Lemierre syndrome : more than just a sore throat

A previously healthy, 35-year-old, immunocompetent man presented with a 2-day history of sore throat and unilateral swelling of the right neck. The patient was found to be tachycardic and pyrexic on clinical examination.peer-reviewe

Teaching neuroImages : chordoma

In this study Dr. Azzopardi was responsible for conducting the literature review and drafting the manuscript and accepts responsibility for conduct of research, final approval, and acquisition of data. Dr. Grech accepts responsibility for conduct of research, final approval, acquisition of data, and study supervision and made the radiologic diagnosis.peer-reviewe

Bilateral primary testicular lymphoma

A 56-year-old man presented to his general practitioner with a painless, rapidly growing left testicular mass over a period of 3 months. The patient was a known case of type II diabetes mellitus and hypertension with no relevant surgical history. He did not report any dysuria, fever or weight loss. On examination, there was bilateral diffuse, non-tender testicular enlargement without regional lymphadenopathy. Sonographic assessment revealed an enlarged left hypoechoic testicle measuring approximately 5 cm in width and 8 cm in length. It demonstrated a diffusely heterogenous infiltrative pattern and increased internal Doppler flow. The right testicle measured 5 cm × 6 cm with otherwise similar sonographic findings.peer-reviewe

Adult colorectal intussusception

A 30-year-old woman presented with severe lower, colicky abdominal pain and difficulty in passing flatus. Clinical examination revealed suprapubic tenderness. An abdominal CT was performed which revealed a soft-tissue mass in the pelvis demonstrating ‘a target sign’ appearance confirming the diagnosis of intussusception. The effect of the intussusceptum within the intussuscipiens creates a layered appearance. There is loss of gas within the rectum, instead, this is replaced by a soft-tissue mass of fat density (Hounsfield units −10). A diagnosis of rectosigmoid intussusception was carried out based on the CT findings with a presumptive diagnosis of an intramural lipoma as the primary lead point. Surgical reduction was performed with resection of the distal sigmoid colon. Histology confirmed an intramural lipoma of the sigmoid colon.peer-reviewe

Imaging of adult ocular and orbital pathology - a pictorial review

Orbital pathology often presents a diagnostic challenge to the reporting radiologist. The aetiology is protean, and clinical input is therefore often necessary to narrow the differential diagnosis. With this manuscript, we provide a pictorial review of adult ocular and orbital pathology.peer-reviewe

Objective video quality metrics for HDTV services : a survey

The exponential growth of video traffic is expected to reach 62% of the global Internet traffic by the end of 2015. This presents as a significant challenge for the television service providers who need to employ networking technologies to monitor specific Quality of Service (QoS) parameters such as packet loss rate, jitter and delay, to ensure an acceptable level of quality. However, recent research has demonstrated that the quality experienced by the end-user does not correlate to the QoS parameters employed by most service providers. This paper investigates the correlation between the QoS parameters and the quality perceived by the end. user. These results indicate that although the QoS parameters may sometimes achieve high correlation with respect to the quality perceived by the viewer, they still have large variances. This suggests that the QoS parameters are not enough to quantify the subjective quality with a high level of confidence. This work further compares a number of existing objective video quality metrics. The results presented in this paper show that the Full-Reference Motion based Video Integrity Evaluation (MOVIE) metric and the Spatio-Temporal Reduced Reference Entropic Differences (STRRED) metric achieve excellent correlation with the subjective scores. This research also demonstrates that the STRRED metric and its derivatives have several advantages over the MOVIE metric since less information needs to be transmitted and it is less computationally intensive.peer-reviewe

Hardiness Scripts: High‐Achieving African American Boys In A Chicago Charter School Navigating Community Violence And School

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/122441/1/jcop21791.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/122441/2/jcop21791_am.pd

Electrophysiological studies of the protozoan, Stentor coeruleus

Transmembrane potentials and membrane characteristics of Stentor coeruleus were studied by means of microelectrodes and standard electrophysiological techniques. Intracellular resting potentials were found to be variable and recordable for only a brief span of time owing to the encapsulation of the recording electrodes. During this brief time span of recorded resting potentials were anamolous in that they were generally of positive polarity. When an extended Stentor was stimulated to contract, a 10–60 mv negative-going transient response was recorded from intracellular electrodes. After the electrodes had been encapsulated, a diphasic transient response was observed when the penetrated animal contracted. Simultaneous recordings from intracellular and encapsulated electrodes showed that the diphasic and negative-going transient responses occurred simultaneously. Contractions of Stentor occurred in 7 to 8 msec following a 2 to 3 msec latent period after a suprathreshold shock. Records obtained by use of photomultiplier and microelectrodes indicated that the contractions began 1.8 msec after the onset of the diphasic response. Prepotentials were observed prior to mechanically stimulated responses.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/50072/1/480010402_ftp.pd