Objective To investigate how target position and observer's heading affect spatial direction judgement (object locating judgement vs. orienting judgement). Methods Based on visual spatial scene and spatial memory, localization judgement and orientation judgement were used as tasks in four subjects-within experiments respectively. The data of response time were collected as the main dependent variables, and the total, 80 subjects (40 female), participated in the study. Results 1) 0? (front) and 180? (back) advantage effect, north advantage effect (expect for Exp.3), and cardinal direction-R90? position advantage effect were significant; 2) There was no significant difference on response time between Exp.1 and 2, and between Exp.3 and 4; no significant difference on time used for location was found between Exp.3 and 4, but each of them was longer than its corresponding response time for judgement task. Conclusion The effect modes of heading and target position are all consistent between the two types of spatial direction judgements, and the effect modes will not be changed according to differences in information medium and processing.

Objective: Investigate the characteristics of Internet Addiction Disorder and Sensation Seeking of middle school and high school students, and the relationship between addiction and sensation seeking. Methods: Internet Addiction Test Questionnaire and Zuckerman's Sensation Seeking Scale were administered to 307 students in a middle school and a high school in Beijing. Results: Sex and grade differences obviously existed in IAD. Boys and middle school students were easier to be addicted to Internet. The score of Boredom Susceptibility of sensation seeking was positively correlated to IAD. Conclusion: Certain relationship between IAD and sensation seeking did exist.

Purpose To study the clinicopathologic features, differential diagnosis, immunophenotype and treatment and prognosis of adult intratesticular rhabdomyosarcoma ( ITRMS) . Methods One case of adult ITRMS was analyzed by histology and immunohisto-chemistry, the date of treatment and prognosis through electronic medical record. The published relevant literatures were reviewed. Re-sults A 19-years old male patient was admitted to the hospital with a history of 2-months testicular painless enlargement. Testis ultra-sound examination and scrotal and abdominal CT revealed a mass in right testis. Macroscopic observation of the testis showed that a grey-white tumor. The tunica albuginea, epididymis and spermatic cord hadn’ t been invaded by the tumor. Microscopically, medium-size oval or round cells were arranged in sheets, and spindle-shaped, strap-like, large-circle cells were also presented. Few large cells had abundant granular eosinophilic cytoplasm with crossstriations under oil immersion objective. Immunohistochemically, the tumor cells were positive for vimentin, HHF35, desmin, MyoD1, Myogenin and h-Caldesmon protein, more than 50% neoplasm cells were positive. The rate of Ki-67 was 75%. Conclusions Adult ITRMS is rare. Histologically, embryonal rhabdomyosarcoma ( ERMS) is the most common type. They have highly invasive and poor prognosis. The accurate diagnosis depends on the combination of the histo-logic and immunohistochemical examination.

Female ; Humans ; Middle Aged ; Plasmacytoma ; Uterine Neoplasms

OBJECTIVETo evaluate the application of inferior vena cava filter (IVCF) in prevention of peri-operative pulmonary embolism (PE) in lower limb bone fracture patients with deep venous thrombosis (DVT).

METHODSFrom January 2003 to December 2012, 2 248 cases of lower limb and pelvic fractures with DVT were retrospectively analyzed. Before the procedure of IVCF implantation began, January 2003 to December 2007, there were 1 052 cases of acute trauma patients with DVT were classified as the group of early none-IVCF. The IVCF implantation was began since January 2008. From that time to December 2012, 712 cases of bone fractures with DVT received filter implantation, which were classified as IVCF group. The other 484 patients who had not undergone filter deployment were divided as group of late none-IVCF. The baseline conditions of the three groups were significantly different in addition to the ages between group of early none-IVCF and IVCF group. The incidences of PE and mortality of PE in each group were recorded and analyzed by χ(2) test.

RESULTSThere were totally 31 cases of symptomatic PE, among which 12 cases died. Totally 712 filters were deployed successfully without any major complications. The incidences of symptomatic PE were 0.14% (1/712), 2.19% (23/1 052) and 1.45% (7/484) in IVCF group, group of early none-IVCF and group of late none-IVCF, respectively. The mortality of PE were 0 (0/712), 0.86% (9/1 052) and 0.62% (3/484) in these groups. The incidence of symptomatic PE in IVCF group was significantly different from that in the group of early and late none-IVCF (χ(2) = 11.762, P = 0.001; χ(2) = 7.395, P = 0.007, respectively). The mortality of IVCF group was also significantly lower compared with the other two groups (χ(2) = 6.122, P = 0.013; χ(2) = 4.424, P = 0.035, respectively).

CONCLUSIONIVCF implantation effectively prevents symptomatic and fatal PE of patients of lower limb and pelvic fractures with DVT in the peri-operative period.

Adult ; Aged ; Female ; Humans ; Leg Injuries ; complications ; Lower Extremity ; Male ; Middle Aged ; Pulmonary Embolism ; etiology ; prevention & control ; Retrospective Studies ; Vena Cava Filters ; Venous Thrombosis ; complications

Objective:To investigate the effect of 24-hour continuous feeding by pump on gastrointestinal dysfunction and early growth of very low birth weight infants (VLBWI).Methods:Eighty VLBWI fed by tube in the Neonatal Intensive Care Unit (NICU) of Fuyang Women and Children′s Hospital, Anhui Province from January 2017 to June 2019, were retrospectively analyzed.They were randomly divided into the observation group and the control group according to the simple randomization method, 40 cases in each group.The observation group included 23 males and 17 females, with the gestational age of 28 + 2-33 + 5 weeks, and birth weight of 1.04-1.47 kg.The control group included 21 males and 19 females, with the gestational age of 28 + 1-33 + 5 weeks, and birth weight of 1.05 -1.47 kg.On the basis of giving both groups routine treatment, nursing, and non-nutritional sucking, the control group was treated with intermittent tube feeding and infusion of formula milk, while the observation group was microfed 24 h continuously by pump.The general situation, meconium discharge time, frequency of daily defecation, daily milk volume, gastrointestinal dysfunction, increase of body weight after birth, and neonatal behavioral neurological assessment (NBNA) at 40 weeks of gestational age were compared between the two groups.The increase of body mass after birth and the determination of neonatal behavioral neurological assessment (NBNA) in neonatal behavioral nerve at 40 weeks of gestational age were statistically analyzed by χ2 test and t test. Results:(1)There were no significant differences in sex, gestational age, birth weight, head circumference and body length between the 2 groups (all P>0.05). (2) Compared with the control group, the premature infants in the observation group had increased daily milk volume [(12.95±2.34) g/d vs.(10.08±2.08) g/d], shortened meconium discharge time [(3.90±0.84) d vs.(5.02±0.86) d], and higher frequency of daily defecation[(3.85±1.07) times/d vs.(3.00±0.81) times/d], shortened extubation time[(14.75±3.20) d vs.(16.80±3.08) d], shortened time of weight to loss to minimum[(3.38±0.86) d vs.(4.22±0.89) d], faster growth of the daily average body weight[(15.25±2.29) g/(kg·d) vs.(11.55±1.56) g/(kg·d)], shortened average hospitalization time [(35.58±8.29) d vs.(39.42±8.29) d], and faster increase of the head circumference[(35.23±2.40) cm vs.(33.74±1.63) cm]. The differences were statistically significant ( t=5.805, -5.907, 3.981, -2.918, -2.825, 3.890, -2.060, 3.233, all P<0.05). (3)The incidence of vomiting, abdominal distension, hypoglycemia and hyperbilirubinemia in the observation group was significantly lower than that in the control group ( χ2=5.000, 16.050, 5.165, 14.528, all P<0.05). (4) There was no significant difference in necrotizing enterocolitis (NEC) and dyspnea between the two groups ( χ2=1.438, 10.251, all P>0.05). The total scores of behavioral ability, passive muscle tension, active muscle tension, primitive reflex, general evaluation and NBNA in the observation group were higher than those in the control group, the difference was statistically significant ( t=5.026, 3.207, 3.000, 2.421, 3.150, 6.141, all P<0.05). Conclusions:Twenty-four-hour continuous feeding by pump combined with non-nutritious sucking can significantly reduce the occurrence of gastrointestinal dysfunction in VLBWI, promote the development and maturation of gastrointestinal function, improve the nutritional status, accelerate the physical growth, and thus facilitate the development of behavioral nerve.