Peranan Media Sosial Instagram Dalam Interaksi Sosial Antar Siswa SMA Negeri I Manado (Studi Pada Jurusan IPA Angkatan 2012)

The role of social media instagram in social interactions among student of SMA Negeri 1 Manado (Studies on majors of scicence batch 2012). In the daily life of man cannot be separated from what is called communication. Communication is one of the important aspects of human life in this world. As social beings, human always want to connect with other human beings. He wants to know the surrounding environment, even want to know what's going on inside him. The curiosity, forcing the human need to communicate there are different types of communication one of them is mass communication. Mass communication is communication that requires media as intermediary one of the fastest spreading media is through online media or internet can connect people despite being in different parts of the earth one of them with social media there are many social media is circulating in the community, social media can be a means to indicate various things such as writing, image or video variety of ocial media including instagram among student of SMA Negeri 1 Manado the student is addicted to use social media as it can meet their needs so that social interaction between students among school affected.This study uses the theory uses of gratification and using qualitative research methods. Result: Students often use social media prior Instagram as a means of satidfication they will be entertainment, imitate each other and identify. Instagram posts can make them mutually sympathetic as well as instagram students assume their role in social interaction among school

Searching for network modules

When analyzing complex networks a key target is to uncover their modular structure, which means searching for a family of modules, namely node subsets spanning each a subnetwork more densely connected than the average. This work proposes a novel type of objective function for graph clustering, in the form of a multilinear polynomial whose coefficients are determined by network topology. It may be thought of as a potential function, to be maximized, taking its values on fuzzy clusterings or families of fuzzy subsets of nodes over which every node distributes a unit membership. When suitably parametrized, this potential is shown to attain its maximum when every node concentrates its all unit membership on some module. The output thus is a partition, while the original discrete optimization problem is turned into a continuous version allowing to conceive alternative search strategies. The instance of the problem being a pseudo-Boolean function assigning real-valued cluster scores to node subsets, modularity maximization is employed to exemplify a so-called quadratic form, in that the scores of singletons and pairs also fully determine the scores of larger clusters, while the resulting multilinear polynomial potential function has degree 2. After considering further quadratic instances, different from modularity and obtained by interpreting network topology in alternative manners, a greedy local-search strategy for the continuous framework is analytically compared with an existing greedy agglomerative procedure for the discrete case. Overlapping is finally discussed in terms of multiple runs, i.e. several local searches with different initializations.Comment: 10 page

The Development of the Mindfulness for Mental Fitness Program (Mind-Fit): An Online Mindfulness-Based Cognitive Group Therapy Program for Anxiety and Depression among Filipino College Students

Primarily, the study was conducted to test the efficacy of a newly developed Online Mindfulness-Based Cognitive Group Therapy Program for Anxiety and Depression among Filipino College Students known as Mind-Fit Program. Using One Group Pretest-Posttest Design, participants underwent 5-sessions (5 weeks with 45 minutes-2 hours duration per week). Measures such as Hopkin’s Symptom Checklist (HSCL), Patient Health Questionnaire (PHQ-9), Beck Anxiety Inventory (BAI) and Connor-Davidson Resilience Scale 10 were used as pre and post-test measures. Both quantitative and qualitative approaches were used to analyze the data. Results revealed on the quantitative part using paired sample t-test and Cohen’s d that there is a significant difference on the pre and post-test results on Hopkins Anxiety scale (t(5) = 17.419, p = .000) and Beck Anxiety measure (t(5) = 5.466, p = .005) with Cohen's d of 4.60 and 3.42 respectively.  Same pattern was found on the difference of pre and post test on depression measures. Statistically significant findings on both Hopkins Depression subscale (t(5) = 7.359, p = .002) and PHQ-9 measure (t(5) = 5.466, p = .005) with Cohen’s d of 4.28 and 2.13 respectively

The size of the proton and the deuteron

We have recently measured the 2S1/2⁼¹ − 2P3/2 ⁼ ² energy splitting in the muonic hydrogen atom μp to be 49881.88 (76) GHz. Using recent QED calculations of the fine-, hyperfine, QED and finite size contributions we obtain a root-mean-square proton charge radius of rp = 0.84184 (67) fm. This value is ten times more precise, but 5 standard deviations smaller, than the 2006 CODATA value of rp = 0.8768 (69) fm. The source of this discrepancy is unknown. Using the precise measurements of the 1S-2S transition in regular hydrogen and deuterium and our value of rp we obtain improved values of the Rydberg constant, R∞ = 10973731.568160 (16) m⁻¹and the rms charge radius of the deuteron rd = 2.12809 (31) fm

Honey bees infer source location from the dances of returning foragers

Honeybees (Apis mellifera carnica) communicate the direction and distance to a food source by means of a waggle dance. We ask whether bees recruited by the dance use it only as a flying instruction, with the technical form of a polar vector, or also translate it into a location vector that enables them to set courses directed toward the food source from arbitrary locations within their familiar territory. The flights of recruits captured on exiting the hive and released at distant sites were tracked by radar. The recruits performed first a straight flight in approximately the compass direction indicated by the dance. However, this “vector” portion of their flights and the ensuing tortuous “search” portion were strongly and differentially affected by the release site. Searches were biased toward the true location of the food and away from the location specified by translating the origin for the danced polar vector to the release site. We conclude that by following the dance recruits get two messages, a polar flying instruction (bearing and range from the hive) and a location vector that enables them to approach the source from anywhere in their familiar territory. The dance communication is much richer than thought so far

Osteopontin is a hematopoietic stem cell niche component that negatively regulates stem cell pool size

Stem cells reside in a specialized niche that regulates their abundance and fate. Components of the niche have generally been defined in terms of cells and signaling pathways. We define a role for a matrix glycoprotein, osteopontin (OPN), as a constraining factor on hematopoietic stem cells within the bone marrow microenvironment. Osteoblasts that participate in the niche produce varying amounts of OPN in response to stimulation. Using studies that combine OPN-deficient mice and exogenous OPN, we demonstrate that OPN modifies primitive hematopoietic cell number and function in a stem cell–nonautonomous manner. The OPN-null microenvironment was sufficient to increase the number of stem cells associated with increased stromal Jagged1 and Angiopoietin-1 expression and reduced primitive hematopoietic cell apoptosis. The activation of the stem cell microenvironment with parathyroid hormone induced a superphysiologic increase in stem cells in the absence of OPN. Therefore, OPN is a negative regulatory element of the stem cell niche that limits the size of the stem cell pool and may provide a mechanism for restricting excess stem cell expansion under conditions of niche stimulation

The effect of web based depression interventions on self reported help seeking: randomised controlled trial [ISRCTN77824516]

BACKGROUND: To date, there has been very little work investigating behaviour changes induced by interventions that are designed to increase help seeking. The present paper examines the effects of two Internet depression websites on help seeking. METHODS: 414 individuals with elevated scores on a depression assessment scale were randomly allocated to a depression information website, a cognitive-behavioural skills training website (CBT) or an attention control condition. Reports of help seeking for specific treatments, from specific sources and for categories of treatments were assessed. RESULTS: Relative to the control, the depression information site was associated with decreases in seeking support from friends and family, the use of music and of everyday treatments and no increase in seeking evidence based interventions. The CBT site was associated with the report of help seeking for CBT, massage and exercise. CONCLUSION: Methods to encourage the use of evidence-based treatments need further research to determine whether the assistance sought is evidence based and whether there are unintended effects