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1. |
Record Nr. |
UNINA9910449701103321 |
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Autore |
Turner I. M (Ian Mark), <1963-> |
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Titolo |
The ecology of trees in the tropical rain forest / / I.M. Turner [[electronic resource]] |
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Pubbl/distr/stampa |
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Cambridge : , : Cambridge University Press, , 2001 |
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ISBN |
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1-107-12288-0 |
0-521-06374-4 |
1-280-43312-4 |
9786610433124 |
0-511-17378-4 |
0-511-15302-3 |
0-511-32509-6 |
0-511-54220-8 |
0-511-04769-X |
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Descrizione fisica |
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1 online resource (xiv, 298 pages) : digital, PDF file(s) |
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Collana |
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Cambridge tropical biology series |
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Disciplina |
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Soggetti |
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Rain forest plants - Ecophysiology |
Trees - Ecophysiology - Tropics |
Rain forest ecology |
Forests and forestry - Tropics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from publisher's bibliographic system (viewed on 05 Oct 2015). |
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Nota di bibliografia |
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Includes bibliographical references (p. 248-280) and indexes. |
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Nota di contenuto |
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1. Introduction -- 2. The growing tree -- 3. Tree performance -- 4. Reproductive biology -- 5. Seeds and seedlings -- 6. Classificatory systems for tropical trees. |
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Sommario/riassunto |
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Our knowledge of the ecology of tropical rain-forest trees is limited, with detailed information available for perhaps only a few hundred of the many thousand of species that occur. Yet a good understanding of the trees is essential to unravelling the workings of the forest itself. This book aims to summarise contemporary understanding of the ecology of tropical rain-forest trees. The emphasis is on comparative ecology, an approach that can help to identify possible adaptive trends and evolutionary constraints and which may also lead to a workable |
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ecological classification for tree species, conceptually simplifying the rain-forest community and making it more amenable to analysis. |
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2. |
Record Nr. |
UNISA996218290303316 |
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Autore |
Kowalski Robin M |
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Titolo |
Cyber bullying [[electronic resource] ] : bullying in the digital age / / Robin M. Kowalski, Susan P. Limber, and Patricia W. Agatston |
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Pubbl/distr/stampa |
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Malden, MA., : Blackwell Pub., 2008 |
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ISBN |
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1-281-06953-1 |
0-470-76620-4 |
9786611069537 |
1-281-30849-8 |
9786611308490 |
0-470-69417-3 |
0-470-69334-7 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (236 p.) |
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Altri autori (Persone) |
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LimberSue |
AgatstonPatricia W |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references (p. [191]-205) and index. |
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Nota di contenuto |
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Introduction -- Children's experiences with traditional forms of bullying -- What is cyber bullying? -- Current research on cyber bullying -- What parents can do -- What educators can do -- Laws and policies -- Conclusion. |
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Sommario/riassunto |
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Cyber bullying has become more prevalent through the use of e-mail, instant messages, chat rooms, and other digital messaging systems. It brings with it unique challenges. Cyber Bullying provides the most current and essential information on the nature and prevalence of this epidemic, providing educators, parents, psychologists and policy- |
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makers with critical prevention techniques and strategies for effectively addressing electronic bullying.Provides an empirically-based resource with up-to-date information about the nature and prevalence of cyber bullying through the use of ema |
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3. |
Record Nr. |
UNISA996280847503316 |
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Titolo |
IEEE No 269-1966 : IEEE Proposed Method for Measuring Transmission Performance of Telephone Sets / / IEEE |
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Pubbl/distr/stampa |
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Piscataway, NJ : , : IEEE, , 1966 |
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ISBN |
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Descrizione fisica |
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1 online resource (24 pages) |
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Collana |
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Disciplina |
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Soggetti |
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Telephone - Equipment and supplies |
Sound - Transmission - Measurement |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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The purpose of this Standard is to describe a practical and reproducible method for measuring the transmission characteristics of a telephone set, and the components thereof, by means of objective measurements in a test connection. Performance characteristics obtained using this method will approximate but will not duplicate performance under actual use conditions. The method requires a suitable Artificial Mouth. It also specifies a standard Artificial Ear, standard circuits comprising direct-current power feed and connecting loops, and a standard pressure microphone. This Standard is intended for use in measuring the transmission characteristic over the frequency range most useful for speech, e.g. 150 to 5000 hertz. It is to be used for single-frequency measurements and for measurements with continuously varying frequencies such as slow sweeps and warble bands. It is suitable also for measuring the transmission performance of conventional telephone sets equipped with handsets using carbon transmitters and used with 2-wire circuits. It is not intended to be applicable to special devices |
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such as noise-exclusion transmitters, distant-talking transmitters, insert-type receivers, or noise-exclusion receivers equipped with large ear pads. This Standard is based on a standard pressure microphone to measure the sound field produced by the Artificial Mouth and to measure the pressure developed in the Artificial Ear. Drawings and test procedures as well as other pertinent information have been included as an aid to designers in setting up the tests.performance. |
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