Gamma Research Articles

THE COMPARISON SOME MODELS (GAMMA, SLASHED QUASI-GAMMA, THREE PARAMETERS QUASI GAMMA, TWO PARAMETER GAMMA-EXPONENTIAL, AND MODIFIED LOG-LOGISTIC DISTRIBUTIONS) FOR DAILY TEMPERATURE DATA

With the increase in hot temperature events in recent years, there is growing interest in measuring the frequency of recurring temperature events. One of the basis for assessing the frequency of recurrence of temperature events is the probability distribution of temperature events, therefore temperature data is needed to produce statistical modeling, especially in determining the best probability distribution. The study intended to estimate the best-fitted probability model for the daily temperature at the Pekanbaru station in Indonesia from 2010 to 2020 using several statistical analyses. Five continuous probability distributions such as Gamma (GM), Slashed Quasi-Gamma (SQG), Three Parameters Quasi Gamma (TPQG), Two Parameter Gamma-Exponential (TPGE), and Modified Log-Logistic (MLL) distributions were fitted for these tasks using the maximum likelihood technique. To determine the model’s fit to the temperature data, several goodness-of-fit tests were applied, including the graphical methos test (density plot) and Numerical criteria method test (AIC, BIC, and -Log Likelihood). The GM and MLL distribution are found to be the best-fitted probability distribution based on goodness-of-fit tests for the daily temperature data at the Pekanbaru station

Gamma nearness hemirings

Gamma nearness hemirings

Pygamma-agreement: Gamma $\gamma$ measure for inter/intra-annotator agreement in Python

pygamma-agreement: Gamma $\gamma$ measure for inter/intra-annotator agreement in Python

Ge20Se80-xBix (x ≤ 12) chalcogenide glasses for infrared and gamma sensing applications: structural, optical and gamma attenuation aspects

Ge20Se80-xBix (x ≤ 12) chalcogenide glasses for infrared and gamma sensing applications: structural, optical and gamma attenuation aspects

On Connected 3-$$\gamma _{L}$$-Dot-Critical Graphs

On Connected 3-$$\gamma _{L}$$-Dot-Critical Graphs

Evaluation of the oxidative stress in liver of mice vaccinated with gamma radiation-attenuated Toxoplasma gondii

Evaluation of the oxidative stress in liver of mice vaccinated with gamma radiation-attenuated Toxoplasma gondii

Evaluation of Clinical Usefulness of Gamma Glutamyl Transferase as a Surrogate Marker for Metabolic Syndrome in Non Obese Adult Men

Evaluation of Clinical Usefulness of Gamma Glutamyl Transferase as a Surrogate Marker for Metabolic Syndrome in Non Obese Adult Men

The gamma Burr XII distributions: Theory and applications

The gamma Burr XII distributions: Theory and applications

MAGIC-f gel dosimeter reading: a comparison between an in-house optical CT and MRI imaging

Introduction: According to new developments in radiation therapy techniques, accurate ‎dose verification in three-dimensions has become more critical. Polymer gel dosimeters ‎‎(PGDs) are valuable tools to be used for this purpose. Nowadays, various imaging ‎modalities are employed to read out the gels. This study was aimed to investigate the ‎measured dose distribution recorded in MAGIC-f PGD with optical computed tomography ‎‎(OCT) by comparison with MRI. ‎Material and methods: We developed an in-house CCD based cone-beam OCT scanner. A ‎phantom of MAGIC-f PGD was used to measure a four-field box dose distribution. MRI and ‎OCT scanners were performed for gel readouts. Both measurement results were compared ‎by gamma index analysis with various acceptance criteria. The temporal stability of the gel ‎was also evaluated with the OCT readout system.‎Results: The percentage of isodose lines from two measured datasets agreed well together. ‎The pass rates were 99.02%, 96.8%, and 89.8% with 5%/5mm, 4%/4mm, and 3%/3mm ‎criteria, respectively, at the phantom's central axial slice. ‎Conclusion: The results indicate that the performance of this OCT system is almost the ‎same with acceptable discrepancies to the MRI as accepted standard readout modality, and ‎it can be used for three-dimensional dose verifications.‎

Gamma Ray Radiation Effects Emitted from Am-241 on Some Physiological Cases of Adult Rats

In this search we found the effect of 0.06.0.1 and 0.4 mGy / h gamma rays as radiation doses for 55 days at h /7 day irradiation in certain physiological cases as the sex ratio of adult rats. Major reductions in the total number of offspring were observed (p ˂0.05). female and male sex ratio when exposed to 0.06-0.4 mGy / h doses when compared to control group. Another argument, the effects of gamma radiation with the above dose levels and with the same mating showed substantial increases (p ˂0.05) in the number of female offspring and their sexual ratio. This rise is directly proportional to the increase in doses. This paper also revealed major differences in the sex ratio of male and female rats. The ratio of female offspring to gamma radiation was greater than the ratio of male offspring to control .The exposure of any source with frequency greater than GHz. and wave length in (10-10 meters) must therefore be avoided during gestations.

Optimization of nonlinear eigenvalues under measure or perimeter constraint

In this paper we recall some recent results about variational eigenvalues of the p-Laplacian, we show new applications and point out some open problems. We focus on the continuity properties of the eigenvalues under the gamma_p-convergence of capacitary measures, which are needed to prove existence results for the minimization of nonlinear eigenvalues in the class of p-quasi open sets contained in a box under a measure constraint. Finally, the new contribution of this paper is to show that these continuity results can be employed to prove existence of minimizers for nonlinear eigenvalues among measurable sets contained in a box and under a perimeter constraint.

Analysis of Shielding Effect on Gamma Radiation of Magnetic Aggregate Concrete Applied to Protective Facility

Analysis of Shielding Effect on Gamma Radiation of Magnetic Aggregate Concrete Applied to Protective Facility

Some Characterizations of $h$-Regular $\Gamma$-Hemiring in terms of Cubic $h$-Ideals

The aim of this paper is to study $h$-hemiregular and $h$-intra-hemiregular $\Gamma$-hemiring using the combined concept of cubic set and \textit{h}-ideals.We have defined two types of compositions of cubic sets and used these to obtain some characterizations of $h$-hemiregular and $h$-intra-hemiregular $\Gamma$-hemiring.

Relations between G-sets and their associate G^{hat}-sets

In this paper, we define and consider $G$-set on$Gamma$-semihypergroups and we obtain relations between $G$-setsand their associate $widehat{G}$-sets where $G$ is a$Gamma$-semihypergroup and $widehat{G}$ is an associatedsemihypergroup. Finally, we obtain the relation between direct limit of $widehat{G}$-sets from the direct limit defined on $G$-sets.

Some characterizations of regularity and intra-regularity of $\Gamma$-semigroups by means of quasi-ideals

Some characterizations of regularity and intra-regularity of $\Gamma$-semigroups by means of quasi-ideals

Amelioration of Myogenin, Bcl-2 expression and DNA damages in myocytes of Trichinella spiralis-infected mice after immunization with gamma radiation-attenuated larvae

Amelioration of Myogenin, Bcl-2 expression and DNA damages in myocytes of Trichinella spiralis-infected mice after immunization with gamma radiation-attenuated larvae

Single dose gamma irradiation induced angiogenesis in rat skin hair follicles

Single dose gamma irradiation induced angiogenesis in rat skin hair follicles

Induced Resistance to Striga hermonthica in Sorghum by Gamma Irradiation

Striga species affect the potential productivity of cereals in sub-Saharian Africa due to the lack of durable Striga-resistance in host crops. This study aimed at inducing the new source of resistance in sorghum using gamma irradiation. Dry seeds of three Sorghum varieties; Grinkan, ICV1049 and Sariaso14 were gamma-irradiated with 200 Gy, 300 Gy, 400 Gy and 500 Gy. Screening strategies involved a 2-year field and greenhouse experiments, where mutant Sorghum families, their parents and resistant control were artificially infected with Striga hermonthica seeds. Field screenings revealed induced genetic variability among them, forty families significantly reduced the number of emerged Striga plants or showed good Sorghum grain yield performance despite the infection by S. hermonthica ecotype from Burkina Faso. The induced putative resistant mutants were identified across the four applied gamma-irradiation doses. Greenhouse experiment confirmed Striga resistance in seven mutant Sorghum families leading to no emergence of Burkina’s S. hermonthica ecotype along with high resistance index (RI) and low Striga damage score. Among them, two mutants SA38M5 and IC47M5 withstood S. hermonthica ecotype from Sudan. The induced mutants will be evaluated for the release to farmers for commercial production. Further studies are ongoing on confirmed mutants to highlight their Striga resistance mechanisms and explore the potential of pyramiding different mechanisms to produce durable resistance to S. hermonthica in sorghum.

Characterizing Almost Quasi-\(\Gamma\)-ideals and Fuzzy Almost Quasi-\(\Gamma\)-ideals of \(\Gamma\)-semigroups

In this paper, we dene the concepts of almost quasi-\(\Gamma\)-ideals and almost quasi-\(\Gamma\)-ideals of a \(\Gamma\)-semigroup. Moreover, we give some relationship between almost quasi-\(\Gamma\)-ideals and fuzzy almost quasi-\(\Gamma\)-ideals of \(\Gamma\)-semigroups.

Null (Lightlike) $f$-Rectifying Curves in the Three Dimensional Minkowski Space $\mathbb{E}^3_1$

A rectifying curve $\gamma$ in the Euclidean $3$-space $\mathbb{E}^3$ is defined as a space curve whose position vector always lies in its rectifying plane (i.e., the plane spanned by the unit tangent vector field $T_\gamma$ and the unit binormal vector field $B_\gamma$ of the curve $\gamma$), and an $f$-rectifying curve $\gamma$ in the Euclidean $3$-space $\mathbb{E}^3$ is defined as a space curve whose $f$-position vector $\gamma_f$, defined by $\gamma_f(s) = \int f(s) d\gamma$, always lies in its rectifying plane, where $f$ is a nowhere vanishing real-valued integrable function in arc-length parameter $s$ of the curve $\gamma$. In this paper, we introduce the notion of $f$-rectifying curves which are null (lightlike) in the Minkowski $3$-space $\mathbb{E}^3_1$. Our main aim is to characterize and classify such null (lightlike) $f$-rectifying curves having spacelike or timelike rectifying plane in the Minkowski $3$-Space $\mathbb{E}^3_1$.