bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Kasserine Archaeological Survey, 1982-1986 (University of Virginia, USA - Institut National d'Archéologie et d'Art de Tunisie)
Authors: Hitchner R. Bruce 
Published: July 2011

La présente enquête est la réalisation d'un projet conçu en collaboration pour faire l'étude socio-économique de la région autour des villes romaines de Cillium (Kasserine) et de Thelepte, à partir de la recension et de l'analyse des vestiges d'établissements antiques. 89 sites ont été pris en compte au cours des quatre campagnes de reconnaissance sur le terrain. La plupart appartiennent à une période comprise entre le Ier et le VIIe siècles de notre ère ; ils constituent un échantillonnage hiérarchisé de sites : agglomération urbaine, village, exploitation agricole grande ou petite et structure de moindre importance. La prospection a permis d'identifier également les traces d'un contrôle des eaux associé à ces installations.
Des résultats obtenus, il ressort en gros, que l'incorporation de la région dans l'empire romain s'est traduite par une multiplication des implantations agricoles entre le Ier et le IVe siècles. Les raisons précises de ce changement ne sont pas toutefois inscrites dans les données archéologiques elles-mêmes, mais peuvent être mises en relation avec la fondation de centres urbains d'importance à Cillium et à Thelepte au Ier siècle de notre ère et avec l'introduction de l'olivier comme culture de rapport. En même temps, il apparaît que le développement de la période romaine a suivi des schémas d'occupation préexistants et a fait largement appel pour la mise en valeur agricole à des techniques indigènes propres aux régions arides. La prospection a fourni aussi des éléments de nature à faire penser qu'un certain nombre d'établissements ont été abandonnés de la fin du Ve au VIIe siècle. Ici encore, l'archéologie ne peut guère donner l'explication de cette évolution. Il est suggéré toutefois que cet abandon peut être le résultat de la réapparition du pastoralisme dans la région à la fin du Ve et au début du VIe siècle, ainsi que l'effet de la réintroduction des structures fiscales romaines antérieures sur une économie en déclin, par les autorités byzantines après 533.
L'apport du Q de Tobin à la modélisation de l'investissement en France
Authors: Epaulard Anne 
Published: July 2011

L'apport du Q de Tobin à la modélisation de l'investissement en France,
par Anne Epaulard.

Cet article revient sur la pertinence du modèle en Q de Tobin pour la modélisation du comportement d'investissement des entreprises françaises. Des tests d'hypothèses non emboîtées permettent de mesurer l'apport du Q de Tobin en comparant les performances de ce modèle à celles de l'accélérateur, du profit et de la profitabilité. Nous exploitons ensuite deux visions alternatives permettant de justifier, au niveau maao-économique, la présence simultanée de l'accélérateur et du Q de Tobin dans les équations d'investissement. La première consiste à supposer qu'une partie des entreprises est contrainte dans ses débouchés. Nous estimons alors un modèle à deux régimes (accélérateur - Q de Tobin) dont les performances empiriques sont satisfaisantes et soulignent que les deux régimes se sont succédé et ont parfois coexisté sur la période 1974-1989. La seconce vision consiste à introduire l'hypothèse de concurrence monopolistique dans le modèle théorique et les estimations économétriques.
Relations causales entre les dépenses militaires et leur environnement macro-économique : tests partiels pour la France et les États-Unis
Authors: Jacques Jean-François , Picavet Emmanuel 
Published: July 2011

Causal Relations between Military Spending and its Macroeconomic Environment: Partial Tests for France and the United States,
by Jean-François Jacques and Emmanuel Picavet.

This article presents the results of Granger causality tests made in a multivariate context comprising military spending, the budget deficit and domestic product for France (1953-1989) and the United States (1947-1990). In the case of France, close dependency links are found between these variables. Conversely, military spending in the United States appears to stand somewhat apart from product fluctuations and the budget deficit. The introduction of an additional series (real interest rates) in no way challenges these conclusions.
Lampes tardo-républicaines à Glanum : essai de détermination typologique et physico-chimique
Authors: Bémont Colette , Lahanier Christian 
Published: July 2011

This is an archaeological and physico-chemical study of a group of some 50 lamps, all datable between the end of the 2nd c. B.C. and the reign of Augustus, and preserved in the Glanum excavation reserve. Most of them come from Glanum, the others from neighbouring sites.
They fall essentially into six main groups: 1. biconical lamps of the "Esquiline" type, 2. bitronconical lamps in grey ware, 3. lamps of the "ad anitrelle" type, 4. "dolphin" lamps with points in relief, 5. lamps of type Dressel 3, 6. bird's head lamps. However, the samples include several variants and hybrids, many of them unpublished. The analysis of the paste, type-by-type and globally, produces six principal groups: the first three include most of the earlier lamps attested, the other three most of the lamps of the "second generation". One should note, however, that the groups as defined by their paste eut across several different types of lamp. Also important to note is the very close chemical similarity between the black varnished lamps with a red paste (biconical lamps of the Esquiline) and the sherds of "Campanian ware A" of the classical, middle, and late periods which were analysed at the same time for comparison. Nevertheless, the small size of the samples analysed requires us to be prudent.
Residual HIV-1 RNA and HIV-1 Dna Production in the Genital Tract Reservoir of Women Treated with Haart: The Prospective Anrs Ep24 Gynodyn Study
Authors:   the ANRS EP24 GYNODYN Study Group, Launay Odile , Tod Michel , Tschöpe Inga , Si-Mohamed Ali , Bélarbi Linda , Charpentier Charlotte , Goujard Cécile , Taburet Anne-Marie , Lortholary Olivier , Leroy Valériane , Bélec Laurent 
Published: July 2011

Background The female genital tract constitutes a reservoir for HIV providing active production of both cell-free HIV RNA and cell-associated DNA within the cervicovaginal secretions. The objective of this study was to prospectively assess residual HIV-1 RNA and HIV-1 DNA production in the genital tract reservoir of women initiating HAART over an 18-month period. Methods Paired blood and cervicovaginal lavage samples were collected at inclusion and 1, 6, 12 and 18 months after HAART initiation, in 23 women in first-line HAART and six women in virological failure, for measurement of HIV-1 RNA and HIV-1 DNA shedding and/or drug concentrations. Results A dramatic decrease of HIV-1 RNA and HIV-1 DNA occurred in both blood and cervicovaginal samples over the first 6 months on HAART, followed by a shelf up to 18 months, independently of the drugs’ genital pharmacokinetics. While cervicovaginal HIV-1 RNA became undetectable in >90% of women from 6 months on HAART, genital HIV-1 DNA remained frequently detectable (27–50%). Nearly 40% of women with sustained undetectable plasma HIV-1 RNA after 6–18 months on HAART harboured transient HIV-1 RNA (15% of women) or HIV-1 DNA (31% of women) in their genital secretions. Conclusions Low-level cervicovaginal HIV-1 shedding is frequently evidenced in HAART-treated women with transient HIV-1 RNA and persistent HIV-1 DNA despite a systemic control of viral replication, resulting in possible residual genital infectivity.
Microreactors – Modeling and Simulation
Authors: Hardt Steffen 
Published: July 2011

AbstractThe article contains sections titled:1.Introduction2.Flow Distributions2.1.Straight Microchannels2.2.Periodic and Curved Channel Geometries2.3.Multichannel Flow Domains3.Heat Transfer3.1.Straight Microchannels3.2.Periodic and Curved Channel Geometries3.3.Multichannel Flow Domains3.4.Micro Heat Exchangers4.Mass Transfer and Mixing4.1.Simple Mixing Channels4.2.Chaotic Micromixers4.3.Multilamination Micromixers4.4.Hydrodynamic Dispersion5.Chemical Kinetics5.1.Numerical Methods for Reacting Flows5.2.Reacting Channel Flows5.3.Heat‐Exchanger Reactors6.Conclusions and Outlook
Process Intensification, 4. Plant Level
Authors: Freund Hannsjörg , Sundmacher Kai 
Published: July 2011

AbstractThe article contains sections titled:1.Introduction2.Heat‐Integrated Chemical Reactors2.1.Autothermal Fixed‐Bed Reactor Concepts2.1.1.Weakly Exothermic Reactions2.1.2.Combination of Exo‐ and Endothermic Reactions2.2.Desorptive Cooling of Reactors3.Reactive Separations3.1.Reactive Distillation3.2.Reactive Stripping3.3.Reactive Absorption3.4.Reactive Extraction3.5.Reactive Crystallization3.6.Reactive Adsorption3.6.1.Discontinuous Chromatographic Reactors3.6.2.Continuous Chromatographic Reactors3.6.3.Sorption‐Enhanced Reactors3.7.Membrane Reactors4.Other Intensification Concepts on the Plant Level4.1.Hybrid Separations4.2.Reactive Mechanical Unit Operations
Crystal Structures and Repair Studies Reveal the Identity and the Base‐Pairing Properties of the UV‐Induced Spore Photoproduct DNA Lesion
Authors: Heil Korbinian , Kneuttinger Andrea Christa , Schneider Sabine , Lischke Ulrike , Carell Thomas 
Published: July 2011

AbstractUV light is one of the major causes of DNA damage. In spore DNA, due to an unusual packing of the genetic material, a special spore photoproduct lesion (SP lesion) is formed, which is repaired by the enzyme spore photoproduct lyase (Spl), a radical S‐adenosylmethionine (SAM) enzyme. We report here the synthesis and DNA incorporation of a DNA SP lesion analogue lacking the phosphodiester backbone. The oligonucleotides were used for repair studies and they were cocrystallized with a polymerase enzyme as a template to clarify the configuration of the SP lesion and to provide information about the base‐pairing properties of the lesion. The structural analysis together with repair studies allowed us to clarify the identity of the preferentially repaired lesion diastereoisomer.
Personality Diagnostic Questionnaire 4+ is not Useful as a Screener in Clinical Practice
Authors: de Reus Rob J. M. , van den Berg Julia F. , Emmelkamp Paul M. G. 
Published: July 2011

In clinical practice, the combination of brief, cost effective, valid and reliable assessment of personality disorders (PDs) is highly important. Substantial budget cuts require optimal use of the clinician's time. PDs are related with high axis I comorbidity, poorer therapy outcome and increased health service costs. In an effort to find a screening questionnaire that meets both the demands of cost‐effectiveness and methodological soundness, we investigated the use of the Personality Diagnostic Questionnaire 4+ (PDQ‐4+) as a first step in a two‐step diagnostic procedure. As the second step, we used the Structured Clinical Interview of DSM‐IV Axis II Personality Disorders (SCID‐II) as criterion measure. Our results show that the positive predictive power of the PDQ‐4+ is rather low, resulting in a large number of false positives. Therefore, its added value is poor in comparison with administering the SCID‐II in the first place. Also, the value of the two validity scales of the PDQ‐4+ is highly questionable. We therefore conclude that the PDQ‐4+ should not be used in clinical practice as a screening instrument for PD assessment. Copyright © 2011 John Wiley & Sons, Ltd.Key Practitioner Message

Personality disorders are related with high axis I comorbidity, poorer therapy outcome and increased health service costs.
Valid, reliable and cost effective PD assessment is highly relevant for clinical practice.
Diagnostic two‐step procedure was tested using the PDQ−4+ as a screener.
Positive predictive power of the PDQ−4+ was generally low, making it not useful as a screener in clinical practice.
A new fuzzy sliding mode controller for load frequency control of large hydropower plant using particle swarm optimization algorithm and Kalman estimator
Authors: Hooshmand R. , Ataei M. , Zargari A. 
Published: July 2011

SUMMARYThe load frequency control (LFC) is very important in power system operation and control for supplying sufficient, reliable, and high‐quality electric power. The conventional LFC uses an integral controller. In this paper, a new control system based on the fuzzy sliding mode controller is proposed for controlling the load frequency of nonlinear model of a hydropower plant, and this control system is compared with the proportional–integral controller and the conventional sliding mode controller. To regulate the membership functions of fuzzy system more accurately, the particle swarm optimization algorithm is also applied. Moreover, because of the unavailability of the control system variables, a nonlinear estimator is suggested for estimating and identifying the system state variables. This estimator provides the physical realization of the method and will reduce the costs of implementation. The proposed control method is performed for the LFC of hydropower plant of Karoon‐3 in Shahrekord, Iran. The simulation results show the capability of the controller system in controlling local network frequency. Copyright © 2011 John Wiley & Sons, Ltd.
Impact of Random Geometric Distortions on the Performance and Reliability of an SOFC
Authors: Cornu T. M. , Wuillemin Z. 
Published: July 2011

AbstractA method based on Monte Carlo simulations (MCS) is developed to assess the impact of manufacturing tolerances on the durability of performance and on the reliability of solid oxide fuel cells (SOFCs). Computational fluid dynamics (CFD) simulations of the gas distribution pattern (GDP) at the anode are carried out for a set of deformed geometries. An automated code allows generating standardized deformations in a random manner on the original meshed geometry taken as input. In the scope of this study, the fuel flow uniformity is taken as the indicator of the performance and reliability of SOFCs. Statistical sensitivity analyses are carried out to assess the impact of dimensional tolerances on repeat‐elements both taken individually and stacked together. The implemented method is evaluated with two standard GDPs. Results show that the sensitivity to thickness variations is predominant on the sensitivity to in‐plane deformations of channels. Besides, the magnitude of sensitivity largely depends on the GDP and on the extent of the deformation, too. In addition, negative effects of deformations are shown to be exacerbated in stack situation. The method proved successful in getting quick insights on the quality of GDPs with respect to dimensional tolerances.
Synthesis and α‐glucosidase inhibitory, DPPH scavenging activity of substituted 2‐oxo‐2H‐chromen‐7‐yl‐dihydrogen phosphate derivatives
Authors: Kumar J. Ashok , Tiwari Ashok K. , Ali A.Zehra , Rao R. Ranga , Raju B. China 
Published: July 2011

AbstractSeries of phosphorylated coumarin derivatives (4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 4j) were synthesized by Pechmann condensation, phosphorylation, and debenzylation reactions in very good yields. Thus, synthesized compounds (4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 4j) were evaluated for their α‐glucosidase and 1,1‐diphenyl‐2‐picrylhydrazyl scavenging activities; few compounds showed moderate to good activity. J. Heterocyclic Chem., 00, 00 (2011).
MRI of trabecular bone using a decay due to diffusion in the internal field contrast imaging sequence
Authors: Mintzopoulos Dionyssios , Ackerman Jerome L. , Song Yi‐Qiao 
Published: July 2011

AbstractPurpose:To characterize the DDIF (Decay due to Diffusion in the Internal Field) method using intact animal trabecular bone specimens of varying trabecular structure and porosity, under ex vivo conditions closely resembling in vivo physiological conditions. The DDIF method provides a diffusion contrast which is related to the surface‐to‐volume ratio of the porous structure of bones. DDIF has previously been used successfully to study marrow‐free trabecular bone, but the DDIF contrast hitherto had not been tested in intact specimens containing marrow and surrounded by soft tissue.Materials and Methods:DDIF imaging was implemented on a 4.7 Tesla (T) small‐bore, horizontal, animal scanner. Ex vivo results on fresh bone specimens containing marrow were obtained at body temperature. Control measurements were carried out in surrounding tissue and saline.Results:Significant DDIF effect was observed for trabecular bone samples, while it was considerably smaller for soft tissue outside the bone and for lipids. Additionally, significant differences were observed between specimens of different trabecular structure.Conclusion:The DDIF contrast is feasible despite the reduction of the diffusion constant and of T1 in such conditions, increasing our confidence that DDIF imaging in vivo may be clinically viable for bone characterization. J. Magn. Reson. Imaging 2011;. © 2011 Wiley‐Liss, Inc.
REGIV as a potential biomarker for peritoneal dissemination in gastric adenocarcinoma
Authors: Moon Jeong‐Ho , Fujiwara Yoshiyuki , Nakamura Yurika , Okada Kaoru , Hanada Hiroyuki , Sakakura Chohei , Takiguchi Shuji , Nakajima Kiyokazu , Miyata Hiroshi , Yamasaki Makoto , Kurokawa Yukinori , Mori Masaki , Doki Yuichiro 
Published: July 2011

AbstractBackgroundThis study examined the clinical significance of regenerating islet‐derived family member 4 (REGIV) in surgically resected gastric tumors. The potential of REGIV as a biomarker in gastric cancer was also assessed including its predictive value for prognosis and recurrence after surgery.MethodsImmunohistochemistry was performed to assess the clinical significance of REGIV expression status in surgically resected specimens. The quantitative genetic diagnostic method, transcription‐reverse transcription concerted reaction (TRC) that targeted REGIV mRNA was applied for prediction of peritoneal recurrence in gastric cancer.ResultsPositive immunostaining for REGIV was observed in 85 cases (52.5%), and correlated significantly with diffuse type histopathology (P = 0.001), advanced T stage (P = 0.022), and frequent peritoneal recurrence (P = 0.009). Multivariate analysis identified advanced T stage (P < 0.001) and REGIV expression (P = 0.034) as independent prognostic factors for peritoneal recurrence‐free survival. Overexpression of REGIV protein was evident in the majority of peritoneal tumors (93.8%). REGIV mRNA assessed by TRC could be a predictive marker for peritoneal recurrence after curative operation.ConclusionsREGIV overexpression is common in primary gastric tumors and a potentially suitable marker of diffuse type histopathology and peritoneal dissemination. Overexpression of REGIV mRNA, assessed by the TRC method, is a potentially suitable marker of peritoneal recurrence after curative resection. J. Surg. Oncol. 2012; 105:189–194. © 2011 Wiley Periodicals, Inc.
Reducing injury during video‐assisted endotracheal intubation: The “Smart Stylet” concept
Authors: Weissbrod Philip A. , Merati Albert L. 
Published: July 2011

AbstractObjectives:Video‐assisted endoscopic intubation (VAEI) has gained wide use in anesthesiology when difficult intubation is encountered. Even when excellent visualization of the larynx is achieved with VAEI, successful intubation can be difficult and/or traumatic due to awkward angles and rigid stylets. Presented is a modification of standard VAEI procedure that allows for minimization of intubation trauma.Methods:Technical description of VAEI with “smart stylet” for laryngeal surgical patients.Results:For difficult intubations, a GlideScope™, a type of VAEI, is used in combination with a flexible bronchoscope acting as a “smart” stylet. The bronchoscope is not used for its light or fiberoptic capacity, but rather as a manipulatable stylet for the endotracheal tube. The technical description of this technique is presented with illustrative images and online video content.Conclusions:The “smart stylet” concept allows for successful and safe endotracheal intubation when used with the Glidescope™.
A study of the new generation of the advance system tongue implants: Three‐ and six‐month effects of tongue to mandible tethering for obstructive sleep apnea
Authors: Pavelec Vaclav , Hamans Evert , Stuck Boris A. 
Published: July 2011

AbstractObjectives/Hypothesis:Treatment of hypopharyngeal collapse of upper airway is a surgical challenge in obstructive sleep apnea (OSA) patients who fail continuous positive airway pressure (CPAP).Study Design:A prospective, nonrandomized, multicentered, feasibility study.Methods:Nineteen OSA patients with an apnea‐hypopnea index (AHI) between 15 and 50 with CPAP intolerance were included in the study. Baseline polysomnography (PSG) was measured, and 3‐ and 6‐month postoperative PSGs were recorded. Preoperative and postoperative home sleep studies, cephalographs, and videoendoscopy were performed. Additionally, the subjects completed the Epworth Sleepiness Scale (ESS), Patient and Bed Partner Snoring Questionnaire, Functional Outcomes of Sleep Questionnaire, and Throat Questionnaire.Results:AHI dropped from 33.8 at baseline to 18.6 at 3‐month follow‐up and to 24.3 at 6‐month follow‐up, respectively. Overall surgical success was 38.9% as defined by a 50% drop in AHI to a score below 20 at 6 months. ESS decreased from 11.4 to 6.1 and 7.4 at 3 months and 6 months, respectively. Snoring intensity was reduced from 7% to 3.8% at 3 and 6 months, respectively. Quality of life was improved from 15.6 to 17.9 (14.3%) and 18.1 (15.6%) at 3 months and 6 months, respectively.Conclusions:The rates of surgical success, feasibility, and safety were satisfactory. Further technical device improvement is necessary and must be based on a new understanding of tongue forces.
Three‐phase complementary colpitts VCO implemented with A LC‐ring resonator
Authors: Jang Sheng‐Lyang , Cheng Ta‐Yu , Chang Chia‐Wei , Hsue Ching‐Wen 
Published: July 2011

AbstractA 7‐GHz complementary Colpitts voltage‐controlled oscillator (VCO) in 0.18‐μm CMOS process is proposed to generate three output phases with wide tuning range.The designed VCO uses three single‐ended current‐reused VCOs coupled via the three‐resonator inductors connected in a delta configuration. The proposed VCO oscillates from 6.25 to 7.27 GHz, and the power consumption is 11.47 mW at 1.5‐V supply voltage. The measured phase noise is about −115.25 dBc/Hz at 1‐MHz offset frequency from 6.22 GHz. The VCO provides a figure of merit of −184.1 dBc/Hz with the effect of tuning range. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2308–2310, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26238
Numerical scheme for simulation of self‐pulsing and chaos in coupled microring resonators
Authors: Petráček Jiři , Sterkhova Anna , Luksch and Jaroslav 
Published: July 2011

AbstractNonlinear coupled equations that describe propagation of optical pulses in waveguide structures under the slowly varying envelope approximation are solved by a simple explicit finite‐difference scheme.The technique, which is based on upwind differencing, is used for modeling of Kerr‐nonlinear structures with microring resonators in all‐pass filter configuration. We show numerical examples that demonstrate existence of self‐pulsing and chaotic solutions. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2238–2242, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26242