Spectral Action for Robertson-Walker metrics

We use the Euler-Maclaurin formula and the Feynman-Kac formula to extend our previous method of computation of the spectral action based on the Poisson summation formula. We show how to compute directly the spectral action for the general case of Robertson-Walker metrics. We check the terms of the expansion up to a_6 against the known universal formulas of Gilkey and compute the expansion up to a_{10} using our direct method

Massive Hermitian Gravity

Einstein-Strauss Hermitian gravity was recently formulated as a gauge theory where the tangent group is taken to be the pseudo-unitary group instead of the orthogonal group. A Higgs mechanism for massive gravity was also formulated. We generalize this construction to obtain massive Hermitian gravity with the use of a complex Higgs multiplet. We show that both the graviton and antisymmetric tensor acquire the same mass. At the linearized level, the theory is ghost free around Minkowski background and describes a massive graviton with five degrees of freedom and an antisymmetric field with three degrees of of freedom. We determine the strong coupling scales for these degrees of freedom and argue that the potential nonlinear ghosts, if they exist, have to decouple from the gravitational degrees of freedom in strong coupling regime.Comment: 10 page

Ultrasoft NLL Running of the Nonrelativistic O(v) QCD Quark Potential

Using the nonrelativistic effective field theory vNRQCD, we determine the contribution to the next-to-leading logarithmic (NLL) running of the effective quark-antiquark potential at order v (1/mk) from diagrams with one potential and two ultrasoft loops, v being the velocity of the quarks in the c.m. frame. The results are numerically important and complete the description of ultrasoft next-to-next-to-leading logarithmic (NNLL) order effects in heavy quark pair production and annihilation close to threshold.Comment: 25 pages, 7 figures, 3 tables; minor modifications, typos corrected, references added, footnote adde

Coopetition of software firms in Open source software ecosystems

Software firms participate in an ecosystem as a part of their innovation strategy to extend value creation beyond the firms boundary. Participation in an open and independent environment also implies the competition among firms with similar business models and targeted markets. Hence, firms need to consider potential opportunities and challenges upfront. This study explores how software firms interact with others in OSS ecosystems from a coopetition perspective. We performed a quantitative and qualitative analysis of three OSS projects. Finding shows that software firms emphasize the co-creation of common value and partly react to the potential competitiveness on OSS ecosystems. Six themes about coopetition were identified, including spanning gatekeepers, securing communication, open-core sourcing and filtering shared code. Our work contributes to software engineering research with a rich description of coopetition in OSS ecosystems. Moreover, we also come up with several implications for software firms in pursing a harmony participation in OSS ecosystems.Comment: This is the author's version of the work. Copyright owner's version can be accessed at https://link.springer.com/chapter/10.1007/978-3-319-69191-6_10, Coopetition of software firms in Open source software ecosystems, 8th ICSOB 2017, Essen, Germany (2017

Peningkatan Kemampuan Menulis Pantun dalam Pembelajaran Bahasa Indonesia Menggunakan Pendekatan Kontekstual pada Siswa Kelas 1v

Peningkatan Menulis Pantun Pembelajaran Bahasa Indonesia menggunakan pendekatan Kontektual Kelas IV SDN 19 Janjang Sanggau. Tujuan penelitian ini meningkatkan kemampuan membuat sampiran, rima, isi pantun dalam pembelajaran Bahasa Indonesia di kelas IV SDN 19 Janjang. Metode penelitian yang digunakan adalah deskriftif dengan pendekatan kualitatif. Dalam penelitian ini penulis menggunakan bentuk survey studies dengan jenisnya yaitu survey kelembagaan. Teknik analisis data ini dilaksanakan dengan menggunakan teknik interpretasi kualitatif. 1) Kemampuan membuat sampiran dikategorikan tinggi karena mengalami peningkatan sebesar 75% kategori tinggi (2) Kemampuan membuat rima mengalami peningkatan sebesar 67,5 % kategori cukup tinggi. (3)Kemampuan membuat isi mengalami peningkatan 70% dikategorikan tinggi hasil belajar siswa kelas IV SDN 19 Janjang Sanggau. Kata Kunci: Pantun, Pendekatan Kontekstual, Hasil Belajar. Improved Learning Indonesian Poem Writing using contextual approach Class IV SDN 19 Husks Sanggau. The purpose of this study enhance the ability to make sampiran, rhyme, rhymes contents in learning Indonesian in class IV SDN 19 Husks. The method used is descriptive qualitative approach. In this study the authors use survey form studies with the kind of institutional survey. Techniques of data analysis was conducted using qualitative interpretation techniques. 1) The ability to make high-sampiran categorized as an increase of 75% higher category (2) The ability to make rhyme increased by 67.5% category is quite high. (3) The ability to create content increased 70% categorized as high-yield learning fourth grade students of SDN 19 Husks Sanggau

Peningkatan Aktivitas Pembelajaran IPA dengan Menggunakan Metode Inkuiri pada Siswa Kelas VI Sdn 01

Improved Student Learning Activity Sciences Using Inquiry Methods in Civil Elementary School six grade in District of Sanggau. The methods used in this reseach is descriptive methods. The study was conducted over 3 cycles. The result obtained by the end of study 89% of physical activity, mental activity 86% and emotional activity 84%. While the percentage increase of difference from base line to 3 cycle are physic activity 65%, mental activity 77,34% and emotional activity 64%. From the data that has been obtained it can be concluded that a significant increase in each cycle

Urinary Albumin and Interleukin-8 Levels are not Good Indicators of Ongoing Vesicoureteral Reflux in Children who have no Active Urinary Tract Infection

Introduction: Vesicoureteral reflux (VUR) is a risk factor for kidney scarring, hypertension and declining renal function. Standard diagnostic methods are invasive and can cause exposure to radiation and urinary tract infections (UTIs). We aimed to investigate urine albumin and interleukin-8 levels as markers of ongoing VUR and renal damage in children without UTIs. Methods: Random urine samples were collected from 51 children, including 16 children with VUR (group A), 17 children with resolved VUR (group B) and 18 normal children (group C). The diagnosis of VUR or resolved VUR was confirmed by voiding cystourethrogram (VCUG) or direct radionuclide cystography (DRNC). All children had normal kidney function and had no evidence of UTI in the preceding three months. Random urine specimens were assayed for albumin (Alb), creatinine (Cr) and interleukin-8 (IL-8) and mean values were compared by one way ANOVA. Results: In groups A and B, the mean age at first UTI was 31.7 ± 2.4 and 27 ± 2.0 months respectively. In group A, the mean duration between VUR diagnosis and study entrance was 30 ± 9.1 months. In group B, the mean duration between VUR diagnosis and recovery was 19.9 ± 1.3 months. Overall, 76.4% of affected children had bilateral VUR and 41.2% had severe VUR. There were no significant differences in urinary Alb, IL-8, Alb/Cr and IL-8/Cr between the three groups. Conclusion: The current study does not support the hypothesis that microalbuminuria or urinary IL-8 are good indicators of ongoing VUR and renal injury in children. Keywords: Children; Interleukin-8; Microalbuminuria; Vesicoureteral Reflux

Peningkatan Minat Pembelajaran IPA Dengan Menggunakan Media Tepat Guna Kelas III Sdn No.15

Increasing Interest in Natural Sciences Learning Using effective Media Class 3 Public Elementary School Subdistrict 15 Seningkang Beduai Sanggau. The purpose of this research was to describe Wish increased attention, interest, willingness learning using effective Media on science lessons on grade 3 students of SDN 15 Seningkang. The method used descriptive method of research that while the shape of Institutional Survey. Subjects were Teachers and Students Class 3 Public Primary School 15 Seningkang, amounting to 8 people. Based on the analysis of the data obtained the following results: The study was conducted as many as 3 cycles, the results obtained are a student Interests include attention to the baseline average of 33.33% lower category, I cycle an average of 53.12 % category is quite high, the second cycle an average of 75% higher and cycle III category average of 93.75% is very high category. For interest at baseline averaged 31.25% lower category, the cycle I averaged 45.83 high category, the second cycle averaged 75% higher category and third cycle an average of 91.66% category very high while the willingness to baseline average of 33% lower category, I cycle an average of 43.75% category is quite high, the second cycle an average of 75% higher and cycle III category average of 90.62 % very high category. This suggests that the use of appropriate media to enhance students' interest in learning class III elementary school 15 Beduai, Sanggau

The association between habitual physical activity and cigarette cravings, and influence of smokers' characteristics in disadvantaged smokers not ready to quit.

RATIONALE: Habitual physical activity (PA) may have an important role in suppressing cigarette cravings. Systematic reviews show a strong acute effect of bouts of PA on reducing cigarette cravings, and it may be that these effects accumulate. OBJECTIVES: The aim was to investigate the relationship between habitual levels of PA and cigarette cravings in disadvantaged smokers not ready to quit by examining baseline cross-sectional data from the Exercise Assisted Reduction then Stop smoking study (EARS). METHODS: A series of linear regression models were applied to investigate the relationship between habitual PA and cigarette cravings and to identify additional predictors of cigarette cravings. The analyses were extended by including interaction terms with PA to identify potential moderators of the relationship between PA and cravings. RESULTS: A higher level of moderate intensity PA was associated with lower cravings (p = 0.033). Additional predictors were the mood and physical symptoms scale (p = 0.007; higher scores were associated with higher cravings) and alcohol consumption (p = 0.002; higher consumption was associated with lower cravings). In addition, a moderation effect of alcohol consumption was found; at higher levels of alcohol consumption, higher PA was significantly associated with higher cravings (p = 0.023). CONCLUSIONS: Overall, participation in regular PA is associated with reduced cigarette cravings; among those with heavy alcohol consumption, this participation is associated with higher cravings. These exploratory analyses suggest that further research into the relationship between PA, alcohol consumption and cigarette cravings is needed