Let $R$ be a commutative ring and $M$ be an $R$-module. In this paper, we investigate some properties of 2-absorbing submodules of $M$. It is shown that $N$ is a 2-absorbing submodule of $M$ if and only if whenever $IJLsubseteq N$ for some ideals $I,J$ of R and a submodule $L$ of $M$, then $ILsubseteq N$ or $JLsubseteq N$ or $IJsubseteq N:_RM$. Also, if $N$ is a 2-absorbing submodule of ...

We present the discovery and characterization of two sub-Neptunes in close orbits, as well a tentative outer planet similar size, orbiting TOI-1260 - low metallicity K6V dwarf star. Photometry from TESS yields radii $R_{\rm b} = 2.33 \pm 0.10$ $R_{\oplus}$ c} 2.82 0.15$ $R_{\oplus}$, periods 3.13 7.49 days for TOI-1260b TOI-1260c, respectively. combined data with series ground-based follow-up o...

Let B be a real 2-block of a finite group G. A defect couple of B is a certain pair (D, E) of 2-subgroups of G, such that D a defect group of B, and D ≤ E. The block B is principal if E = D; otherwise [E : D] = 2. We show that (D, E) determines which B-subpairs are real. The involution module of G arises from the conjugation action of G on its involutions. We outline how (D, E) influences the v...

Chronological changes of gonadotropin (FSH and LH) and testosterone concentrations in the serum were measured in vitamin E deficient rats to investigate the effects of vitamin E deficiency on the pituitary-gonadal function in rats. The receptor sites and association constant (Ka) for LH and the formation of cyclic AMP in the Leydig cells were also investigated. The results obtained in the prese...

BACKGROUND Tissue 10:4(n-6) and 22:6(n-3) status have been correlated with neonatal development and growth. Artificial formulas for neonates have been supplemented with long chain polyunsaturated fatty acids (LCP) from animal and marine sources which may enhance sensitivity of cellular membranes to oxidative damage. Diet-derived antioxidants like vitamin E play a key role in the protection of t...

TOI-561 is a galactic thick disk star hosting an ultra-short period (0.45 day orbit) planet with radius of 1.37 R$_{\oplus}$, making it one the most metal-poor ([Fe/H] = -0.41) and oldest ($\sim$10 Gyr) sites where Earth-sized has been found. We present new simultaneous radial velocity measurements (RVs) from Gemini-N/MAROON-X Keck/HIRES, which we combined literature RVs to derive mass M$_{b}$=...

BACKGROUND Exercise is beneficial to health, but during exercise the body generates reactive oxygen species (ROS) which are known to result in oxidative stress. The present study analysed the effects of vitamin E (Tri E®) on antioxidant enzymes; superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (Cat) activity and DNA damage in rats undergoing eight weeks exercise. METHODS Twe...

OBJECTIVES To create a 3-dimensional (3D) educational computer model of the larynx, to assess the feasibility of this learning module on a Web-based platform, and to obtain student feedback on the module. DESIGN Male and female adult cadaveric necks were scanned with microcomputed tomographic and magnetic resonance imaging scanners. Key structures were identified on each slice of the computed...

The advent of Electronic Learning (E-Learning) gives a significant impact in education environment. Students have more options in choosing ways of learning. Basically, the E-Learning has three modules, which are electronic notes, tutorial/quiz, and maintenance. And, the E-Learning developers mostly emphasize on electronic tutorial module more than others in making it automated in many ways and ...