bluuebunny/crossref_metadata_2025_split huggingface dataset:
Venous thromboembolism: deep venous thrombosis and pulmonary embolism in a neurosurgical population
Authors: Khaldi Ahmad , Helo Naseem , Schneck Michael J. , Origitano Thomas C. 
Published: September 2010

Object
Venous thromboembolism (VTE), a combination of deep venous thrombosis (DVT) and pulmonary embolism (PE), is a major cause of morbidity and death in neurosurgical patients. This study evaluates 1) the risk of developing lower-extremity DVT following a neurosurgical procedure; 2) the timing of initiation of pharmacological DVT prophylaxis upon the occurrence of VTE; and 3) the relationship between DVT and PE as related to VTE prophylaxis in neurosurgical patients.

Methods
The records of all neurosurgical patients between January 2006 and December 2008 (2638 total) were reviewed for clinical documentation of VTE. As part of a quality improvement initiative, a subgroup of 1638 patients was studied during the implementation of pharmacological prophylaxis. A high-risk group of 555 neurosurgical patients in the intensive care unit underwent surveillance venous lower-extremity duplex ultrasonography studies twice weekly. All patients throughout the review received mechanical DVT prophylaxis. Pharmacological DVT prophylaxis, consisting of 5000 U of subcutaneous heparin twice daily (initially started within 48 hours of a neurosurgical procedure and subsequently within 24 hours of a procedure) was implemented in combination with mechanical prophylaxis. The DVT and PE rates were calculated for each group.

Results
In the surveillance group (555 patients), 84% of the DVTs occurred within 1 week and 92% within 2 weeks of a neurosurgical procedure. There was a linear correlation between the duration of surgery and DVT development. The use of subcutaneous heparin reduced the rate of DVT from 16% to 9% when medication was given at either 24 or 48 hours postoperatively, without any increase in hemorrhagic complications. In the overall group (2638 patients), there were 94 patients who exhibited clinical signs of a possible PE and therefore underwent spiral CT; 22 of these patients (0.8%) had radiological confirmation of PE. There was no correlation between the use of pharmacological prophylaxis at either time point and the occurrence of PE, despite a 43% reduction in the lower-extremity DVT rate with pharmacological intervention.

Conclusions
The majority of DVTs occurred within the first week after a neurosurgical procedure. There was a linear correlation between the duration of surgery and DVT occurrence. Use of early subcutaneous heparin (at either 24 or 48 hours) was associated with a 43% reduction of developing a lower-extremity DVT, without an increase in surgical site hemorrhage. There was no association of pharmacological prophylaxis with overall PE occurrence.
Apport des observations comportementales (NIDCAP) dans le travail des interactions entre un bébé « déprimé » et l'environnement néonatal
Authors: Hansen Valérie 
Published: September 2010

Résumé Le comportement du nouveau-né hospitalisé reflète ses états de santé physique et psychique sous-jacents. Les signes de stress et de bien-être des bébés malades ou prématurés étant difficiles à percevoir, il est utile de les observer avec les grilles d’évaluation comportementale NIDCAP. Les soins adaptés à chaque bébé en particulier lui donnent une place d’acteur dans son développement. Les parents et les soignants deviennent des corégulateurs de son évolution. L’article illustre les observations de comportement effectuées auprès d’un bébé « déprimé ». Le travail autour des observations combiné au processus autoréflectif (tel qu’il se pratique dans l’observation Esther Bick) ont permis d’installer plus de cohérence dans les soins, incluant l’aspect relationnel pour aider ce bébé à reprendre son développement.
Le Seigneur des Anneaux ou comment survivre au désespoir et à la peur : une lecture par la théorie de l'attachement
Authors: Guédeney Nicole 
Published: September 2010

Résumé Cet article présente une lecture psychologique des personnages du Seigneur des Anneaux (SDA) de Tolkien, à la lumière de la théorie de l’attachement. Depuis sa parution, le SDA a fait l’objet de nombreux travaux, d’abord en pays anglo-saxons puis maintenant en français. Ces réflexions approfondissent particulièrement les dimensions littéraire, linguistique, mythologique ou religieuse du SDA. Très peu, cependant, cherchent à analyser la psychologie « humaine » des personnages du roman. Pourtant Le Seigneur des Anneaux comporte bien un double niveau : celui de l’épopée et celui de l’intime. Le paradigme de l’alarme et de la peur domine le SDA. Ce travail les met en lien avec la biographie de Tolkien, la vision sécure du monde, et propose l’idée que le SDA soit une œuvre de consolation à propos de la perte et du chagrin.
Enhanced Photocurrent Production by Photosystem I Multilayer Assemblies
Authors: Ciesielski Peter N. , Faulkner Christopher J. , Irwin Matthew T. , Gregory Justin M. , Tolk Norman H. , Cliffel David E. , Jennings G. Kane 
Published: September 2010

AbstractThe long‐term success of photosynthetic organisms has resulted in their global superabundance, which is sustained by their widespread, continual mass‐production of the integral proteins that photocatalyze the chemical processes of natural photosynthesis. Here, a fast, general method to assemble multilayer films composed of one such photocatalytic protein complex, Photosystem I (PSI), onto a variety of substrates is reported. The resulting films, akin to the stacked thylakoid structures of leaves, consist of a protein matrix that is permeable to electrochemical mediators and contain a high concentration of photoelectrochemically active redox centers. These multilayer assemblies vastly outperform previously reported monolayer films of PSI in terms of photocurrent production when incorporated into an electrochemical system, and it is shown that these photocatalytic properties increase with the film thickness. These results demonstrate how the assembly of micron‐thick coatings of PSI on non‐biological substrates yields a biohybrid ensemble that manifests the photocatalytic activity of the film’s individual protein constituents, and represent significant progress toward affordable, biologically‐inspired renewable energy conversion platforms.
Surface Wrinkling: A Versatile Platform for Measuring Thin‐Film Properties
Authors: Chung Jun Young , Nolte Adam J. , Stafford Christopher M. 
Published: September 2010

AbstractSurface instabilities in soft matter have been the subject of increasingly innovative research aimed at better understanding the physics of their formation and their utility in patterning, organizing, and measuring materials properties on the micro and nanoscale. The focus of this Review is on a type of instability pattern known as surface wrinkling, covering the general concepts of this phenomenon and several recent applications involving the measurement of thin‐film properties. The ability of surface wrinkling to yield new insights into particularly challenging materials systems such as ultrathin films, polymer brushes, polyelectrolyte multilayer assemblies, ultrasoft materials, and nanoscale structured materials is highlighted. A perspective on the future directions of this maturing field, including the prospects for advanced thin‐film metrology methods, facile surface patterning, and the control of topology‐sensitive phenomena, such as wetting and adhesion, is also presented.
The First General, Highly Enantioselective Lewis Base Organo‐ catalyzed Hydrosilylation of Benzoxazinones and Quinoxalinones
Authors: Xue Zhou‐Yang , Jiang Yan , Peng Xiao‐Zhi , Yuan Wei‐Cheng , Zhang Xiao‐Mei 
Published: September 2010

AbstractThe first general, highly enantioselective hydrosilylation of benzoxazinones and quinoxalinones has been developed. The chiral Lewis base organocatalysts that are readily accessible from (1S,2R)‐ephedrine and (1R,2S)‐ephedrine promoted the title reaction to afford various chiral dihydrobenzoxazinones and dihydroquinoxalinones with good yields as well as good enantioselectivities.
A BifunctionalCinchonaAlkaloid‐Squaramide Catalyst for the Highly Enantioselective Conjugate Addition of Thiols totrans‐Chalcones
Authors: Dai Le , Wang Su‐Xi , Chen Fen‐Er 
Published: September 2010

AbstractA chiral squaramide catalysts‐promoted asymmetric sulfa‐Michael conjugated addition of thiols totrans‐chalcones is presented. Moderate to excellent yields and high enantioselectivities (up to 99%ee) were achieved under mild conditions.
Folic acid flour fortification: Impact on the frequencies of 52 congenital anomaly types in three South American countries
Authors: López‐Camelo Jorge S. , Castilla Eduardo E. , Orioli Iêda M. 
Published: September 2010

AbstractThe aim of the present investigation was to search for a reduction in birth prevalence estimates of 52 selected types of congenital anomalies, associated with folic acid fortification programs in Chile, Argentina, and Brazil. The material included 3,347,559 total births in 77 hospitals of the three countries during the 1982–2007 period: 596,704 births (17 hospitals) in Chile, 1,643,341 (41 hospitals) in Argentina, and 1,107,514 (19 hospitals) in Brazil. We compared pre‐ and post‐fortification rates within each hospital and the resulting Prevalence Rate Ratios (PRRs) were pooled by country. Statistically significant reductions in birth prevalence estimates after fortification were observed for neural tube defects (NTDs), septal heart defects, transverse limb deficiencies, and subluxation of the hip. However, only the reduction of NTDs appeared to be associated with folic acid fortification and not due to other factors, because of its consistency among the three countries, as well as with previously published reports, and its strong statistical significance. Among the NTDs, the maximum prevalence reduction was observed for isolated cephalic (cervical‐thoracic) spina bifida, followed by caudal (lumbo‐sacral) spina bifida, anencephaly, and cephalocele. This observation suggests etiologic and pathogenetic heterogeneity among different levels of spina bifida, as well as among different NTD subtypes. We concluded that food fortification with folic acid prevents NTDs but not other types of congenital anomalies. © 2010 Wiley‐Liss, Inc.
Examining the evidence for vascular pathogenesis of selected birth defects
Authors: Sadler Thomas W. , Rasmussen Sonja A. 
Published: September 2010

AbstractVascular mechanisms have been proposed to be involved in the pathogenesis of a number of defects, including transverse‐limb defects, intestinal atresias, gastroschisis, hydranencephaly, porencephaly, oromandibular‐limb hypogenesis sequence, and oculoauriculovertebral spectrum (OAVS). Here, we examine the available clinical, epidemiologic, and experimental evidence for four defects (transverse‐limb defects, intestinal atresias, gastroschisis, and OAVS) for which vascular pathogenesis has been hypothesized. Based on our review, transverse‐limb defects appear to sometimes be due to vascular events related to placental vascular abnormalities, hypoperfusion, abnormal development of blood vessels, intrauterine compression, hemoglobinopathies, or exposure to vasoactive agents, although epidemiological studies have not consistently demonstrated the latter association. However, transverse‐limb defects can also be due to abnormal developmental events, such as aberrant molecular signaling in the apical ectodermal ridge. Some intestinal atresias may have a vascular origin, with the hypothesis supported by experiments in canines. However, evidence is accumulating that a more common mechanism might be related to improper molecular signaling related to gut specification early in development. In contrast, evidence to support vascular pathogenesis for gastroschisis and OAVS is less compelling. Instead, these defects probably arise from interference with basic developmental events [e.g., body wall closure (gastroschisis) and neural crest cell development (OAVS)]. These conclusions are important for counseling parents of children with these defects and for guiding the design of future epidemiological studies and experiments to further characterize the causes of these defects. © 2010 Wiley‐Liss, Inc.
Mucinous cystadenoma of ovary in a patient with juvenile polyposis due to 10q23 microdeletion: Expansion of phenotype
Authors: Babovic Nikola , Simmons Patricia S. , Moir Christopher , Thorland Erik C. , Scheithauer Bernd , Gliem Troy J. , Babovic‐Vuksanovic Dusica 
Published: September 2010

AbstractJuvenile polyposis syndrome (JPS) is a hereditary condition characterized by development of gastrointestinal polyps, and caused by mutations in SMAD4 or BMPR1A genes. Juvenile polyps can also be found in a related group of syndromes with multisystemic involvement including Cowden disease, Lhermitte–Duclos disease, Bannayan–Riley–Ruvalcaba syndrome, and Proteus‐like syndrome, all grouped as PTEN hamartoma tumor syndromes (PHTS). In all these conditions including JPS, polyps manifest in older childhood or early adulthood. Infantile juvenile polyposis (JPI) is a rare entity, presenting in the first year of life with severe gastrointestinal symptoms. Many of these patients have associated macrocephaly, hypotonia, and congenital anomalies. It was recently recognized that patients with infantile polyposis have a 10q23 microdeletion, involving both BMPR1A and PTEN genes. There is a major risk for gastrointestinal malignancies in these patients, but the risk for development of other tumors is not known. We describe a patient with a history of infantile polyposis, macrocephaly, developmental delay, hypotonia, and a 10q23 microdeletion. At age 14 she presented with bilateral mucinous cystadenoma of the ovary. This type of tumor was not previously reported in association with JPS, 10q23 microdeletion syndrome, or infantile polyposis. We believe that ovarian cystadenomas may be another neoplastic complication of infantile polyposis, and that our report widens the spectrum of the 10q23 microdeletion phenotype. © 2010 Wiley‐Liss, Inc.
Regioselective metathesis reactions of various polyunsaturated ketones and alcohols
Authors: Aouf Chahinez , Galy Nicolas , Doucet Henri , Santelli Maurice 
Published: September 2010

AbstractThe reactivity for metathesis reaction of some polyunsaturated cyclopentanols, and of a polyunsaturated ketone bearing vinyl groups or vinyl and propenyl groups has been examined. In the presence of two of these reactants, depending on the ruthenium catalyst employed, either the ring closing metathesis or the cross‐coupling metathesis was observed. Copyright © 2010 John Wiley & Sons, Ltd.
Comparison of sorbitol and glycerol as plasticizers for thermoplastic starch in TPS/PLA blends
Authors: Li Hongbo , Huneault Michel A. 
Published: September 2010

AbstractThis article investigates the structure and properties of thermoplastic starch/PLA blends where the TPS phase is plasticized by sorbitol, glycerol, and glycerol/sorbitol mixtures. The blends were prepared using a twin‐screw extruder where starch gelatinization, water removal, and dispersion of TPS into a PLA matrix were carried out sequentially. The plasticizers were added to starch in the first stage of the extruder to allow complete starch gelatinization. The PLA was added at mid‐extruder and thoroughly mixed with the TPS. The plasticizer concentration was varied from 30 to 42% and the TPS content was varied from 27 to 60% on a weight basis. In all investigated blends, the PLA formed the continuous phase and the TPS was the dispersed phase. The viscosity, blend morphology, tensile mechanical properties as well as the thermal properties of the materials were measured. It was found that the glycerol/sorbitol ratio has an important effect on the blend properties. Finer blend morphologies, higher tensile strength and modulus but lower crystallization rate were found for the sorbitol plasticized blends. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Power law distributions in information science: Making the case for logarithmic binning
Authors: Milojević Staša 
Published: September 2010

AbstractWe suggest partial logarithmic binning as the method of choice for uncovering the nature of many distributions encountered in information science (IS). Logarithmic binning retrieves information and trends “not visible” in noisy power law tails. We also argue that obtaining the exponent from logarithmically binned data using a simple least square method is in some cases warranted in addition to methods such as the maximum likelihood. We also show why often‐used cumulative distributions can make it difficult to distinguish noise from genuine features and to obtain an accurate power law exponent of the underlying distribution. The treatment is nontechnical, aimed at IS researchers with little or no background in mathematics.
Modelling the oxidation of 15 VOCs to track yields of hydrogen
Authors: Grant Aoife , Archibald Alexander T. , Cooke Michael C. , Nickless Graham , Shallcross Dudley E. 
Published: September 2010

AbstractA box model simulating tropospheric conditions was used to trace the oxidation pathways of 15 volatile organic compounds (VOCs). Yields of hydrogen were calculated over the duration of the model simulation and conversion factors to hydrogen were determined for individual VOCs at various simulated levels of NOx. These were used to produce global budget estimates. Oxidation of non‐methane VOCs (NMVOCs) formed 20.1 Tg H2/year, while the overall VOC oxidation accounted for 45.3 Tg H2/year. To maintain the oxidation balance within global chemical transport models which do not include a detailed suite of NMVOC it may be vital to include this hydrogen source from NMVOC oxidation. Copyright © 2010 Royal Meteorological Society
Adoption of cleaner technology for climate proactivity: a technology–firm–stakeholder framework
Authors: Sangle Shirish 
Published: September 2010

AbstractThe adoption of cleaner technology (CT) has the potential to play an important role in tackling the impacts of business on climate change on business. It is therefore important to understand the factors motivating the adoption of CT in business. Using a technology–firm–stakeholder framework, this study proposes a perception‐based model for the adoption of CT for climate proactivity that is tested against data collected from 106 firms in India. Six factors are tested using a logistic regression and five are found to be significant in distinguishing adopter firms from non‐adopter firms. The results suggest that the perception‐based model using a technology–firm–stakeholder framework is a useful approach for examining factors affecting the adoption decision. While techno‐economic benefits are perceived to be higher by adopter firms than by non‐adopter firms, other benefits are not perceived differently by either adopter or non‐adopter firms. In addition, adopter firms perceive lower financial costs and higher technical capability than non‐adopter firms do. Also, adopter firms perceive higher regulatory pressure but lower stakeholder pressure than non‐adopter firms do. Implications of the findings and future research areas are discussed. Copyright © 2010 John Wiley & Sons, Ltd and ERP Environment.
ChemInform Abstract: Dimorphism and Magnetic Properties of Dy2BaCoO5.
Authors: HERNANDEZ‐VELASCO J. , SAEZ‐PUCHE R. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: SAM1; The First of a New Series of General Purpose Quantum Mechanical Molecular Models.
Authors: DEWAR M. J. S. , JIE C. , YU J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Energy Transfer in the 31,214151 Fermi‐Resonant States of Acetylene. Part 1. Rotational Energy Transfer
Authors: FROST M. J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Asymmetric Addition of B‐(2‐(Phenoxymethyl)‐2‐propenyl)bis(2‐ isocaranyl)borane to Aldehydes and Further Cyclization to Chiral 3‐ Methylenetetrahydrofurans.
Authors: VAN DER HEIDE T. A. J. , VAN DER BAAN J. L. , BIJPOST E. A. , DE KANTER F. J. J. , BICKELHAUPT F. , KLUMPP G. W. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Sulfidation and Activity of Co/C Catalysts Having Extremely Low Cobalt‐ Loading: A Moessbauer Emission Spectroscopy and Thiophene Hydrodesulfurization Study.
Authors: CRAJE M. W. J. , DE BEER V. H. J. , VAN VEEN J. A. R. , VAN DER KRAAN A. M. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Ring‐Opening of Substituted Isoxazolidines: One‐Pot Synthesis of Indenes.
Authors: CASUSCELLI F. , CHIACCHIO U. , LIGUORI A. , ROMEO G. , SINDONA G. , UCCELLA N. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: 4‐Hydroxy‐2‐quinolones. Part 3. Synthesis and Physicochemical Properties of 1‐R‐3‐Carbethoxy‐4‐hydroxy‐2‐quinolones.
Authors: UKRAINETS I. V. , BEZUGLYI P. A. , TRESKACH V. I. , TUROV A. V. , SLOBODZYAN S. V. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reaction of 2‐Aroyl‐4,4‐dimethyl‐2‐buten‐4‐olides with Methyl Acetoacetate Followed by the Treatment with Ammonium Acetate.
Authors: MATSUO K. , TAKAHASHI K. , ARASE T. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Unique UV‐VIS Absorption and Circular Dichroic Exciton‐Split Spectra of a Chiral Biscyanine Dye (I): Origin and Nature.
Authors: BEROVA N. , GARGIULO D. , DERGUINI F. , NAKANISHI K. , HARADA N. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.