The Software Engineering Laboratory (SEL) was established in 1976 for the purpose of studying and measuring software processes with the intent of identifying improvements that could be applied to the production of ground support software within the Flight Dynamics Division (FDD) at the National Aeronautics and Space Administration (NASA)/Goddard Space Flight Center (GSFC). The SEL has three mem...

In a latin square of order n, a k-plex is a selection of kn entries in which each row, column and symbol occurs k times. A 1-plex is also called a transversal. An indivisible k-plex is one that contains no c-plex for 0ocok. For orders n= 2f2,6g, existence of latin squares with a partition into 1-plexes was famously shown in 1960 by Bose, Shrikhande and Parker. A main result of this paper is tha...

Panomics has an aggressive program for the development of a broad range of assays for the Luminex platform and similar instruments based on the xMAP technology. Currently we have hundreds of RNA targets available in 3–30 plex assays using our using our QuantiGene Plex Reagent Systems, with new targets being added weekly. Our Procarta® Human, Mouse and Rat Assays can quantitatively measure cytok...

A k-plex is a selection of kn entries of a latin square of order n in which each row, column and symbol is represented precisely k times. A transversal of a latin square corresponds to the case k = 1. A k-plex is said to be indivisible if it contains no c-plex for any 0 < c < k. We prove that if n = 2km for integers k ≥ 2 and m ≥ 1 then there exists a latin square of order n composed of 2m disj...

El objetivo fue comparar los efectos de selenito sodio (SS) y Sel-Plex® (SP) en el consumo materia seca (CMS), ganancia diaria peso (GDP), conversión alimenticia (CA), rendimiento canales, Se suero, músculos, albúmina, globulinas corderos Pelibuey. Cincuenta animales (PV=23.0 ± 1.1 kg; 5 a 6 meses) se estratificaron aleatoriamente asignaron uno cinco tratamientos (n=10): 1) Dieta basal, C); 2) ...

Selenoprotein P (Sel P) is a selenium-rich glycoprotein believed to play a key role in selenium (Se) transport throughout the body. Development of a Sel P knockout mouse model has supported this notion and initial studies have indicated that selenium supply to various tissues is differentially affected by genetic deletion of Sel P. Se in the form of the amino acid, selenocysteine, is incorporat...

Mutations in the presenilin (PSEN) encoding genes (PSEN1 and PSEN2) occur in most early onset familial Alzheimer's Disease. Despite the identification of the involvement of PSEN in Alzheimer's Disease (AD) ∼20 years ago, the underlying role of PSEN in AD is not fully understood. To gain insight into the biological function of PSEN, we investigated the role of the PSEN homolog SEL-12 in Caenorha...

Retinal ischemic injuries play an important role in the pathogenesis of several eye disorders. Inflammation and oxidative stress are key players in ischemic injuries. Following retinal ischemia, vascular endothelial cells and leukocytes express several inflammatory adhesion receptors, such as selectins and cell adhesion molecules. P-selectin stimulates leukocyte recruitment to platelet aggregat...

A field population (SERD3) of Plutella xylostella L. collected in December 1994, and resistant to various insecticides, including Bacillus thuringiensis subsp. kurstaki (Btk) and B.t. subsp. aizawai (Bta), was selected with Btk (Btk-Sel) and Bta (Bta-Sel). Little evidence of cross-resistance was observed. Binding to midgut brush border membrane vesicles was examined for insecticidal crystal pro...