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Web Spaces (web + space)

Distribution by Scientific Domains
Medical Sciences55%

Kinds of Web Spaces

  • first web space
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    Selected Abstracts

    Letter: The Use of Sterile Gauze as a Retractor When Performing Surgery in the Web Spaces

    DERMATOLOGIC SURGERY, Issue 4 2008
    MANDY HARTING MD
    No abstract is available for this article. [source]

    Dimensions and elements of people's mental models of an information-rich Web space

    JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 11 2010
    Yan Zhang
    Although considered proxies for people to interact with a system, mental models have produced limited practical implications for system design. This might be due to the lack of exploration of the elements of mental models resulting from the methodological challenge of measuring mental models. This study employed a new method, concept listing, to elicit people's mental models of an information-rich space, MedlinePlus, after they interacted with the system for 5 minutes. Thirty-eight undergraduate students participated in the study. The results showed that, in this short period of time, participants perceived MedlinePlus from many different aspects in relation to four components: the system as a whole, its content, information organization, and interface. Meanwhile, participants expressed evaluations of or emotions about the four components. In terms of the procedural knowledge, an integral part of people's mental models, only one participant identified a strategy more aligned to the capabilities of MedlinePlus to solve a hypothetical task; the rest planned to use general search and browse strategies. The composition of participants' mental models of MedlinePlus was consistent with that of their models of information-rich Web spaces in general. [source]

    Comparative analysis of webometric measurements in thematic environments

    JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 8 2005
    Cristina Faba-Pérez
    There have been many attempts to evaluate Web spaces on the basis of the information that they provide, their form or functionality, or even the importance given to each of them by the Web itself. The indicators that have been developed for this purpose fall into two groups: those based on the study of a Web space's formal characteristics, and those related to its link structure. In this study we examine most of the webometric indicators that have been proposed in the literature together with others of our own design by applying them to a set of thematically related Web spaces and analyzing the relationships between the different indicators. [source]

    Temporoparietal fascial free flap for correction of first web space atrophy

    MICROSURGERY, Issue 1 2010
    Arthi Kruavit M.D.
    Fourteen temporoparietal fascial free flaps were used for correction of first web space atrophy from ulnar nerve palsy in 13 patients. Ten sustained ulnar nerve injuries and three suffered from leprosy. The procedures were performed under general anesthesia except one leprosy patient with bilateral ulnar nerve palsy in which local anesthesia and brachial block were employed to harvest bilateral free flaps and recipient site preparations, respectively. The follow-up time varied from 4 to 64 months. The postoperative results were satisfactory and there was no resorption of the free flaps. The consistency of the augmented first web space was soft and compressible like natural feel. The size of the flap was more than enough for augmentation of first web space and donor site morbidity was minimal and accepted by all patients. We conclude that temporoparietal fascial free flap is an ideal autogenous tissue for correction of first web space atrophy. © 2009 Wiley-Liss, Inc. Microsurgery 2010. [source]

    Etiological musculo-skeletal factor in focal dystonia in a musician's hand: A case study of the right hand of a guitarist

    MOVEMENT DISORDERS, Issue 12 2007
    Joris N.A.L. Leijnse PhD
    Abstract A case study is presented in which a focal hand dystonia seems to have developed in the right hand of a classical guitarist as a result of a neuromuscular peripheral defect caused by trauma. The trauma was a near total perforation of the first web space by a splinter. Healing was uneventful without apparent functional complications. Two years later the patient noticed difficulties in extending the index in playing, for which he received various unsuccessful treatments during seven years. However, we found more severe dystonic symptoms (cocontractions) in the thumb than in the index during playing, which correlated with an undiagnosed insufficiency in the flexor pollicis brevis (FPB). This defect allowed proposing a biomechanical analysis of compensations for diminished thumb control in playing, which would explain the dysfunction in the index in playing as overcompensation for the thumb problem. If this analysis is correct, the etiology of the case can be traced back to underlying multiarticular control problems in the thumb caused by an insufficient FPB. This defect was considered irrepairable. It was concluded that even with knowledge of the underlying cause, a potentially successful treatment of the dystonia might not exist in this case. The case would demonstrate that task-specific hand dystonias can arise as overcompensations for (peripheral) neuro-musculoskeletal defects. The case is illustrated by videos of playing and functional thumb tests. © 2007 Movement Disorder Society [source]

    HS07 TOE TRANSFER , TECHNIQUES & RESULTS

    ANZ JOURNAL OF SURGERY, Issue 2007
    L. C. Teoh
    Toe to thumb-finger transfer requires the understanding of microsurgery and reconstructive technique. The success is measured by the viability of the toe and eventually recreating the function of the original loss. In harvesting of the toe, the big and second toe follows almost the same technique. Identifying the toe artery over the first web space and then dissecting proximally into the intermetatarsal artery is the best approach. To dissect the artery from proximal to distal is often fraught with many dangers. In my cases about 50% the plantar artery is dominant. Anticipation and planning of the artery length is crucial. In toe to thumb transfer the choice can be 2nd toe, total big toe, trimmed big toe or wrap around transfer. In our local populations, 2nd toe is always a good choice. First reconstruction with flap resurfacing may be necessary if the thumb amputation is very proximal. Toe to fingers transfer is usually indicated in 4 finger loss of the hand. In toe to finger transfer I prefer the two 2nd toes transfer into the middle and ring finger position. As the transferred toes can regain less that 50% of motion, the positioning of the toes should be opposable to the thumb. The concept of total reconstruction should be closely followed. Stable skeletal fixation, tendon weave technique, good nerve repair, adequate skin coverage and primary healing are important to ensure good outcome result. [source]

    A Japanese case of Kindler syndrome

    INTERNATIONAL JOURNAL OF DERMATOLOGY, Issue 4 2000
    Yasushi Suga MD
    A 25-year-old Japanese woman presented with contracture of the fingers and toes, and difficulty in opening her mouth. Her grandparents are first cousins, but none of the other members of the family are affected. Bulla formation started at birth on areas of the skin that received pressure, and in infancy and early childhood the lesions were limited only to the acral areas. She also had bilateral, incomplete syndactylies involving all web spaces ( Fig. 1a). The formation of blisters ceased after the age of 15 years, but a generalized progressive poikiloderma then appeared with accompanying cutaneous atrophy of the skin of the neck, trunk, and extremities ( Fig. 1b). The patient experienced mild photosensitivity of the face and neck. At age 18 years, surgical removal of the webbing of all her fingers was performed. Oral examination showed atrophy of the buccal mucosa, and an inability to fully open the mouth. The patient also suffered from poor dentition and easily bleeding gums, but had no symptoms of esophageal dysfunction. Figure 1. Clinical manifestations of the patient with Kindler syndrome. (a) Dorsal surface of the patient's hands. Note the marked cutaneous atrophy with a severely wrinkled appearance on the dorsal surface of the hands, as well as the proximal fusion of the fingers. (b) Lower left leg of the patient. Atrophic thinning of the skin and poikiloderma with reticular pigmentation are evident Histology of separate biopsy specimens, taken from the poikilodermatous pretibial and trunk skin, showed classical features of poikiloderma, namely epidermal atrophy with flattening of the rete ridges, vacuolization of basal keratinocytes, pigmentary incontinence, and mild dermal perivascularization ( Fig. 2a). Interestingly, dyskeratotic cells ( Fig. 2b) and eosinophilic rounded bodies (colloid bodies) ( Fig. 2c) were frequently found at the basal keratinocyte layer and in the upper dermis, respectively. Pigment was also present in the upper epidermis. Figure 2. Hematoxylin and eosin staining of a biopsy specimen taken from pretibial skin. (a) Epidermal atrophy with flattening of the rete ridges. Note the dyskeratotic cells (arrowheads) and vacuolar degeneration of the basal layer in the epidermis. Bar = 50 ,m. (b) Higher magnification of dyskeratotic cells (arrowheads). Bar = 10 ,m. (c) Higher magnification of colloid bodies (arrowheads) in the superficial dermis. Bar = 10 ,m To rule out the possibility of a congenital epidermolysis bullosa, ultrastructural and immunofluorescence studies were performed. Ultrastructural studies demonstrated the reduplication of the basal lamina with branching structures within the upper dermis and cleavage between the lamina densa and the cell membrane of the keratinocytes ( Fig. 3a). The numbers of associated anchoring fibrils did not seem to be reduced, and colloid bodies and dyskeratotic cells were detected. Immunofluorescence studies with the antibody against type VII collagen (LH 7 : 2) were subsequently carried out. The results showed extensive broad bands with intermittently discontinuous and reticular staining at the dermo-epidermal junction (DEJ) ( Fig. 3b), whereas a linear distribution is typically seen in healthy tissue (data not shown). Interestingly, direct immunofluorescence studies revealed intracellular accumulation of immunoglobulin G (IgG), IgM, IgA, and C3 in colloid bodies under the basement membrane ( Fig. 3c). Figure 3. Ultrastructural and immunohistochemical findings of the patient with Kindler syndrome. (a) Ultrastructural study of the dermo-epidermal junction. The branching structures of the lamina densa (arrowheads) were frequently seen. The asterisks show the cleavage in the lamina lucida. Bar = 1 ,m. (b) Immunohistochemical studies with the antibody to type VII collagen (LH 7 : 2). An extensive broad band with reticular patterns is evident. Bar = 50 ,m. E, epidermis; D, dermis. (c) Direct immunofluorescence study. Intracytoplasmic deposition of IgM in the basal keratinocytes is evident (arrowheads). Bar = 50 ,m. E, epidermis; D, dermis [source]