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Search Results: 1 - 10 of 33579 matches for " John Kaiser Calautit "
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About Nano Fusion and Dynamic Fusion
Florian Ion T. Petrescu and John Kaiser Calautit
American Journal of Applied Sciences , 2016, DOI: 10.3844/ajassp.2016.261.266
Abstract: Hot fusion is currently a difficult goal to accomplish due to the high temperatures required, which are difficult to achieve and also to be maintained. For these reason, it is much easier to try to achieve cold fusion, or a combined method. In this paper, the author will briefly present some original relationships for setting up a theoretical model for cold fusion. It will be determined the radius of a moving elementary particle and will be calculated the potential energy of the two adjacent particles. In addition, the necessary speed of the accelerated particles when they will collide to start cold fusion will be determined. The radius of an electron or a nucleus at rest is close to nano sizes. Because of this, static, the fusion working with nanoparticles. It was evaluated that dynamic nanoparticles dimensions are much smaller than when they are at rest.
About the Light Dimensions
Florian Ion T. Petrescu and John Kaiser Calautit
American Journal of Applied Sciences , 2016, DOI: 10.3844/ajassp.2016.321.325
Abstract: Light is one of the most fascinating something of all the time. This paper aims to develop a tool with which one can determine with great accuracy the dimensions of light. Basically was entered a new relationship through which one may determine the size of a photon depending on the wavelength of light. Instead wavelength of light can be used as variable the speed of light and its frequency. One could determine this new expressions using and the known equations: the total energy of a moving particle and the total energy of a photon, as Einstein bequeathed them to us. It has also been used (for calculating the new relationship) and the kinetic energy of the photon. The new expressions introduced by this paper may be useful in many applications related to light, lasers, etc. This paper is a check point for new “start points”.
Yield at Thermal Engines Internal Combustion
Relly Victoria V. Petrescu, Raffaella Aversa, Bilal Akash, Ronald B. Bucinell, Juan M. Corchado, Filippo Berto, MirMilad Mirsayar, John Kaiser Calautit, Antonio Apicella and Florian Ion T. Petrescu
American Journal of Engineering and Applied Sciences , 2017, DOI: 10.3844/ajeassp.2017.243.251
Abstract: The paper presents an algorithm to set the parameters of the dynamics of the classic mechanism the main of internal combustion. It shows the distribution of the forces (on the main mechanism of the engine) on engines with internal combustion. With these strong points and together with speeds of kinematic couplings shall be determined when the output of the engine heat shield. The method shall be applied separately for two distinct situations: When the engine is working on a compressor and in the system of the engine. For the two individual cases, two independent formulae are obtained for the efficiency of the engine. With these relations is then calculated with respect to the mechanical efficiency of the engine heat shield Otto, in four-stroke, for two-stroke engines and 4 stroke V. the final yield of the engine is obtained taking into account and thermal efficiency given by the Cycle Carnot program.
Forces at Internal Combustion Engines
Relly Victoria V. Petrescu, Raffaella Aversa, Bilal Akash, Ronald B. Bucinell, Juan M. Corchado, Filippo Berto, MirMilad Mirsayar, John Kaiser Calautit, Antonio Apicella and Florian Ion T. Petrescu
American Journal of Engineering and Applied Sciences , 2017, DOI: 10.3844/ajeassp.2017.382.393
Abstract: The paper presents an algorithm to set the parameters of the dynamics of the classic mechanism the main of internal combustion. It shows the distribution of the forces (on the main mechanism of the engine) on engines with internal combustion. Dynamic, the gears can be distributed in the same way as forces. Practically, in the dynamic regimes, the velocities have the same synchronization as forces. The method shall be applied separately for two distinct situations: When the engine is working on a compressor and in the system of the motor. For the two individual cases, two independent formulae are obtained for the dynamic cinematic forces (gearbox). The calculations shall be made for an engine with a single cylinder. The change of speed in the dynamics feels like a variation of the angular speed of the engine. It is more difficult to be taken into account (theoretically) effect on engine with several cylinders.
Batrachochytrium dendrobatidis Shows High Genetic Diversity and Ecological Niche Specificity among Haplotypes in the Maya Mountains of Belize
Kristine Kaiser, John Pollinger
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0032113
Abstract: The amphibian pathogen Batrachochytrium dendrobatidis (Bd) has been implicated in amphibian declines around the globe. Although it has been found in most countries in Central America, its presence has never been assessed in Belize. We set out to determine the range, prevalence, and diversity of Bd using quantitative PCR (qPCR) and sequencing of a portion of the 5.8 s and ITS1-2 regions. Swabs were collected from 524 amphibians of at least 26 species in the protected areas of the Maya Mountains of Belize. We sequenced a subset of 72 samples that had tested positive for Bd by qPCR at least once; 30 samples were verified as Bd. Eight unique Bd haplotypes were identified in the Maya Mountains, five of which were previously undescribed. We identified unique ecological niches for the two most broadly distributed haplotypes. Combined with data showing differing virulence shown in different strains in other studies, the 5.8 s - ITS1-2 region diversity found in this study suggests that there may be substantial differences among populations or haplotypes. Future work should focus on whether specific haplotypes for other genomic regions and possibly pathogenicity can be associated with haplotypes at this locus, as well as the integration of molecular tools with other ecological tools to elucidate the ecology and pathogenicity of Bd.
Power Spectrum Analysis of Three-Dimensional Redshift Surveys
Hume A. Feldman,Nick Kaiser,John A. Peacock
Physics , 1993, DOI: 10.1086/174036
Abstract: We develop a general method for power spectrum analysis of three dimensional redshift surveys. We present rigorous analytical estimates for the statistical uncertainty in the power and we are able to derive a rigorous optimal weighting scheme under the reasonable (and largely empirically verified) assumption that the long wavelength Fourier components are Gaussian distributed. We apply the formalism to the updated 1-in-6 QDOT IRAS redshift survey, and compare our results to data from other probes: APM angular correlations; the CfA and the Berkeley 1.2Jy IRAS redshift surveys. Our results bear out and further quantify the impression from e.g.\ counts-in-cells analysis that there is extra power on large scales as compared to the standard CDM model with $\Omega h\simeq 0.5$. We apply likelihood analysis using the CDM spectrum with $\Omega h$ as a free parameter as a phenomenological family of models; we find the best fitting parameters in redshift space and transform the results to real space. Finally, we calculate the distribution of the estimated long wavelength power. This agrees remarkably well with the exponential distribution expected for Gaussian fluctuations, even out to powers of ten times the mean. Our results thus reveal no trace of periodicity or other non-Gaussian behavior.
Impact of the Human Activities on the Local Climate and Environment of the Suez City in Egypt  [PDF]
Mona Fouad Kaiser
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.57063
Abstract:

Surface temperature and vegetation are the major land cover changes that significantly affect on the thermal environment. In the present study, remote sensing techniques were applied to identify the relationship between anthropogenic activities and the thermal environment in the North Gulf of Suez area. Results have indicated that the urbanization and agricultural expansion have been increased during the last 25 years. Although urban areas increased from 49 km2 in 1987 to 57 km2 in 2012, the urban heat island-range declined from very high and high, to moderate and low. An expansion in cultivated areas from 3 km2 in 1987 to 26 km2 in 2012 was responsible for the decline. The results of this study provided valuable information for understanding the local thermal changes that associate rapid urbanization and expansion of cultivated areas. Consequently, this work recommends that proper planning and management regimes for land use and cover changes associated with rapid urbanization will result in positive impacts on the local climate and environment.

Métacognition et formation des adultes
Arnim Kaiser,Ruth Kaiser
Questions Vives : Recherches en éducation , 2011, DOI: 10.4000/questionsvives.463
Abstract: Actuellement, il existe de nombreuses études empiriques abordant la relation entre la métacognition et les analyses théoriques correspondantes, relation concernant plus particulièrement l’apprentissage par auto-régulation. En revanche, trois aspects importants demeurent, jusqu’à présent, quelque peu exclus : les études intègrent rarement les adultes dans la population étudiée, elles se consacrent très rarement à la mise en uvre d’approches à orientation métacognitive dans un champ didactique concret et écartent en grande partie la question de savoir de quelles compétences doivent disposer les enseignants au sein de la formation continue si l’on veut que la métacognition devienne partie intégrante de leur conception de l’enseignement et de l’apprentissage. La présente contribution se propose donc de combler quelques unes de ces lacunes de manière ciblée en s’appuyant sur les résultats de différents projets de recherche dans lesquels la métacognition joue un r le essentiel. Invariably, thinking is concomitant with metacognition. Against the background of this thesis, the article pursues a number of theoretical as well as empirical questions which arise in this context. What, precisely, is to be understood under the term metacognition? Which are the constitutive elements of the definition? What does an explicit metacognitive orientation consist of? Using a primarily empirical approach, more in-depth questions are looked into: Among adult learners, what is the distribution of developed versus less developed metacognitive orientations in the random samples available to us? Which are the personality variables that favor the acquisition and explicit application of metacognitive accesses? Does a developed metacognitive attitude have an effect on learning success, and if so, what weight does it have? The last-mentioned questions were clarified in two research projects on organized continued education of several years duration. One was focused on the explicit imparting of metacognitive techniques, the other on the design and performance of the specific verification of learning success.
Dichotomy in the NRT Gene Families of Dicots and Grass Species
Darren Plett,John Toubia,Trevor Garnett,Mark Tester,Brent N. Kaiser,Ute Baumann
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0015289
Abstract: A large proportion of the nitrate (NO3?) acquired by plants from soil is actively transported via members of the NRT families of NO3? transporters. In Arabidopsis, the NRT1 family has eight functionally characterised members and predominantly comprises low-affinity transporters; the NRT2 family contains seven members which appear to be high-affinity transporters; and there are two NRT3 (NAR2) family members which are known to participate in high-affinity transport. A modified reciprocal best hit (RBH) approach was used to identify putative orthologues of the Arabidopsis NRT genes in the four fully sequenced grass genomes (maize, rice, sorghum, Brachypodium). We also included the poplar genome in our analysis to establish whether differences between Arabidopsis and the grasses may be generally applicable to monocots and dicots. Our analysis reveals fundamental differences between Arabidopsis and the grass species in the gene number and family structure of all three families of NRT transporters. All grass species possessed additional NRT1.1 orthologues and appear to lack NRT1.6/NRT1.7 orthologues. There is significant separation in the NRT2 phylogenetic tree between NRT2 genes from dicots and grass species. This indicates that determination of function of NRT2 genes in grass species will not be possible in cereals based simply on sequence homology to functionally characterised Arabidopsis NRT2 genes and that proper functional analysis will be required. Arabidopsis has a unique NRT3.2 gene which may be a fusion of the NRT3.1 and NRT3.2 genes present in all other species examined here. This work provides a framework for future analysis of NO3? transporters and NO3? transport in grass crop species.
Reproductive Hormone-Dependent and -Independent Contributions to Developmental Changes in Kisspeptin in GnRH-Deficient Hypogonadal Mice
John C. Gill,Oulu Wang,Shelley Kakar,Enzo Martinelli,Rona S. Carroll,Ursula B. Kaiser
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0011911
Abstract: Kisspeptin is a potent activator of GnRH-induced gonadotropin secretion and is a proposed central regulator of pubertal onset. In mice, there is a neuroanatomical separation of two discrete kisspeptin neuronal populations, which are sexually dimorphic and are believed to make distinct contributions to reproductive physiology. Within these kisspeptin neuron populations, Kiss1 expression is directly regulated by sex hormones, thereby confounding the roles of sex differences and early activational events that drive the establishment of kisspeptin neurons. In order to better understand sex steroid hormone-dependent and -independent effects on the maturation of kisspeptin neurons, hypogonadal (hpg) mice deficient in GnRH and its downstream effectors were used to determine changes in the developmental kisspeptin expression. In hpg mice, sex differences in Kiss1 mRNA levels and kisspeptin immunoreactivity, typically present at 30 days of age, were absent in the anteroventral periventricular nucleus (AVPV). Although immunoreactive kisspeptin increased from 10 to 30 days of age to levels intermediate between wild type (WT) females and males, corresponding increases in Kiss1 mRNA were not detected. In contrast, the hpg arcuate nucleus (ARC) demonstrated a 10-fold increase in Kiss1 mRNA between 10 and 30 days in both females and males, suggesting that the ARC is a significant center for sex steroid-independent pubertal kisspeptin expression. Interestingly, the normal positive feedback response of AVPV kisspeptin neurons to estrogen observed in WT mice was lost in hpg females, suggesting that exposure to reproductive hormones during development may contribute to the establishment of the ovulatory gonadotropin surge mechanism. Overall, these studies suggest that the onset of pubertal kisspeptin expression is not dependent on reproductive hormones, but that gonadal sex steroids critically shape the hypothalamic kisspeptin neuronal subpopulations to make distinct contributions to the activation and control of the reproductive hormone cascade at the time of puberty.
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