Occupational Safety and Health Program: Foundation of Technology Management in SUCs

Ergonomics and other technology to reduce risk or prevent accidents must be effectively used and managed for SUC to become competitive locally and in the region. The research evaluated the association of Occupational Safety, Health and Social Environment to the health condition of teachers of State Colleges and Universities (SUCs) in the Philippines as the basis for crafting the Occupation Safety and Health Program for SUCs. The descriptive-quantitative- correlational method was used in this study using survey questionnaires that were administered to 84 teachers across the three identified SUCs. Findings revealed a relationship between Occupational safety, level of occupational health, and social environment to the teachers' health status. Health and safety conditions included work environment, housekeeping, and health and medical services provided by the concerned institutions to their faculty. On the other hand, productivity consisted of outputs in instructions, research, community and extension services, and creative productions. The different occupational and non-occupational illnesses were taken into consideration. Afterward, provisions on occupational safety and health for faculty productivity were proposed by the researchers to help school administrators maintain a safe and healthful atmosphere in the academe, thereby increasing the productivity of the faculty

Voter models on weighted networks

We study the dynamics of the voter and Moran processes running on top of complex network substrates where each edge has a weight depending on the degree of the nodes it connects. For each elementary dynamical step the first node is chosen at random and the second is selected with probability proportional to the weight of the connecting edge. We present a heterogeneous mean-field approach allowing to identify conservation laws and to calculate exit probabilities along with consensus times. In the specific case when the weight is given by the product of nodes' degree raised to a power theta, we derive a rich phase-diagram, with the consensus time exhibiting various scaling laws depending on theta and on the exponent of the degree distribution gamma. Numerical simulations give very good agreement for small values of |theta|. An additional analytical treatment (heterogeneous pair approximation) improves the agreement with numerics, but the theoretical understanding of the behavior in the limit of large |theta| remains an open challenge.Comment: 21 double-spaced pages, 6 figure

Random walks and search in time-varying networks

The random walk process underlies the description of a large number of real world phenomena. Here we provide the study of random walk processes in time varying networks in the regime of time-scale mixing; i.e. when the network connectivity pattern and the random walk process dynamics are unfolding on the same time scale. We consider a model for time varying networks created from the activity potential of the nodes, and derive solutions of the asymptotic behavior of random walks and the mean first passage time in undirected and directed networks. Our findings show striking differences with respect to the well known results obtained in quenched and annealed networks, emphasizing the effects of dynamical connectivity patterns in the definition of proper strategies for search, retrieval and diffusion processes in time-varying network

Design, Testing and Evaluation of Mobile Corn Mill for Village-Level Operation in the Philippines

The efficiency and availability of corn mills operating in the Philippines play a vital role in achieving food self-sufficiency in the entire country.   Majority of operational corn mills are situated along the highway where three-phase electrical line is available. Current design of operational corn mills still utilizes emery stone for its degermination process, two-steel rollers for its milling process and oscillating sifter that all require huge amount of power. The purpose of this research was to develop a technically viable and financially feasible new type of mobile corn mill that can be used in the countryside particularly in the remote areas. The developed corn mill system is comprised of the degerminator, rotary mill, rotary grader and equipped with a pre-cleaner (destoner and winnower), two elevators and a suction blower.  It is powered by 60 HP, 4-cylinder diesel engine.   Performance test results revealed that the developed mobile corn mill has an input capacity of 940 - 1,100  kg/h with product recovery of 66-71 % and degerminator efficiency of 82-88 %.  Cost of milling is estimated at Php0.86 per kg output.  The estimated cost of the developed corn mill is Php850,000 per unit (US$1=Php50).  The developed corn mill technology can be used by farmer cooperatives and local entrepreneurs that will engage in custom-milling business and the processing of corn for food and animal feeds

Universality classes in directed sandpile models

We perform large scale numerical simulations of a directed version of the two-state stochastic sandpile model. Numerical results show that this stochastic model defines a new universality class with respect to the Abelian directed sandpile. The physical origin of the different critical behavior has to be ascribed to the presence of multiple topplings in the stochastic model. These results provide new insights onto the long debated question of universality in abelian and stochastic sandpiles.Comment: 5 pages, RevTex, includes 9 EPS figures. Minor english corrections. One reference adde

Diffusion-annihilation processes in complex networks

We present a detailed analytical study of the $A+A\to\emptyset$ diffusion-annihilation process in complex networks. By means of microscopic arguments, we derive a set of rate equations for the density of $A$ particles in vertices of a given degree, valid for any generic degree distribution, and which we solve for uncorrelated networks. For homogeneous networks (with bounded fluctuations), we recover the standard mean-field solution, i.e. a particle density decreasing as the inverse of time. For heterogeneous (scale-free networks) in the infinite network size limit, we obtain instead a density decreasing as a power-law, with an exponent depending on the degree distribution. We also analyze the role of finite size effects, showing that any finite scale-free network leads to the mean-field behavior, with a prefactor depending on the network size. We check our analytical predictions with extensive numerical simulations on homogeneous networks with Poisson degree distribution and scale-free networks with different degree exponents.Comment: 9 pages, 5 EPS figure

Diffusion-annihilation processes in complex networks

We present a detailed analytical study of the $A+A\to\emptyset$ diffusion-annihilation process in complex networks. By means of microscopic arguments, we derive a set of rate equations for the density of $A$ particles in vertices of a given degree, valid for any generic degree distribution, and which we solve for uncorrelated networks. For homogeneous networks (with bounded fluctuations), we recover the standard mean-field solution, i.e. a particle density decreasing as the inverse of time. For heterogeneous (scale-free networks) in the infinite network size limit, we obtain instead a density decreasing as a power-law, with an exponent depending on the degree distribution. We also analyze the role of finite size effects, showing that any finite scale-free network leads to the mean-field behavior, with a prefactor depending on the network size. We check our analytical predictions with extensive numerical simulations on homogeneous networks with Poisson degree distribution and scale-free networks with different degree exponents.Comment: 9 pages, 5 EPS figure

Corrections to scaling in the forest-fire model

We present a systematic study of corrections to scaling in the self-organized critical forest-fire model. The analysis of the steady-state condition for the density of trees allows us to pinpoint the presence of these corrections, which take the form of subdominant exponents modifying the standard finite-size scaling form. Applying an extended version of the moment analysis technique, we find the scaling region of the model and compute the first non-trivial corrections to scaling.Comment: RevTeX, 7 pages, 7 eps figure

Repeated Reading Technique : Solution On Students' English Reading Skill Problems

Membaca teks dalam bahasa Inggris sedikit berbeda dan lebih kompleks daripada dalam bahasa Indonesia. Bedanya tidak sedikit siswa yang mengalami banyak kesalahan saat membaca teks bahasa Inggris, bahkan mereka tidak percaya diri saat diminta membaca. Penelitian ini bertujuan untuk mendeskripsikan praktik yang baik dalam menerapkan teknik membaca berulang dalam mengatasi masalah keterampilan membaca bahasa Inggris. Penelitian ini menggunakan desain kualitatif dengan jenis analisis isi atau dokumen. Dokumen yang dianalisis adalah jurnal ilmiah yang membahas tentang teknik membaca berulang. Selain itu beberapa dokumentasi berupa foto menjadi bahan yang kemudian dianalisis dan diinterpretasikan untuk mencapai tujuan penelitian. Praktik yang baik dalam menerapkan teknik membaca berulang terbukti menjadi solusi alternatif yang baik dan mengatasi masalah dalam membaca teks bahasa Inggris dan menarik perhatian siswa. Banyak produk berupa jurnal nasional bahkan internasional yang membuktikan teknik ini juga dalam bidang membaca cepat. Penerapan teknik membaca berulang dan penerapannya membuat siswa merasa senang bahkan termotivasi untuk membaca teks bahasa Inggris. Siswa merasa lebih percaya diri dan termotivasi untuk meningkatkan kemampuan literasi membaca dalam bahasa Inggris, sehingga mendukung niat baik sekolah untuk keberhasilan sekolah itu sendiri