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匹配条件: “John Rafael M. Antalan” ,找到相关结果约436308条。
John Rafael M. Antalan
Journal of Global Research in Mathematical Archives , 2013,
Abstract: In this note we will propose a method on how to determine the nth numeric palindrome based on the result in [1] though maybe there are other methods available on finding it.
Numeric Palindromes in Primitive and Non-primitive Pythagorean Triples
John Rafael M. Antalan,Richard P. Tagle
Mathematics , 2015, DOI: 10.17654//JPANTAAug2015_021_030
Abstract: In this article we consider numeric palindromes as a component of a pythagorean triple. We first show that there are infinitely many non-primitive pythagorean triples that contains (i) a single numeric palindrome as a component, (ii) two numeric palindromes as a component and (iii) three numeric palindromes as a component. We then focus on numeric palindromes in primitive pythagorean triples. Open problem related to the topic was also given.
A Note on Generating Almost Pythagorean Triples
John Rafael M. Antalan,Mark D. Tomenes
Mathematics , 2015,
Abstract: In 1987, Orrin Frink introduced the concept of almost Pythagorean triples. He defined them as an ordered triple $(x,y,z)$ that satisfies the equation $x^2+y^2=z^2+1$ where $x,y$ and $z$ are positive integers. In his paper, he showed that there were infinitely many almost Pythagorean triples by giving a characterization which suggests a method on generating all of them. However, this method does not explicitly and readily give a particular almost Pythagorean triple. In this note, using basic algebraic operations, we extend his result by giving a characterization that explicitly and readily give a particular almost Pythagorean triple.
Short Communication: Effect of Timing of Introduction to Pasture Post Calving and Supplementation with Saccharomyces cerevisiae on Milk Fatty Acid Profiles in Early Lactation Dairy Cows  [PDF]
Karina Mary Pierce, Radwan M. Alibrahim, Rafael Alejandro Palladino, Stephen Joseph Whelan, Finbar John Mulligan
Food and Nutrition Sciences (FNS) , 2013, DOI: 10.4236/fns.2013.49A1008

There is increased public awareness of the effect of dietary fatty acid (FA) profile on human health. Therefore, when devising nutritional management strategies for dairy cows it is important to evaluate the effects of said strategies on the FA profile of the milk. This experiment investigates the effects of two early PP nutritional management strategies (NM); abrupt introduction to pasture (AP) or a total mixed ration for 21 d followed by a gradual introduction to pasture over 7 d (GP), with (Y) or without (C) live yeast (YS) on milk fatty acid (FA) profile. Forty multiparous dairy cows were assigned to one of four dietary treatments in a two (AP vs. GP) by two (Y vs. C) factorial, randomized block design. The experiment was conducted from d 1 to 70 PP. Pasture, TMR and concentrate samples were taken weekly to assess the chemical and FA composition. Milk yield was recorded daily and individual milk samples were collected weekly to determine milk FA composition. There was no interaction between NM strategy and YS supplementation on milk FA. Similarly, YS supplementation did not affect milk FA profile. However, GP had higher concentrations of C10 (P = 0.04), C12 (P = 0.01), C14 (P = 0.02) and medium chain FA (P = 0.02) vs. AP. Whereas AP had higher concentrations of the FA cis-9, C18:1 (P < 0.01), long chain FA (P = 0.1) and unsaturated FA (P = 0.01) and lower concentrations of saturated FA (P = 0.01) vs. GP. These results suggest that abruptly introducing the early lactation dairy cow to a pasture based diets positively alters the FA composition of the milk produced when compared to the milk from a dairy cow gradually introduced to pasture.

Growth of Gold-assisted Gallium Arsenide Nanowires on Silicon Substrates via Molecular Beam Epitaxy
Ramon M. delos Santos,Jasher John A. Iba?es,Joel G. Fernando,Rafael B. Jaculbia
Science Diliman , 2008,
Abstract: Gallium arsenide nanowires were grown on silicon (100) substrates by what is called the vapor-liquid-solid (VLS) growth mechanism using a molecular beam epitaxy (MBE) system. Good quality nanowires with surface density of approximately 108 nanowires per square centimeter were produced by utilizing gold nanoparticles, with density of 1011 nanoparticles per square centimeter, as catalysts for nanowire growth. X-ray diffraction measurements, scanning electron microscopy, transmission electron microscopy and Raman spectroscopy revealed that the nanowires are epitaxially grown on the silicon substrates, are oriented along the [111] direction and have cubic zincblende structure.
Proceedings of the 19th Workshop on Logic-based methods in Programming Environments (WLPE 2009)
Rafael Caballero,John Gallagher
Computer Science , 2010,
Abstract: This volume contains the papers presented at the 19th Workshop on Logic- based methods in Programming Environments (WLPE'09), which was held in Pasadena, USA, on July 14th, 2009. WLPE aims at providing an informal meeting for researchers working on logic-based methods and tools which support program development and analy- sis. This year, we have continued and consolidated the shift in focus from en- vironmental tools for logic programming to logic-based environmental tools for programming in general, so that this workshop can be possibly interesting for a wider scientific community. All the papers submitted to WLPE'09 have gone through a careful process of peer reviewing, with at least three reviews for each paper and a subsequent in-depth discussion in the Program Committee.
“Deconstructing” Scientific Research: A Practical and Scalable Pedagogical Tool to Provide Evidence-Based Science Instruction
Ira E. Clark,Rafael Romero-Calderón,John M. Olson,Leslie Jaworski,David Lopatto,Utpal Banerjee
PLOS Biology , 2012, DOI: 10.1371/journal.pbio.1000264
Prion Infected Meat-and-Bone Meal Is Still Infectious after Biodiesel Production
Cathrin E. Bruederle,Robert M. Hnasko,Thomas Kraemer,Rafael A. Garcia,Michael J. Haas,William N. Marmer,John Mark Carter
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0002969
Abstract: The epidemic of bovine spongiform encephalopathy (BSE) has led to a world-wide drop in the market for beef by-products, such as Meat-and-Bone Meal (MBM), a fat-containing but mainly proteinaceaous product traditionally used as an animal feed supplement. While normal rendering is insufficient, the production of biodiesel from MBM has been suggested to destroy infectivity from transmissible spongiform encephalopathies (TSEs). In addition to producing fuel, this method simultaneously generates a nutritious solid residue. In our study we produced biodiesel from MBM under defined conditions using a modified form of alkaline methanolysis. We evaluated the presence of prion in the three resulting phases of the biodiesel reaction (Biodiesel, Glycerol and Solid Residue) in vitro and in vivo. Analysis of the reaction products from 263K scrapie infected MBM led to no detectable immunoreactivity by Western Blot. Importantly, and in contrast to the biochemical results the solid MBM residue from the reaction retained infectivity when tested in an animal bioassay. Histochemical analysis of hamster brains inoculated with the solid residue showed typical spongiform degeneration and vacuolation. Re-inoculation of these brains into a new cohort of hamsters led to onset of clinical scrapie symptoms within 75 days, suggesting that the specific infectivity of the prion protein was not changed during the biodiesel process. The biodiesel reaction cannot be considered a viable prion decontamination method for MBM, although we observed increased survival time of hamsters and reduced infectivity greater than 6 log orders in the solid MBM residue. Furthermore, results from our study compare for the first time prion detection by Western Blot versus an infectivity bioassay for analysis of biodiesel reaction products. We could show that biochemical analysis alone is insufficient for detection of prion infectivity after a biodiesel process.
Revista Med , 2009,
Abstract: gout has been amply described from the times of galen and it continues to be a public health problem that causes important morbidity in the world population. the treatment of acute gout has not changed in the last years, but a current review and actualization of the medical literature is necessary since there are continuous flaws in the management of this illness, not only in the actual indication of specific drugs, but also in the attentive care required due to the potential development of side effects from the traditional medications used in the treatment.
A Parallelizable Implicit Evolution Scheme for Regge Calculus
John W. Barrett,Mark Galassi,Warner A. Miller,Rafael D. Sorkin,Philip A. Tuckey,Ruth M. Williams
Physics , 1994, DOI: 10.1007/BF02435787
Abstract: The role of Regge calculus as a tool for numerical relativity is discussed, and a parallelizable implicit evolution scheme described. Because of the structure of the Regge equations, it is possible to advance the vertices of a triangulated spacelike hypersurface in isolation, solving at each vertex a purely local system of implicit equations for the new edge-lengths involved. (In particular, equations of global ``elliptic-type'' do not arise.) Consequently, there exists a parallel evolution scheme which divides the vertices into families of non-adjacent elements and advances all the vertices of a family simultaneously. The relation between the structure of the equations of motion and the Bianchi identities is also considered. The method is illustrated by a preliminary application to a 600--cell Friedmann cosmology. The parallelizable evolution algorithm described in this paper should enable Regge calculus to be a viable discretization technique in numerical relativity.

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