bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact factor as a metric to assess journals where OM research is published
Authors: Stonebraker Jeffrey S. , Gil Esther , Kirkwood Craig W. , Handfield Robert B. 
Published: June 2011

Highlights► We conducted an exhaustive comparison of OM journal rankings based on impact factors versus other ranking methods (113 characters) ► Impact factors are useful metrics to rank OM journals (53 characters) ► Impact factor rankings alone are not a replacement for survey‐based, citation‐based, or author‐based methods (108 characters) ► Impact factors evaluate OM journal quality from another perspective and can be used with other methods to rank OM journals (122 characters) ► Impact factors are likely to shape and influence future perception of OM journal quality (88 characters)This paper investigates impact factor as a metric for ranking the quality of journal outlets for operations management (OM) research. We review all prior studies that assessed journal outlets for OM research and compare all previous OM journal quality rankings to rankings based on impact factors. We find that rankings based on impact factors that use data from different time periods are highly correlated and provide similar rankings of journals using either two‐year or five‐year assessment periods, either with or without self‐citations. However, some individual journals have large rank changes using different impact factor specifications. We also find that OM journal rankings based on impact factors are only moderately correlated with journal quality rankings previously determined using other methods, and the agreement among these other methods in ranking the quality of OM journals is relatively modest. Thus, impact factor rankings alone are not a replacement for the assessment methods used in previous studies, but rather they evaluate OM journals from another perspective.
The social nature of the mother's tie to her child: John Bowlby's theory of attachment in post-war America
Authors: VICEDO MARGA 
Published: June 2011

AbstractThis paper examines the development of British psychiatrist and psychoanalyst John Bowlby's views and their scientific and social reception in the United States during the 1950s. In a 1951 report for the World Health Organization Bowlby contended that the mother is the child's psychic organizer, as observational studies of children worldwide showed that absence of mother love had disastrous consequences for children's emotional health. By the end of the decade Bowlby had moved from observational studies of children in hospitals to animal research in order to support his thesis that mother love is a biological need. I examine the development of Bowlby's views and their scientific and social reception in the United States during the 1950s, a central period in the evolution of his views and in debates about the social implications of his work. I argue that Bowlby's view that mother love was a biological need for children influenced discussions about the desirability of mothers working outside the home during the early Cold War. By claiming that the future of a child's mind is determined by her mother's heart, Bowlby's argument exerted an unusually strong emotional demand on mothers and had powerful implications for the moral valuation of maternal care and love.
Vitamin D status has a linear association with seasonal infections and lung function in British adults
Authors: Berry Diane J. , Hesketh Kathryn , Power Chris , Hyppönen Elina 
Published: June 2011

Higher vitamin D concentrations have been proposed as a protective ‘seasonal stimulus’ against influenza, and there are suggestions for associations with other aspects of respiratory health. The aim of the present study was to investigate the relationship of current vitamin D status (measured by 25-hydroxyvitamin D, 25(OH)D) with respiratory infections and lung function. We used cross-sectional data from 6789 participants in the nationwide 1958 British birth cohort who had measurements of 25(OH)D, lung function (forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC)) and respiratory infections available from the age of 45 years. In this population, the prevalence of respiratory infections had a strong seasonal pattern in the opposite direction to the pattern for 25(OH)D concentrations. Each 10 nmol/l increase in 25(OH)D was associated with a 7 % lower risk of infection (95 % CI 3, 11 %) after adjustment for adiposity, lifestyle and socio-economic factors. For FEV1and FVC, each 10 nmol/l increase in 25(OH)D was associated with 8 (95 % CI 3, 13) ml and 13 (95 % CI 7, 20) ml higher volume, respectively, after controlling for covariates. Associations of 25(OH)D with FEV1and FVC were only slightly attenuated after further adjustment for infection and other respiratory illness. In conclusion, vitamin D status had a linear relationship with respiratory infections and lung function. Randomised controlled trials are warranted to investigate the role of vitamin D supplementation on respiratory health and to establish the underlying mechanisms.
The Mystery of Property Rights: A U.S. Perspective
Authors: Lamoreaux Naomi R. 
Published: June 2011

Economic development requires both secure property rights and the ability to reallocate property in response to technological and other changes. Significant reallocations have occurred repeatedly throughout U.S. history and have often been involuntary. This essay considers the question of how property rights can be subject to frequent involuntary reallocation and still be considered secure.“Upon the sacredness of property civilization itself depends—the right of the laborer to his hundred dollars in the savings bank, and equally the legal right of the millionaire to his millions.”1Andrew Carnegie
Repairing a Mortgage Crisis: HOLC Lending and Its Impact on Local Housing Markets
Authors: Courtemanche Charles , Snowden Kenneth 
Published: June 2011

Between 1933 and 1936 the Home Owners’ Loan Corporation purchased more than a million delinquent mortgages from private lenders and refinanced those loans for the borrowers. Its primary goal was to break the cycle of foreclosure, forced property sales and decreases in home values that was affecting local housing markets throughout the nation. We find that the volume of HOLC lending was related to measures of distress in local (county-level) housing markets and that these interventions increased 1940 median home values and homeownership rates, but not new home building.“[A] tremendous surge of residential building in the [last] decade… was matched by an ever-increasing supply of homes sold on easy terms [and only]… a small decline in prices was necessary to wipe out this equity. Unfortunately, deflationary processes are never satisfied with small declines in values. They feed upon themselves and produce results out of all proportion to their causes… In the field of real estate finance, particularly, we have depended so much upon credit that our whole value structure can be thrown out of balance by relatively slight shocks. When such a delicate structure is once disorganized, it is a tremendous task to get it into a position where it can again function normally.”1Henry Hoagland, 1935
Thrifty Pensioners: Pensions and Savings in France at the Turn of the Twentieth Century
Authors: Bourdieu Jérôme , Kesztenbaum Lionel , Postel-Vinay Gilles 
Published: June 2011

Building on a large sample of elderly French individuals, we evaluate the resources that were available to the old. We find that a considerable percentage of the French population did not have sufficient assets to live off of when aged. We compare the savings behaviors of pensioners and non-pensioners at a time when only a small part of the labor force was entitled to a pension. We show that pensioners were better able to accumulate wealth than were non-pensioners, even when we take into account their occupation and inherited wealth.“Oh! La misère des vieux sans pain, des vieux sans espoir, sans enfants, sans argent, sans rien autre chose que la mort devant eux, y pensons-nous? Y pensons-nous, aux vieux affamés des mansardes? Pensons-nous aux larmes de ces yeux ternes qui furent brillants, émus et joyeux, jadis?”1Guy de Maupassant
The Spinning Jenny and the Industrial Revolution: A Reappraisal
Authors: Gragnolati Ugo , Moschella Daniele , Pugliese Emanuele 
Published: June 2011

Why was the Industrial Revolution British? In a recent article published in this Journal, Robert Allen argues that only in England was the price of labor relative to capital high enough to justify the adoption of the labor-saving technologies which characterized the Industrial Revolution.1 To support his argument, he uses the spinning jenny as a case study. The jenny was indeed an important labor-saving technology that was invented and widely adopted in England but not in France. Allen explains this fact by calculating the returns to adopting the jenny in each country: according to his calculations the jenny was profitable in England but not in France.The present note shows that Allen's conclusions rest on implausible profitability computations. In particular, Allen assumes that output remains constant after the adoption of the jenny while hours worked decrease dramatically. From a theoretical perspective, this is equivalent to an assumption that hours worked move inversely with the marginal product of labor. As soon as these restrictive assumptions are abandoned, the jenny turns out being profitable both in England and in France. Hence the mystery of the adoption of the jenny during the Industrial Revolution remains.
Irrational Diversification: An Examination of Individual Portfolio Choice
Authors: Baltussen Guido , Post Gerrit T. 
Published: June 2011

AbstractWe study individual portfolio choice in a laboratory experiment and find strong evidence for heuristic behavior. The subjects tend to focus on the marginal distribution of an asset, while largely ignoring its diversification benefits. They follow a conditional 1/n diversification heuristic as they exclude the assets with an “unattractive” marginal distribution and divide the available funds equally between the remaining “attractive” assets. This strategy is applied even if it leads to allocations that are dominated in terms of first-order stochastic dominance and is clearly irrational. In line with these findings, we find that framing and problem presentation have substantial influence on portfolio decisions.
Bank Loans with Chinese Characteristics: Some Evidence on Inside Debt in a State-Controlled Banking System
Authors: Bailey Warren , Huang Wei , Yang Zhishu 
Published: June 2011

AbstractWe study a transitional economy where state-controlled banks make loan decisions based on noisy inside information on prospective borrowers, and may lend to avert unemployment and social instability. In China, poor financial performance and high managerial expenses increase the likelihood of obtaining a bank loan, and bank loan approval predicts poor subsequent borrower performance. Negative event study responses occur at bank loan announcements, particularly for borrowers measuring poorly on quality and creditworthiness, or for lenders or borrowers involved in litigation regarding loans. Our results highlight dilemmas in a state-led financial system and the local stock market’s sophistication in interpreting news.
Institutions and Corporate Investment: Evidence from Investment-Implied Return on Capital in China
Authors: Liu Qiao , Siu Alan 
Published: June 2011

AbstractWe assess the impact of institutions on Chinese firms’ corporate investment in an investment Euler equation framework. We allow the variables measuring institutions to affect the rate at which firm managers discount future investment payoffs. Applying generalized method of moments estimators to large samples of Chinese firms, we estimate the stochastic discount rates derived from actual investment and examine how they vary across institutional variables. We document robust evidence that ownership is the primary institutional factor affecting corporate investment in China. The derived discount rate for a nonstate firm is approximately 10 percentage points higher than that of an otherwise equal state firm. State firms tend to use higher discount rates to invest after they are partially privatized. We also find that firms with higher levels of corporate governance use higher discount rates to make investment.
The Determinants of Operational Risk in U.S. Financial Institutions
Authors: Chernobai Anna , Jorion Philippe , Yu Fan 
Published: June 2011

AbstractWe examine the incidence of operational losses among U.S. financial institutions using publicly reported loss data from 1980 to 2005. We show that most operational losses can be traced to a breakdown of internal control, and that firms suffering from these losses tend to be younger and more complex, and have higher credit risk, more antitakeover provisions, and chief executive officers (CEOs) with higher stock option holdings and bonuses relative to salary. These findings highlight the correlation between operational risk and credit risk, as well as the role of corporate governance and proper managerial incentives in mitigating operational risk.
Probabilistic map merging for multi-robot RBPF-SLAM with unknown initial poses
Authors: Lee Heon-Cheol , Lee Seung-Hwan , Choi Myoung Hwan , Lee Beom-Hee 
Published: June 2011

SUMMARYThis paper addresses the map merging problem, which is the most important issue in multi-robot simultaneous localization and mapping (SLAM) using the Rao–Blackwellized particle filter (RBPF-SLAM) with unknown initial poses. The map merging is performed using the map transformation matrix and the pair of map merging bases (MMBs) of the robots. However, it is difficult to find appropriate MMBs because each robot pose is estimated under multi-hypothesis in the RBPF-SLAM. In this paper, probabilistic map merging (PMM) using the Gaussian process is proposed to solve the problem. The performance of PMM was verified by reducing errors in the merged map with computer simulations and real experiments.
Two-state trajectory tracking control of a spherical robot using neurodynamics
Authors: Cai Yao , Zhan Qiang , Yan Caixia 
Published: June 2011

SUMMARYSpherical robot is a special kind of nonholonomic system that cannot be converted to chained form, which means most of the well-known control methodologies are not suitable for this system. For the trajectory tracking of BHQ-1, a spherical robot designed by our lab, a two-state trajectory tracking controller is proposed in this paper. First, the kinematic model of the robot is built using screw theory and exponential method and the controllability is proved based on the differential geometric control theory. Then to solve the two-state trajectory tracking problem of BHQ-1, a shunting model of neurodynamics and Lyapunov's direct method are combined to design a two-state trajectory tracking controller, of which the Lyapunov stability is validated. Finally, typical simulation examples, such as tracking linear, circular, and sinusoidal trajectories, are introduced to verify the effectiveness of the proposed controller. In this paper the proposed method can also be applied to the control of other spherical robots.
Victories fastened in grammar: historical documentation of Irish English
Authors: McCafferty Kevin 
Published: June 2011

In ‘Murdering the language’ Moya Cannon imagines Ireland as a shore washed over by human tides. Each invasion added fresh layers to landscape, community and language, until:[…] we spoke our book of invasions –an unruly wash of Victorian pedantry,Cromwellian English, Scots,the jetsam and the beached bones of Irish –a grammarian's nightmare. (Cannon, 2007: 88)
Bimanual-Vertical Hand Movements
Authors: Kwon Jay C. , Cohen Matthew L. , Williamson John , Burtis Brandon , Heilman Kenneth M. 
Published: June 2011

AbstractPatients often demonstrate attentional and action-intentional biases in both the transverse and coronal planes. In addition, when making forelimb movements in the transverse plane, normal participants also have spatial and magnitude asymmetries, but forelimb spatial asymmetries have not been studied in coronal space. Thus, to learn if when normal people make vertical movements they have right–left spatial and magnitude biases, seventeen healthy, blindfolded volunteers had their hands (holding pens) placed vertically in their midsagittal plane, 10 inches apart, on pieces of paper positioned above, below, and at eye-level. Participants were asked to move their hands together vertically and meet in the middle. Participants demonstrated less angular deviation in the below-eye condition than in the other spatial conditions, when moving down than up, and with their right than left hand. Movements toward eye level from upper or lower space were also more accurate than movements in the other directions. Independent of hand, lines were longer with downward than upward movements and the right hand moved more distance than the left. These attentional-intentional asymmetries may be related to gravitational force, hand-hemispheric dominance, and spatial “where” asymmetries; however, the mechanisms accounting for these asymmetries must be ascertained by future research. (JINS, 2011,17, 732–739)
SNIPER SHOT PEGylation: TGase mediated site-specific conjugation of PEG to proteins
Authors: Satwekar Abhijeet 
Published: June 2011

AbstractCommercially available recombinant protein drugs often cause immune reactions in the body which reduces their efficiency. Protein drugs can be PEGylated, (attachment of polyethylene glycol) to overcome this problem. PEGylation increases bioavailability by reduced immune reactions and decreased renal clearance [1]. So far the traditional approaches for PEGylation involve harsh reaction conditions which provide a heterogeneous product (PEG attached randomly to different sites) along with the formation of several byproducts. Due to heterogeneity, the PEGylated protein drug faces challenge for FDA approval. Therefore, there is an immense need to develop an approach which could generate a homogeneous PEGylated protein drug.The transglutaminase (TGase) is an enzyme which catalyzes specifically the formation of a covalent bond (-CONH-) between the glutamine residue and the amine group of the lysine. This TGase reaction can be engineered by substituting the lysine with primary amines, which results in the formation of a similar covalent bond between the glutamine and the primary amine [2]. We utilized the specificity of TGase by using primary PEG-amines for conjugation with the glutamine present in the model protein (apomyoglobin). The reaction conditions were optimized in order to get a mono-conjugated PEGylated derivative. The site of conjugation was determined by affinity purification of the modified peptides and characterized by the ESI Q-TOF mass spectrometer. Therefore, we were able to develop a site-specific PEGylated apomyoglobin without byproducts, which eventually reduced the derivative purification steps as compared with the traditional PEGylation approaches. This strategy was further implemented on commercial pharmaceutical proteins.
SBGN-PD: Current status, future changes and unresolved issues
Authors: Moodie Stuart 
Published: June 2011

AbstractSBGN PD is currently at Level 1 Version 1.2, which is a maintenance release. The next release will be L1 Version 2.0, which will incorporate changes to the state glyph, add the annotation glyph and change the semantics of complex sub-units. These issues may be discussed further as will some unresolved issues in the specification.
A modelling study of beta-amyloid induced change in hippocampal theta rhythm
Authors: Zou Xin , Coyle Damien , Wong-Lin KongFatt , Maguire Liam 
Published: June 2011

AbstractMany dementia cases, such as Alzheimer’s disease (AD), are characterized by an increase in low frequency field potential oscillations. However, a definitive understanding of the effects of the beta-Amyloid peptide, which is a main marker of AD, on the low frequency theta rhythm (4-7Hz) is still unavailable. In this work, we investigate the neural mechanisms associated with beta-Amyloid toxicity using a conductance-based neuronal network model of the hippocampus CA1 region. We simulate the effects of beta-Amyloid on the A-type fast inactivating K+ channel by modulating the maximum conductance of the current in pyramidal cells, denoted by gA. Our simulation results demonstrate that as gA decreases (through A[beta]blockage), the theta band power first increases then decreases. Thus there exists a value of gA that maximizes the theta band power. The neuronal and network mechanism underlying the change in theta rhythm is systematically analyzed. We show that the increase in theta power is due to the improved synchronization of pyramidal neurons, and the theta decrease is induced by the faster depolarisation of pyramidal neurons.
A Novel Thermodynamic Method For Quantifying Ligand-Receptor Interactions: The IC (1/3) Standard Vs IC (50)
Authors: Prasad Sudarsan 
Published: June 2011

AbstractA method based on the Concentration Derivative Product (CDP) is proposed to analyze the thermodynamics of Drug-Receptor interactions. CDP is defined as the product of the fractional inhibition f and it’s concentration derivative. Assuming Michaelis-Menten kinetics, it is shown that for a number of drug-receptor systems (HIV protease, ACE, HMG-CoA, Opioid receptor inhibitors, etc.) f max = 0.333, irrespective of the nature of bonding interactions and Ki. The CDP max = [4 / ( 27 Ki ) ], and gives a measure of the drug potency directly. CDP also gives thermodynamic information about the ratio of the gradients of the inhibitor chemical potential in the free and bound states.