bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Quest for Nanoscale Magnets: The example of [Mn12] Single Molecule Magnets
Authors: Rogez Guillaume , Donnio Bertrand , Terazzi Emmanuel , Gallani Jean‐Louis , Kappler Jean‐Paul , Bucher Jean‐Pierre , Drillon Marc 
Published: July 2009

AbstractRecent advances on the organization and characterization of [Mn12] single molecule magnets (SMMs) on a surface or in 3D are reviewed. By using nonconventional techniques such as X‐ray magnetic circular dichroism (XMCD) and scanning tunneling microscopy (STM), it is shown that [Mn12]‐based SMMs deposited on a surface lose their SMM behavior, even though the molecules seem to be structurally undamaged. A new approach is reported to get high‐density information‐storage devices, based on the 3D assembling of SMMs in a liquid crystalline phase. The 3D nanostructure exhibits the anisotropic character of the SMMs, thus opening the way to address micrometric volumes by two photon absorption using the pump‐probe technique. We present recent developments such as µ‐SQUID, magneto‐optical Kerr effect (MOKE), or magneto‐optical circular dichroism (MOCD), which enable the characterization of SMM nanostructures with exceptional sensitivity. Further, the spin‐polarized version of the STM under ultrahigh vacuum is shown to be the key tool for addressing not only single molecule magnets, but also magnetic nano‐objects.
Banning subtherapeutic antibiotics in U.S. swine production: a simulation of impacts on industry structure
Authors: Hogberg Michael G. , Raper Kellie Curry , Oehmke James F. 
Published: July 2009

AbstractRecent discussions of a subtherapeutic antibiotic ban in U.S. livestock gives rise to much speculation regarding industry impacts. Swine producers are heterogeneous; thus, a ban on subtherapeutic antibiotics could affect producers of different sizes, cost structures, different production systems and management styles differently. The authors combine average cost data with physical production data to simulate the impact of a subtherapeutic antibiotics ban on high, middle, and low‐cost producers in different types of swine production operations. Their results suggest that although economies of scale would still be important, the ban would potentially limit or reduce economies of scale in the swine industry. [JEL Codes: L11, Q12, Q13]. © 2009 Wiley Periodicals, Inc.
Consumer preference for production‐derived quality: analyzing perceptions of premium chicken production methods
Authors: Innes Brian , Cranfield John 
Published: July 2009

AbstractThe authors assess consumer interest in a food product containing production‐derived attributes. They use the French Label Rouge system in the Ontario chicken market as an example of a producer‐controlled quality system. Conjoint analysis reveals a significant proportion of respondents value nonprice attributes; medication and housing had the highest importance scores, followed by price and brand ownership. Cluster analysis of the part‐worth utilities revealed three consumer segments: price conscious consumers; consumers focused on naturalness; and those focused on animal health. Segments do not appear to differ on the basis of socioeconomic and demographic profile of respondents. However, multiitem scales reflecting attitudes towards production systems vary significantly across segments. Price‐conscious respondents show agreement with use of medication and express concern over quality. Respondents in the naturalness segment express concern over quality, locality of production and impact of production methods on own health. Animal‐health‐conscious respondents show agreement with the use of medications, concern over quality, locality and impact of production methods on own health, but neutrality towards byproducts and traditional production methods. [EconLit citations: D120, Q130]. © 2009 Wiley Periodicals, Inc.
The Monday effect in U.S. cotton prices
Authors: Keef Stephen P. , Zhu Hui 
Published: July 2009

AbstractThere is an extensive literature on the Monday effect with stock indices. It is regularly reported that the return on Monday is correlated with the return on the prior Friday. The bad Monday effect occurs when the return on the preceding Friday is negative. Cotton is an economically important commodity in the United States and around the world. This investigation into the daily price seasonality in the U.S. cotton market is based on spot prices from Memphis and futures prices from the New York Cotton Exchange. The regression methodologies employ adjustments to control for undesirable properties in the error terms. There are three main conclusions. First, the close‐to‐close changes in the futures price and in the spot price exhibit a negative Monday effect. Second, a negative bad Monday effect is observed on Mondays using close‐to‐close prices. The effect is present during the weekend nontrading period and continues into trading on Mondays. Third, the negative bad Monday effect does not appear to weaken in close‐to‐close prices and during the weekend over the period examined (1987–2003). However, there is weak evidence of a temporal decline during trading on Mondays. [EconLit Citations: G12, G14, Q14]. © 2009 Wiley Periodicals, Inc.
Evaluating the effectiveness of generic advertising versus nonadvertising marketing activities on New York State milk markets
Authors: Zheng Yuqing , Kaiser Harry M. 
Published: July 2009

AbstractThis study distinguishes nonadvertising marketing activities from generic advertising and investigates their separate impacts on the retail demand for fluid milk in New York State. Advertising, having an estimated elasticity (of demand) of 0.038 using panel data, is found to be about five times as effective as nonadvertising; therefore, it remains the more powerful marketing tool. Such results have policy implications in benefit‐cost analysis and optimal allocation of fluid‐milk check‐off funds. Our results suggest that NYS dairy producers have much to gain from investing more of their check‐off budgets in advertising. [EconLit citations: Q11, M37]. © 2009 Wiley Periodicals, Inc.
Potato demand in an increasingly organic marketplace
Authors: Hsieh Ming‐Feng , Mitchell Paul D. , Stiegert Kyle W. 
Published: July 2009

AbstractThe authors investigate pricing and demand issues for four fresh potato categories (russet, red, white, and minor colored), organic fresh potatoes, and two processed potato categories (frozen/refrigerated and dehydrated) using a nonlinear generalized almost ideal demand system (GAIDS) that is closed under unit scaling (CUUS). The model used regionally aggregated at‐home consumption data from 2000 to 2005. Estimated uncompensated own price elasticities for fresh potatoes were highly significant and ranged between −0.5 and −1.6. The study was designed to capture the effects of the aggregate organic market on the prices, expenditures, and demand for each potato category. Organic food market penetration elasticities suggest that specialty potatoes (organic and minor‐colored) are particularly well positioned if demands for organic products continue to rise, red potatoes are not well positioned and evidence of the early warning signs of slippage in market share for white and russet potatoes may exist. Producers and promoters of conventional potato products should account for the increasingly important role of organic products in making decisions. As an auxiliary exercise, we also statistically sourced the variance of the organic potato price premium relative to the other four fresh potato prices. At the present time, the variability of the organic potato premium is not much affected by production costs or other supply‐related factors: the premium variability was driven largely by demand, and demographic/seasonal factors. Producers should be cautious about shifting to organic potato production until lower cost practices emerge. [JEL Codes: D120, Q130, Q180]. © 2009 Wiley Periodicals, Inc.
Consumer willingness to pay for locally grown products: the case of South Carolina
Authors: Carpio Carlos E. , Isengildina‐Massa Olga 
Published: July 2009

AbstractA contingent valuation framework is used to evaluate South Carolina consumers' willingness to pay for the “locally grown” characteristic (defined here as South Carolina grown) in produce and animal products and to identify the sociodemographic characteristics affecting consumer preferences for this characteristic. Findings show that South Carolina consumers are willing to pay an average premium of 27% for local produce and 23% for local animal products. Premiums for local products are influenced by age, gender, and income as well as by perceived product quality, a desire to support the local economy, patronage of farmers markets, and consumer ties to agriculture. [JEL Categories: D12, Q13]. © 2009 Wiley Periodicals, Inc.
An analysis of transaction costs of Islamic banks in rural Iran
Authors: Hosseini S. Safdar , Khaledi Mohammed , Gray Richard 
Published: July 2009

AbstractThis study measures transaction costs of obtaining credit from Islamic banks. Data were collected from rural households in Iran. The factors affecting transaction costs and the probability of accessing Islamic financial markets are investigated. Similar to conventional financial institutions found in other developing countries, Iranian banks impose high transaction costs that limit poor rural household access to credit. The results reveal that the transaction costs of gaining credit are on average equivalent to an additional 13.8% annual interest cost. The contractual form, the size of credit, the borrower distance from a financial center, and the experience and education level of the borrower are important determinants of the transactions costs. [EconLit Citations: D230, R510, G210]. © 2009 Wiley Periodicals, Inc.
Charged soc metal‐organic framework for high‐efficacy H2 adsorption and syngas purification: Atomistic simulation study
Authors: Jiang Jianwen 
Published: July 2009

AbstractH2 adsorption and syngas purification in charged soc metal‐organic framework are investigated using atomistic simulations. As experimentally observed, the extraframework NO3− ions are entrapped in carcerand‐like capsule with negligible mobility. At low pressure, H2 adsorption occurs concurrently at multiple sites near the exposed indium atoms and organic components. The capsule is accessible at high pressure through the surrounding channels by restricted windows. Adsorption sites identified are remarkably consistent with inelastic neutron scattering measurements. The isotherm and isosteric heat of H2 adsorption predicted match well with experimental data. As loading rises, the isosteric heat remains nearly constant, revealing the homogeneity of adsorption sites. CO2/H2 selectivity in syngas adsorption is up to 600 and substantially higher than other nanoporous materials. With a trace of H2O, the selectivity increases slightly at low pressure due to promoted adsorption of CO2 by H2O bound proximally to the exposed indium atoms, but decreases at high pressure as a consequence of competitive adsorption of H2O over CO2. © 2009 American Institute of Chemical Engineers AIChE J, 2009
Estimation of an effective water diffusion coefficient during infrared‐convective drying of a polymer solution
Authors: Allanic N. , Salagnac P. , Glouannec P. , Guerrier B. 
Published: July 2009

AbstractThis article deals with the drying of an aqueous solution of polyvinyl alcohol mixed with a plasticizer. A heating combining forced convection and short‐infrared radiation was investigated. A one‐dimensional model taking into account the shrinkage of the product was developed to get the temperature and moisture content evolutions during the drying. The water diffusion coefficient was estimated by an inverse method. A sensitivity analysis and numerical tests showed the relevance of using an objective function taking both mass and temperature measurements into account for the estimation procedure. This estimation was performed on several convective and infrared‐convective experimental drying kinetics. The model predictions fit well mass and temperature experimental data. © 2009 American Institute of Chemical Engineers AIChE J, 2009
Nonfatal work‐related motor vehicle injuries treated in emergency departments in the United States, 1998–2002
Authors: Chen Guang X. 
Published: July 2009

AbstractBackgroundCurrent data on nonfatal work‐related motor vehicle injuries are limited and fragmented, often excluding government workers, self‐employed workers, and workers on small farms. This study seeks to bridge the present data gap by providing a national profile of nonfatal work‐related motor vehicle injuries across all industries and occupations.MethodsStudy subjects were people who suffered nonfatal work‐related motor vehicle injuries and were treated in a hospital emergency department in the United States. Subjects were identified from a stratified probability sample of emergency departments. National estimates and rates were computed.ResultsFrom 1998 to 2002, the average annual rate of nonfatal work‐related motor vehicle injuries was 7 injuries per 10,000 full‐time equivalents. The rate was three times higher in men than in women. The rates were higher in workers 15–19 years of age and in workers 70 years or older. Justice, public order, and safety workers had the largest number of injuries, and taxicab service employees had the highest injury rate of all industries. Truck drivers had the largest number of injuries, and police and detectives, public service employees had the highest injury rate of all occupations.ConclusionFuture efforts need to develop and enhance the use of surveillance information at the federal and state level for work‐related nonfatal motor vehicle injuries. Prevention efforts need to address occupational motor vehicle safety for both commercial truck/bus drivers and workers who are not commercial drivers but who drive light motor vehicles on the job. Am. J. Ind. Med. 52:698–706, 2009. © 2009 Wiley‐Liss, Inc.
The spectra of clinical phenotypes in aplasia cutis congenita and terminal transverse limb defects
Authors: Snape Katie M.G. , Ruddy Deborah , Zenker Martin , Wuyts Wim , Whiteford Margo , Johnson Diana , Lam Wayne , Trembath Richard C. 
Published: July 2009

AbstractThe combination of aplasia cutis congenita (ACC) and terminal transverse limb defects (TTLD) is often referred to as the eponymous Adams–Oliver syndrome (AOS). The molecular basis of this disorder remains unknown, although the common occurrence of cardiac and vascular anomalies suggests a primary defect of vasculogenesis. Through the description of three previously unreported affected individuals, ascertained through the Adams–Oliver Syndrome European Consortium, we illustrate the phenotypic variability characteristically observed within extended families with AOS. Taken in combination with a detailed review of the available literature, we provide evidence for distinct clinical entities within the ACC/TTLD spectrum, which may reflect genetic heterogeneity within this spectrum of disorders. © 2009 Wiley‐Liss, Inc.
Developmental anomalies with features of disorganization (Ds) and amniotic band sequence (ABS): A report of four cases
Authors: Purandare Smita M. , Ernst Linda , Medne Livija , Huff Dale , Zackai Elaine H. 
Published: July 2009

AbstractDisorganization (Ds) is a mouse mutant in which heterozygotes manifest defects in various organ systems including cranioschisis, hamartomas, limb abnormalities, body wall defects, eye defects, and craniopharyngeal defects. We report four patients with developmental anomalies that are seen in amniotic band sequence (ABS) with additional anomalies that could not be explained by amniotic bands alone. The anomalies seen in our patients included facial malformation and clefting, brain anomalies (encephalocele, agenesis of the corpus callosum, holoprosencephaly), eye anomalies (anophthalmia, microphthalmia, and microcornea), and extremity and digit anomalies (talipes equinovarus, absent/hypoplastic phalanges, amputation of an extremity, syndactyly, polydactyly, and anomalous attachment of an extremity). Other systems involved include genitourinary anomalies (hydronephrosis and abnormal testes, epidydimis and seminal vesicles), and skin appendages similar to those seen in Ds mice. Presence of amniotic bands in addition to malformations not attributed to amniotic bands, were seen in three of four patients. The four patients in this report have involvement of at least four organ systems including the skin appendages that have been reported in the Ds mouse and have clinical findings that overlap the spectrum of Ds and ABS. © 2009 Wiley‐Liss, Inc.
A novel de novo 27 bp duplication of the ARX gene, resulting from postzygotic mosaicism and leading to three severely affected males in two generations
Authors: Reish Orit , Fullston Tod , Regev Miriam , Heyman Eli , Gecz Jozef 
Published: July 2009

AbstractThe Aristaless Related Homeobox (ARX) gene is a Q50 paired homeobox gene. These genes are important regulators of essential events during vertebrate embryogenesis, including the development of the central and peripheral nervous system. Mutations in ARX have been identified in at least 82 different families and sporadic cases, and are responsible for at least 8 clinically distinct disorders. The recurrent 24 bp duplication (dup) mutation, c.429_452dup(24 bp), is the most frequent ARX mutation, which accounts for 45% of all cases reported to date. Here we report a novel de novo, familial dup mutation of 27 bp, c.430_456dup(27 bp), which involves the same region of the ARX gene in exon 2, as the dup24 bp mutation. The female progenitor of this dup27 bp allele exhibits mosaicism, likely resulting from a postmitotic de novo mutation event early in embryonic development. Three males with the dup27 bp mutation presented with infantile spasms, two of whom died early in life. Their phenotype appeared more severe, when compared to the spectrum of clinical presentations associated with the dup24 bp mutation. We propose that this might be at least partly due to the single, extra alanine residue (A) (21A in dup27 vs. 20A in dup24), which takes polyalanine tract 2 of ARX beyond the maximum, naturally occurring limit of 20A found in the human genome. © 2009 Wiley‐Liss, Inc.
Adams–Oliver syndrome: Additions to the clinical features and possible role of BMP pathway
Authors: Baskar Shankar , Kulkarni Muralidhar Laxmanrao , Kulkarni Akhil Muralidhar , Vittalrao Suhasini , Kulkarni Preethi Muralidhar 
Published: July 2009

AbstractWe report on a patient with Adams–Oliver syndrome, a condition characterized by scalp and limb defects. In addition we noted in our patient a significant delay in the bone age and an abnormal distal phalanx in one of her fingers manifesting clinically as a broad finger tip. Both these features hitherto unreported add to the phenotypic spectrum of the condition. The underlying etiopathogenesis of this condition has remained in the domain of hypothesis, with none being conclusive. Based on the characteristic features of AOS and our report of delayed bone age, we postulate a role played by the bone morphogenetic protein pathway in the causation of this enigmatic condition. In the background of this postulation and the report of an unusual hand anomaly, a literature review on the various pathogenetic mechanisms and anomalies of the hand reported in AOS is presented. © 2009 Wiley‐Liss, Inc.
The efficacy, safety, and tolerability of donepezil for the treatment of young adults with Down syndrome
Authors: Kishnani Priya S. , Sommer Barbara R. , Handen Benjamin L. , Seltzer Benjamin , Capone George T. , Spiridigliozzi Gail A. , Heller James H. , Richardson Sharon , McRae Thomas 
Published: July 2009

AbstractThe objective of our study was to assess the efficacy and safety of donepezil in young adults with Down syndrome (DS) but no evidence of Alzheimer disease (AD). A 12‐week, randomized, double‐blind, placebo‐controlled study with a 12‐week, open‐label extension was conducted. The intervention consisted of donepezil (5–10 mg/day) in young adults (aged 18–35 years) with DS, but no AD. The primary measure was the Severe Impairment Battery (SIB) test and secondary measures were the Vineland Adaptive Behavior Scales (VABS), the Rivermead Behavioral Memory Test for Children, and the Clinical Evaluation of Language Fundamentals, Third Edition. At baseline, 123 subjects were randomly assigned treatment with donepezil or placebo. During the double‐blind phase, SIB scores improved significantly from baseline in both groups, with no significant between‐group differences. During the open‐label phase, SIB scores in the original donepezil group remained stable; the original placebo group showed an improvement similar to that seen in the double‐blind phase. VABS scores improved for donepezil, but not placebo, during the double‐blind phase (observed cases, P = 0.03; last observation carried forward, P = 0.07). Post hoc responder analyses were significant for donepezil using three of five response definitions (P ≤ 0.045). Adverse event rates were comparable to AD studies. In this first large‐scale, multicenter trial of a pharmacological agent for DS, donepezil appears safe. Efficacy interpretation was limited for the primary measure due to apparent learning/practice and ceiling effects. Outcomes in post hoc analyses suggested efficacy in some, but not all subjects, consistent with phenotypic variability of DS. Additional studies are required to confirm potential benefits of donepezil in this population. © 2009 Wiley‐Liss, Inc.
A large X‐chromosomal deletion is associated with microphthalmia with linear skin defects (MLS) and amelogenesis imperfecta (XAI)
Authors: Hobson Grace M. , Gibson Carolyn W. , Aragon Melissa , Yuan Zhi‐an , Davis‐Williams Angelique , Banser Linda , Kirkham Jennifer , Brook Alan H. 
Published: July 2009

AbstractA female patient is described with clinical symptoms of both microphthalmia with linear skin defects (MLS or MIDAS) and dental enamel defects, having an appearance compatible with X‐linked amelogenesis imperfecta (XAI). Genomic DNA was purified from the patient's blood and semiquantitative multiplex PCR revealed a deletion encompassing the amelogenin gene (AMELX). Because MLS is also localized to Xp22, genomic DNA was subjected to array comparative genomic hybridization, and a large heterozygous deletion was identified. Histopathology of one primary and one permanent molar tooth showed abnormalities in the dental enamel layer, and a third tooth had unusually high microhardness measurements, possibly due to its ultrastructural anomalies as seen by scanning electron microscopy. This is the first report of a patient with both of these rare conditions, and the first description of the phenotype resulting from a deletion encompassing the entire AMELX gene. More than 50 additional genes were monosomic in this patient. © 2009 Wiley‐Liss, Inc.