Medicine
Compressed Sensing Compressed Sensing (CS) is a way to reconstruct an image using fewer acquisition points. Often times in MRI, acquired signals are repeated. In theory a few selected points in MRI can be sampled and the rest can be estimated to cut the scan time...
Medicine
K-space The main purpose of k-space is to maintain the data acquired during a scan prior to processing the image. In the clinical world, k-space is one level in the creation of the image. It is not seen or stored in regular scans. In the research world often you have...
Medicine
Fourier Transform Fourier transform is an integral transform that in this case transforms a time function and expresses it as a function of frequency. An inverse Fourier transform represents the frequency function in time. The concept of Fourier transform becomes...
Medicine
Magnetic Resonance Imaging (MRI) MRI stands for magnetic resonance imaging. The detected signal in MRI is obtained from the protons, most often the hydrogen protons, in the various tissues within the body. These protons create a net magnetization when they are...
Medicine
Examination of footwear impression evidence The production and appearance of the impressions is controlled by a number of variables including physical factors such as the amount of pressure applied while creating the impressions, the structure of the foot and presence...
Medicine
Collection and enhancement of footwear impression evidence Impression evidence is generally transient in nature and hence adequate steps must be taken to ensure efficient collection, documentation and preservation of this evidence. Photographing the impression at the...
image processing
History and relevance of footwear impressions The discipline of forensic comparative science comprises the examination of multiple forms of evidence, most notably, latent prints, track impressions (footwear and tire), firearms and questioned documents. Track...
Medicine
The healing of bone grafts Bone is a unique connective tissue in that it heals and remodels by cellular regeneration rather than scar formation. This cellular regeneration makes the nonvascularized bone grafts possible. The immature mesenchymal stem cells can...
Medicine
Bone reconstruction options for the Mandible Reconstruction of the lower jaw avoids severe functional and esthetic debilitation. The ideal reconstruction should re-establish oral continuity, allow for dental rehabilitation, restore sensation of the lower lip, restore...
Medicine
Anatomy and physiology of the Mandible The lower jaw (mandible) consists of a horseshoe-shaped segment harboring the alveolar segment that supports the dentition. It connects posteriorly with two vertical rami, which articulate with the temporal bones via round...
Medicine
Advantages of Long-acting reversible contraceptives(LARC) Overall, LARC methods are seen as the preferred contraceptive for the adolescent population by providers, but are not yet the method of choice among patients. Providers and patients agree that the...
Medicine
Types of Long-acting reversible contraceptives The Implant “the implant”, is a 4 cm long cylindrical implant that is placed under the skin of the upper arm providing a continuous release of etonogestrel 68mg for three years (Merck, 2011). The failure rate is extremely...
Medicine
Adolescent Primary Care Utilization Overall, 16-20% of adolescent girls lack access to primary care and are more likely to report no regular source of health care as compared to children (McKee & Fletcher, 2006; Schoen, Davis, & Scott Collins, 1997; Burns...
Medicine
Adolescent Contraception General Use Overall, American adolescent female contraception usage has improved from 79.9% in 1988 to 85.6% today (Centers for Disease Control and Prevention (CDC), 2011). The overall rate is comparable with available data for Canada,...
Medicine
Adolescent Pregnancy The United States unintended pregnancy rate is 147 per 1,000 in sexually active women 15-17 years of age and 162 per 1,000 in sexually active women aged 18-19, significantly higher than in similarly developed nations (Finer, 2010; Singh &...
Medicine
Adolescent Sexual Behavior In the U.S., the average age at first intercourse for women is 17.1 years with 27% of 15-17 year-old females and 62.7% of 18-19 year-old females reporting they have ever had intercourse (CDC, 2013). Rates of adolescent sexual intercourse are...
