No abstract available.
Pregnancy* ; Purpura*

BACKGROUND: Acromioclavicular (AC) stability is maintained through a complex combination of soft-tissue restraints that include coracoclavicular (CC), AC ligament and overlying muscles. Among these structures, the role of the CC ligament has continued to be studied because of its importance on shoulder kinematics, especially after AC injury. This study was designed to determine the geometric change of conoid and trapezoid ligaments and resulting stresses on these ligaments according to various scapular motions. METHODS: The scapuloclavicular (SC) complex was isolated from a fresh-frozen cadaver by removing all soft tissues except the AC and CC ligaments. The anatomically aligned SC complex was then scanned with a high-resolution computed tomography scanner into 0.6-mm slices. The Finite element model of the SC complex was obtained and used for calculating the stress on different parts of the CC ligaments with simulated movements of the scapula. RESULTS: Average stress on the conoid ligament during anterior tilt, internal rotation, and scapular protraction was higher, whereas the stress on the trapezoid ligament was more prominent during posterior tilt, external rotation, and retraction. CONCLUSIONS: We conclude that CC ligament plays an integral role in regulating horizontal SC motion as well as complex motions indicated by increased stress over the ligament with an incremental scapular position change. The conoid ligament is the key structure restraining scapular protraction that might occur in high-grade AC dislocation. Hence in CC ligament reconstructions involving only single bundle, every attempt must be made to reconstruct conoid part of CC ligament as anatomically as possible.
Biomechanical Phenomena ; Cadaver* ; Dislocations ; Ligaments* ; Muscles ; Scapula ; Shoulder

OBJECTIVE: Cartoons have been known to motivate learners and make learning process easier by combining verbal and visual effects. But they are mostly applied to motivate the less able learners, and have limits in delivering comprehensive information. Thus, more careful and scientific validation for the pros and cons of using cartoons for everyday use in various subjects is in need. METHODS: In this research, we used Electroencephalography(EEG) to compare cartoon learning and text learning by measuring four characteristic brainwaves including theta, alpha, sensory motor rhythms(SMR), and beta, from the left and right brain. The EEG signals acquired from 24 subjects are analyzed using the mean difference of the left and right brain and canonical correlation analysis. RESULTS: The theta brainwave of the left brain and right brain shows significant differences (p<0.05) from cartoon learning versus text learning in the theta brainwave while the other brain waves show similar patterns. CONCLUSION: Cartoon learning produced significantly stronger theta brainwaves than text learning implicating that cartoon learning reduces more focused attention, SMR brainwaves and beta brainwaves from the left brain explained cartoon learning and text learning process while alpha brainwaves explained those processes in the right brain.
Brain ; Brain Waves ; Electroencephalography ; Learning

No abstract available.

No abstract available.
Renal Replacement Therapy*

Renal tubular acidosis is a clinical state of systemic hyperchloremic acidosis resulting from impaired urine acidification. Medullary sponge kidney is a renal parenchymal malformation characterized by cystic dilatation of the collecting ducts. Although medullary sponge kidney is a congenital disease, it is rarely identified in childhood and is usually discovered in adulthood. Medullary sponge kidney patients may have defects in urinary acidification and concentration mechanism. We experienced a case of distal renal tubular acidosis associated with medullary sponge kidney. So, we report a case of distal renal tubular acidosis associated with medullary sponge kidney with a brief review of the related literature.
Acidosis ; Acidosis, Renal Tubular* ; Dilatation ; Humans ; Medullary Sponge Kidney*

Medicolegal autopsies are a vital tool for obtaining reliable injury mortality data. This study statistically analyzed the data obtained from medicolegal autopsies performed in Korea in 2014. A total of 5,324 deaths were analyzed by sex, age, manner of death, and cause of death. With respect to the manner of death, 56.3% were recorded as unnatural deaths, 38.4% were natural deaths, and 5.3% had unknown causes. Of the 2,998 unnatural deaths, 41.0% were determined to be accidental deaths; 28.1%, suicidal; 16.1%, homicidal; and 14.8%, undetermined. Of the total number of unnatural deaths, 38.8% were trauma-related, wherein falls accounted for 32.7%. Asphyxiation accounted for 16.3% of unnatural deaths; of these, the predominant cause was hanging (59.4%). In addition, 15.0% of the unnatural deaths were due to drowning; 14.8%, poisoning; 11.3%, thermal injuries; 2.5%, complications arising from medical procedures; and 0.4%, electrocution, starvation, or neglect. Among the 2,042 natural deaths, heart diseases accounted for 49.0% and vascular diseases accounted for 17.3%. Of the 170 deaths among children under the age of 10, 38.8% were recorded as unnatural deaths, 54.1% were natural deaths, and 7.1% had unknown causes.
Autopsy* ; Cause of Death ; Child ; Data Interpretation, Statistical ; Drowning ; Heart Diseases ; Humans ; Korea* ; Mortality ; Poisoning ; Starvation ; Vascular Diseases

No abstract available.
Gyeongsangbuk-do* ; Quality Control*

No abstract available.
Mitral Valve* ; Thrombosis*

The authors report two cases of complete decapitation due to hanging. The decapitated body of a 49-year-old man weighing 53 kg was found next to a motel, and the head was 1.2 m away from the body. A rope (length, 3.5 m; diameter, 1.0 cm; nylon rope with a running noose), from the rescue and descent device of the room, was on an exterior wall of the motel. Another decapitated body of a 50-year-old man weighing 74 kg was found floating on the river. The head was found the next day. A rope (length, 7.2 m; diameter, 1.0 cm; nylon rope with a running noose) was tied to a bridge located on the upper side of the river. In both cases, the neck had a sharply demarcated circumferential laceration, similar to that noted in cases of sharp force injury. However, the laceration was formed by Langer's lines, and internal examination revealed findings of overstretching injury and blunt force injury. These cases were determined to be those of complete decapitation due to hanging.
Decapitation* ; Head ; Humans ; Lacerations ; Middle Aged ; Neck ; Nylons ; Rivers ; Running ; Suicide