Effects of Learning Guided Discovery Using Map Concept of Process Skills and Abilities Cognitive Science Physics Students SMA

The purpose of this study were to analyze science process skill and physics cognitive competence taught of students by guided discovery learning by using the concept maps or taught by conventional learning. The research type was quasi experiment with the two group pre-test and post test design, and the population of this study was all students class X semester II at senior high school 1 Pancur Batu. The research sample was taken by simple random sampling technique consist of two class, theyare the experimental class taught by the guided discovery learning by using the concept maps and the control class taught by the conventional learning. The data of this research was taken using observation sheet to see the science process skill of students and multiple choice test to see the students\u27 physics cognitive competence. The result showed that the average value of science process skills of students in the experimental class is 69.26, while in the control class 47.72 and cognitive competence taught of students\u27 physics class experiment was 81.33, while in the control class 75.50. The results of this research indicated that science process skill of students on and physics cognitive competence taught by the guided discovery learning by using the concept maps was better than taught by the conventional learning

Analisis Pengaruh Bangunan Groundsill 5 Dan 6 Terhadap Perubahan Dasar Sungai Cipamingkis Di Kabupaten Bogor

Sungai Cipamingkis mengalami degradasi yang cukup parah kurang lebih sepanjang 10 km, mulai dari Bendung Cipamingkis sampai dengan Jembatan Cibarusah. Salah satu akibatnya, terjadi keruntuhan Jembatan Jonggol-Cariu pada ruas sungai tersebut. Upaya penanganan yang dilakukan adalah dengan membangun Groundsill 5 dan Groundsill 6. Penelitian ini dilakukan untuk mengetahui pengaruh bangunan Groundsill 5 dan Groundsill 6 terhadap perubahan dasar Sungai Cipamingkis di sekitar Jembatan Jonggol-Cariu menggunakan HEC-RAS 2D. Simulasi pemodelan dilakukan dengan debit banjir rencana periode ulang 2 dan 100 tahun. Persamaan angkutan sedimen potensial yang digunakan adalah MPM-Toffaletti. Analisis model numerik dibagi menjadi 8 skenario pemodelan. Hasil analisis menunjukkan ruas Sungai Cipamingkis dari hulu Jembatan Jonggol-Cariu sampai dengan hilir Groundsill 6 berpotensi mengalami degradasi dasar sungai maksimum mencapai 3,3 m dan pada lokasi sekitar Jembatan Jonggol-Cariu mencapai 2,8 m. Bangunan Groundsill 5 dan Groundsill 6 dapat mengurangi potensi degradasi di sekitar Jembatan Jonggol-Cariu menjadi 0,24 m atau berkurang sebesar 91,1%. Tetapi di hilir bangunan Groundsill 6 potensi degradasi masih cukup tinggi sehingga masih diperlukan upaya penanganan degradasi di hilirnya untuk mengendalikan degradasi Sungai Cipamingkis secara keseluruhan

Manfaat Aromaterapi Lavender Terhadap Penurunan Insomnia Pada Lansia

Insomnia is the primary sleeping problem experienced mostly by elderly. The objective of this study was to examine the effect of lavender aromatherapy for insomnia reduction in elderly. This study used pre-experimental design, with 15 samples, recruited by using total sampling. The independent variable was aromatherapy and the dependent variable was insomnia. Data were collected by using structured interview with questionnaire and observation. Data were analyzed by using Wilcoxon Signed Rank Test with significance level of p≤0.05. The results showed that lavender aromatherapy given to elderly had beneficial effect on sleep quality and quantity of this age group. The sign and symptoms of insomnia become reduced with significance level of p=0.001.Lavender aromatherapy can be used as alternative intervention for overcoming insomnia in elderly

Qualitative Environmental Health Research: An Analysis of the Literature, 1991-2008

BACKGROUND. Recent articles have advocated for the use of qualitative methods in environmental health research. Qualitative research uses nonnumeric data to understand people's opinions, motives, understanding, and beliefs about events or phenomena. OBJECTIVE. In this analysis of the literature, I report the use of qualitative methods and data in the study of the relationship between environmental exposures and human health. DATA SOURCES. A primary search on ISI Web of Knowledge/Web of Science for peer-reviewed journal articles dated from 1991 through 2008 included the following three terms: qualitative, environ*, and health. Inclusion and exclusion criteria are described. DATA EXTRACTION. Searches resulted in 3,155 records. Data were extracted and findings of articles analyzed to determine where and by whom qualitative environmental health research is conducted and published, the types of methods and analyses used in qualitative studies of environmental health, and the types of information qualitative data contribute to environmental health. DATA SYNTHESIS. Ninety-one articles met inclusion criteria. These articles were published in 58 different journals, with a maximum of eight for a single journal. The results highlight a diversity of disciplines and techniques among researchers who used qualitative methods to study environmental health, with most studies relying on one-on-one interviews. Details of the analyses were absent from a large number of studies. Nearly all of the studies identified increased scientific understanding of lay perceptions of environmental health exposures. DISCUSSION AND CONCLUSIONS. Qualitative data are published in traditionally quantitative environmental health studies to a limited extent. However, this analysis demonstrates the potential of qualitative data to improve understanding of complex exposure pathways, including the influence of social factors on environmental health, and health outcomes.National Institute of Environmental Health Sciences (R25 ES012084, P42ES007381

The strengths and limitations of lecture-based training in the acquisition of ergonomics knowledge and skill

A common approach to training designers of workplaces to incorporate ergonomic considerations in their designs is a two- to five-day course based primarily on lectures by experts. A quiz, designed to test the acquisition of ergonomics factual knowledge and skill in judging the degree of physical stress in various job configurations, was given to 147 participants before and after four days of a five-day short course based principally on lectures by university faculty and staff. The major findings were as follows. First, there was a considerable lack of factual knowledge and a high level of error in judging the level of stress prior to the training. Second, the training increased participants' factual knowledge but had little impact on their ability to accurately judge levels of stress in slides depicting real work situations. Third, participants' knowledge and skills before the training and their improvement as a result of the training were unrelated to prior education or training in ergonomics or experience with repetitive, manual work. These results are interpreted in light of prior research on design of effective health and safety training.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/28698/1/0000518.pd

Multilayer film shields for the protection of PMT from constant magnetic field

This is the Published Version made available with the permission of the publisher.Photomultiplier tubes (PMTs) are widely used in physical experiments as well as in applied devices. PMTs are sensitive to magnetic field, so creation of effective magnetic shields for their protection is very important. In this paper, the results of measurements of shielding effectiveness of multilayer film magnetic shields on PMT-85 are presented. Shields were formed by alternating layers of a material with high magnetic permeability (Ni-Fe) and high electric conductivity—Cu. The maximum number of bilayers reached 45. It is shown that in weak magnetic fields up to 0.5 mT, the output signal amplitude from PMT-85 does not change for all used multilayer shields. In strong magnetic field of 2–4 mT, the output signal amplitude decrease with 10%–40% depending from the number of layers in the shield. The Pulse distribution of PMT-85 in magnetic field 0.2–4 mT slightly changed in the range 1.1%–1.3% for the case when the number of layers do not exceed 10 and practically did not change for a shield with 45 double layers

Multilayer film shields for the protection of PMT from constant magnetic field

This is the Published Version made available with the permission of the publisher.Photomultiplier tubes (PMTs) are widely used in physical experiments as well as in applied devices. PMTs are sensitive to magnetic field, so creation of effective magnetic shields for their protection is very important. In this paper, the results of measurements of shielding effectiveness of multilayer film magnetic shields on PMT-85 are presented. Shields were formed by alternating layers of a material with high magnetic permeability (Ni-Fe) and high electric conductivity—Cu. The maximum number of bilayers reached 45. It is shown that in weak magnetic fields up to 0.5 mT, the output signal amplitude from PMT-85 does not change for all used multilayer shields. In strong magnetic field of 2–4 mT, the output signal amplitude decrease with 10%–40% depending from the number of layers in the shield. The Pulse distribution of PMT-85 in magnetic field 0.2–4 mT slightly changed in the range 1.1%–1.3% for the case when the number of layers do not exceed 10 and practically did not change for a shield with 45 double layers

SiPM-based azimuthal position sensor in ANITA-IV Hi-Cal Antarctic balloon experiment

Hi-Cal (High-Altitude Calibration) is a balloon-borne experiment that will be launched in December, 2016 in Antarctica following ANITA-IV (Antarctic Impulsive Transient Antenna) and will generate a broad-band pulse over the frequency range expected from radiation induced by a cosmic ray shower. Here, we describe a device based on an array of silicon photomultipliers (SiPMs) for determination of the azimuthal position of Hi-Cal. The angular resolution of the device is about 3 degrees. Since at the float altitude of ~38 km the pressure will be ~0.5 mbar and temperature ~ − 20 °C, the equipment has been tested in a chamber over a range of corresponding pressures (0.5 ÷ 1000) mbar and temperatures (−40 ÷ +50) °C

COMPOSITE POLYMERIC MATERIALS BASED ON POLYCAPROLACTONE WITH ADDITION OF MODIFIED AMINOGRAPHENE FOR TISSUE ENGINEERING

In present work, we have been focused on the preparation of composite polymer materials representing films based on poly-ε-caprolactone (PCL) filled with aminographene modified with poly(glutamic acid) (PGlu). The further preparation of such composites as 3D-materails will allow their application as scaffolds for the bone tissue regeneration.The research was carried out using the equipment of the St. Petersburg State University Research Park: “Center for Chemical Analysis and Materials Research” and ”Interdisciplinary Center for Nanotechnology”