3,315 research outputs found

    Pengaruh Promosi Kesehatan Tentang Kehamilan Tidak Diinginkan Terhadap Tingkat Pengetahuan Dan Sikap Remaja Di Sma Sandika

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    Background: Adolescents at the age of 13-20 years begin to recognize the opposite sex and there is a desire to fulfill their sexual needs, so that it can cause unwanted pregnancy. The prevalence of unwanted pregnancies in the world in 2012 was 85%. So the need for health promotion in schools is necessary. Objective: To determine the effect of health promotion on unwanted pregnancy on the level of knowledge and attitudes of adolescents at Sandika High School. Method: This study used the one group pretest-posttest design with Pre Experimental Design technique, the number of samples was 84 respondents with the Cluster Random Sampling technique. Bivariate analysis uses the Wilcoxon Test. Results: The number of respondents was more than 17 years old 41 (48,8%), male gender 42 (50,0%) dan female 42 (50,0%) responden. Level of knowledge of adolescents before health promotion more knowledge level both 53 (63,1%) and after health promotion more the level of good knowledge as much as 73 (86,9%) respondents, more attitudes of adolescents before being given moderate attitude health promotion as many as 49 (58,3%) respondents and after being given health promotion more moderate attitudes as many as 64 (76,2 %) respondents. the influence of the level of knowledge before and after health promotion with a p value = 0.001, which means that there is an effect of health promotion about unwanted pregnancy on the level of knowledge of adolescents There are attitudinal influences before and after health promotion with p value = 0.001 which means there is an influence about unwanted pregnancy towards adolescent attitudes. Suggestion: Hold collaboration with health centers in improving the system of adolescent reproductive system healt

    Spin glasses on Bethe Lattices for large coordination number

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    We study spin glasses on random lattices with finite connectivity. In the infinite connectivity limit they reduce to the Sherrington Kirkpatrick model. In this paper we investigate the expansion around the high connectivity limit. Within the replica symmetry breaking scheme at two steps, we compute the free energy at the first order in the expansion in inverse powers of the average connectivity (z), both for the fixed connectivity and for the fluctuating connectivity random lattices. It is well known that the coefficient of the 1/z correction for the free energy is divergent at low temperatures if computed in the one step approximation. We find that this annoying divergence becomes much smaller if computed in the framework of the more accurate two steps breaking. Comparing the temperature dependance of the coefficients of this divergence in the replica symmetric, one step and two steps replica symmetry breaking, we conclude that this divergence is an artefact due to the use of a finite number of steps of replica symmetry breaking. The 1/z expansion is well defined also in the zero temperature limit.Comment: 17 pages and 6 figure

    Pola interaksi masyarakat desa dengan tenaga kesehatan pada masa Covid-19 ( studi kasus di Desa Jaluk, Kecamatan Ketol, Kabupaten Aceh Tengah)

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    Penelitian ini mengkaji pola interaksi masyarakat desa dengan tenaga kesehatan pada masa Covid-19. Penelitian ini dilaksanakan di Desa Jaluk, Kecamatan Ketol, Kabupaten Aceh Tengah. Penelitian ini menggunakan metode kualitatif dengan diskriptif analisis. Teori yang digunakan dalam penelitian ini adalah teori aksi yang dikembangkan oleh Max Weber. Hasil penelitian menunjukkan bahwa pola interaksi masyarakat terjalin dikarenakan tindakan aksi, pengalaman, pengetahuan, tindakan rasional, dan nilai dalam masyarakat desa. Pola interaksi yang terjalin antara masyarakat dan tenaga kesehatan yaitu: Interaksi dalam kegiatan penyuluhan, Interaksi dalam kerjasama penanggulangan covid-19, interaksi dengan prosedur prokes, kepercayaan terhadap tenaga kesehatan di desa, interaksi dalam kecurigaan dengan tenaga kesehatan. Sedangkan alasan masyarakat mengizinkan tenaga kesehatan kembali ke desa karena sifat kekeluargaan yang masih tinggi dikalangan masyarakat, kepercayaan terhadap tenaga kesehatan serta kebutuhan masyarakat kepada tenaga kesehatan.

    A minimal stochastic model for influenza evolution

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    We introduce and discuss a minimal individual-based model for influenza dynamics. The model takes into account the effects of specific immunization against viral strains, but also infectivity randomness and the presence of a short-lived strain transcending immunity recently suggested in the literature. We show by simulations that the resulting model exhibits substitution of viral strains along the years, but that their divergence remains bounded. We also show that dropping any of these features results in a drastically different behavior, leading either to the extinction of the disease, to the proliferation of the viral strains, or to their divergence

    Maximum entropy models capture melodic styles

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    We introduce a Maximum Entropy model able to capture the statistics of melodies in music. The model can be used to generate new melodies that emulate the style of the musical corpus which was used to train it. Instead of using the n−n-body interactions of (n−1)−(n-1)-order Markov models, traditionally used in automatic music generation, we use a k−k-nearest neighbour model with pairwise interactions only. In that way, we keep the number of parameters low and avoid over-fitting problems typical of Markov models. We show that long-range musical phrases don't need to be explicitly enforced using high-order Markov interactions, but can instead emerge from multiple, competing, pairwise interactions. We validate our Maximum Entropy model by contrasting how much the generated sequences capture the style of the original corpus without plagiarizing it. To this end we use a data-compression approach to discriminate the levels of borrowing and innovation featured by the artificial sequences. The results show that our modelling scheme outperforms both fixed-order and variable-order Markov models. This shows that, despite being based only on pairwise interactions, this Maximum Entropy scheme opens the possibility to generate musically sensible alterations of the original phrases, providing a way to generate innovation

    Dynamical correlations in the escape strategy of Influenza A virus

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    The evolutionary dynamics of human Influenza A virus presents a challenging theoretical problem. An extremely high mutation rate allows the virus to escape, at each epidemic season, the host immune protection elicited by previous infections. At the same time, at each given epidemic season a single quasi-species, that is a set of closely related strains, is observed. A non-trivial relation between the genetic (i.e., at the sequence level) and the antigenic (i.e., related to the host immune response) distances can shed light into this puzzle. In this paper we introduce a model in which, in accordance with experimental observations, a simple interaction rule based on spatial correlations among point mutations dynamically defines an immunity space in the space of sequences. We investigate the static and dynamic structure of this space and we discuss how it affects the dynamics of the virus-host interaction. Interestingly we observe a staggered time structure in the virus evolution as in the real Influenza evolutionary dynamics.Comment: 14 pages, 5 figures; main paper for the supplementary info in arXiv:1303.595

    Karel Čapek, ovvero: sui rimedi alla stupidità umana

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    Profilo generale dello scrittore ceco Karel Cape

    Una topografia della memoria: Praga e i suoi luoghi negli scritti autobiografici di alcuni emigrati russi

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    Analisi dell'immagine di Praga come risulta negli scritti dell'emigrazione russa post-bolscevica
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