Model representation in the PANCOR wall interference assessment code

An investigation into the aircraft model description requirements of a wall interference assessment and correction code known as PANCOR was conducted. The accuracy necessary in specifying various elements of the model description were defined. It was found that the specified lift coefficient is the most important model parameter in the wind tunnel simulation. An accurate specification of the model volume was also found to be important. Also developed was a partially automated technique for generating wing lift distributions that are required as input to PANCOR. An existing three dimensional transonic small disturbance code was modified to provide the necessary information. A group of auxiliary computer programs and procedures was developed to help generate the required input for PANCOR

Genetic Determinants of Increased Outcrossing in Caenorhabditis elegans Following Dauer Diapause

Mating strategies, whether sexual or asexual, confer unique costs and benefits to populations and species that facilitate evolutionary processes. In wild isolates of Caenorhabditis elegans, mating strategies are dependent on developmental history. Outcrossing levels significantly increase when both hermaphrodites and males have transiently passed through the stress-resistant dauer diapause stage (postdauers). However, the molecular mechanisms of how life history can alter mating strategies have not been systematically explored. Mating behaviors of C. elegans can be attributed, in part, to sex-specific responses to ascaroside pheromone components. For example, high concentrations of the pheromone ascr#3 results in a strong avoidance response in hermaphrodites, but a slight attraction in males. We have demonstrated previously that postdauer hermaphrodites exhibit a decreased avoidance of ascr#3, which is the result of the downregulation of the osm-9 TRPV channel gene in postdauer ADL neurons. Thus, we hypothesized that sex-specific altered detection and/or response to pheromone components in postdauer animals could contribute to their increased outcrossing phenotype. To test this hypothesis, we conducted mating assays using N2 Bristol and strains carrying mutations in daf-3/SMAD and mut-16/Mutator genes, which are required for the downregulation of osm-9 in postdauer hermaphrodite ADL neurons. First, we determined that the outcrossing level of N2 Bristol is primarily correlated with the developmental history of males, with a smaller effect due to hermaphrodites. Interestingly, postdauer males did not downregulate osm-9 in their ADL neurons, but instead exhibited an increased ability to detect mates via pheromone compared to control males. Additionally, daf-3 mutants exhibited loss of the increased outcrossing phenotype in postdauers, illustrating the requirement of the TGF-β pathway in both males and hermaphrodites for this phenotype. Furthermore, the mut-16 strain exhibited negligible outcrossing, and attempts to rescue the outcrossing phenotype resulted in sterility due to gross morphological defects in the germline. Together, our results suggest a model whereby mating strategy is under combinatorial control of TGF-β and RNAi pathways

Is it real?

The architecture of Doha, Qatar is defined by skins of glass. When the sun shines upon the layers of glass, it creates a shimmery reflective grid across the surface of the city. These reflections, while visually intriguing, conceal many private realities behind the surface. As a multidisciplinary artist, I attempt to maneuver in the space between the opacity of the facade and stories that lie behind. Specifically, I use this space to directly expose the contradictions that I encounter here

An experimental investigation of damage detection of CFRP using an electrical resistance change method

This study investigated damage detection, location, and quantification in carbon fibre composite laminate structures

Soft public key cipher

Encryption in general is the process of keeping up the secrecy of data (both fixed and versatile) utilizing programs that can Convert and make an interpretation of that data into codes so that whenever got to by unapproved people doesn't They can comprehend anything since what appears to them is a blend of images, numbers and unlimited characters, the file is encrypted And decryption by password, which must be known to both parties (sender and receiver) This is called With symmetric encryption, Decryption means decryption. The quality and viability of encryption rely upon two key factors: the algorithm, and the key length evaluated by Bit, the higher the bit, the greater the security and difficulty of decrypting. The concept of soft set was studied and applied on the public key cryptography like simple Knapsack and Trapdoor Knapsack ciphers. Significant results were presented that was the measure of the evaluate encryption using the SNR and PSNR

Herpes simplex virus type 2 latency: experimental studies with wild type virus and 13 temperature sensitive mutants

Summary available: p. [8

Acculturation Strategies and Arab Youth Cultural Identity Development: A Review

As youth immigrate to a new country, they tend to acculturate in various ways. By definition, acculturation is “the processes through which immigrants gradually adapt their language, behavior and/or values as a result of their contact with the mainstream culture” (Wang et al., 2012). Immigrant youth adopt one of four acculturation strategies, namely assimilation, separation, integration and marginalization (Berry & Sabatier, 2010; Coatsworth & Maldonado-Molina, 2005; Wang et al., 2012). Research has shown that adopting an integrated profile with a balance between both heritage and mainstream cultures translates into greater psychological and socio-cultural adaptation. Synthesized information from research on immigrant youths’ adaptation also holds that the acculturation strategy that they adopt influences their cultural identity development, stability or change. Cultural identity is composed of the immigrant youth’s ethnic identity; shaped by their culture of origin; and their national identity; identity supported by the larger society (Berry & Sabatier, 2010; Berry, 2006; Britto & Amer, 2007; Wang et al., 2012). The purpose of this poster is to provide a greater insight into existing research on Arab youths’ identity development and how this is shaped by the acculturation strategy that they adopt. This can be a base for future research on the stability or fluidity of Arab youth cultural identity development and factors leading to youths’ successful acculturation. Key words: Acculturation strategies, cultural Identity, social goals, Arab youth, immigratio

The Global Financial Crisis and the Hidden Crisis of the Oil-Rentier Economies: Back to Basics; Strategic Insights, v. 8, issue 1(January 2009)

This article appeared in Strategic Insights, v.8, issue 1(January 2009)Approved for public release; distribution is unlimited