5,174,360 research outputs found

    Spatial Patterns Associating Low Birth Weight with Environmental and Behavioral Factors

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    Low birth weight (LBW) is a significant public health problem in the world. It was estimated globally by the World Health Organization (WHO) that prevalence of LBW was 15% of all births. In Murung Raya district LBW cases remain high. This paper aimed to identify and discuss the relationship between environmental risk factors with LBW in Murung Raya.A spatial analysis was conducted with 150 women as the total participantswho were recruited through the incidence data in 2013-2014. The questionnaires, medical records, and geographic data were measured by Stata software, ArcGis, SatScan, and Geoda. The study results indicated there was significant correlation between health behavior and environmental variables with the strength of external neighborhood effect across LBW risk factors. More intense clustering of high values (hot spots) was found through the spatial analysis showing that most of the cases were located near the defined buffer zone. This research demonstrates that the spatial pattern analysis provided greater statistical power to detect an effect that was not apparent in the previous epidemiology studies

    Patterns of Teaching-Learning Interaction in the EFL Classroom

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    The successfullness of teaching-learning process is highly influenced by the patterns of interactions appeared in the classroom activities. Through this case study, the purpose of this paper is to explore the patterns of interaction during teaching and learning proccess. Two accellerated classes were observed and recorded to gain the data. The findings revealed that the patterns of interaction emerged in the first class were group work, choral responses, closed-ended teacher questioning (IRF), individual work, student initiates-teacher answers, open-ended teacher questioning, and collaboration. Meanwhile, the patterns of interaction in the second class showed closed-ended teacher questioning (IRF), open-ended teacher questioning, choral responses, student initiates-teacher answers, group work, and individual work pattern. The patterns of interaction were produced from teacher and student(s) and/or student(s) and student(s) in relation to the teacher talk and the students talk categories used during learning activities. These patterns were produced constantly. They are to show that the teaching-learning process was not always dominated by the teacher. Most students actively participate as well in any classroom activity. Thus, these patterns absolutely increase the students talk and students' participation in the class. It is necessary for teachers to reorganize the active activities which might foster more interaction in the classroom

    Cephalometric Patterns on Javanese, Bataks and Chinese Students in Jakarta

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    In 2000 a cephalometric survey has been done on both genders of Javanese, Bataks and Chinese students at the University of Indonesia (UI), the Indonesian Christian University (UKI) and the Christian University of Jakarta (UKRIDA) with the aim to detect their cephalometric characteristics patterns and the degree of their secular changes with their ancestors. Cephalometric parameters were measured as follows: the maximal head length (glabellaopisthocranion), the maximal head breadth (euryon-euryon), the minimal forehead breadth (frontotemporalefrontotemporale), the morphological facial height (suborbitale-gnathion), the bizygomatic breadth (zygion-zygion) and the bi-gonion breadth (gonion gonion). In addition measurements were done on facial soft tissue factors such as the nasal height (suborbitale-subnasale) the nasal breadth (alare-alare), the ear length (superaurale-subaurale) and the ear breadth (preaurale-postaurale). The results were treated statistically using t test to obtain the degree of significance. It was determined that some cephalometric characteristics have undergone secular changes but both genders of Bataks, Javanese and Chinese students seemed to depict their retainment of their respective ancestors cephalometric characteristics, consequently their cephalometric characteristic differences were still detectable

    Patterns theory and geodesic automatic structure for a class of groups

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    We introduce a theory of "patterns" in order to study geodesics in a certain class of group presentations. Using patterns we show that there does not exist a geodesic automatic structure for certain group presentations, and that certain group presentations are almost convex.Comment: Appeared in 2003. I am putting all my past papers on arxi

    Meeting online or offline? Patterns and trends for co-resident couples in early 21st century Britain

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    Data from the 2010-12 National Survey of Sexual Attitudes and Lifestyles (NATSAL-3) are used to document trends and patterns in where co-resident couples in Britain first met, focusing specifically on the rapid rise of meeting online, which both echoes and differs from a corresponding US increase; in Britain, meeting online largely appears to have substituted for meetings in settings to which access is relatively unrestricted, e.g. pubs and public places. While meeting online appears widespread across British society, variations are identified and linked to ideas from the online dating and place of meeting literatures. Offline partner availability, and how well the processes within offline and online settings suit particular types of people, are interpreted as underpinning many of these variations. Perhaps surprisingly, meeting online does not appear class-related, and involves levels of socio-demographic homogamy that do not differ systematically from those for compositionally-heterogeneous offline settings

    Error Patterns

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    In coding theory the problem of decoding focuses on error vectors. In the simplest situation code words are (0,1)(0,1)-vectors, as are the received messages and the error vectors. Comparison of a received word with the code words yields a set of error vectors. In deciding on the original code word, usually the one for which the error vector has minimum Hamming weight is chosen. In this note some remarks are made on the problem of the elements 1 in the error vector, that may enable unique decoding, in case two or more code words have the same Hamming distance to the received message word, thus turning error detection into error correction. The essentially new aspect is that code words, message words and error vectors are put in one-one correspondence with graphs

    Possible Patterns

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    “There are no gaps in logical space,” David Lewis writes, giving voice to sentiment shared by many philosophers. But different natural ways of trying to make this sentiment precise turn out to conflict with one another. One is a *pattern* idea: “Any pattern of instantiation is metaphysically possible.” Another is a *cut and paste* idea: “For any objects in any worlds, there exists a world that contains any number of duplicates of all of those objects.” We use resources from model theory to show the inconsistency of certain packages of combinatorial principles and the consistency of others

    Patterns in the Sand: Mathematical Exploration of Chladni Patterns

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    Chladni Patterns are formed when sand settles at the nodes of two dimensional standing waves, excited on a metallic plate which is driven at a resonant frequency. By considering a two-dimensional rectangular membrane with fixed boundary and constant density as an idealized model of the metal plate, a formula for predicting the Chladni Patterns that will form at certain frequencies can be found. In addition to mathematically exploring these mysterious patterns, I have created my own “Chladni Patterns” in the lab
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