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La masticación tiene como objetivo la adecuada preparación de los alimentos para su deglución y digestión. Cualquier alteración en el sistema estomatognático puede deteriorar la masticación. El odontó- logo es el profesional responsable de mantener y/o restaurar la función masticatoria. La evaluación de la función masticatoria puede hacerse de forma subjetiva utilizando cuestionarios para medir la percepción del paciente sobre su capacidad masticatoria o de forma objetiva analizando la fuerza oclusal, la actividad electromiográfica de los músculos mas- ticadores, la trayectoria de la mandíbula al masticar o la capacidad de trituración de los alimentos. Estos métodos se utilizan en proyectos de investigación, pero en la clínica ¿evaluamos si existe alguna alteración al masticar y al finalizar el tratamiento si cumplimos con el objetivo de restaurar la función masticatoria? ¿Realmente nos preocupamos por mantener y/o restaurar la función masticatoria? Por lo general no, ni en los consultorios, ni en las clínicas universitarias. Es esencial que nos concienticemos de nuestra responsabilidad y para ello es necesario que se le dé mayor peso curricular a la función masticatoria y cómo evaluarla. Seamos realmente custodios de la función masticatoria de nuestros pacientes (AU)
The goal of chewing is to properly prepare food for swallowing and digestion. Any problem in the stomatognathic system can deteriorate chewing. The professional responsible of maintaining and/or restoring masticatory function is the dentist. Masticatory function can be evaluated subjectively through questionnaires to measure the patient's perception of his/her masticatory capacity or objectively analyzing occlusal force, the electromyographic activity of the masticatory muscles, the movements of the mandible during chewing or the individual's capacity to breakdown food. These methods are used in research projects but, do we examine if there is any problem during chewing and if we are achieving our goal of restoring masticatory function at the end of the treatment in our offices? Do we really focus on maintaining and/or restoring masticatory function? Not truly, not in our offices or university clinics. It is imperative that we acknowledge our responsibility but for that it is essential that masticatory function and how to evaluate it is given more weight in the curriculum. Let us be genuine guardians of the masticatory function of our patients (AU)
Subject(s)
Humans , Stomatognathic System , Mastication , Masticatory Muscles , Perception , Bite Force , Surveys and Questionnaires , Deglutition/physiologyABSTRACT
This study aimed to clarify the effects of watching forest videos on prefrontal cortex activity. We examined oxy-hemoglobin (oxy-Hb) levels in the prefrontal cortex using near infrared spectroscopy (NIRS) and measured the changes in relaxation level using the rating scale of emotion as defined in terms of relaxation (RE scale), and the free description data after watching the videos. We recruited 21 healthy female university students for this study. All subjects watched a forest video and an urban video in a random order; no significant differences were found in comparisons between the two conditions during and after watching the videos. Comparisons of oxy-Hb levels in the prefrontal cortex during and after watching the two videos showed a significant increase after watching the forest video. Significantly decreased scores of three RE scale items, i.e., “anxiety-relief,” “restrictive-free,” and “discomfort-comfort,” were observed with the urban video. The forest video significantly improved scores of the following items: “feeling high-stable,” “tense-relaxing,” “anxiety-relief,” “restrictive-free,” and “discomfort-comfort.” These results suggest that the forest video activates the left prefrontal cortex and subjectively enhances a relaxed feeling, after watching.
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Purpose: The purpose of this present study was to observe the morphological variations of glenoid process ofadult human scapulae by subjective evaluation, because morphologic variants of adult glenoid process play animportant role in various shoulder joint pathologies especially dislocations with fractures of the glenoid cavitywhich is also quite common.Materialsand Methods: Two hundred sixty adult dry scapulae (127 right & 133 left) from the osteology museumof department of Anatomy, belonging to Indian population of unknown sex & age were obtained for the morphologicpattern of glenoid cavity by subjective evaluation. We have examined the presence of notch in the glenoidprocess of each scapulae& according to the presence of notch, we evaluated the bones for the morphologicalclassification as pear; inverted comma & oval shaped glenoid process. Our observations were compared withother osteological studies performed on different other population groups.Results: Out of total 260 scapulae, 187 bones showed notch in the margin of the glenoid cavity.Most of the boneswithout a notch were termed as oval shaped (73 scapulae) glenoid & rest of the bones were of pear shapedvariety. Among the pear shaped glenoid, 113 scapulae showed pear shaped cavity with slight notch; 71 scapulaeshowed an inverted comma shaped glenoid. Not only the basic morphology, we have also reported some of thescapulae with special morphologic features like a very prominent infraglenoid tubercle; presence of foramen inthe glenoid cavity &highly special nodular glenoid cavity.Conclusions: Though glenoid cavities showed highly variable morphological pictures, but the clinicians shouldbe well versed with the normal appearance & anatomic variants of glenoid cavities on dry bones, so that they caninterpret its morphology on radiographs and MRI scans. Our results of this subjective evaluation may be of helpas baseline data for theclinicians especially for the orthopaedic surgeons for the diagnosis &treatment modalitiesof shoulder dislocations & fracture.
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@#This paper presents a design process of workstation with ergonomic features for University Kuala Lumpur MIDI Classroom. The workstation is expected to support body posture, with the aim to increase comfortability of a user usage for long periods in a class. Besides that, the workstation will ensure a conducive and responsive learning environment. Discomfort and an improper position can negatively affect overall health and productivity. A new design of workstation, which allows user to sit in ideal sitting position suggested by ergonomist and easy transition from one teaching mode to the next. The researcher has designed and developed a new workstation which has ideal ergonomic sitting working position and capable accommodate 50th percentile human size. These positions were used to evaluate the comfort of the workstation. Subjective evaluations, including comparison of the prototype and standard workstation setup, were carried out using human subjects and ergonomic principles. Result showed that the new workstation is much more comfortable, supporting the body in a balanced way. Users have the freedom to stretch and relax in different working positions before they feel any noticeable discomfort. As a result, it lets user sit for a longer period without strain, thus resulting in higher productivity and concentration in classroom.
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@#The postoperative evaluation of cleft lip is an important means to improve the operation method and the effect of the restoration. In recent years, the methods of cleft lip repair, such as Chinese western rotary propulsion, reconstruction of labial and nasal muscle tension band+trefoil flap, etc., have been developed. However, at present, there are still many secondary deformities, such as obvious scars and alar collapse. In this paper, in a review of the previous literature, the existing methods, advantages and disadvantages, and the application of the evaluation of the postoperative effect of cleft lip were reviewed. To date, there are many methods that can be used to evaluate the effect of cleft lip surgery. These research methods can be divided into subjective evaluation and objective evaluation, such as subjective evaluation, direct measurement, photo measurement, and three-dimensional scanning measurement. Among them, the subjective evaluation is simple, but the reliability is poor, and this method is suitable for all patients with cleft lip. The direct measurement has a low cost and is only suitable for one-dimensional information measurement, but the accuracy is poor, so it is difficult to determine the endpoints. The time of the photo measurement method is short, which can avoid tissue deformation, but it is easy to produce errors; this method is suitable for patients with cleft lip who can cooperate. The three-dimensional scanning measurement has a high accuracy, is time consuming and is a simple method but has a high cost and is suitable for areas with appropriate equipment conditions. Overall, the evaluation of the postoperative effect of cleft lip surgery should combine subjective evaluation with objective evaluation, dynamic evaluation with static evaluation, and utilize long-term follow-up to obtain comprehensive and accurate information and provide a reference for clinicians to carry out cleft lip surgery.
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Objective: To evaluate the noise characteristic of different reconstruction type CT image by using the noise power spectrum (NPS), and analyze the correlation between this results and subjective vision noise evaluation. Methods: QA water phantom of CT equipment was scanned and 8 common reconstruction algorithms were applied to dispose image. NPS peak value, the peak frequency and standard deviation (SD) were compared with the subjective evaluation measurements, such as granularity, contrast, sharpness and optical noise level, by using the correlation analysis. Results: Each reconstruction algorithm owned different peak value and peak frequency. Granularity negatively correlated with the peak frequency. A positive correlation was found between contrast and peak value. Sharpness was positively correlated with both peak value and peak frequency. All of the subjective evaluation measurements were correlated with SD. Conclusion: Comparing with SD, NPS can reflect both intensity and morphological feature of the noise and possess applicative potential as a more comprehensive evaluation index.
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Drivers’ posture is one of the factors that can contribute to driving discomfort. Subjective evaluation is needed in determining the driving discomfort problem. The purpose of this study is to examine the reliability of different driving postures that may lead to drivers’ discomfort. A total of thirty-four healthy Malaysian drivers were involved in this study. Respondents were required to sit on the driver’s seat with the required adjustments of three different postures and fill-in the given subjective evaluation form. The same procedure was repeated for each respondent after three days for purpose of conducting test retest evaluation. The reliability statistical analysis result shows the study was reliable and valid with a Cronbach’s alpha coefficient equal to 0.827. The comparison means that ANOVA analysis also shows significance difference between these three groups of postures for all measured parameters. In conclusion, the result from this study shows the subjective evaluation conducted is reliable and can be used for drivers’ posture discomfort study.
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Physical evaluations provide the basis for an objective and quantitative analysis of the image quality. Nonetheless, there are limitations in using physical evaluations to judge the utility of the image quality if the observer's subjectivity plays a key role despite its imprecise and variable nature. This study proposes a new method for objective and quantitative evaluation of image quality to compensate for the demerits of both physical and subjective image quality and combine the merits of them. The images of chest phantom were acquired from four digital radiography systems on clinic sites. The physical image quality was derived from an image analysis algorithm in terms of the contrast-to-noise ratio (CNR) of the low-contrast objects in three regions (lung, heart, and diaphragm) of a digital chest phantom radiograph. For image analysis, various image processing techniques were used such as segmentation, and registration, etc. The subjective image quality was assessed by the ability of the human observer to detect low-contrast objects. Fuzzy integral was used to integrate them. The findings of this study showed that the physical evaluation did not agree with the subjective evaluation. The system with the better performance in physical measurement showed the worse result in subjective evaluation compared to the other system. The proposed protocol is an integral evaluation method of image quality, which includes the properties of both physical and subjective measurement. It may be used as a useful tool in image evaluation of various modalities.
Subject(s)
Humans , Evaluation Studies as Topic , Heart , Radiographic Image Enhancement , ThoraxABSTRACT
Objective To establish a system to evaluate the mental workload on visual display interface in airplane cockpit after synthesizing three kinds of mental workload assessment techniques,i.e.main task measure method,physiology measure method and subjective evaluate method.Methods The evaluation indices of every kind of assessment techniques was defined,and the amount of each index through experiment and subjective inquiry was gained,weighted average was calculated and a quantification evaluation value of each kind of evaluation methods was got.At last,with weighted calculation of above three evaluation values,the evaluation value of mental workload on visual display interface in airplane cockpit was obtained.Results In M kinds of different designs of visual display interface in airplane cockpit,the synthetic evaluation value of one design was the smallest and the mental workload of this design was the smallest.The design of the smallest mental workload was chosen prior as the final scheme of visual display interface in airplane cockpit.Conclusion The evaluation system is combined with present main evaluation methods of mental workload and utilizes their advantages.The evaluating result can be quantified more directly and clearly.With this evaluation system,the mental workload can be evaluated during the design of visual display interface of airplane cockpit and the best scheme can be confirmed.
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Se conoce que la desnutrición es frecuente y tiene más riesgo de complicaciones, implica mayor tiempo de hospitalización y empeora el pronóstico. Se realizó este estudio para determinar la frecuencia de desnutrición en el hospital, la estadía hospitalaria e identificar algunas acciones que llevan a la desnutrición entre los pacientes ingresados. Se estudiaron 242 pacientes de ambos sexos, ingresados en todas las salas, a los cuales se les realizó una encuesta global subjetiva sobre el estado nutricional y otra encuesta donde se tomaron datos de la historia clínica, peso actual y talla reflejados al ingreso; albúmina y conteo total de linfocitos al inicio y evolutivamente. Se valoró la significación entre los análisis de laboratorio que se realizaron en los 2 momentos del estudio; en todas las pruebas se utilizó el nivel de significación 0,05. Se encontró el 39,3 % de desnutrición en el hospital. La desnutrición fue mayor (29,5 %) en los pacientes con estadía prolongada (15 d y más). En conclusión, la desnutrición hospitalaria se encontraba elevada y existieron prácticas indeseables que afectaron el estado nutricional de los pacientes ingresados; la desnutrición se incrementó en la medida que aumentó la estancia hospitalaria.-*/.
It is known that malnutrition is frequent and that it has more risks of complications, takes more time of hospitalization and worsens the prognosis. This study is conducted to determine the frequency of malnutrition at the hospital, the hospital stay and to identify some actions leading to malnutrition among the admitted patients. 242 patietns of both sexes admitted in all wards were studied. A global subjective survey on the nutritional status and another survey were done. Some data were taken from the medical history, as well as current weight and height at admission, albumin, and total count of lymphocites at the beginning and evolutively. The significance between the lab tests made at the two moments of the study was assessed. The significance level 0,05 was used in all tests. 39.3 % of malnutrition was found at the hospital. Malnutrition was higher (29.5 %) in patients with prolonged stay (15 days or more). It was concluded that hospital malnutrition was elevated and that there were undesirable practices that affected the nutritional status of the inpatients. Malnutrition increased as the hospital stay was longer.
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Objective:To explore the change of attentive characteristics and subjective evaluation of mental fatigue un-der the condition of driving simulation.Methods:16 healthy taxi drivers(all males) were involved in this research.The change of attentive characteristics and the self-rating scale for subjective fatigue symptoms were both recorded before and after six-hour driving simulation.Because of the own control design,the drivers' attentive characteristics and self-rating scales were measured again in their off days.Results:There was significant difference in the changes of attentive charac-teristics in the experimental group,but no significant difference in the control group.And there was no significant differ-ence of subjective evaluation either in the experimental group or control group.Conclusion:Under the condition of driv-ing simulation,the attentive characteristics of drivers were changed,say,they were impaired,even though they did not per-ceive the feelings of fatigue.