springer jun 1983 (3 Ergebnisse)

Buch. Zustand: Neu. Neuware - 'A lake is the landscape's most beautiful and expressive feature. It is earth's eye; looking into which the beholder measures the depth of his own nature. The fluviatile trees next the shore are the slender eyelashes which fringe it, and the wooded hills and cliffs around are its overhanging brows.' 'A field of water betrays the spirit that is in the air. It is continually receiving new life and motion from above.' 'Nothing so fair, so pure, and at the same time so large, as a lake, perchance, lies on the surface ofthe earth. Sky water. It needs no fence. Nations come and go without defiling it. It is a mirror which no stone can crack, whose quicksilver will never wear off, whose gilding Nature continually repairs; no storms, no dust, can dim its surface ever fresh; - a mirror in which all impurity presented to its sinks, swept and dusted by the sun's hazy brush, - this the light dust-cloth, - which retains no breath that is breathed on it, but sends its own to float as clouds high above its surface, and be reflected in its bosom still.' (Henry David Thoreau: 'Walden; or Life in the Woods'. Fourth printing, April 1953, Ri!lehart & Company, New York).

Buch. Zustand: Neu. Neuware - A historical and transcultural view of adolescence.- Concepts of adolescence; their applicability to normal and clinical samples.- Psychological changes in adolescence related to physical changes.- The psychobiology of developmental behavior disorders.- Influence of early exposure to steroid hormones on behavioral development.- The effects of a chronic illness on somatic growth and psychological development.- Adolescents and family disruption through marital separation.- Erotic overtures and sexual contacts; competence, rules, attitudes and problems.- Sex roles and coping with emotions.- Outpatient social skills training for youth in trouble; theoretical background, practice and outcome.- The implementation and evaluation of a residential social skills training program for youth in trouble.- Suicidal behaviour among adolescents.- How are we to deal with adolescents and their problems .- Epidemiology and the role of public health organizations.

Buch. Zustand: Neu. Neuware - Researching the potential of forest tree mycorrhizae.- Fine roots and sheathing mycorrhizas: their formation, function and dynamics.- The growth, activity and distribution of the fruit tree root system.- Root development and configuration in intensively managed radiata pine plantations.- Effects of N fertilisation on populations of fine roots and mycorrhizas in spruce humus.- Seasonal variation of growth and development of the roots of five second-year conifer species in the nursery.- Root distribution of four Vitis cultivars.- Root turnover and productivity of coniferous forests.- The distribution and productivity of fine roots in boreal forests.- Root development and plantation establishment success.- Root growth capacity: relationship with field root growth and performance in outplanted jack pine and black spruce.- Effect of restricted watering and its combination with root pruning on root growth capacity, water status and foot reserves of Pinus caribaea var. hondurensis seedlings.- Morphogenesis of root systems of seedlings and cuttings of Quercus robur L.- Some aspects of the development of the endodermis and cortex of Tilia cordata and Picea sitchensis.- When is the structural root system determined in Sitka spruce .- Differences between stem and root thickening at their junction in red pine.- The development of root systems analysed by growth rings.- Root architecture and tree stability.- Modelling root structure and stability.- The physiology of vesicular-arbuscular mycorrhizal roots.- Role of the host-arbuscule interface in the VA mycorrhizal symbiosis: ultracytological studies of processes involved in phosphate and carbohydrate exchange.- Studies of VA mycorrhizae in vitro: mycorrhizal synthesis of axenically propagated wild cherry (Prunus avium L.) plants.-The development of vesicular-arbuscular mycorrhizal infection in plant root systems.- The concept of succession in relation to the spread of sheathing mycorrhizal fungi on inoculated tree seedlings growing in unsterile soils.- Sequences and interactions of mycorrhizal fungi on birch.- Succession of mycorrhizal fungi on birch: infection of seedlings planted around mature trees.- Role of basidiospores as inocula of mycorrhizal fungi of birch.- Methods for synthesizing ectomycorrhizas and their effect on mycorrhizal development.- Apical meristems in mycorrhizal and uninfected roots of Calluna vulgaris (L.) Hull.- Responses of pine roots to E-strain ectendomycorrhizal fungi.- Role of Laccaria laccata in protecting primary roots of Douglas-fir from root rot.- First results of research on the competitivity of ectomycorrhizal fungi.- Ecto- and endomycorrhizal fungus associations with Quercus imbricaria L.- Effect of mycorrhizal inocula on the growth of Sitka spruce seedlings in different soils.- Changes in the mycorrhizal status of Sitka spruce following outplanting.- Inoculation of pines in a nursery with Pisolithus tinctorius and Thelephora terrestris in Korea.- The influence of mixed inocula on endomycorrhizal development.- Growth and survival of container-grown Pinus caribaea infected with various ectomycorrhizal fungi.- Influence of ectomycorrhizae on infectivity of Pythium-infested soils and substrates.- Effect of pesticides on ectomycorrhizae of Pinus sylvestris seedlings.- Mycorrhiza in some desert plant species in Algeria.- Environmental factors determining the distribution of Suillus luteus fructifications in a Pinus radiata grazing-forest plantations.- Nutrient inflows into apple roots.- Phosphorus absorption (32P) by apple trees under drip irrigation as influencedby the physical properties of the soil.- Responses of loblolly pine (mesophyte) and swamp tupelo (hydrophyte) seedlings to soil flooding and phosphorus.- Root surface/leaf area ratios in arctic dwarf shrubs.- Nutrient reserves in roots of fruit trees, in particular carbohydrates and nitrogen.- Nitrogen nutrition, photosynthesis and carbon allocation in ectomycorrhizal pine.- The structure and funct.