bluuebunny/crossref_metadata_2025_split huggingface dataset:
One-pot Preparation of Homopropargylic N-Sulfonylamines Catalyzed by Zinc Powder
Authors: Wu Chao , Huang Wangyong , He Weimin , Xiang Jiannan 
Published: July 2013

Abstract
A new one-pot method for synthesis of homopropargylic N-sulfonylamines from aldehydes catalyzed by zinc powder is described. The procedure is lauded by its simplicity, good yields, and adaptability to a wide variety of aldehydes.
The gastric H, K-ATPase system also functions as the Na, K-ATPase and Ca-ATPase in altered states
Authors: Ray Tushar 
Published: July 2013

This article offers an explanation for the apparent lack of Na, K-ATPase activity in parietal cells although ouabain has been known to inhibit gastric acid secretion since 1962. The gastric H, K-ATPase (proton-pump) seems to be acting in altered states, thus behaving like a Na, K-ATPase (Na-pump) and/or Ca-ATPase (Ca-pump) depending on cellular needs. This conclusion is based on the following findings. First, parietal cell fractions do not exhibit Na, K-ATPase activity at pH 7.0 but do at pH 8.5. Second, the apical plasma membrane (APM) fraction exhibits a (Ca or Mg)-ATPase activity with negligible H, K-ATPase activity. However, when assayed with Mg alone in presence of the 80 k Da cytosolic proton-pump activator (HAF), the APM fraction reveals remarkably high H, K-ATPase activity, suggesting the observed low affinity of Ca (or Mg)-ATPase is an altered state of the latter. Third, calcium (between 1 and 4 µM) shows both stimulation and inhibition of the HAF-stimulated H, K-ATPase depending on its concentration, revealing a close interaction between the proton-pump activator and local Ca concentration in gastric H, K-ATPase function. Such interactions suggest that Ca is acting as a terminal member of the intracellular signaling system for the HAF-regulated proton-pump. It appears that during resting state, the HAF-associated H, K-ATPase remains inhibited by Ca (>1 µM) and, prior to resumption of acid secretion the gastric H, K-ATPase acts temporarily as a Ca-pump for removing excess Ca from its immediate environment. This conclusion is consistent with the recent reports of immunochemical co-localization of the gastric H, K-ATPase and Ca-ATPase by superimposition in parietal cells, and a transitory efflux of Ca immediately preceding the onset of acid secretion. These new perspectives on proton-pump function would open new avenues for a fuller understanding of the intracellular regulation of the ubiquitous Na-pump.
Four-Phase Equilibrium Calculations of Carbon Dioxide/Hydrocarbon/Water Systems With a Reduced Method
Authors: Mohebbinia Saeedeh , Sepehrnoori Kamy , Johns Russell T. 
Published: July 2013

Summary
Three hydrocarbon phases can coexist at equilibrium at relatively low temperatures in many carbon dioxide (CO2) floods. The formation of an aqueous phase in contact with hydrocarbon phases is inevitable in almost all recovery processes, because of the permanent presence of water in the reservoirs either as injection fluid or as initial formation water. As the number of phases increases, flash calculations become more difficult and time-consuming. A possible approach to reduce the computational time of the phase-equilibrium calculations is to use reduced methods. This paper presents a general strategy to model the phase behavior of CO2/ hydrocarbon/water systems in which four equilibrium phases occur by use of a reduced-flash approach. The speedup obtained by a reduced-flash algorithm compared with the conventional-flash approach is demonstrated for a different number of components and phases. The results show a significant speedup in the Jacobian-matrix construction and in Newton-Raphson (NR) iterations by use of the reduced method when four phases are present. The computational advantage of the reduced method increases rapidly with the number of phases and components. The developed four-phase reduced-flash algorithm is used to investigate the effect of introducing water on the phase behavior of two west Texas oil/CO2 mixtures. The results show changes in the phase splits and saturation pressures by adding water to these CO2/hydrocarbon systems.
Multicenter evaluation of the administration of crotalid antivenom in cats: 115 cases (2000–2011)
Authors: Pashmakova Medora B. , Bishop Micah A. , Black Dorothy M. , Bernhard Christa , Johnson Scott I. , Mensack Steven , Wells Raegan J. , Barr James W. 
Published: July 2013

Abstract
Objective—To evaluate use of crotalid antivenom, frequency of hypersensitivity reactions, and risk factors for hypersensitivity reactions and death in envenomed cats.
Design—Retrospective multicenter case series.
Animals—115 envenomed cats treated with antivenom and 177 envenomed cats treated without antivenom.
Procedures—Medical records from 5 institutions were searched by means of a multiple-choice survey with standardized answers for patient data including signalment, diagnosis, antivenom administration criteria, premedication, product, dose, administration rate, hypersensitivity reactions, and mortality rate.
Results—95 of 115 (82.6%) cats received whole IgG antivenom, 11 (9.57%) received F(ab′)2 antivenom, and 4 (3.48%) received Fab antivenom. The majority (101/115 [878%]) of cats received 1 vial of antivenom. In all cats, the median dilution of antivenom was 1:60 (range, 1:10 to 1:250) administered over a median period of 2.0 hours (range, 0.3 to 9.0 hours). There was no mortality rate difference between cats that did (6.67%) or did not (5.08%) receive antivenom. A type I hypersensitivity reaction was diagnosed in 26 of 115 (22.6%) cats. The use of premedications did not decrease type I hypersensitivity or improve mortality rate. Cats that had a type I hypersensitivity reaction were 10 times as likely to die as were those that did not have such a reaction.
Conclusions and Clinical Relevance—The mortality rate of cats treated with antivenom was low. The administration of premedications did not improve mortality rate or prevent hypersensitivity reactions. The only variable associated with mortality rate was development of a type I hypersensitivity reaction. The rate of antivenom administration should be further evaluated as a possible risk factor for type I hypersensitivity reactions.
Review of the Michigan Upper Peninsula Bovine Viral Diarrhea Virus Eradication Project
Authors: Grooms Daniel L. , Bartlett Benjamin B. , Bolin Steven R. , Corbett Erik M. , Grotelueschen Dale M. , Cortese Victor S. 
Published: July 2013

Abstract
Objective—To evaluate the effects of a voluntary regional bovine viral diarrhea virus (BVDV) control project implemented in the Upper Peninsula of Michigan.
Design—Longitudinal study.
Sample—294 cattle producers and 11,917 cattle from the Upper Peninsula.
Procedures—Producer participation was assessed to determine the effectiveness of the project's promotional and educational campaigns. Participating herds were screened for cattle persistently infected (PI) with BVDV by real-time reverse transcriptase PCR assay on ear notch specimens from all newborn calves and cattle that did not calve (bulls and young stock) during the year of enrollment. Responses to a survey administered to producers 4 years after project initiation were evaluated to assess the project's effect on BVDV management practices implemented by producers.
Results—294 of 495 (59%) known cattle producers in the Upper Peninsula participated in the project, and 11,917 cattle from 232 herds were tested for BVDV, of which 22 (0.18%) cattle from 9 (3.9%) herds were identified as PI with BVDV and euthanized or slaughtered. Of 140 survey respondents, 85 (61%) indicated they would test all new herd additions for BVDV, 83 (59%) would quarantine new herd additions for 30 days before introducing them to the main herd, and 81 (58%) would use the fact that their herd was free of cattle PI with BVDV for marketing purposes.
Conclusions and Clinical Relevance—Results indicated that the project enhanced producer knowledge about BVDV and led to changes in producer behavior regarding BVDV management. Stakeholder engagement was as critical to project success as was increased BVDV knowledge.
Recycling of Waste Moulding Sands with New Binders
Authors: Izdebska-Szanda I. , Angrecki M. , Palma A. 
Published: July 2013

Abstract
This paper presents the results of research which is part of studies carried out under the project POIG.01.01.02-00-015/09 "Advanced Materials and Technologies", one of the aims of which is to introduce new, environment-friendly, inorganic binders to the production of castings from non-ferrous metals. The paper presents the results of research on the management of waste moulding sands prepared according to the new technology, including their multiple reclamation and management of post-reclamation waste. Studies of multiple reclamation are a continuation of the preliminary research described earlier. The programme of the studies described in this paper also included validation of the results under industrial conditions.
Study on the Beef Pigments
Authors: Drăghici Olga , Avram Ionuţ , Hîrîciu Daniela , Nan Mădălina , Toader Alina 
Published: July 2013

Abstract
Myoglobin, meat pigment is an iron containing protein found in muscle consisting of heme connected to a single proteide chain. Color is the most important factor in meat products influencing the consumer purchase decision and affecting the perception of freshness. This research presents a spectophotometric method tested identify myoglobin in beef, readings being made at several wavelenghts. Oxidation of myoglobin pigment in metmyoglobin, was also analysed using peroxide hydrogene. A considerable decrease of myoglobin compared with the standard sample was observed (approximately 7 times).
Pluchea lanceolata protects against Benzo(a) pyrene induced renal toxicity and loss of DNA integrity
Authors: Jahangir Tamanna , Safhi Mohammed M. , Sultana Sarwat , Ahmad Sayeed 
Published: July 2013

Abstract
Evidence from epidemiological, experimental and clinical trial data indicates that a plant based diet can reduce the risk of chronic diseases and reduces toxic effects. In the present study, we report the antioxidant and anticlastogenic activity of Pluchea lanceolata (PL), an important medicinal plant, in both in vitro and in vivo model. Benzo(a)pyrene (B(a)P) administration leads to depletion of renal glutathione and its metabolizing enzymes. Pretreatment with PL (100 and 200 mg /kg b.wt) restored renal glutathione content and its dependent enzymes significantly (p<0.001) with simultaneous increase in catalase(CAT), quinone reductase(QR) in mouse kidney. Prophylactic administration of PL prior to B (a) P administration significantly decreased the malondialdehyde(MDA), H2O2 and xanthineoxidase (XO) levels at a significance of p<0.001, at both the doses. PL extract pretreated groups showed marked inhibition in B(a)P induced micronuclei formation in mouse bone marrow cells with simultaneous restoration of DNA integrity, viz. alkaline unwinding assay and DNA damage shown by gel-electrophoresis. HPTLC confirms the presence of quercetin in plant extract which could be responsible for PL protecting efficacy. In conclusion, the present findings strongly support the antioxidant efficacy of PL, possibly by modulation of antioxidant armory.
Branching System of the Mexican Hawthorn “Tejocote” (Crataegus Spp.)
Authors: Pérez-Ortega Sergio A. , Méndez-Santiago Antonio H. , Nieto-Angel Raúl , Jankiewicz Leszek S. 
Published: July 2013

Abstract
The architecture of the tejocote (pronounciation: tehocote) - a Mexican fruit trees is described. There is a great morphological diversity among the tejocote clones growing in Germplasm Bank of the Autonomic University of Chapingo, Mexico. The common character of all hawthorns in this bank is that the inflorescence axis dies after shedding the reproductive parts (flowers or fruits) but remains on the tree, and the growth continues from the bud situated below the dead part. The growth and ramification habit were described as long shoots showing marked apical dominance and as the complex of shoots showing week apical dominance. The non-pruned trees of tejocote clones used as fruit trees form strong natural crown. The architecture of it is similar to the “Troll’s model” of Hallé and Oldeman (1970). Metamorphosis and reiteration are relatively frequent. The inflorescence structure was described, as well as the types of thorns in clones, which have thorns. Tejocote hawthorn may probably be an interesting fruit tree for countries with warm climate and a long dry period. It is also well adapted to shallow calcareous soils.
Land-Use Changes and Their Relationships to Selected Landscape Parameters in Three Cadastral Areas in Moravia (Czech Republic)
Authors: Opršal Zdeněk , Šarapatka Bořivoj , Kladivo Petr 
Published: July 2013

Abstract
The analysis of changes in landscape use and the related significance of some natural factors is examined in this paper, using three municipal cadastral areas in Moravia, Czech Republic. The relationships between changes in the use of the rural landscape and natural conditions were analyzed with the use of GIS tools and methods of canonical correspondence analysis (CCA). The CCA results showed a correlation between the selected natural factors and landscape changes, with the most significant factors being those of slope and altitude. The CCA models exhibited varying reliability in accounting for the extent of landscape changes related to topographical diversity of the territories. Natural conditions were more influential in periods with lower change dynamics and at the same time in areas with higher topographic heterogeneity. Although the results of the statistical analyses confirmed the significance of natural factors, only a part of land use changes could be explained by their influence. Socio-economic factors are apparently the main forces affecting landscape character and change
Statistical Analysis for Prognosis of a Photochemical Smog Episode
Authors: Gavrilă Camelia , Ardelean Florinela , Coman Adriana , Burchiu Elena 
Published: July 2013

Abstract
In this paper we describe the evaluation of various climatic parameters in establishing their prognostic value in a photochemical smog episode. Our application was validated using real data from the “Cercul Militar National” and “Sos. Mihai Bravu nr. 47-49”, from April 2008 to May 2008. The study was performed on hour averages of pollutant concentrations and meteorological parameters and the statistical analysis was based on multiple regressions. We concluded by using mathematical and statistical methods, [1], that an accurate Global Solar Radiation is one of the most important and essential information in the pollution report.
The Limits of Communication
Authors: Quarry Wendy , Ramírez Ricardo 
Published: July 2013

Abstract
When asked by a Mozambican firm to assist in the development of a communication strategy for the country’s Land Law, we had doubts. We had read about the issue of ‘land grabbing’ in Africa and feared we might become part of that problem. We knew that any communication strategy devoted solely to outreach and public relations would not reach the illiterate farmer. But when the client agreed that the strategy would include a component focused on communicating with and from the small rural landowner, we accepted the contract. We worked well with the local team and delivered the product on time. However, a year later we learned that the component allowing for feedback from rural farmers had been cut, and that the strategy was yet to be implemented. What went wrong? And will the communication strategy do some good, or will it contribute to people giving up land under false promises?
Deliberation, Competition, or Practice?
Authors: Winsvold Marte 
Published: July 2013

Abstract
Several studies have found that political online debates do not to live up to deliberative standards of discussion. Even so, these debates may have democratic value. In the present article, the analytic focus is extended from deliberative democratic theory alone to a broader framework of analysis, which also includes a competitive and a participatory democratic ideal. An analytical framework for identifying democratic elements in online debates, based on these three ideals, is developed, and a sample of postings from two Norwegian newspaper-hosted online forums is explored using this new analytical framework. The analysis shows that the online debates are not particularly deliberative, but that they show ample traces of a participatory and a competitive democratic ideal, indicating that the democratic value of these online forums does not primarily lie in fostering deliberation, but rather in clarifying and contrasting different alternatives, and in providing a training ground for political debates.
The Autonomy of Scandinavian Public Service Broadcasters During Election Campaign Periods
Authors: Thorbjørnsrud Kjersti 
Published: July 2013

Abstract
This comparative case study explores the formal and informal principles governing election formats produced by the public service broadcasters in Sweden, Denmark and Norway. The focus is on external regulation vs. journalistic autonomy and on principles of balance and access. The conclusion is that the Scandinavian broadcasters, to a larger extent than broadcasters in other Western countries, independently control the form and content of their election formats. This journalistic autonomy, however, has brought about election formats governed by different principles of access. The Danish and Swedish formats are based on a moderate stopwatch logic, whereas the election formats in Norway center on criteria of audience appeal, resulting in a model of access disproportionately favoring certain political parties. The high degree of journalistic control of election formats in Scandinavia, paired with the low control of political parties encourage a discussion of some of the central premises in the Democratic Corporatist Model.
Defending Nordic Children Against Disney
Authors: Enli Gunn Sara 
Published: July 2013

Abstract
This article analyses the key strategies for serving children that were developed in Nordic public broadcasting during the first decade of 2000s, with reference to US and European parallels. The main goal is to investigate how PSB serve the children audience in an age of global competition and media convergence, and to what degree children’s content is regarded as a key to legitimacy for public broadcasters. Based on document analysis, qualitative interviews, and programme analysis, the article explores the launch Norwegian PSB niche channel for children NRK Super, both as institutional strategy and as implemented in programming. This study demonstrates that a key PSB strategy for children’s content is to reflect national culture, language, and identity, and thus represent an alternative to global niche channels such as Disney and Nickelodeon. In addition, the NRK’s children’s content is also highly influenced by the PSB strategy to reflect “cultural pluralism” (NRK 2007). A key argument in the article is that in order to be considered as relevant for children in the culturally changing Nordic societies, the pubic service broadcasters need to provide original programming, which reflect national identity and culture without ignoring the increased multiculturalism and global influences on culture.
Development of green shipping network to enhance environmental and economic performance
Authors: Lun Y.H. Venus 
Published: July 2013

Abstract
To secure cargoes, containerships operate double or triple calling of ports in the Pearl River Delta (PRD) region in China. Such shipping operations generate high CO2 emissions. This paper suggest a green shipping network (GSN) as a useful tool to transship containers from feeder ports to hub ports to lower the overall CO2 emissions in the region. From the perspective of scale operations from using the hub-and-spoke approach and the deployment of mega ships, developing a GSN within the PRD region can be beneficial, both economically and environmentally, to port users in the container transport chain.
Evaluations of port performances from a seaborne cargo supply chain perspective
Authors: Low Joyce M.W , Lam Shao Wei 
Published: July 2013

Abstract
Previous research on port efficiency focuses primarily on the provider’s perspective and assumes that maximizing the output is always desirable. This paper recognizes that maximizing the final output does not necessarily guarantee an efficient system and the notion of port efficiency and service effectiveness needs to be considered from the perspectives of both the provider and the consumer of the port service. The paper proposes a network-DEA model to evaluate the performances of 30 seaports worldwide. The concurrent consideration of efficiency scores from the network-DEA model and the traditional DEA-CCR model will offer valuable insights to port operators on how to improve port performances as part of a seaborne cargo supply chain.
Seaport network performance measurement in the context of global freight supply chains
Authors: Lee Lam Jasmine Siu , Song Dong-Wook 
Published: July 2013

Abstract
A global distribution channel with a reliable freight transport system is essential in the contemporary world economy. Acting as trade facilitators, seaports are important players in the system. The study of the role of ports in supply chain management has recently drawn increasing attention from researchers and industry professionals alike. However, prior works mainly gathered the views from ports and terminals. To the authors’ knowledge, no attempt by previous empirical studies has been made to cover the perspective from shippers and logistics providers, who are obviously taking a serious role in the process of global freight movements as major stakeholders. It becomes thus imperative to assess a port’s supply chain orientation and performance from the perspective of the port users in the supply chain. Studying ports in the network context would be even more beneficial to capture the complexity needed to understand port performance and its interaction with various stakeholders. Drawing reference from multi-disciplinary fields, this paper aims to fill in the gap by developing a so-called unified framework for analysing port’s integration in global freight supply chains including shipping line networks, hinterland and intermodal transport network, and even urban network. The framework embraces a wider group of stakeholders involved, for example, terminal operators, port authorities, shippers, shipping companies, inland transport providers, freight forwarders/logistics service providers, cities and other ports in the networks. A port that is a key node in these networks simultaneously would be able to create and sustain value for port stakeholders. Port authorities and operators can refer to the framework as their network performance indicators so as to obtain a better understanding of the various considerations in a port’s network performance and to assist in positioning the port within the complex dynamics in the context of global freight supply chains. Finally, the framework developed in the paper can serve as a guide to empirical examinations of an emerging theme - a network-oriented performance by seaports along global freight supply chains - leading to various possible channels in future research.
Singular fractional evolution differential equations
Authors: Stojanovic Mirjana 
Published: July 2013

Abstract
We give an existence-uniqueness result for linear and nonlinear time fractional evolution equations with singularities in corresponding norm in extended Colombeau algebra of generalized functions using fractional analog for Duhamel principle. Paper deals with some nonlinear models with singularities appearing in viscoelasticity and in anomalous processes which have met great interest among researchers who consider them as a challenge in recent years.