overriding objective is to develop plants better adapted to human needs. The evolution of plant breeding is a classic example of how improved biological understanding has been adapted to provide more effective methods of meeting the demands of a changing world. This book provides an authoritative review of many aspects of current interest and progress in the field of plant biotechnology that has been made in the recent past.
E-bok
Engelska, 20081 854 kr
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Today''s plant lovers, food producers and agricultural planners, voices together to protect the plants from insects and diseases. Damages to the plants by insects are easily felt, but not realised fully. Every year, hundreds of people die of hunger. We can provide them with enough, food, if food crops are kept safe. Plant Protection continues to play a significant role in achieving targets of crop production. Major thrust areas of plant protection are promotion of integrated pest management, ensuring availability of safe and quality pesticides for sustaining crop production. It is essential to have the basic knowledge about the plant pathogens, different kinds of diseases caused by them to various crops and of course, the methods of controlling diseases to avoid enormous losses. This book is a serious endeavour in this direction. This Encyclopaedia in four volumes takes the stock of present state of art in plant protection. It caters to the need of knowledge hungry biologists, agriculturists, policy planners and specialists in the field of plant protection and of course the students, teachers and researchers.
E-bok
Engelska, 20022 225 kr
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Phylum Arthropoda (Gr. arthros = joint; pods = foot) contains the great majority of the known animals, about one million species, and many of them are enormously abundant as individuals. It includes such common and well-known forms as the crabs, shrimps, insects, spiders, scorpions, ticks, centipedes, as well as a host of other less familiar forms. The Crustacea, Arachnida and Insecta are kept under an independent group, the Arthropoda. Arthropoda are triploblastic, bilaterally symmetrical, metamerically segmented animals. Body segments usually bear paired lateral and jointed appendages. Digestive system complete; mouthparts adapted for various modes of feeding. Circulatory system open with a dorsal heart, arteries and blood sinuses. Respiration by general body surface, gills, tracheae or book-lungs. Excretory organs are green glands or Malpighian tubules. Xervous system with a dorsal nerve ring and a double ventral nerve cord. Sexes are general separate and sexual dimorphism is often exhibited by several forms. Fertilization is internal. Development is usually indirect through larval stages. This work in three volumes contains encyclopaedic information on the phylum Arthropoda. The entire information is presented scientifically. Profusely illustrated the authoritative information gathered herein will prove of utmost use to students, teachers ar.d researchers in the field concerned