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At least 1,153 records · Page 64Linked to original sources
PubMed1978

A progress report on six year's experience with a flexible, modular dental curriculum.

A flexible, modular curriculum, using self-instructional teaching packages, was implemented in 1972 with the first class of students at the University of Florida College of Dentistry. With only minor modifications in design, this program has been utilized continuously since that time. A reaction to the preconceived advantages and disadvantages of this system is presented. In general, the program has been well received, and is considered a feasible and appropriate approach to dental education.

Curriculum↗
PubMed1985

[Modular structure of the genes of phages-transposons of Pseudomonas aeruginosa].

The basic criterion to confirm the recombinational origin of bacteriophages belonging to the same phage family is revealing several different combinations of differentiated segments in phage genomes which determine specific functions (modules). The results of phage-to-phage comparison of several regions in genomes of closely related transposable phages of Pseudomonas aeruginosa D3112, B39, PH2, PH51, PH93, PH132 have supported the modular hypothesis for this group of phages.

Attachment Sites, Microbiological↗
PubMed1985

The Kotz modular prosthesis in massive osteo-articular resections for bone tumours: preliminary results in 27 cases.

The authors report 27 cases in which neoplasms of the proximal or distal femur were treated by resection and replacement with a Kotz modular prosthesis. In 25 cases this was not cemented but in the other 2 cases cement had to be used. After describing the prosthesis and presenting the case material, the authors discuss the advantages and limitations of this surgical technique and compare the results obtained with those reported in the literature.

Adolescent↗
PubMed1988

Resection of the proximal humerus and I.O.R. modular prosthesis in the treatment of metastatic lesions.

The authors report a series of 20 patients affected with metastatic lesions of the proximal humerus (19 cases) or scapula (one case) treated by intra-or extra-articular resection of the humerus and successive reconstruction with an I.O.R. type shoulder modular prosthesis. This method is indicated for the treatment of patients with extensive destruction of the epiphysis and cortical bone and limited invasion of the surrounding soft tissues. Prosthetic implant does not contraindicate the use of postoperative radiotherapy, and the cement used to anchor the endomedullary shaft contributes to the sterilization of any metastatic microfoces present by means of an intense esothermic polymerization reaction. The results obtained were satisfactory, with regression of pain and good functional recovery of the limb. There were no postoperative complications.

Adult↗
PubMed1985

Modular hand tiller system for joystick operation of powered wheelchairs.

A method has been developed for assembling a hand support tiller that mounts to the post of a joystick controller of an electrically powered wheelchair. The hand tiller can be custom-designed by the therapist to fit the size, shape, and position of the user's hand. This results in a functional hand grasp that is necessary for the safe operation of the powered wheelchair. The design of the modular hand tiller system consists of low-cost, commercially available plastic tubing and fittings. This allows for an efficient set-up, easy modification, and durability.

Humans↗
PubMed1979

Marmor modular knee in unicompartmental disease. Minimum four-year follow-up.

Fifty-six consecutive knees were operated on for single compartment disease using the Marmor modular knee with a minimum follow-up of four years. The information obtained indicates that single compartment replacement is valuable in restoring function and relieving pain in a high percentage of patients. There was no evidence of late degeneration of the successful results at the time of writing. No difference in the results obtained with medial or lateral compartment replacement has been noted. Degeneration of the compartment not operated on has not been a problem. Unicompartmental replacement is an excellent procedure in the elderly patient who has osteoarthritis of the knee with varus or valgus deformity.

Aged↗
PubMed1979

A modular computer system for radiologists.

A computer system was developed for two private radiology offices, consisting of six modular components, a history file, registration file, assisted reporting module, appointment management module, accounting module and statistical module. Effectiveness and efficiency of patient care have been increased substantially.

Computers↗
PubMed1984

The Arizona program: development of a modular, interactive anesthesia delivery system.

Research by the Advanced Biotechnology Group, Department of Anesthesiology, the University of Arizona, has led to the development of many of the physical and theoretic elements necessary to the creation of a new automated anesthesia delivery system. Recognizing the obligation to provide means of the highest reliability and safety for anesthesia delivery, this group is endeavoring to bring together a compact, integrated modular system of the greatest utility to the practicing anesthesiologist.

Anesthesia, Inhalation↗
PubMed1984

[Modular organization of callosal neurons in the sensomotor area of the cerebral cortex in the rabbit].

The density of distribution of callosal neurons in rabbit sensorimotor cortex was studied by means of horseradish peroxidase injection into the homotopic cortical area. The irregularity of density was evaluated visually and/or computed. Labelled callosal units were mostly small and medium-size pyramidal cells located primarily in layer III-IV and more rarely in layers V and VI. Layer III-IV revealed different patterns of labelled units grouping: in pairs, in 5-8 vertically situated cells, in clusters 120-200 micron wide, separated by areas with decreased density. The obtained results confirm previously made conclusion based on electrophysiological studies about the modular organization of callosal connections in sensorimotor cortex of rabbits.

Animals↗
PubMed1983

[Modular system for the total replacement of the femur--Endo-model].

Total femur replacement may offer a useful solution in cases of severe trauma or neoplasia and in revision arthroplasty after failed total joint replacement when gross losses of bone have resulted in an unloadable femur and all other methods of treatment would fail to provide the patient with a stable leg. Until recently, total femur components were custom-made, but now we have a comprehensive modular total femur implant available reducing problems of preoperative preparation and simplifying the manufacture of custom-made designs. The new device can be shaped and adapted to the conditions encountered at the time of operation. The "push-through" type of prosthesis can be mounted step by step and converted into a total femur replacement with either a conventional head or a saddle at the proximal end and a total axial rotating knee prosthesis at the distal end. Elongation of the entire system is feasible.

Adult↗
PubMed1982

Clinical and radiographic evaluation of modular knee replacement. A review of 95 cases.

Ninety-five modular total knee replacements, 54 of them unicompartmental, have been reviewed. The average follow-up was three years. The major indication for operation was pain. A precise reoperative radiographic evaluation and a technique for a positioning the components are described. This had led to a significant improvement in the clinical and radiographic results in 67 out of 95 knees which were operated on. The modifications concern the orientation of the tibial cut, the placing of the femoral components and the correction of axial deviation. The main causes of the 13% of failures in our series were either errors in positioning the components or a preoperative diagnosis of rheumatoid arthritis. Unicompartmental replacement gave similar results in both valgus and varus knees, and the morbidity was lower than in the biocompartmental replacements. The best results were obtained in osteoarthritic knees in elderly patients and in posttraumatic osteoarthritis.

Adult↗
PubMedDate not supplied

Modular design of microcomputer-based medical instruments.

A modular design approach is effective for developing compact microcomputer-based medical instruments. Each instrument consists of two modules: a microcomputer instrument module that provides data conversion and computing functions and a characteristic module that does analog signal conditioning and includes all interfaces to the environment. The five instruments summarized here are: (a) a portable, battery-operated arrhythmia monitor for ambulatory patients; (b) a physician's computer for remote telephone communication with the portable monitor; (c) a battery-powered arrhythmia monitor/recorder for the operating room; (d) a portable, battery-operated biofeedback device for speech therapy; and (e) a neuromuscular blockade monitor for the operating room.

Computers↗
PubMed1993

A modular learning environment for protein modeling.

We propose in this paper a modular learning environment for protein modeling. In this system, the protein modeling problem is tackled in two successive phases. First, partial structural informations are determined via numerical learning techniques. Then, in the second phase, the multiple available informations are combined in pattern matching searches via dynamic programming. It is shown on real problems that various protein structure predictions can be improved in this way, such as secondary structure prediction, alignment of weakly homologous protein sequences or protein model evaluations.

Amino Acid Sequence↗
PubMed1979

Discrete modular system for automation of radioimmunoassay of serum choriomammotropin.

We describe a discrete automated radioimmunoassay system for determining choriomammotropin (placental lactogen) in human serum. With the present system it can be measured in as many as 37 unknown sera (50 muL) and three quality-control sera, in duplicate, within 1.5 h. The time required for sample preparation, incubation (15 min), and separation of free and bound radioactivities (a 150 mL/L polyethylene glycol solution is superior to a twofold volume of absolute ethanol) is less than 45 min. The remaining time required is for counting and data processing. Intra-assay precision is 4.6% (CV). The modular approach endows the instrumentation with much flexibility, and consequently is suitable for automation of a wide range of assay protocols.

Autoanalysis↗
PubMed1994

[Osteosynthesis of proximal femoral fractures with the modular interlocking system of unreamed AO femoral intramedullary nail. Initial clinical results].

The unreamed femoral nail system (UFN) features highly versatile proximal interlocking options for the treatment of a wide range of femoral fracture patterns and combinations. Besides standard interlocking modes for diaphyseal fractures, special interlocking options for subtrochanteric fractures and ipsilateral neck/shaft fractures are available. Two aiming arms can be attached to the insertion handle of the nail in a modular fashion. The standard aiming arm is designed for transverse static or dynamic locking. The special aiming arm permits spiral blade, 130 degrees, and miss-a-nail interlocking. From August 1992 to July 1994, in 10 out of 55 UFN implantations the special interlocking options were used. In 9 subtrochanteric fractures the spiral blade interlocking and in one ipsilateral neck/shaft fracture the miss-a-nail cancellous screw interlocking was applied. ASIF type A fractures with closed soft tissue damage prevailed. Fracture healing was uneventful and no implant complications or loss of reduction have been observed.

Adult↗
PubMed1994

[Modular construction (2 HS-1 SH), using Cotrel-Dubousset's universal instrumentation for comminuted fractures of the thoracolumbar junction. Comparison with various other constructions].

INTRODUCTION: The authors' objective was to study the anatomical and functional results of an original construct using the Cotrel-Dubousset instrumentation. MATERIAL AND METHODS: This construct is called "Modular construct" or "2 H.S.-1 S.H." fits up two vertebrae above the fracture and a single below. So if the fracture is situated on the L1 level, a supra-laminar hook is set up on each side of T11, and two pedicular screws in T12 (2 H.S.). In the same way, a pedicular screw and an infra-laminar hook are set up on each side of L2 (1.S.H.). Two transverse bars connect together the right and the left rod. This retrospective work is based on the study of 24 patients who had a Thoraco-lumbar burst fracture according to Denis'classification, who were operated on in our Department, and started again to walk without external contention. All the patients had a postero-lateral bone graft. There were no [corrected] anterior arthrodesis performed. The average follow up was 4 years. This series was compared with a concomitant series of miscellaneous constructs realized by the same operators with the C.D. instrumentation. RESULTS: The average regional kyphosis angles went from 16.9 degrees in pre-operative to 3.9 degrees in post-operative, and 8 degrees at the maximum follow up. The average vertebral kyphosis angles went from 18 degrees in pre-operative to 3.8 degrees in post-operative, and 6.3 degrees at the maximum follow up. The miscellaneous constructs had poorer results. There were two severe infections, one early the other late. DISCUSSION: These results compared with the literature show that the 2 H.S.-1 S.H. construct is a competitive one. We think that its mechanical qualities arise from adding systematically hooks at the ends of the construct. These hooks protect the screws during flexion and from pull out constraints.

Female↗
PubMed1994

Modular shoulder hemiarthroplasty for acute fractures. Surgical considerations.

Displaced fractures of the proximal humerus with concomitant comminution, interruption of vascular supply, and articular incongruity often require prosthetic replacement for successful treatment. In these difficult cases, the success of prosthetic replacement is dependent on proper patient selection, appropriate surgical technique, and a well-supervised postoperative rehabilitation program. Careful surgical technique should ensure proper placement of the humeral component at the correct height and version, and proper position and fixation of the displaced tuberosities. Supervised rehabilitation emphasizing early range of motion and strength when the tuberosities have healed improves results. The authors found that a modular design humeral implant allows for improved tensioning of the soft tissues and reconstruction of the tuberosities.

Arthroplasty↗
PubMed1994

Clinical evaluation of the modular electromechanical lock actuator for above-elbow prostheses: a preliminary report.

The Modular Electromechanical Lock Actuator (MELA) is the result of research and development (R&D) conducted under the direction of Dudley S. Childress, PhD, at the Northwestern University Prosthetics Research Laboratory (NUPRL), Chicago, Illinois. NUPRL, based upon their experience with prostheses for persons with high-level, upper-limb amputations, developed MELA to provide users with more efficient, versatile control and operation of their existing, cable-operated, positive-locking elbow and wrist components. The design of MELA has advanced to the point where it has the potential to improve the functionality and effectiveness of existing, body-powered or manually positioned above-elbow prostheses. This R&D effort has resulted in a pre-market model that is now ready for the national field evaluation part of the technology transfer process coordinated through the VA Rehabilitation Research and Development Service, Technology Transfer Section.

Activities of Daily Living↗