Books on the topic 'Movement variabiliity'

This chapter provides an overview of the literature on children’s acquisition of constructions involving A(rgument)-movement: passive, unaccusative verbs, raising-to-subject, and raising-to-object. Considering A-movement within a derivational theoretical framework (GB/Minimalism), we provide some historical and theoretical context for treating these constructions under the same operation. In all cases, the surface position of an NP is incongruous with its syntactic configuration for receiving its thematic role. For each construction we discuss empirical evidence concerning children’s knowledge of the construction (including, where available, cross-linguistic data), and the major theoretical debates that have arisen around them, notably Maturation. We suggest that variability in experimental outcomes, both within and across constructions, can be linked to methodological choices and not likely to lack of linguistic knowledge.

Buoyancy largely supports fish, reducing the role of the skeleton, which functions as an attachment for muscle involved in movement and in protection, as exoskeleton (scales, scutes, bony plates) and as endoskeleton (vertebral column, skull). The general organization of fish skeletons and their component parts are described, as well as bone and cartilage. The interesting occurrence of acellular bone, additional to cellular bone, in teleosts is considered. Fish show metameric segmentation with myotomes on either side of the vertebral column, the latter acting as a compression strut, preventing shortening. Myotome muscle is organized into linear units named sarcomeres which contract by means of protein fibres, myosin and actin, sliding past each other. Usually fish body wall muscles occur as a thin outer layer of aerobic red muscle, with an inner thick region of anaerobic white muscle. Interspecific variability in the relative roles of myotomes and fin musculature in swimming is discussed.

This chapter provides a summary of the Greenlandic Dorset culture, previously known as Independence II or Dorset I. Greenlandic Dorset is one aspect of a particularly dynamic period in eastern Arctic prehistory, which saw significant culture change and movement, and which has resulted in the recognition of several regional variants. Important characteristics of Greenlandic Dorset are outlined, with special focus on chronology, artifact style, architecture, and human ecology. Key localities are described in order to indicate the variability in Greenlandic Dorset settlement patterns. The chapter concludes with a consideration of the relationship of Greenlandic Dorset with other contemporary cultures including “transitional” and Early Dorset.

This chapter summarizes our current understanding of the widespread and diverse Pre-Dorset culture, known from the central and eastern parts of the Canadian Arctic between 4500 and 2700 B.P. The Pre-Dorset were mobile foragers, moving across the landscape to exploit seasonally available land and sea mammals in different locales, although the extent of their movements varied considerably. The lithic component of their technology has been more intensively studied than the organic component due to differential preservation; it too is characterized by considerable variability. The chapter summarizes the finds from several sites and explores the difficulty in defining Pre-Dorset as a single cohesive entity due both to its history of research and its enormous geographic extent.

Few traveling between Santa Fe, New Mexico, and the Rio Grande valley realize that they are traversing one of the most significant American Indian migration and settlement corridors in the Southwest, a well-watered and fertile floodplain that served to link peoples of the southern Rocky Mountains and the San Juan River to those of the Jemez range and Sangre de Cristo Mountains, and the Rio Grande, across some 300 miles. This chapter gives an overview of Pueblo (Tiwa, Tewa, Towa, Keres, Hopi, and Zuni), Apache, Navajo, and O’odham histories, and reveals a dual process of migration and place making across a millennium. The Southwest has a high variability in seasonal precipitation, and its peoples have demonstrated creative and adaptable cultures that allowed for movement to new locations and the creation of new homelands as a crucial aspect of their survival.

This book uses all the available evidence to create a site biography of Larinum from 400 bce to 100 ce, with a focus on the urban transformation that occurs there during the Roman conquest. Larinum, a pre-Roman town in the modern region of Molise, undergoes a unique transition from independence to municipal status when it receives Roman citizenship in the 80s bce shortly after the Social War. Its trajectory illuminates complex processes of cultural, social, and political change associated with the Roman conquest throughout the Italian peninsula in the first millennium bce. This work highlights the importance of local isolated variability in studies of the Roman conquest and provides a narrative that supplements larger works on this theme. Through a focus on local-level agency, it demonstrates strong local continuity in Larinum and its surrounding territory. This continuity is the key to Larinum’s transition into the Roman state, which is spearheaded by the local elites. They participate in the broader cultural choices of the Hellenistic koiné and strive to be part of a Mediterranean-wide dialog that, over time, will come to be dominated by Rome. The case is made for advancing the field of Roman conquest studies under a new paradigm of social transformation that focuses on a history of gradual change, continuity, connectivity, and local isolated variability that is contingent on highly specific issues rather than global movements.

Working on the voice, whether diagnosticly, therapeuticly, preventively or restoratively, is and will remain one of the core areas of clinical speech science. The authors of this volume provide information on current vocal research results, interdisciplinary projects and central and marginal aspects of the voice, its variability, disease, diagnosis and therapy. For example, it is about the child's handling of the voice, voice training for transsexuals, the aesthetics of radio voices and special phenomena such as yodelling or overtone singing. Susanne Voigt-Zimmermann, Dr. phil., ENT clinic of the Otto von Guericke University Magdeburg. Stephanie Kurtenbach, Dr. phil., Seminar for Speech Science and Phonetics at the MLU Halle-Wittenberg. Gabriele Finkbeiner, Practice for Speech Therapy Oswald, Rüdersdorf near Berlin, Chairwoman of DBKS e. V. Anke Bergt, Lebenshilfe-Werk Weimar / Apolda e. V., deputy chairwoman of DBKS e. V. Wanda Mainka, Neurological Specialist Hospital for Movement Disorders / Parkinson's, Beelitz-Heilstätten.

The neuropathology of Huntington’s disease (HD) has been studied for many years, but it is only now becoming clear that despite the disease being caused by dysfunction of a single gene, expressed as an expanded polyglutamine in the huntingtin protein, there is a major variability in the pathology throughout different brain regions, especially the basal ganglia and cerebral cortex. Also, the symptoms present as varying degrees of involuntary movements, mood, personality changes, cognitive changes, and dementia, which can vary throughout the course of the disease and vary greatly between cases. Recent extensive clinicopathologic studies suggest that the variable degeneration of the striatum and cerebral cortex correlates with the variable symptom profiles that characterize HD. These overall results suggest that despite the single-gene etiology of HD, there are multiple pathways of degeneration in the forebrain in HD that reflect the symptom diversity.

This book examines the traditional musical arts of Sumatra, with particular emphasis on the ethnographic, cultural, and historical contexts of the performing arts that contain music as well as some of the changes in their style, content, and reception from 1971 when the author began her field travels. The musical arts, or performing arts containing music, include the vocal, instrumental, and body percussive music, the dance and other body movement, the art of self-defense, the bardic arts, and the musical theater performed at domestic ceremonies. The book considers the musico-lingual groups and subgroups of Sumatra—population groups and subgroups that are primarily distinguished from one another on the basis of the lingual attributes of their vocal-musical genres (including songs, ritual/religious chanting, song-dances, and intoned theatrical monologues or exchanges). This chapter provides an overview of some of the major themes that recur throughout the book—identity, rituals and ceremonies, religion, the impact of foreign contact on the performing arts, the musical instruments and pitch variability, the dances and music-dance relationships, social class, gender issues, and arts education.

Recently, the medicine community has been driven to think about patient safety in new ways, and with this new found interest in patient safety, large health care systems and individual institutions have been forced to develop mechanisms to track and measure performance. There is ample evidence that physicians and systems can do better. The tools of this new craft include checklists, protocols, guidelines, and bundles. These tools help to decrease variability in care and enhance the translation of evidence-based medicine to bedside care. Ongoing measurement of both performance and clinical outcomes is central to this movement. This allows for rapid detection of both successes and possible unintended consequences associated with the rapid translation of evidence into practice. As hospitals and intensive care units (ICU) worldwide have embraced the field of quality improvement (QI), many lessons have been learned about the process. QI includes four essential phases—development, implementation, evaluation, and maintenance. Essential to the QI process and each of these QI phases is that the project must be tailored to each individual ICU and/or Institution. A one-size-fits-all project is less efficient, less effective, and at times unnecessary compare with a locally-driven process.

The strongest Indian summer monsoon (ISM) on the planet features prolonged clustered spells of wet and dry conditions often lasting for two to three weeks, known as active and break monsoons. The active and break monsoons are attributed to a quasi-periodic intraseasonal oscillation (ISO), which is an extremely important form of the ISM variability bridging weather and climate variation. The ISO over India is part of the ISO in global tropics. The latter is one of the most important meteorological phenomena discovered during the 20th century (Madden & Julian, 1971, 1972). The extreme dry and wet events are regulated by the boreal summer ISO (BSISO). The BSISO over Indian monsoon region consists of northward propagating 30–60 day and westward propagating 10–20 day modes. The “clustering” of synoptic activity was separately modulated by both the 30–60 day and 10–20 day BSISO modes in approximately equal amounts. The clustering is particularly strong when the enhancement effect from both modes acts in concert. The northward propagation of BSISO is primarily originated from the easterly vertical shear (increasing easterly winds with height) of the monsoon flows, which by interacting with the BSISO convective system can generate boundary layer convergence to the north of the convective system that promotes its northward movement. The BSISO-ocean interaction through wind-evaporation feedback and cloud-radiation feedback can also contribute to the northward propagation of BSISO from the equator. The 10–20 day oscillation is primarily produced by convectively coupled Rossby waves modified by the monsoon mean flows. Using coupled general circulation models (GCMs) for ISO prediction is an important advance in subseasonal forecasts. The major modes of ISO over Indian monsoon region are potentially predictable up to 40–45 days as estimated by multiple GCM ensemble hindcast experiments. The current dynamical models’ prediction skills for the large initial amplitude cases are approximately 20–25 days, but the prediction of developing BSISO disturbance is much more difficult than the prediction of the mature BSISO disturbances. This article provides a synthesis of our current knowledge on the observed spatial and temporal structure of the ISO over India and the important physical processes through which the BSISO regulates the ISM active-break cycles and severe weather events. Our present capability and shortcomings in simulating and predicting the monsoon ISO and outstanding issues are also discussed.

Dramatic climate changes have occurred in the Baltic Sea region caused by changes in orbital movement in the earth–sun system and the melting of the Fennoscandian Ice Sheet. Added to these longer-term changes, changes have occurred at all timescales, caused mainly by variations in large-scale atmospheric pressure systems due to competition between the meandering midlatitude low-pressure systems and high-pressure systems. Here we follow the development of climate science of the Baltic Sea from when observations began in the 18th century to the early 21st century. The question of why the water level is sinking around the Baltic Sea coasts could not be answered until the ideas of postglacial uplift and the thermal history of the earth were better understood in the 19th century and periodic behavior in climate related time series attracted scientific interest. Herring and sardine fishing successes and failures have led to investigations of fishery and climate change and to the realization that fisheries themselves have strongly negative effects on the marine environment, calling for international assessment efforts. Scientists later introduced the concept of regime shifts when interpreting their data, attributing these to various causes. The increasing amount of anoxic deep water in the Baltic Sea and eutrophication have prompted debate about what is natural and what is anthropogenic, and the scientific outcome of these debates now forms the basis of international management efforts to reduce nutrient leakage from land. The observed increase in atmospheric CO2 and its effects on global warming have focused the climate debate on trends and generated a series of international and regional assessments and research programs that have greatly improved our understanding of climate and environmental changes, bolstering the efforts of earth system science, in which both climate and environmental factors are analyzed together.Major achievements of past centuries have included developing and organizing regular observation and monitoring programs. The free availability of data sets has supported the development of more accurate forcing functions for Baltic Sea models and made it possible to better understand and model the Baltic Sea–North Sea system, including the development of coupled land–sea–atmosphere models. Most indirect and direct observations of the climate find great variability and stochastic behavior, so conclusions based on short time series are problematic, leading to qualifications about periodicity, trends, and regime shifts. Starting in the 1980s, systematic research into climate change has considerably improved our understanding of regional warming and multiple threats to the Baltic Sea. Several aspects of regional climate and environmental changes and how they interact are, however, unknown and merit future research.

The aim of the paper was to determine the influence of root systems of chosen tree species found in the Polish Flysch Carpathians on the increase of soil shear strength (root cohesion) in terms of slope stability. The paper's goal was achieved through comprehensive tests on root systems of eight relatively common in the Polish Flysch Carpathians tree species. The tests that were carried out included field work, laboratory work and analytical calculations. As part of the field work, the root area ratio (A IA) of the roots was determined using the method of profiling the walls of the trench at a distance of about 1.0 m from the tree trunk. The width of the. trenches was about 1.0 m, and their depth depended on the ground conditions and ranged from 0.6 to 1.0 m below the ground level. After preparing the walls of the trench, the profile was divided into vertical layers with a height of 0.1 m, within which root diameters were measured. Roots with diameters from 1 to 10 mm were taken into consideration in root area ratio calculations in accordance with the generally accepted methodology for this type of tests. These measurements were made in Biegnik (silver fir), Ropica Polska (silver birch, black locust) and Szymbark (silver birch, European beech, European hornbeam, silver fir, sycamore maple, Scots pine, European spruce) located near Gorlice (The Low Beskids) in areas with unplanned forest management. In case of each tested tree species the samples of roots were taken, transported to the laboratory and then saturated with water for at least one day. Before testing the samples were obtained from the water and stretched in a. tensile testing machine in order to determine their tensile strength and flexibility. In general, over 2200 root samples were tested. The results of tests on root area ratio of root systems and their tensile strength were used to determine the value of increase in shear strength of the soils, called root cohesion. To this purpose a classic Wu-Waldron calculation model was used as well as two types of bundle models, the so called static model (Fiber Bundle Model — FIRM, FBM2, FBM3) and the deformation model (Root Bundle Model— RBM1, RBM2, mRBM1) that differ in terms of the assumptions concerning the way the tensile force is distributed to the roots as well as the range of parameters taken into account during calculations. The stability analysis of 8 landslides in forest areas of Cicikowicleie and Wignickie Foothills was a form of verification of relevance of the obtained calculation results. The results of tests on root area ratio in the profile showed that, as expected, the number of roots in the soil profile and their ApIA values are very variable. It was shown that the values of the root area ratio of the tested tree species with a diameter 1-10 ram are a maximum of 0.8% close to the surface of the ground and they decrease along with the depth reaching the values at least one order of magnitude lower than close to the surface at the depth 0.5-1.0 m below the ground level. Average values of the root area ratio within the soil profile were from 0.05 to 0.13% adequately for Scots pine and European beech. The measured values of the root area ratio are relatively low in relation to the values of this parameter given in literature, which is probably connected with great cohesiveness of the soils and the fact that there were a lot of rock fragments in the soil, where the tests were carried out. Calculation results of the Gale-Grigal function indicate that a distribution of roots in the soil profile is similar for the tested species, apart from the silver fir from Bie§nik and European hornbeam. Considering the number of roots, their distribution in the soil profile and the root area ratio it appears that — considering slope stability — the root systems of European beech and black locust are the most optimal, which coincides with tests results given in literature. The results of tensile strength tests showed that the roots of the tested tree species have different tensile strength. The roots of European beech and European hornbeam had high tensile strength, whereas the roots of conifers and silver birch in deciduous trees — low. The analysis of test results also showed that the roots of the studied tree species are characterized by high variability of mechanical properties. The values Of shear strength increase are mainly related to the number and size (diameter) of the roots in the soil profile as well as their tensile strength and pullout resistance, although they can also result from the used calculation method (calculation model). The tests showed that the distribution of roots in the soil and their tensile strength are characterized by large variability, which allows the conclusion that using typical geotechnical calculations, which take into consideration the role of root systems is exposed to a high risk of overestimating their influence on the soil reinforcement. hence, while determining or assuming the increase in shear strength of soil reinforced with roots (root cohesion) for design calculations, a conservative (careful) approach that includes the most unfavourable values of this parameter should be used. Tests showed that the values of shear strength increase of the soil reinforced with roots calculated using Wu-Waldron model in extreme cases are three times higher than the values calculated using bundle models. In general, the most conservative calculation results of the shear strength increase were obtained using deformation bundle models: RBM2 (RBMw) or mRBM1. RBM2 model considers the variability of strength characteristics of soils described by Weibull survival function and in most cases gives the lowest values of the shear strength increase, which usually constitute 50% of the values of shear strength increase determined using classic Wu-Waldron model. Whereas the second model (mRBM1.) considers averaged values of roots strength parameters as well as the possibility that two main mechanism of destruction of a root bundle - rupture and pulling out - can occur at the same. time. The values of shear strength increase calculated using this model were the lowest in case of beech and hornbeam roots, which had high tensile strength. It indicates that in the surface part of the profile (down to 0.2 m below the ground level), primarily in case of deciduous trees, the main mechanism of failure of the root bundle will be pulling out. However, this model requires the knowledge of a much greater number of geometrical parameters of roots and geotechnical parameters of soil, and additionally it is very sensitive to input data. Therefore, it seems practical to use the RBM2 model to assess the influence of roots on the soil shear strength increase, and in order to obtain safe results of calculations in the surface part of the profile, the Weibull shape coefficient equal to 1.0 can be assumed. On the other hand, the Wu-Waldron model can be used for the initial assessment of the shear strength increase of soil reinforced with roots in the situation, where the deformation properties of the root system and its interaction with the soil are not considered, although the values of the shear strength increase calculated using this model should be corrected and reduced by half. Test results indicate that in terms of slope stability the root systems of beech and hornbeam have the most favourable properties - their maximum effect of soil reinforcement in the profile to the depth of 0.5 m does not usually exceed 30 kPa, and to the depth of 1 m - 20 kPa. The root systems of conifers have the least impact on the slope reinforcement, usually increasing the soil shear strength by less than 5 kPa. These values coincide to a large extent with the range of shear strength increase obtained from the direct shear test as well as results of stability analysis given in literature and carried out as part of this work. The analysis of the literature indicates that the methods of measuring tree's root systems as well as their interpretation are very different, which often limits the possibilities of comparing test results. This indicates the need to systematize this type of tests and for this purpose a root distribution model (RDM) can be used, which can be integrated with any deformation bundle model (RBM). A combination of these two calculation models allows the range of soil reinforcement around trees to be determined and this information might be used in practice, while planning bioengineering procedures in areas exposed to surface mass movements. The functionality of this solution can be increased by considering the dynamics of plant develop¬ment in the calculations. This, however, requires conducting this type of research in order to obtain more data.