Abstract-The optimization of thermal column collimator has been studied which resulted epithermal neutron beam for in vivo and in vitro trials of Boron Neutron Capture Therapy (BNCT) at Kartini Research Reactor of 100 kW by means of Monte Carlo N-Particle Extended (MCNP-X) codes. The design criteria were based on recommendation from the International Atomic Energy Agency (IAEA). MCNP-X calculations indicated by using 5 cm thickness of Ni as collimator wall, 30 cm thickness of Al as moderator, 20 cm thickness of 60Ni as filter, 2 cm thickness of Bi as γ-ray shielding, 3 cm thickness of 6Li2CO3-polyethylene as beam delimiter, and for in vivo in vitro trials purpose, aperture was designed 8 cm radius size, an epitermal neutron beam with an intensity 1.13E+09 n.cm-2.s-1, fast neutron and γ-doses per epithermal neutron of 1.76E-13 Gy.cm2.n-1 and 1.45E-13Gy.cm2.n-1,minimum thermal neutron per epithermal neutron ratio of 0.008,and maximum directionality of 0.73, respectively could be produced. The results have passed all the IAEA's criteria.
Background: Absence of effective and efficient screening tool for assessment of nutritional status have lead to high incidence of malnutrition among hospitalized patients.Objective: To develope practical screening tool for assessing nutritional status of hospitalized patients.Method: A simple method of nutritional assessment, called The Simple Nutritional Assessment, was compared to albumin serum as the gold standard. This study involved 50 nurses and 50 hospitalized patients in Dr. Moewardi General Hospital, Surakarta.Result: There was significant concordance of nutritional status assessed by the Simple Nutritional Assessment and the level of albumin serum (k=0,92). Sensitivity, specificity, and likelihood ratio of the Simple Nutritional Assessment compared to serum albumin were 92%, 67–75%, and 3.8, respectively. Internal consistence of the Simple Nutritional ssessment is high (Alpha=0.80). Average time required for doing the assessment was only 5 minutes.Conclusion: The Simple Nutritional Assessment can be used for quick screening of nutritional status of hospitalized patients with high sensitivity and reliability.
This study aims to explore the implementation of vocational learning in the new normal era related to the content, assignment forms, class management, and describe teacher innovations and hope. The research was conducted using a quantitative descriptive approach with a research instrument is a questionnaire. The questionnaire was given to 46 respondents consisting of mechanical engineering vocational teachers from several regions in Indonesia. The questionnaire consists of two categories, namely statements with an option and statements with open answers. The findings of this study are based on two categories, namely theoretical and practical learning. The results reveal that in theory learning, teachers prefer to share material with students in various forms, including PDF, PPT, Video, and others (17.56%), assigning forms in summarizing material (25.19%), and with the full class (47.78%). In contrast, in practical learning, the teacher conducted learning with a system block (5.85%), gave assignments in the form of making projects or products (6.93%), and with half-class management combined with online classes (7.78%). Another finding is the innovation applied by teachers is developing technology-based learning materials and using online platforms. In the new era's learning situation, normal teachers expect a flexible curriculum, as well as standardized, effective, and efficient media, models, methods, and learning platforms. In the learning practice, the teacher expects practice videos and simulation applications that are expected to be by following the expected basic competencies and being equipped with learning practices with the application of health protocols and students' numbers.
Abstract. Quality management system program of in Vitro / in Vivo Test Facility of Boron Neutron Capture Therapy at Kartini Research Reactor. The quality manajement system program of in vitro / in vivo test facility of Boron Neutron Capture Therapy (BNCT) methode as quality assurance requirement for utilization of radial pearcing beamport of Kartini research have been done. Identification and managementof technical specification and parameters meassurement of to the radial piercing beamport have been determined for preparing in vitro / in vivo test facility. The parameters are epithermal neutron flux is9,8243E+05n cm -2 s -1 and thermal neutron flux is 3,0691E+06n cm -2 s -1 , radiation shielding of parafin,dimension and size of piercing radial and instrumentatin and control systemfor automatic transfer of in vitro / in vivo samplels have been documented. Management system of the documents for fullfil basic guidance to perform working job of in vitro / in vivo at the piercing radial beamport of Kartini Research Reactor in order purpose utilization of the reactor for safety worker of the radiation area, society and invironment beeing safely Keywords : in vitro / in vivo test facility, neutron flux, radiation shielding,
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