Noise-Aided Logic in an Electronic Analog of Synthetic Genetic Networks

We report the experimental verification of noise-enhanced logic behaviour in an electronic analog of a synthetic genetic network, composed of two repressors and two constitutive promoters. We observe good agreement between circuit measurements and numerical prediction, with the circuit allowing for robust logic operations in an optimal window of noise. Namely, the input-output characteristics of a logic gate is reproduced faithfully under moderate noise, which is a manifestation of the phenomenon known as Logical Stochastic Resonance. The two dynamical variables in the system yield complementary logic behaviour simultaneously. The system is easily morphed from AND/NAND to OR/NOR logic

School of Music Holiday Concert

The Kennesaw State University School of Music presents its 2019 Holiday Concert.https://digitalcommons.kennesaw.edu/musicprograms/2277/thumbnail.jp

Comparison of the crevice corrosion resistance of Alloys 625 and 22 in concentrated chloride solution from 60 to 95 degrees C

The effects of electrolyte composition and oxide film age on the crevice corrosion properties of alloys 625 and 22 were studied at temperatures ranging from 60 to 95 C in concentrated chloride electrolytes. Critical potentials were determined using conventional current density thresholds and comparisons were made between 625 and 22 on the basis of these critical potentials. Air aged 22 specimens exhibited the highest resistance to crevice corrosion at 95 C in terms of critical crevice potentials, while freshly polished 22 exhibited the lowest resistance. Studies over the entire, temperature range showed that air aged 22 is more resistant to crevice corrosion than air aged 625 as evidenced by higher critical crevice potentials. As the temperature was lowered from 95 to 8O C, critical crevice potentials for 22 either approached or exceeded experimentally determined Cr (Mo, Ni) transpassive potentials

Comparison of the crevice corrosion resistance of alloys 625 and 22

The Yucca Mountain Site Characterization Project is concerned with the corrosion resistance of candidate engineered waste package materials. A variety of waste package designs have been proposed for US and Canadian High Level Nuclear Waste Repositories. A common feature of each design is the possibility of utilizing a corrosion resistant material such as a nickel-based super alloy or titanium-based alloy. A suitable corrosion resistant material may provide (a) kinetic immunity if the combination of repository environmental conditions and alloy resistance assure both: (i) a passive condition with negligible chance of localized corrosion stabilization, as well as (ii) low enough passive dissolution rates to insure conventional corrosion allowance over geological times, (b) a second form of ''corrosion allowance,'' if it can be scientifically demonstrated that a mechanism for stifling (i.e., death) of localized corrosion propagation occurs well before waste canisters are penetrated, or (c) such a low probability of initiation and continued propagation that a tolerably low degree of penetration occurs. Unfortunately, a large database on the crevice corrosion properties of alloy 22 does not exist in comparison to alloy 625. Alloy screening tests in oxidizing acids containing FeCl3 indicate that alloy 22 is more resistant to crevice corrosion than 625 as indicated by critical pit and crevice temperatures. Differences in alloying element compositions as expressed by pitting resistance equivalency number calculations support these findings. However, these data only provide the relative ranking of these alloys in terms of crevice corrosion and do not answer the critical questions proposed above

A survey of phytoestrogenic activity in Kansas flint hills pastures

The botanical composition and basal cover of three Kansas Flint Hills pastures located in Butler and Chase counties was surveyed to estimate the incidence of plant species that contain appreciable levels of estrogenic activity. Many-flowered scurfpea and Ladino clover were the only plant species classified as high in estrogenic activity. Although significant estrogenic activity existed in specific species, the willingness of livestock to consume those species is unclear

Young masculinities across five European countries : performing under pressure

© 2019 Informa UK Limited, trading as Taylor & Francis Group. We present an analysis of young masculinities based on young peoples’ perspectives derived from a project on sexual bullying. Our qualitative data are based on 41 focus groups with 253 young people (male and female) aged 13–18 across five European countries (Bulgaria, Italy, Latvia, Slovenia and England) as well as questionnaire responses. The data were analysed using thematic analysis (Braun, V., and V. Clarke. 2006. “Using Thematic Analysis in Psychology.” Qualitative Research in Psychology 3 (2): 77–101). Our analysis pointed to the prevalence of sexist and homophobic behaviours among young men, who were themselves concerned with their ‘masculine’ reputations by appearing physically tough, (hetero)sexually active and emotionally closed. The young women in our sample also depicted many young men as immature, naïve and superficial. At the same time, the young men were portrayed as more calm, rational and resilient compared to their female counterparts, with young men insisting that any ‘problematic’ or ‘bullying’ behaviour amounted to harmless fun. Our analysis suggests that young men are performing gender and sexuality under the influence of conventional norms which prioritise homosociality, humour and status, which shy away from challenging sexist or homophobic practices, and which inhibit reporting themselves as victims of bullying. The implications for young masculinities and social change are discussed

Endogenous Retrovirus Insertion in the KIT Oncogene Determines White and White spotting in Domestic Cats

The Dominant White locus (W) in the domestic cat demonstrates pleiotropic effects exhibiting complete penetrance for absence of coat pigmentation and incomplete penetrance for deafness and iris hypopigmentation. We performed linkage analysis using a pedigree segregating White to identify KIT (Chr. B1) as the feline W locus. Segregation and sequence analysis of the KIT gene in two pedigrees (P1 and P2) revealed the remarkable retrotransposition and evolution of a feline endogenous retrovirus (FERV1) as responsible for two distinct phenotypes of the W locus, Dominant White, and white spotting. A full-length (7125 bp) FERV1 element is associated with white spotting, whereas a FERV1 long terminal repeat (LTR) is associated with all Dominant White individuals. For purposes of statistical analysis, the alternatives of wild-type sequence, FERV1 element, and LTR-only define a triallelic marker. Taking into account pedigree relationships, deafness is genetically linked and associated with this marker; estimated P values for association are in the range of 0.007 to 0.10. The retrotransposition interrupts a DNAase I hypersensitive site in KIT intron 1 that is highly conserved across mammals and was previously demonstrated to regulate temporal and tissue-specific expression of KIT in murine hematopoietic and melanocytic cells. A large-population genetic survey of cats (n = 270), representing 30 cat breeds, supports our findings and demonstrates statistical significance of the FERV1 LTR and full-length element with Dominant White/blue iris (P \u3c 0.0001) and white spotting (P \u3c 0.0001), respectively

Evaluation of Ralgro® on pasture and subsequent feedlot performance and carcass merit of mexican crossbred steers

A pasture/feedlot field study was conducted to evaluate the effects of a single Ralgro® implant during the stocker phase on steer grazing performance and subsequent feedlot performance and carcass merit. A total of 2,764 steers of Mexican origin averaging 449 lb were assembled in Texas and shipped to Kansas, where they grazed on three intensively-early-stocked Flint Hills pastures. At initial processing, the steers were individually weighed and randomly assigned to either a non-implanted control group or a Ralgro implant group. Ralgro steers gained more (23 lb; P<0.01) than controls during the 82- to 93-day grazing phase. Following the grazing phase, all steers were shipped to a commercial feedlot in southwestern Kansas where steers from each pasture were individually weighed and given a single Component E-S® implant. Immediately after processing, steers from each pasture were sorted into either a light- or heavy-weight pen, regardless of pasture implant treatment, resulting in six feedlot pens. Days on feed ranged from 127 to 197. Control steers gained faster (P<0.01) during the feedlot phase; however, Ralgro steers had higher cumulative weight gains across the combined pasture and feedlot phases (P<0.01) and averaged three fewer days on feed (P<0.05). There were no significant differences for marbling, fat thickness, ribeye area, KPH fat, or yield grade. Ralgro steers had lower (P<0.05) quality grades because of a higher incidence (P<0.001) of steers with B and C carcass maturities

Assessment of Kansas Beef Producers’ Perception and Knowledge Level of Business-to-Consumer Marketing

Objective: The objective of this study was to assess the perception and knowledge level of Kansas beef producers regarding business-to-consumer marketing. Study Description: A digital survey was created to assess the perception and knowledge level of business-to-consumer (B2C) marketing of Kansas beef producers. The survey was disseminated to Kansas beef producers utilizing the Shop Kansas Farms online social networking group. Results: Results from this study showed that 25.5% of beef producer respondents (n = 41) raise another species in addition to beef. It was found that 50.0% of survey respondents sold 20 or fewer head of finished beef cattle in 2020, with 43.9% selling 100% of their beef to individual consumers. Furthermore, 61.0% of respondents reported an increase in sales to individual consumers in 2020 compared to previous years, with 75.0% indicating sales to large beef processors were about the same. An increase in individual consumer sales was classified as “very desirable” by 73.0% of respondents, and 87.1% believe sales to individual consumers are the most profitable marketing channel. There were 72.2% of respondents selling beef in a B2C market for 1–10 years, with 47.2% reporting that repeat customers make up 75% of their sales. Word of mouth was the most common method of product marketing, as indicated by 91.6% of producers. Concerns or complaints from consumers were noted by 38.9%. It was believed by 47.1% of respondents that an improvement in consumer knowledge would be “very effective” to prevent future complaints or concerns. Moreover, an increase in producer knowledge was believed by 31.03% to be “extremely effective” in preventing future complaints or concerns. Finally, it was believed that an increase in state extension resources would be “moderately” or “very” effective in improving consumer and producer knowledge by 46.9% and 33.3% of respondents, respectively. The Bottom Line: Producers self-reported B2C marketing to be the most profitable marketing channel within their operation. However, many are not utilizing this channel to its full potential, and many have experienced consumer concerns or complaints. This study confirms the need for more state extension resources to support B2C marketing for beef producers in Kansas and sets the foundation for future research priorities