12,355 research outputs found
Long-term efficacy of microdebrider-assisted inferior turbinoplasty with lateralization for hypertrophic inferior turbinates in patients with perennial allergic rhinitis
No full textEffective Diversity Training
No full textDiversity training is an important and widely used component of organizational diversity management
initiatives. This chapter reviews theory and research on diversity training design, delivery, evaluation,
and effectiveness. The review suggests that in the past 10 to 15 years of research, advancements have
been made on several fronts. The research literature on diversity training includes frameworks for
pretraining needs assessment, learning models to guide diversity training design choices, and empirical
evidence of diversity training’s impact on training outcomes. However, the review also notes two
major shortcomings. First, research has emphasized diversity training’s effect on short-term changes
in trainees’ knowledge and attitudes, neglecting longer-term changes in their skills and behavior.
Second, research has emphasized diversity training’s effect on individual-level learning outcomes,
neglecting its impact on team- and organization-level outcomes. These shortcomings are unlikely to
be addressed unless scholars and practitioners engage in more collaborative field-based research on
diversity training
Application of CT in Diagnosing Carcinoma of the Maxillary Sinuses : PART 2: An Experimental Study of Pitfalls Encountered when Diagnosing Carcinoma of the Maxillary Sinuses with CT
Full text link1982-03A phantom simulating the transverse section of the maxillary sinuses was constructed for experimentation with various CT scanners to study the following: (1) the occasional inability to image the very thin posterior-lateral walls which have no real bone defects, and (2) to verify whether or not the bony walls surrounding the maxillary sinuses are actually as thick as they appear on CT. The phantom was made of an acrylic cylinder containing three cavities simulating the maxillary sinuses and the nasal cavity and filled with water. The walls, made of thin aluminum and acrylic plates and placed between water and air, disappeared in some CT images. The thickness of the walls calculated from CT values was greater than the true thickness imaged by each CT scanner. The author stresses that in CT images, either experimentally or clinically, thin bony walls placed between water and air or fat tend to disappear, and that bony walls tend to appear thicker than their true thickenss.departmental bulletin pape
UNERTAN SYNDROME: A CASE SERIES DEMONSTRATING HUMAN DEVOLUTION
No full textA large family with six individuals exhibiting the Unertan syndrome (UTS)was identified residing in southern Turkey. All of the individuals had mental impairments and walked on all four extremities. The practice of intra-familial\ud
marriages suggested that theUTS may be an autosomal recessive disorder, similar to previously described cases. The inferior portions of the cerebellum and vermis were\ud
absent as evidenced by MRI and CT scans. The height and head circumference of those affected were within normal ranges. Barany’s test suggested normal vestibular\ud
system function. The subjects could not name objects or their close relatives. The males (n = 4) could understand simple questions and commands, but answered questions with only one or two sounds. The females (n = 2) were superior to\ud
the males with respect to language skills and walking, suggesting an association between walking and speaking abilities. One male exhibited three walking patterns\ud
at the same time: quadripedal, tiptoe, and scissor walking. Another male used two walking styles: quadripedal and toe-walking. It is emphasized that there are important differences between the UTS and the disequilibrium syndrome. It is suggested that the inability to walk upright in those affected with the UTS may be\ud
best explained by a disturbance in lateral-balance mechanisms,without being related to the cerebello-vestibular system.An interruption of locomotor development during the transition from quadripedality to bipedality may result in habitual walking on all four extremities and is normal in some children. Because quadripedal\ud
gait is an ancestral trait, individuals with the UTS, exhibiting a manifestation of reverse evolution in humans, may be considered an experiment of nature, useful\ud
in understanding the mechanisms underlying the transition from quadripedality to bipedality during human evolution. The proposed mutant gene or gene pool playing\ud
a role in human quadrupedality may also be responsible for human bipedality at the same time. Herein there is no intent to insult or injure; rather, this report is an\ud
endeavor to better understand human beings. Supplementary materials are available for this article. Go to the publisher’s online edition of International Journal of\ud
Neuroscience for the following free supplemental resource(s): video clips
CT based classification of long spinal allograft fusion
No full textAbstract Anterior column reconstruction of the thoracolumbar spine by structural allograft has an increased potential for biological fusion when compared to synthetic reconstructive options. Estimation of cortical union and trabecular in-growth is, however, traditionally based on plain radiography, a technique lacking in sensitivity. A new assessment method of bony union using high-speed spiral CT imaging is proposed which reflects the gradually increasing biological stability of the construct. Grade I (complete fusion) implies cortical union of the allograft and central trabecular continuity. Grade II (partial fusion) implies cortical union of the structural allograft with partial trabecular incorporation. Grade III (unipolar pseudarthrosis) denotes superior or inferior cortical non-union of the central allograft with partial trabecular discontinuity centrally and Grade IV (bipolar pseudarthrosis) suggests both superior and inferior cortical non-union with a complete lack of central trabecular continuity. Twenty-five patients underwent anterior spinal reconstruction for a single level burst fracture between T4 and L5. At a minimum of two years follow up the subjects underwent high-speed spiral CT scanning through the reconstructed region of the thoracolumbar spine. The classification showed satisfactory interobserver (kappa score = 0.91) and intraobserver (kappa score = 0.95) reliability. The use of high-speed CT imaging in the assessment of structural allograft union may allow a more accurate assessment of union. The classification system presented allows a reproducible categorization of allograft incorporation with implications for treatment
18F-FDG PET/CT in Neurolymphomatosis: Report of 3 Cases
No full textNeurolymphomatosis is a rare manifestation of non-Hodgkin lymphoma characterized by infiltration of peripheral nerves, nerve roots, plexus and cranial nerves by malignant lymphocytes. This report presents positron emission tomography/computed tomography (PET/CT)imaging with 2-deoxy-2-18F-fluoro-D-glucose (18F-FDG) in 3 cases of non-Hodgkin lymphoma with nerve infiltration, including one newly diagnosed lymphoma, one recurrent lymphoma in previous nerve lesions and one newly recurrent lymphoma. PET/CT could reveal the affected neural structures including cranial nerves, spinal nerve roots, brachial plexus, cervicothoracic ganglion, intercostal nerves, branches of the vagus nerve, lumbosacral plexus and sciatic nerves.There was relative concordance between PET/CT and MRI in detection of affected cranial nerves. PET/CT seemed to be better than MRI in detection of affected peripheral nerves.
18F-FDG PET/CT was a whole-body imaging technique with the ability to reveal the affected cranial nerves, peripheral nerves, nerve roots and plexus in non-Hodgkin lymphoma. A thorough understanding of disease and use of advanced imaging modalities will increasingly detect neurolymphomatosi
Performance monitoring of PPVC connectors
No full textWith the recent game changing technologies, Prefinished Prefabricated Volumetric
Construction (PPVC) has become the default method for high-rise construction. The use of
PPVC could improve the productivity on-site and at the same time, reduce the project
duration and cost. As this approach is relatively new, there is no design code specifically
on this PPVC system.
Hence, this final year project is mainly focused on performance monitoring of PPVC
connectors (wire loop and key bar) in reinforced concrete (RC) modular system. Two
experiments will be carried out namely Direct Shear Test to simulate the sudden loss of
module at the level below and Separation Test to simulate the separation force experienced
by the PPVC wall. Various types of sensors will be used to measure the strain and
displacement in real-time throughout the experiment for analysis. Thus, this report will
enhance the understanding on PPVC connectors and its failure behaviour under different
types of loading.
In addition, ANSYS simulation was also carried out concurrently and it will be used to
further complement the results obtained from laboratory tests. The comparison and
discussion will be covered under another report, CT-10AB-2.
This final year project topic consists of two reports namely, CT-10AB-1 and CT-10AB-2
with this report being CT-10AB-1.Bachelor of Engineering (Civil
- …
