The unstable shoulder Wallace, Andrew L; Alexander, Susan; Gupte, Chinmay M
Hospital medicine (London, England : 1998),
11/2004, Letnik:
65, Številka:
11
Journal Article
Not all unstable shoulders are the same, and careful patient selection ensures proper treatment. Improved understanding of the mechanisms of stability, advances in imaging and arthroscopic technology ...mean that repeated visits to the emergency department with a painful dislocated shoulder should be a thing of the past.
Lupin, Lupinus L Cowling, W.A. (Crop Breeding Agriculture Western Australia, Bentley (Australia)); Buirchell, B.J. (Crop Breeding Agriculture Western Australia, Bentley (Australia)); Tapia, M.E. (Centro Internacional de la Papa/CONDESAN, La Molina (Peru))
Promoting the Conservation and Use of Underutilized and Neglected Crops (IPGRI),
1998
23
Book
Indigenous political movements represent an emerging challenge to globalization as embodied by the spread of capitalist free markets and neoliberal reform. Indigenous groups are creating new spaces ...in which to express agency and propose alternatives to the dominant growth economic model. Although these processes have led to the creation of new and hybrid norms of development, they have also resulted in conflict between indigenous peoples and the nation-states within which they reside. The role of scholarly analysis in exploring and understanding these processes is crucial. However, conventional Western approaches—namely Marxist and Liberal—may prove insufficient for two reasons, one empirical and the other normative. First, these approaches are derived from a set of specific historical experiences which differ greatly from those of the indigenous societies they would presume to study. Such divergent experiences necessarily limit the scholar's ability to analyze and comprehend these processes. Second, relying exclusively upon Western modes of inquiry may be perceived as a colonial imposition. Such an approach would appear to reproduce the colonial relationship by privileging Western knowledge and assumptions. The goal of this research is to address these issues by incorporating native perspectives into a broader scholarly approach. When deployed alongside Marxist and Liberal frameworks, the Indigenist paradigm should provide greater comprehension of indigenous movements as they confront globalization. Furthermore, indigenous perspectives are here represented alongside Western perspectives as equals, thus “decolonizing” the mind. To accomplish this task, I have constructed a theoretical framework for charting the knowledge and assumptions of Marxist, Liberal, and Indigenist thought. Indigenist literature from North and Central America is reviewed in order to develop a coherent native ontological and epistemological perspective. Finally, all three conceptual paradigms are applied to the case of the Zapatista movement in Mexico from the 1980's to the early 2000s. This comparative approach reveals both the strengths and limitations of each perspective, with particular emphasis on the contributions of Indigenism to scholarly inquiry.
This paper introduces the first ever appearance-based simulator of burst illumination laser sequences from a single, conventional video image of a vehicle. The appearance-based approach allows us to ...dispose of the very complex physical models needed to achieve realism. The system uses a dictionary of 3-D, geometric object models and a dictionary of intensity-time profile examples. The latter were obtained from real images acquired for a number of different materials and surface orientations. To generate a synthetic time-gated sequence the user provides simply a single, conventional photograph of a vehicle in a desired orientation. The photograph is matched interactively to a database of 3-D geometric models of vehicles, estimating 3-D pose and approximate relative depths at all points. Depths are then used to simulate time-gating, and consequently to decide which object parts are imaged for every depth. Model surface orientation and material are used to index the example dictionary and assign an intensity-time profile to imaged pixels. Results indicate very promising performance.
Discrete return (DR) Laser Detection and Ranging (Ladar) systems provide a series of echoes that reflect from objects in a scene. These can be first, last or multi-echo returns. In contrast, ...Full-Waveform (FW)-Ladar systems measure the intensity of light reflected from objects continuously over a period of time. In a camouflaged scenario, e.g., objects hidden behind dense foliage, a FW-Ladar penetrates such foliage and returns a sequence of echoes including buried faint echoes. The aim of this paper is to learn local-patterns of co-occurring echoes characterised by their measured spectra. A deviation from such patterns defines an abnormal event in a forest/tree depth profile. As far as the authors know, neither DR or FW-Ladar, along with several spectral measurements, has not been applied to anomaly detection. This work presents an algorithm that allows detection of spectral and temporal anomalies in FW-Multi Spectral Ladar (FW-MSL) data samples. An anomaly is defined as a full waveform temporal and spectral signature that does not conform to a prior expectation, represented using a learnt subspace (dictionary) and set of coefficients that capture co-occurring local-patterns using an overlapping temporal window. A modified optimization scheme is proposed for subspace learning based on stochastic approximations. The objective function is augmented with a discriminative term that represents the subspace's separability properties and supports anomaly characterisation. The algorithm detects several man-made objects and anomalous spectra hidden in a dense clutter of vegetation and also allows tree species classification.
This work proposes an approach that finds efficient representations for training and classification of different mine like objects (MLOs) in underwater imagery, e.g. side scan sonar and synthetic ...aperture sonar (SAS). The focus is on the design and selection of a compact, optimal and a non linear snbspace, a dictionary, based on the gradient and curvature models in 2D images. Here, the traditional sparse approximation formulation is decoupled and modified by an additional discriminating objective function and a corresponding selection strategy is proposed. During training, using a set of labelled sonar images, a single optimised discriminatory dictionary is learnt which can then be used to represent MLOs. During classification, this dictionary together with optimised coefficient vectors is used to label scene entities. Evaluation of our approach has resulted in classification accuracies of 95% and 94% on realistic synthetic side-scan images and real CMRE SAS imagery, respectively.
Background
Type II superior labral (SLAP) tears commonly occur in athletes in the abducted and externally rotated position in the late cocking phase of throwing. This study investigates arthroscopic ...repairs of SLAP lesions using a knotless polymeric (KINSA) anchor.
Methods
Superficial tissues were dissected from 10 cadaveric shoulders. The glenohumeral capsule was preserved. Type II SLAP tears were created through arthroscopic portals and repaired with two anchors anterior and posterior to the biceps tendon. Glenohumeral joints were then fixed in 60° gleno-humeral abduction in the scapular plane with 1 Nm torque in external rotation to recreate the late cocking phase of the throwing cycle. Specimens were mounted onto an Instron machine and the biceps tendon was loaded until failure.
Results
The mean ultimate peak load was 239 N (SD 101 N). The primary mode of failure was in the tendon substance and 19 out of 20 anchors remained intact in bone.
Conclusion
To our knowledge this is the first study to investigate arthroscopic SLAP repairs in an intact joint in this susceptible position. We conclude that the KINSA anchor can withstand high tensile loads and may be used to treat SLAP tears in high-demand overhead throwing athletes.
Letters to the Editor Ozenci, A. Merter; Panjabi, Manohar M.; Wallace, Andrew L. ...
The American journal of sports medicine,
07/2002, Letnik:
30, Številka:
4
Journal Article
Letters to the Editor Ozenci, A. Merter; Panjabi, Manohar M.; Wallace, Andrew L. ...
The American journal of sports medicine,
07/2002, Letnik:
30, Številka:
4
Journal Article
The Herculaneum conservation Project Wallace-Hadrill, Andrew
Conservation and management of archaeological sites,
01/2006, Letnik:
8, Številka:
4
Journal Article
Recenzirano
This short text places the archaeological site of Herculaneum, Italy and the Herculaneum Conservation Project in context, and introduces the volume of articles on this subject. The author outlines ...the importance of the site, and the public/private partnership that was launched in order to tackle the problems of decay there. Reprinted by permission of James & James Earthscan
