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Author: Geoffrey D. Wood Publisher: Oxford University Press, USA ISBN: Category : History Languages : en Pages : 568
Book Description
The challenge of improving livelihoods in the remote mountains of northern Pakistan provides the backdrop for a series of reflective studies about social and rural development, featuring the analyses of multi-dimensional poverty, gender, microfinance, collective action and institutional options for natural resource management.
Author: Geoffrey D. Wood Publisher: Oxford University Press, USA ISBN: Category : History Languages : en Pages : 568
Book Description
The challenge of improving livelihoods in the remote mountains of northern Pakistan provides the backdrop for a series of reflective studies about social and rural development, featuring the analyses of multi-dimensional poverty, gender, microfinance, collective action and institutional options for natural resource management.
Author: Alexander V. Kolobov Publisher: Springer ISBN: 3319314505 Category : Technology & Engineering Languages : en Pages : 545
Book Description
This book summarizes the current status of theoretical and experimental progress in 2 dimensional graphene-like monolayers and few-layers of transition metal dichalcogenides (TMDCs). Semiconducting monolayer TMDCs, due to the presence of a direct gap, significantly extend the potential of low-dimensional nanomaterials for applications in nanoelectronics and nano-optoelectronics as well as flexible nano-electronics with unprecedented possibilities to control the gap by external stimuli. Strong quantum confinement results in extremely high exciton binding energies which forms an interesting platform for both fundamental studies and device applications. Breaking of spatial inversion symmetry in monolayers results in strong spin-valley coupling potentially leading to their use in valleytronics. Starting with the basic chemistry of transition metals, the reader is introduced to the rich field of transition metal dichalcogenides. After a chapter on three dimensional crystals and a description of top-down and bottom-up fabrication methods of few-layer and single layer structures, the fascinating world of two-dimensional TMDCs structures is presented with their unique atomic, electronic, and magnetic properties. The book covers in detail particular features associated with decreased dimensionality such as stability and phase-transitions in monolayers, the appearance of a direct gap, large binding energy of 2D excitons and trions and their dynamics, Raman scattering associated with decreased dimensionality, extraordinarily strong light-matter interaction, layer-dependent photoluminescence properties, new physics associated with the destruction of the spatial inversion symmetry of the bulk phase, spin-orbit and spin-valley couplings. The book concludes with chapters on engineered heterostructures and device applications such as a monolayer MoS2 transistor. Considering the explosive interest in physics and applications of two-dimensional materials, this book is a valuable source of information for material scientists and engineers working in the field as well as for the graduate students majoring in materials science.
Author: Udo Schickhoff Publisher: Springer Nature ISBN: 3030702383 Category : Science Languages : en Pages : 665
Book Description
This book compiles available knowledge of the response of mountain ecosystems to recent climate and land use change and intends to bridge the gap between science, policy and the community concerned. The chapters present key concepts, major drivers and key processes of mountain response, providing transdisciplinary orientation to mountain studies incorporating experiences of academics, community leaders and policy-makers from developed and less developed countries. The book chapters are arranged in two sections. The first section concerns the response processes of mountain environments to climate change. This section addresses climate change itself (past, current and future changes of temperature and precipitation) and its impacts on the cryosphere, hydrosphere, biosphere, and human-environment systems. The second section focuses on the response processes of mountain environments to land use/land cover change. The case studies address effects of changing agriculture and pastoralism, forest/water resources management and urbanization processes, landscape management, and biodiversity conservation. The book is designed as an interdisciplinary publication which critically evaluates developments in mountains of the world with contributions from both social and natural sciences.
Author: Eveline J. van der Steen Publisher: Peeters Publishers ISBN: 9789042913851 Category : History Languages : en Pages : 354
Book Description
This volume deals with the transition from the Late Bronze to the Early Iron Age in the central East Jordan Valley, the period of the fall of the Egyptian New Kingdom, and of the birth of a new era, in which small kingdoms such as Ammon, Moab and Israel were born. A broad spectrum of sources is being reviewed: written evidence, excavations and surveys, and ethnographic sources from the 19th century and later. New archaeological evidence is being presented, including a report on the excavations of Tell el-Hammeh on the Zerqa. This evidence, written, material and ethnographical, is incorporated in a new model for the LB-IA transition in the region: a model that explains the events of this turbulent period as the precipitation of a tribal society, where the interactions of tribes and territories determined the political lay-out and shaped the kingdoms of the Iron Age.
Author: Edbert Jarvis Sie Publisher: Springer ISBN: 3319695541 Category : Science Languages : en Pages : 142
Book Description
This thesis presents optical methods to split the energy levels of electronic valleys in transition-metal dichalcogenides (TMDs) by means of coherent light-matter interactions. The electronic valleys found in monolayer TMDs such as MoS2, WS2, and WSe2 are among the many novel properties exhibited by semiconductors when thinned down to a few atomic layers, and have have been proposed as a new way to carry information in next generation devices (so-called valleytronics). These valleys are, however, normally locked in the same energy level, which limits their potential use for applications. The author describes experiments performed with a pump-probe technique using transient absorption spectroscopy on MoS2 and WS2. It is demonstrated that hybridizing the electronic valleys with light allows one to optically tune their energy levels in a controllable valley-selective manner. In particular, by using off-resonance circularly polarized light at small detuning, one can tune the energy level of one valley through the optical Stark effect. Also presented within are observations, at larger detuning, of a separate contribution from the so-called Bloch--Siegert effect, a delicate phenomenon that has eluded direct observation in solids. The two effects obey opposite selection rules, enabling one to separate the two effects at two different valleys.
Author: Vladimir Dobrosavljevic Publisher: Oxford University Press ISBN: 0199592594 Category : Science Languages : en Pages : 583
Book Description
When many particles come together how do they organize themselves? And what destroys this organization? Combining experiments and theory, this book describes intriguing quantum phases - metals, superconductors and insulators - and transitions between them. It captures the excitement and the controversies on topics at the forefront of research.
Author: Kenneth Hewitt Publisher: Springer Science & Business Media ISBN: 9401720371 Category : Science Languages : en Pages : 249
Book Description
This volume had its origins in an international symposium organised by the Cold Regions Research Centre, and held at Wilfrid Laurier University in November, 1999. The chapters are modified from a selection of the papers at the meeting, and reflect reviews and revisions in light of discussions then. The original idea for the meeting was to address certain questions that the organisers were encountering in their own work, and that we felt had received limited attention in the recent literature. The two broad issues we wanted to address were: the complex associations of actual landforms and processes in cold regions, and how the almost universal legacies of past, different cold environments of the late Quaternary affect these landscapes in the present. The former involves the problem of identifying landform and sediment complexes, and the interrelations of relevant processes. We sought to identify this in terms oflandform and sediment assemblages appropriate to regional and field-oriented concerns.
Author: Takayuki Fueno Publisher: CRC Press ISBN: 1000725294 Category : Science Languages : en Pages : 348
Book Description
The transition state is the critical configuration of a reaction system situated at the highest point of the most favorable reaction path on the potential-energy surface, its characteristics governing the dynamic behavior of reacting systems decisively. This text presents an accurate survey of current theoretical investigations of chemical reactions, with a focus on the nature of the transition state. Its scope ranges from general basic theories associated with the transition states, to their computer-assisted applications, through to a number of reactions in a state-of-the-art fashion. It covers various types of gas-phase elementary reactions, as well as some specific types of chemical processes taking place in the liquid phase. Also investigated is the recently developing transition state spectroscopy. This text will not only serve as a contemporary reference book on the concept of the transition state, but will also assist the readers in gaining valuable key principles regarding the essence of chemical kinetics and dynamics.
Author: Geoffrey D. Wood
Author: Geoffrey D. Wood
Author: 
Author: Alexander V. Kolobov
Author: Udo Schickhoff
Author: Eveline J. van der Steen
Author: Edbert Jarvis Sie
Author: Vladimir Dobrosavljevic
Author: Manchester Institute of Arts and Sciences (Manchester, N.H.)
Author: Kenneth Hewitt
Author: Takayuki Fueno