No abstract available.
Parturition* ; Seasons* ; Sex Characteristics*

This statistical analysis was made out of 2,259 clinical cases (9. 9%) of akin disorders in the aged group over 50 years of age, among from the total 22,931 cases of outpatients, from 1974 to 1978, at Department of Dermatology, Sung-Sim HospitaI. Sex difference of the patients-male, 1, 057 (46. 8%), female, 1, 202 (53. 2%)-was found statistically significant. (countinued...)
Dermatology ; Female ; Humans ; Outpatients ; Sex Characteristics ; Skin*

The palm prints are unique in each individual and permanent for a lifetime. The atd angle of palm is formed by triradii of palm prints. The aim of this study is to identify the reasons why males have smaller atd angles, even with larger palms than females have. This study was done on 379 individuals (males : 174 individuals, females : 205 individuals). Data were collected by measuring atd angles using a protractor, distance from triradii a to d, length from triradii t to the distal palmar crease (DPC), palm breadth at metacarpals and palm length perpendicular using digital callipers. The data were analyzed through the frequency, independent sample t-test, paired t-test, Pearson correlation analysis using SPSS win 14.0. This study showed that atd angles of 39.2 degrees in males are significantly smaller than those of females (40.5 degrees). Males' were wider than females' in palm breadth, palm length and distance from triradii a to d, however, there was no sexual difference in the length from triradii t to the DPC. In addition, the ratio of palm breadth to palm length was higher in males than in females, however, the ratio of the length from triradii t to the DPC to palm length, and the ratio of the distance from triradii a to d to palm breadth of males were lower than those of females. Especially, atd angles in males and females were more correlative with the ratio of the length from triradii t to the DPC to palm length. The results of this study suggest that the differences in the atd angles between males and females arise from the ratio of length from triradii t to the DPC to palm length and the ratio of distance from triradii a to d to palm breadth. In both of the cases, males exhibited lower ratios than females. Especially, the ratio of the length from triradii t to DPC to palm length affected more to the atd angle than any other ratios.
Female ; Humans ; Male ; Metacarpal Bones ; Sex Characteristics

The author measured the corneal curvature, its thickness and anterior chamber depth of the 107 normal Koreans (214 eyes) visited to the eye department. Ewha Womans University Hospital. The following results were obtained: 1. The average horizontal and vertical corneal curvature was 7.849 +/- 0.258mm and 7.727 +/- 0.251mm respectively. The average central corneal thickness was 0.506 +/- 0.021mm and anterior chamber depth was 2.943 +/- 0.27Imm. 2. There were no statistically significant differences between right and left eye values in corneal curvature and anterior chamber depth, but left eye values in central corneal thickness were significantiy thicker than right eye values(p<0.01). 3. The sex differences with larger male eye values in corneal curvature, central corneal thickness and anterior chamber depth were proved to be significant. 4. The central corneal thickness had a tendency to decrease in older age groups and the vertical corneal curvature was relatively flatter than horizontal curvature. The anterior chamber depth was significantly shallower in older age groups(p<0.001). 5. No correlations could be found for corneal curvature against central corneal thickness or anterior chamber depth, and central corneal thickness against anterior chamber depth, but there was very high correlation between horizontal and vertical corneal curvature(r=0.907, p<0.001).
Anterior Chamber* ; Female ; Humans ; Male ; Sex Characteristics

Illustrations in almost all textbooks and atlases of anatomy normally show that the zygomatic arch (ZA) and coronoid process (CP) of the mandible overlap vertically. Their topographic relationship is important for plastic surgeons in various situations, such as restorations of ZA fractures. The present study investigated the topographic relationship between the ZA and CP of the mandible in three-dimensional models of Korean human cadavers. The topographic relationship was classified into three types: overlapped, tangential, and separate. The overlapped type was the most common, but the three types showed similar incidences in three-dimensional models. There were no lateral or sex differences according to the three types. The incidence of both sides showing the same type was 70.1%. In conclusion, the predominance of illustrations in almost all textbooks and atlases showing the overlapped type is misleading, since the other two types - where the CP of the mandible does not overlap the ZA - are almost as common.
Cadaver ; Humans ; Incidence ; Mandible ; Sex Characteristics ; Zygoma

In this study, we investigated where the sex differences of object-location binding memory performance were influenced by the cognitive load. We used the fractal objects version of the ‘What was where?’ task to measure object memory, location memory and objection-location binding memory. Cognitive load was controlled by task difficulty presented two sessions: one session randomly displayed three or four fractal objects (Session 34) and the other session four or five objects (Session 45). The results showed that females outperformed males on object-location binding memory. Interestingly, even when the four object trials were compared between Session 34 and Session 45, in which we believed that the level of difficulty was similar while cognitive load varied, the swap error of males was significantly increased in Session 45 compared to females. In conclusion, there may be sex differences in object-location binding memory and the males could be more sensitive about the cognitive load than females.
Female ; Fractals ; Humans ; Male ; Memory* ; Sex Characteristics*

No abstract available.
Biomedical Research ; Research Design ; Sex Characteristics ; Sex Factors ; Oral Health

Animals ; Callithrix ; Sex Factors ; Vocalization, Animal ; Sex Characteristics

Mandibles and crania were measured with anthrophological methods on cephalometric radiogrphs of 241 Korean adults. It was tried to identify sex differences with a special attention to the mandibular flexure. The relationships between mandibular flexure and mandibular growth pattern, antegonial notch, and gonial angle were investigated. Most of measurements except gonial angle were larger in male than in female. However, the cranial base angle was larger in female than in male and the height of mandibular flexure was higher in female. Mandibular flexure tends to be deeper when gonial angle is small, mandibular ramus is long, and antegonial notch is deep. Mandibular body length becomes larger when SNB becomes larger. As mandibular plane angle becomes larger, so cranial base angle and gonial angle become larger and as mandibular plane angle does, so maximum cranial height and SNB become smaller. In conclusion, sex difference of mandibular flexure is important, however, sex determination accuracy using mandibular flexure is not accurate as previously reported.
Adult* ; Female ; Humans ; Male ; Mandible ; Sex Characteristics* ; Skull Base

This study was performed to determine whether there were retinal changes in Parkinson's disease. Photopic and scotopic Flash ERGs were conducted for 21 patients with Parkinson's disease and for 19 control subjects. Seventeen patients were medicated with anticholinergics and L-dopa containing drugs. Five findings were observed from the study. 1. There was no difference in implicit time of photopic and scotopic a-and b-waves between the control and the Parkinsonian groups (p(t)>0.05). 2. Amplitude of photopic b-wave was smaller in the Parkinsonian group than the control group (p(t)<0.05). 3. Amplitudes of photopic and scotopic a-and b-waves did not differ between the control and the medicated Parkinsonian groups (p(t)>0.05). 4. Amplitudes of photopic (p(t)<0.001) and scotopic (p(t)<0.01) b-wave were smaller in the nonmedicated Parkinsonian group than the control group. 5. Age and sex characteristics did not affect the results in either group. From the above findings, it is suggested that there is a retinal cell change responsible for b-wave generation in Parkinson's disease, and it is reversed by anti-Parkinsonian medication.
Cholinergic Antagonists ; Humans ; Levodopa ; Parkinson Disease ; Retinaldehyde ; Sex Characteristics