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991.
Tenascin is a large oligomeric glycoprotein of the extracellular matrix. Its location is innervated muscle tissues. We investigated immunohistologically, using two monoclonal antibodies (mah) against Tenascin, biopsied denervated human muscle of children and adults. Tenascin was present in the interstitial space among denervated muscle fibres. Accumulation of Tenascin in denervated adult muscle tissue was frequent, accumulation in denervated muscle tissue of children was sparse and weak. The two antibodies reacted correspondingly. Tenascin was not only found in the vicinity of atrophic muscle fibres, but also close to normally sized fibres, suggesting an early stage of denervation even before reduction of muscle fibre volume.  相似文献   
992.
Newborns with chronic problems needing continuous and special care even after discharge are not very frequent but represent a challenge for the caring team. The discharge program of the Neonatal Care ward of Trento hospital includes several steps: discharge meetings of teh neonatologist and the nurse responsible for the child, the head nurse, the psychologist and, when possible, the social worker; a training program for the parents; the coordination of communications and interventions of the home-care nurses and a detailed post-discharge planning. From 1995 a home-hospital program, as an alternative to the hospital admission was started. To describe how the team functions and stress the need of a close integration among the team members, the case of Ahmed is presented. This case faced the team with several challenges, because of the lack of parent's knowledge of the italian language and of the severity of the child's problems. Every care plan is developed building on newborn's needs and patients' resources. Data on the patients-problems dealt with from 1991 to 1995 and the interventions and resources needed are presented.  相似文献   
993.
994.
Visually perceived eye level (VPEL) was measured while subjects viewed two vertical lines which were either upright or pitched about the horizontal axis. In separate conditions, the display consisted of a relatively large pair of lines viewed at a distance of 1 m, or a display scaled to one third the dimensions and viewed at a distance of either 1 m or 33.3 cm. The small display viewed at 33.3 cm produced a retinal image the same size as that of the large display at 1 m. Pitch of all three displays top-toward and top-away from the observer caused upward and downward VPEL shifts, respectively. These effects were highly similar for the large display and the small display viewed at 33.3 cm (ie equal retinal size), but were significantly smaller for the small display viewed at 1 m. In a second experiment, perceived size of the three displays was measured and found to be highly accurate. The results of the two experiments indicate that the effect of optical pitch on VPEL depends on the retinal image size of stimuli rather than on perceived size.  相似文献   
995.
The present study was performed to investigate whether modes of voluntary contraction have an influence on an appearance of the premovement silent period (PSP) and components of the premovement cortical potentials. The EMG and the EEG were simultaneously recorded in an isometric ballistic contraction for exerting rapidly an elbow extension force and in a ballistic contraction for fast extending an elbow joint. The prime mover in the 2 contraction modes was the triceps brachii muscle. The frequency of the PSP was significantly higher in the isometric ballistic contraction than in the ballistic contraction (P < 0.01). The duration of the PSP was significantly longer in the isometric ballistic contraction than in the ballistic contraction (P < 0.01). In the isometric ballistic contraction, the 3 premovement cortical potentials (FNP, SNP and TNP) were identified. However, in the ballistic contraction the TNP did not appear. The PSP occurred in the phase of the TNP. The results obtained suggest that the PSP and the TNP are related to a more forceful contraction with faster rates of contraction, rather than only to speed of muscular contraction.  相似文献   
996.
We report anesthetic management of 6 cases (5 patients) with dilated cardiomyopathy for noncardiac surgery. The severity of their cardiomyopathy evaluated by left ventricular ejection fraction (LVEF) utilizing echocardiography was different in each case. The management of anesthesia was divided into 3 steps according to the LVEF. In cases with LVEF over 0.45, it was possible to perform regular anesthetic management by carefully selecting and controlling anesthetic agents. In 2 cases with LVEF from 0.2 to 0.4, anesthetic management was difficult. Some vasoactive drugs (e.g. dopamine) and intensive monitoring devices (e.g. pulmonary artery catheter) were needed to optimize anesthetic course. In one case with LVEF less than 0.2, we discussed much about surgical indication. Because of the malignant nature of the tumor, we agreed to proceed. IABP was inserted preoperatively and this proved to be life-saving during the procedure. It is important to have an inter-departmental discussion on these severely compromised cases.  相似文献   
997.
Antihypertensive effects of beni-koji were studied using 29 outpatients with mild hypertension in a placebo-controlled double-blind comparative fashion. After a 4-week vehicle (apple juice) run-in period, 13 patients were assigned to receive beni-koji aqueous extracts containing juice once daily (27 g of beni-koji eq. per day) for 8 weeks and 16 were assigned to vehicle. Two patients assigned to the vehicle group did not complete the study. In addition to casual blood pressure, 24-hr non-invasive ambulatory blood pressure (ABP) was monitored in 6 patients given the beni-koji drink and 5 patients given the vehicle. 1) In the beni-koji group, both casual systolic and diastolic pressure decreased significantly during the treatment period (from 150 +/- 10/96 +/- 6 mmHg to 140 +/- 10/89 +/- 10 mmHg, p < 0.01). The averages of the 24-hr blood pressure recorded in ABP (24-BP) also significantly decreased (from 141 +/- 17/95 +/- 13 mmHg to 132 +/- 21/86 +/- 10 mmHg, p < 0.05) when compared with those of the control period. Casual pressure normalized (less than 140/90 mmHg) in 4 patients who received beni-koji. Circadian variation of the blood pressure by ABP showed a significant decrease during the daytime. 2) In the vehicle group, casual systolic pressure did not change significantly (from 155 +/- 8 mmHg to 151 +/- 12 mmHg), but diastolic pressure decreased significantly (98 +/- 7 mmHg to 93 +/- 6 mmHg). Casual blood pressure did not normalize in any of the patients and 24-BP did not change significantly. 3) Summative evaluation of safety showed that no problems appeared in the beni-koji group. In conclusion, beni-koji appears to be an effective and safe food material for mild essential hypertension. The mechanism of the antihypertensive effect of beni-koji still remains to be investigated.  相似文献   
998.
  总被引:1,自引:0,他引:1  
Abstact Applications of boundary element methods (BEM) to the solution of static field problems in electrical engineering are considered in this paper. The choice of a suitable BEM formulation for electrostatics, steady current flow fields or magnetostatics is discussed from user's point of view. The dense BEM matrix is compressed with an enhanced fast multipole method (FMM) which combines well-known BEM techniques with the FMM approach. An adaptive grouping scheme for problem oriented meshes is presented along with a discussion on the influence of the mesh to the efficiency of the FMM. The computational costs of the FMM algorithm are analyzed for typical problems in practice. Finally, some electrostatic and magnetostatic numerical examples demonstrate the simple usability and the efficiency of the FMM. Communicated by: U. Langer  相似文献   
999.
    
The HyperLipid Advisory System combines a rule-based implementation of a clinical algorithm (the NIH Cholesterol Education Program Expert Panel recommendations) with a temporal representation that facilitates reasoning over time while maintaining efficient storage in a standard database. The temporal representation consists of objects that model point events such as visits and interval events such as specific therapies. These objects are combined into abstractions called phases, which correspond to higher level clinical concepts such as a diet or drug treatment. The time-oriented data objects are referenced in the rules using a custom-tailored operator query language. Between user sessions relevant clinical data are stored in external files. When the advisory system is reconsulted, this information is retrieved and mapped back into an object-oriented format. Use of a commercially available expert-system shell for such tasks allows algorithm implementation in standard personal computing environments.  相似文献   
1000.
The authors report a case of paraplegia caused by a lumbar intraspinal paracoccidioidomycosis (PCM) granuloma. Clinical neurological diagnosis of a compressive spinal cord lesion was confirmed by spinal magnetic resonance imaging (MRI). Patient was submitted to surgery with total excision of the lesion. Histopathological analysis confirmed the diagnosis of PCM. Patient is on sulfamethoxazole/trimethoprim combined with fluconazole and is experiencing positive neurological recovery.  相似文献   
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