bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of program‐advertisement congruity and advertisement emotional appeal on memory for health and safety advertisements
Authors: Furnham Adrian , Goh Mei Fang 
Published: December 2013

AbstractThe aim of this study was to examine the memory for health and safety advertisements (HSAs) embedded within a congruent (documentary) or incongruent (sitcom) program.A total of 80 participants aged 16–25 years took part. Participants watched either a sitcom or a health‐related program with health and safety and “filler” advertisements. After they watched the 30 minute program, they were given free and cued recall measures as well as program evaluation. These showed that the free recall scores were generally better for HSAs than filler advertisements across both program types, while the cued recall and advertisement recognition scores were better for filler advertisements than HSAs. Memory scores revealed that the HSAs were better remembered than filler advertisements in an incongruent program environment. Health advertisements are better recalled in non‐health‐related programs. This supported the interference hypothesis.
Conservative treatment for interstitial monochorionic twin pregnancy: Case report and review of the published work
Authors: Berretta Roberto , Merisio Carla , Dall'Asta Andrea , Verrotti Carla , Rolla Martino , Bruni Stefano , Bacchi Modena Alberto 
Published: December 2013

AbstractInterstitial pregnancy is considered one of the most hazardous types of ectopic pregnancies, with a mortality rate of 2–2.5%. We describe a case of a viable monochorionic twin pregnancy in a 35‐year‐old woman successfully treated with systemic methotrexate associated with bilateral uterine arteries' embolization. β‐hCG was undetectable 67 days after the first administration of methotrexate and the ultrasonography performed on day 67 showed the remnant of the gestational sac in the right uterine horn, a thin endometrium and a normal myometrial vascularization. Conservative treatment allowed us to avoid surgical treatment and to preserve the patient's fertility.
Role of single nucleotide polymorphisms in estrogen‐metabolizing enzymes and susceptibility to uterine leiomyoma in Han Chinese: A case–control study
Authors: Shen Yang , Xu Qian , Ren Mulan , Cai Yunlang , Xu Jie 
Published: December 2013

AbstractAimTo explore the relationship between estrogen metabolism enzyme gene polymorphism and susceptibility to uterine fibroids, and to seek the screening molecular markers for genetic traits in uterine fibroid populations.MethodsA total of 300 female Han Chinese patients and 300 healthy female Han Chinese volunteers in Nanjing (age range, 30–50 years) were recruited from Zhongda Hospital, Southeast University from February 2011 to March 2012. The single nucleotide polymorphisms (SNP) of estrogen‐metabolizing enzyme genes from the two groups of women were examined by polymerase chain reaction denaturing high‐performance liquid chromatography, which were four COMT gene loci including rs3087869, rs165774, rs165599 and rs4680, three CYP1A1 gene loci including rs1048943, rs4646421 and rs4646422, and three CYP1B1 gene loci including rs1056827, rs1056836 and rs1056837. Genotype frequencies among cases and controls were calculated and analyzed by binary logistic regression.ResultsRegression analysis of SNP showed that COMT IVS1+2329C>T (odds ratio [OR], 2.872; 95% CI, 1.690–4.882) and Val158Met (OR, 2.593; 95% CI, 1.546–4.350), CYP1A1 Ile462Val (OR, 2.383; 95% CI, 1.418–4.005) and Gly45Asp (OR, 2.489; 95% CI, 1.49–4.159), and CYP1B1 Ala119Ser (OR, 3.361; 95% CI, 2.035–5.552) and Leu432Val (OR, 0.164; 95% CI, 0.061–0.441) influenced uterine fibroids significantly (P < 0.05). Allele and genotype frequencies among cases and control were calculated and examined to match the Hardy–Weinberg equilibrium with the χ2‐test.ConclusionThe genetic polymorphisms of IVS1+2329C>T and Val158Met loci in COMT, Ile462Val and Gly45Asp loci in CYP1A1 and Ala119Ser loci in CYP1B1 were risk factors for uterine leiomyoma development, and Leu432Val locus in CYB1B1 may be a protective factor. The results provide a theoretical basis for genetic screening and early intervention for uterine leiomyoma‐susceptible populations.
Learning From Successful School‐Based Vaccination Clinics During 2009 pH1N1
Authors: Klaiman Tamar , O'Connell Katherine , Stoto Michael A. 
Published: December 2013

ABSTRACTBACKGROUNDThe 2009 H1N1 vaccination campaign was the largest in US history. State health departments received vaccines from the federal government and sent them to local health departments (LHDs) who were responsible for getting vaccines to the public. Many LHD's used school‐based clinics to ensure children were the first to receive limited vaccine supplies, but the success of school‐based distribution strategies varied in different locations. The goal of this project was to identify and learn from high‐performing school‐based vaccination clinics in order to share successes and improve performance in future school‐based vaccination campaigns.METHODSWe used a combination of process mapping and comparative analysis to identify and derive lessons from positive outlier cases observed during 2009 H1N1 school‐based vaccination clinic implementation. We created process maps to identify the activities of LHDs conducting school‐based vaccinations and used them as the basis for in‐depth interviews of LHD staff. We asked interviewees to describe their activities during the 2009 H1N1 pandemic (pH1N1) school‐based vaccination campaign with a focus on successful processes.RESULTSWe identified positive deviants, that is, those that performed better than expected, and categorized qualitative data from in‐depth interviews with 13 successful LHDs according to the process maps. Key mechanisms for school‐based vaccination success included having a relationship with local school authorities, communicating effectively with parents, and ensuring clinic logistics allowed for an easy flow of students through the vaccination process.CONCLUSIONSUtilizing rigorous methodology, we defined and learned lessons from successful LHDs when conducting school‐based vaccination clinics, which can be applied to future school‐based vaccination campaigns.
Benefits and Quality of Life Outcomes From Transportation Voucher Use by Adults With Disabilities
Authors: Samuel Preethy S. , Lacey Krim K. , Giertz Chesley , Hobden Karen L. , LeRoy Barbara W. 
Published: December 2013

AbstractPeople with disabilities often feel isolated from their communities, which in turn affects their emotional well‐being and their overall quality of life. Access to transportation is a substantial barrier to community participation and an improved quality of life for individuals with disabilities. Transportation voucher programs represent a cost‐effective way to provide access to transportation for people with disabilities, but few studies have empirically examined the effectiveness of such programs. The present study examined the perceived benefits of participating in a transportation voucher program in Michigan, a midwestern state in the United States with limited public transportation. Cross‐sectional survey data collected from a convenience sample of 73 participants of the transportation voucher program, funded by the state's Developmental Disabilities Council from 2005 to 2008, were analyzed. Participation outcomes were differentiated by age, sex, employment status, and type of disability using multivariate logistic regression analysis. More than two‐thirds (70%) of participants reported that their emotional well‐being and community participation had improved, and 54% of participants indicated that participation in the voucher program had resulted in better overall quality of life. The type of disability was an important factor in determining the degree of gain experienced, particularly in terms of community participation and overall quality of life. Findings suggest that resources spent on developing voucher programs have the potential to enrich the lives of persons with disabilities and their families. However, future longitudinal research along with a comparison group may be necessary to validate these preliminary findings on the benefits of vouchers.
Oral infestation with leech Limnatis nilotica in two mixed‐breed dogs
Authors: Rajaei S. M. , Khorram H. , Ansari Mood M. , Mashhadi Rafie S. , Williams D. L. 
Published: December 2013

AbstractLeeches are bloodsucking hermaphroditic parasites that attach to tissues using two muscular suckers, ingest large amounts of blood and may cause severe anaemia in the host. Two four‐month‐old mixed‐breed dogs (one bitch and one male) were referred with anorexia, retching, hypersalivation and bleeding from the oral cavity. On physical examination, two live leeches were detected on the ventral aspect of the tongue of the bitch and one in a similar position in the male. The leeches were gently detached and removed using Adson tissue forceps after applying vinegar over the area. Microcytic hypochromic anaemia was detected in the bitch and mild leukocytosis in the dog. One month after treatment both animals were re‐examined and a complete blood count was normal. Given that infestation with leeches as described here is associated with contaminated water, the use of clean and safe drinking water is recommended to avoid such diseases.
Role of chronic stress and depression in periodontal diseases
Authors: Warren Kimberly R. , Postolache Teodor T. , Groer Maureen E. , Pinjari Omar , Kelly Deanna L. , Reynolds Mark A. 
Published: December 2013

AbstractAn extensive body of experimental and clinical evidence documents the negative impact of chronic psychological stress and depression on the immune system and health. Chronic stress and depression can result in general dysregulation of the immune system, of both cellular and humoral pathways, which may contribute to pathogenic infection and concomitant periodontal tissue destruction. In general, the evidence is consistent with the hypothesis that stress can modify the host defense and progression of periodontal infections in patients susceptible to periodontitis. However, substantial evidence also indicates that these conditions can mediate risk for disease, including periodontitis, through changes in health‐related behaviors, such as oral hygiene, smoking and diet. The unequivocal interpretation of studies has also been hampered, in part, by issues related to conceptualization of stress and depression, as well as commonly associated comorbidities, such as diabetes, that can modify the onset and progression of periodontal disease. In addition, stress and depression appear to fall into a spectrum, ranging from mild to severe, involving a complex interaction of genetic background, coping strategies and environment. Differences in the conceptualization of stress and depression are probably important in assessing associations with other biologic and clinical measures. Future studies are necessary to clarify the complex interactions of chronic stress and depression in periodontal diseases.
Rab7 Is Functionally Required for Selective Cargo Sorting at the Early Endosome
Authors: Girard Emmanuelle , Chmiest Daniela , Fournier Natalie , Johannes Ludger , Paul Jean‐Louis , Vedie Benoît , Lamaze Christophe 
Published: December 2013

AbstractThe small GTPases of the Rab family act as a molecular switch regulating various aspects of membrane trafficking through the selective recruitment of effector proteins. Whereas Rab7 has been classically involved in the regulation of transport within the endolysosomal network, persistent controversy remains as to whether Rab7 also plays a role in earlier steps of endosomal trafficking. In this study, we show that Rab7 depletion or inactivation results in enlargement of both early and late endosomes. Rab7 depletion led to the retention of a significant fraction of internalized low‐density lipoproteins (LDL) mainly in enlarged early endosomes (EE). As a result, LDL processing and the transcriptional regulation of sterol‐sensitive genes were impaired. We found that Rab7 activity was also required for the sorting of the mannose‐6‐phosphate receptor, the interferon alpha‐receptor and the Shiga toxin B‐subunit. In contrast, epidermal growth factor (EGF) sorting at the EE or the recycling of transferrin and LDL‐R were not affected by Rab7 depletion. Our findings demonstrate that in addition to regulating late endosomes (LE) to lysosomes transport, Rab7 plays a functional role in the selective sorting of distinct cargos at the EE and that the Rab5 to Rab7 exchange occurs early in the endosomal maturation process.
Growth factor and proteinase profile of Vivostat® platelet‐rich fibrin linked to tissue repair
Authors: Ågren M. S. , Rasmussen K. , Pakkenberg B. , Jørgensen B. 
Published: December 2013

Background and ObjectivesAutologous platelet‐rich fibrin (PRF®) is prepared by the automatic Vivostat® system. Conflicting results with Vivostat PRF in acute wound healing prompted us to examine its cellular and biomolecular composition. Specifically, platelets, selected growth factors and matrix metalloproteinase (MMP)‐9 were quantified using novel analytical methods.Materials and MethodsTen healthy non‐thrombocytopenic volunteers donated blood for generation of intermediate fibrin‐I and final PRF. Anticoagulated whole blood and serum procured in parallel served as baseline controls. Leucocyte, erythrocyte and platelet counts in whole blood and fibrin‐I were determined by automated haematology analyser. Platelet concentration in PRF was quantified manually by stereologic analysis of Giemsa‐stained tissue sections, and the total content of five growth factors and MMP‐9 by enzyme‐linked immunosorbent assays.ResultsThe number of leucocytes and erythrocytes was reduced (P < 0·001), whereas platelets increased (P < 0·001) in fibrin‐I versus whole blood. PRF contained 982 ± 206 × 109 platelets/l representing 3·9‐fold (P < 0·001) enrichment relative to whole blood. Growth factor abundance in Vivostat PRF and serum was in descending order: transforming growth factor‐β1 [5·1‐fold higher in PRF than serum, P < 0·001] > platelet‐derived growth factor (PDGF)‐AB [2·5‐fold, P < 0·01] > PDGF‐BB [1·6‐fold, P < 0·05] > vascular endothelial growth factor > basic fibroblast growth factor [75‐fold, P < 0·001]. MMP‐9 was reduced 139‐fold (P < 0·001) compared with serum, reflecting leucocyte depletion in PRF.ConclusionThe gained knowledge on platelet enrichment and biomolecular constituents may guide clinicians in their optimal use of Vivostat PRF for tissue regenerative applications.
Detailed Modeling of Parabolic Trough Collectors for the Part Load Simulation of Solar Thermal Power Plants
Authors: Zaversky F. , Bergmann S. , Sanz W. 
Published: December 2013

Solar thermal power plants are a promising way of providing clean renewable electric energy. These plants concentrate the incoming solar direct irradiation in order to heat up a heat transfer fluid. The collected thermal energy can be stored or instantly delivered to a power block where part of the thermal energy is converted to electrical energy in a turbine with the connected generator.
The parabolic trough collector plant is the today’s most developed solar thermal power plant type. There the solar irradiation is focused on receiver tubes which are concentrically placed to the focal lines of the parabolic trough collectors. A high temperature oil is pumped through these receiver tubes, which collects the heat and delivers it later on to the steam generator of the connected Rankine steam cycle. In order to improve the efficiency of these solar thermal power plants, the direct steam generation (DSG) within the parabolic trough collector receiver tubes is being investigated.
Both types of parabolic trough collectors, the conventional type using oil as heat transfer fluid and the direct steam generation type, are subject of this paper. A detailed steady-state parabolic trough collector model was developed for each type, using the thermodynamic simulation software IPSEpro. The developed models consider the cosine-loss attenuation factor, the shading attenuation factor, optical losses, as well as thermal losses. Appropriate heat transfer and pressure loss correlations were implemented for both collector types. For the direct steam generation model, distinct collectors for the preheating section, the evaporation section and the superheating section were used. Furthermore, the suitable length of discretization for the modeling of one collector loop within a center-fed solar field was investigated. Calculated solar field performance data for the oil concept were compared to validated data available in open literature. Finally, a power plant simulation with each collector type, over the course of one reference day, showed the great potential of the direct steam generation, as well as the suitability of IPSEpro for running solar thermal power plant yield simulations.
Mitigating the Variability of Wind and Solar Energy Through Pumped Hydroelectric Storage
Authors: Richards S. , Perez-Blanco H. 
Published: December 2013

Renewable power production is both variable and difficult to forecast accurately. These facts can make its integration into an electric grid problematic. If an area’s demand for electricity can be met without using renewable generation, the addition of renewable generation would not warrant a further increase in generation capacity. However, to effectively integrate large amounts of additional renewable generation, it is likely that a more flexible generation fleet will be required. One way of increasing a generation fleet’s flexibility is through the adoption of pumped hydroelectric storage (PHS, see the glossary for definitions of select terms). Like traditional hydropower generation, PHS is capable of quickly varying its power output but it is also capable of operating in reverse to store excess energy for later use. This paper will address many of the operational aspects of combining pumped hydroelectric storage (PHS), which is currently used to store excess energy from traditional generators, with wind and solar power generation.
PJM, a grid operator in the Middle Atlantic States, defines capacity value for renewable generation as the percent of installed generating capacity that the generator can reliably contribute during summer peak hours. Existing wind generators inside PJM have an average capacity value of 13% and existing solar generators have a capacity value of 38%. The chief reason for these capacity values is that the renewable power production does not usually coincide with the hours of peak electricity demand during the summer. If PHS were used to firm renewable power generation, it would translate into increased utilization of the renewable generation that would displace the least efficient/most costly generators.
A computer model with one minute granularity is constructed in order to study the operational requirements of PHS facilities. PJM electricity demand, power prices, and wind power production data for 2010 were used in conjunction with NREL simulated solar power production as input to the model. Currently, various PHS operational strategies are being tested to ascertain their effectiveness at firming and time shifting renewable generation. Preliminary results show the profound effects of increased penetration of renewable energy on an electric grid. The results also demonstrate a niche for even greater PHS operational flexibility, i.e. variable speed or unidirectional ternary machine (UTM) PHS.
Blade Shape Optimization of Marine Propeller via Genetic Algorithm for Efficiency Improvement
Authors: Taheri Ramin , Mazaheri Karim 
Published: December 2013

In this paper, a numerical optimization method has been carried out to optimize the shape and efficiency of a propeller. For analysis of the hydrodynamic performance parameters, an extended vortex lattice method was used by implementing an open-source code which is called OpenProp. The method of optimization is a non-gradient based algorithm. After a trade-off between a few gradient-based and non-gradient based algorithms, it is found that the problem of being trapped in local optimum solutions can be easily solved by choosing nongradient based ones. Hence, modified Genetic algorithm is used to implement the so-called hydrodynamic performance analyzer code. The objective function is to maximize efficiency by considering the design variables as non-dimensional blade’s chord and thickness distribution along the blade. For initial guess data of the DTRC 4119 propeller which are radially distributed along the blade is used. The hydrodynamic performance analyzer code is modified by a higher order QuasiNewton scheme. Also hybrid function is used to accurate the convergence. Finally, parallel processing implementation on the codes has been done successfully. To improve the computation speed, the algorithm is improved to be extended on a parallel processing system. The process of parallelizing has been done simplicity by Matlab M-code and the number of cores has been chosen as 4. The final results verify both fast convergence in comparison with common methods and nearly 10% improvement in propeller efficiency (mechanical efficiency of the system) which is significant for these kinds of problems.
Therefore, the algorithm starts with geometry arrived at by other researchers and improves it to a more efficient propeller.
Aerothermodynamic Development of a 70 kW Microturbine
Authors: Rodgers Colin 
Published: December 2013

The aerothermodynamic component and engine development of a 70kW microturbine turbogenerator is discussed. The design incorporated a single stage centrifugal compressor mounted back-to-back with a single stage radial inflow turbine both mounted on a common shaft rotating at 90,000 rpm and directly coupled to a permanent magnet generator.
Component testing of the compressor and turbine was conducted at existing academic facilities prior to engine development testing which subsequently demonstrated better output power than design projections as a consequence of higher component efficiencies, increased airflow and better generator performance.
A CFD Study on the Dynamic Coefficients of Labyrinth Seals
Authors: Zhang Donghui , Lee Chester , Cave Michael 
Published: December 2013

Labyrinth seals are widely used in gas compressors to reduce internal leakage and increase the compressor efficiency. Due to the eccentricity between the rotating impeller and the stationary part as *well as the shaft whirling motion, forces are generated when the leakage flow passing through the cavities and the seals. For a lot of applications with high speed and pressure, these forces can drive the system unstable. Thus, predicting the forces accurately become a very important for compressor rotordynamic designs.
A lot of research and studies has been done to the seals itself, including bulk flow method, computational fluid dynamic (CFD) and test measurement. The seal and leakage flow interaction forces can be predicted relatively accurate. But very few research treat the seal and cavities as one component interacting with the leakage flow and produce the forces. This paper presents results of CFD investigations on the dynamic coefficients of one typical impeller eye seal and front cavity. The CFD results show that large forces are generated in the front cavity due to circumferential uniform pressure distribution, which caused by the downstream labyrinth seal. The forces generated in the front cavity are more than in the front seal.
It was found that the inertia, damping, and stiffness are proportional to average pressure. The cross-coupling stiffness increases with speed with power of 2 while the direct stiffness increases with speed with power of about 1.7.