Classifying Hopf algebras of a given dimension

Classifying all Hopf algebras of a given finite dimension over the complex numbers is a challenging problem which remains open even for many small dimensions, not least because few general approaches to the problem are known. Some useful techniques include counting the dimensions of spaces related to the coradical filtration, studying sub- and quotient Hopf algebras, especially those sub-Hopf algebras generated by a simple subcoalgebra, working with the antipode, and studying Hopf algebras in Yetter-Drinfeld categories to help to classify Radford biproducts. In this paper, we add to the classification tools in our previous work [arXiv:1108.6037v1] and apply our results to Hopf algebras of dimension rpq and 8p where p,q,r are distinct primes. At the end of this paper we summarize in a table the status of the classification for dimensions up to 100 to date.Comment: This version of the paper contains a correction on the published version. The statement and proof of Proposition 2.17 are changed and the proof of the results that follow from it are corrected accordingly. We thank H.-S. Ng for kindly communicating the gap to us and for the careful reading of our pape

Effectiveness and Efficiency of Polymers in Enhanced Oil Recovery of High Water Cut Reservoirs of Varying Salinities and Temperatures via Reservoir Simulations

The world‟s energy demand is increasing and all indications are that oil will be the leading energy supply for the foreseeable future. However, a significant amount of the world‟s „easy to produce oil‟, has been produced. Additionally, some of the remaining oil is rendered immobile due to capillary forces (residual oil) and some oil will be bypassed and remains trapped (bypassed oil) even after a reservoir has undergone secondary recovery. This remaining oil can account for 45- 70% of the original oil in a hydrocarbon reservoir. Therefore, methods to both improve and enhance oil recovery are highly sought. Enhanced oil recovery methods serve to recover such oil through techniques such as: thermal recovery, gas injection, and chemical injection. The latter is the subject of this thesis. Chemical injection involves the use of a surfactant to reduce the surface tension between the oil and the oil bearing rock layer and/ or polymers to increase the viscosity of the injected fluid and thereby improving sweep efficiency and mobility of oil, thus increasing production. In general, the polymers are not effective in removing residual oil and has some associated problems. Conventional polymers have been reported to plug oil reservoirs, biodegrade (biopolymers), or become impuissant in reservoirs with high salinity or high temperatures. Therefore a better solution is needed. This project will evaluate the effectiveness and efficiency of a cassava starch- based polymer with the aim of increasing producibility of residual and bypassed oil, while eliminating negative effects of conventional polymers. Laboratory experiments and computationally efficient models will be employed to simulate the physical performance of the starch- based polymer in reservoir regimes of varying salinities and temperatures. Lastly, a sensitivity analysis will be undertaken to compare the recovery factor, concentration and profitability of starch- based polymer to that of two conventional polymers (Xanthan Gum and Hydrolysed Polyacrylamide (HPAM)). Through the above methods, it was observed, that when compared to conventional HPAM and Xanthan Gum polymers, the cassava starch- based polymer provides substantive viscosities at low concentration, is more effective in high salinity and high temperature regimes than Xanthan Gum and HPAM but is highly susceptible to biodegradation unless treated with additives. In addition, the oil production capability is comparable to HPAM and Xanthan gum. Residual oil production was inconclusive, pending core flooding experiments.

Baseline data of a longitudinal assessment of a Bachelor of Science in Health Science (BSHS) Program based on the core competencies for Interprofessional Collaborative Practice (IPCP)

Background: IPCP has been identified as essential to provide quality healthcare: so, IPE is being integrated to professional programs. While IPE is being researched in professional programs, not much is known about IPE at the pre-professional level. Purpose: Stockton’s BSHS program was built based upon the Core Competencies for IPCP. The current study assessed the following IPE-related constructs: Health Science Reasoning, Ethical Decision Making for Health, Attitude Towards Health Care Teams, and Readiness for IP Learning. Description: A cohort of students was recruited during the introductory course to the program. The following measures were administered at baseline: Health Science Reasoning Test (HSRT), Ethical Decision Making (EDM) Measure for Health Science, The Attitudes Toward Health Care Teams Scale (ATHCTS), Readiness for Interprofessional Learning (RIPLS) and demographic questions. Results: A cohort (N = 483) of students was recruited; N = 464 participated of the baseline. Results of main measures are: HSRT (M = 17.2, SD = 4.7), EDM (M = 2.18, SD = 0.20), ATHCTS (M = 4.1, SD = 0.47), RIPLS (M = 3.68, SD = 0.91). Results for subscales and demographic data will be included in the presentation. Conclusions: Results from EDM, ATHCTS and RIPLS suggest undergraduate pre-professional students’ Ethicality is at expected levels, they have positive attitudes toward healthcare teams and are prepared to receive IPE. However, the sample performed significantly below the expected level of critical thinking. Relevance: This suggests that students in an undergraduate health science program can receive interprofessional education, at least at the attitudinal and awareness level. IPE at this level can effectively foster positive attitudes towards working interprofessionally

Overactive bladder and caffeine: comparing women with and without mental health diagnoses

Caffeine is a stimulant thought to activate the pleasure centre in the brain, commonly used in the general public for purposeful attempt to alter mood, and also commonly perceived to be a bladder irritant with associated urgency and frequency symptoms. Mental health diagnosis, such as depression, is also associated with overactive bladder. Taken together, it is plausible that women with overactive bladder symptoms along with comorbid mental health symptoms may also show higher caffeine intake but no data exist. This pilot study's purpose was to determine in women with overactive bladder, if those with a mental health diagnosis (we included anxiety, depression, post-traumatic stress disorder and bipolar diagnosis) consume a significantly higher amount of caffeine than those without any of these diagnoses. Secondary analysis was performed on data from women with overactive bladder recruited into a longitudinal parent study on beverage management. All parent study participants met criteria of urgency and voiding more than seven times per day. Each kept a detailed 3-day diary of beverage intake. From the total parent study pool of 61, we identified 14 women with a comorbid mental health diagnosis as described above and 47 without when interviewed at baseline. Women with mental health diagnosis demonstrated higher median baseline caffeine intake per day than their counterparts without mental health diagnosis: 240·2 mg (range: 72·3–576·0 mg) versus 174·3 mg (range: 0–567·6 mg), which was marginally significant ( p = · 053). Volume of caffeinated beverage intake did not differ significantly. In women with overactive bladder and comorbid mental health symptoms, higher caffeine intake may be a previously unrecognized link. Cause and effect is unknown between the three conditions of overactive bladder, mental health disorders and higher caffeine intake; but this initial data support the need for further research.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/79289/1/j.1749-771X.2010.01079.x.pd

Guiding Nurses to a Healthier Lifestyle

AbstractNurses provide continuous patient care around the clock. Nurses who work outside of the 9:00 a.m. to 5:00 p.m. hours are susceptible to fatigue and sleep deprivation that impair their attention to detail, ability to remain focused, information processing, and problem solving. This is especially prevalent among those who work the night shift. Nurses also find that their memory, reaction time, motivation, communication, mood, and empathy are affected with fewer hours of sleep. This project explored the sleepiness that night shift nurses experience and provides nurses with strategies to improve these symptoms. Nurses were provided with a PowerPoint presentation to promote awareness of the risks of sleep deprivation and how changing their lifestyle would benefit them. In developing this project, Pender’s health promotion model was used as the framework for this study. The Karolinska and Epworth Sleepiness Scales were used to measure the prevalence and intensity of night shift nurse sleepiness prior to the development of the educational program on how to manage sleepiness. The education program was presented to 86 nurses with pre intervention//post intervention education surveys that were completed by 62 nurses. Results indicated that participating nurses increased their knowledge of managing strategies for sleepiness. Post-intervention education for the Karolinska Sleepiness Scale (KSS) showed that 87.09% of the participants claimed to be very alert to alert, a 35.47% increase from pre-intervention and the Epworth Sleepiness Scale (ESS) showed that 79.03% participants were unlikely to be abnormally sleepy a 32.26% increase from pre-intervention. The findings of this project contribute to positive social change by improving nurses’ sleep health and the quality of patient care by making nurses more aware of night shift sleepiness and management strategies

PICA Variants with Improved Mechanical Properties

Phenolic Impregnated Carbon Ablator (PICA) is a member of the family of Lightweight Ceramic Ablators (LCAs) and was developed at NASA Ames Research Center as a thermal protection system (TPS) material for the Stardust mission probe that entered the Earth s atmosphere faster than any other probe or vehicle to date. PICA, carbon fiberform base and phenolic polymer, shows excellent thermal insulative properties at heating rates from about 250 W/sq cm to 1000 W/sq cm. The density of standard PICA - 0.26 g/cu cm to 0.28 g/cu cm - can be changed by changing the concentration of the phenolic resin. By adding polymers to the phenolic resin before curing it is possible to significantly improve the mechanical properties of PICA without significantly increasing the density

OSU-03012 sensitizes breast cancers to lapatinib-induced cell killing: a role for Nck1 but not Nck2

Background Lapatinib is characterized as an ErbB1/ErbB2 dual inhibitor and has recently been approved for the treatment of metastatic breast cancer. In this study, we examined mechanisms associated with enhancing the activity of lapatinib via combination with other therapies. Methods In the present studies, estrogen receptor (ER) positive and ER negative breast cancer cells were genetically manipulated to up- or downregulate eIF2-alpha, its phospho-mutant, Nck1, or Nck2, then treated with OSU-03012, lapatinib or the combination and assayed for cytotoxicity/cytostaticity using clonogenic assays. Results Treatment of breast cancer cell lines with lapatinib and OSU-03012 (a small molecule derivative of the Cox-2 inhibitor celecoxib) induced synergistic cytotoxic/cytostatic effects. This combination therapy corresponded to an increase in the phosphorylation of eIF2-α at serine51 and a decrease in Nck1 expression. Ectopic expression of phospho-mutant eIF2-α (Ser51Ala) or downregulation of eIF2-α in addition to downregulation of the eIF2-α kinase PERK inhibited the synergistic and cytotoxic effects. Furthermore, ectopic expression of Nck1, but not Nck2 abolished the decrease in cell viability observed in combination-treated cells. Downregulation of Nck1 failed to “rescue” the ablation of the cytotoxic/cytostatic effects by the phospho-mutant of eIF2-α (Ser51Ala) demonstrating that Nck1 downregulation is upstream of eIF2-α phosphorylation in the anti-survival pathway activated by lapatinib and OSU-03012 treatment. Finally, co-immunoprecipitation assays indicated that eIF2-α dissociates from the Nck1/PP1 complex after OSU-03012 and lapatinib co-treatment. Conclusions These data indicate that OSU-03012 and lapatinib co-treatment is an effective combination therapy, which functions to enhance cell killing through the Nck1/eIF2 complex. Hence, this complex is a novel target for the treatment of metastatic breast cancer

Effectiveness and Efficiency of Polymers in Enhanced Oil Recovery of High Water Cut Reservoirs of Varying Salinities and Temperatures via Reservoir Simulations

The world‟s energy demand is increasing and all indications are that oil will be the leading energy supply for the foreseeable future. However, a significant amount of the world‟s „easy to produce oil‟, has been produced. Additionally, some of the remaining oil is rendered immobile due to capillary forces (residual oil) and some oil will be bypassed and remains trapped (bypassed oil) even after a reservoir has undergone secondary recovery. This remaining oil can account for 45- 70% of the original oil in a hydrocarbon reservoir. Therefore, methods to both improve and enhance oil recovery are highly sought. Enhanced oil recovery methods serve to recover such oil through techniques such as: thermal recovery, gas injection, and chemical injection. The latter is the subject of this thesis. Chemical injection involves the use of a surfactant to reduce the surface tension between the oil and the oil bearing rock layer and/ or polymers to increase the viscosity of the injected fluid and thereby improving sweep efficiency and mobility of oil, thus increasing production. In general, the polymers are not effective in removing residual oil and has some associated problems. Conventional polymers have been reported to plug oil reservoirs, biodegrade (biopolymers), or become impuissant in reservoirs with high salinity or high temperatures. Therefore a better solution is needed. This project will evaluate the effectiveness and efficiency of a cassava starch- based polymer with the aim of increasing producibility of residual and bypassed oil, while eliminating negative effects of conventional polymers. Laboratory experiments and computationally efficient models will be employed to simulate the physical performance of the starch- based polymer in reservoir regimes of varying salinities and temperatures. Lastly, a sensitivity analysis will be undertaken to compare the recovery factor, concentration and profitability of starch- based polymer to that of two conventional polymers (Xanthan Gum and Hydrolysed Polyacrylamide (HPAM)). Through the above methods, it was observed, that when compared to conventional HPAM and Xanthan Gum polymers, the cassava starch- based polymer provides substantive viscosities at low concentration, is more effective in high salinity and high temperature regimes than Xanthan Gum and HPAM but is highly susceptible to biodegradation unless treated with additives. In addition, the oil production capability is comparable to HPAM and Xanthan gum. Residual oil production was inconclusive, pending core flooding experiments.