bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cephalometric analysis for microvascular head and neck reconstruction
Authors: Chang Edward I. , Clemens Mark W. , Garvey Patrick B. , Skoracki Roman J. , Hanasono Matthew M. 
Published: January 2012

AbstractBackgroundWhile a large body of literature exists involving normative measurements for the craniofacial skeleton, few have analyzed the necessary dimensions that are pertinent in reconstruction using microvascular free flaps.MethodsCephalometric analysis was performed using 3‐dimensional CT scans from 70 adults. Relevant dimensions of the fibula were obtained from a subset of 20 patients.ResultsNormative cephalometric values, including various distances and angles, for the mandible and maxilla were obtained and compared to the dimensions of the fibula. Comparisons were made between measurements from men and women, and patients with full dentition and edentulous patients. Schematics for designing mandibular and maxillary reconstructions are presented.ConclusionWhen premorbid craniofacial anatomy cannot be discerned in the setting of extensive trauma or tumor involvement, normative dimensions may be a helpful guide for flap design and should be in the armamentarium of surgeons engaged in complex head and heck reconstruction. © 2012 Wiley Periodicals, Inc. Head Neck, 2012
mTHPC mediated interstitial photodynamic therapy of recurrent nonmetastatic base of tongue cancers: Development of a new method
Authors: Karakullukcu Baris , Nyst Heike J. , van Veen Robert L. , Hoebers Frank J. P. , Hamming–Vrieze Olga , Witjes Max J. H. , de Visscher Sebastiaan A. H. J. , Burlage Fred R. , Levendag Peter C. , Sterenborg Henricus J. C. M. , Tan I. Bing 
Published: January 2012

AbstractBackgroundInterstitial photodynamic therapy (iPDT) can be an option in the management of locally recurrent base of tongue cancer after (chemo)radiation treatment. The purpose of the current study was to develop a technique to implant light sources into the tumor tissue.MethodsTwenty patients with previously irradiated locally recurrent base of tongue cancers who were not candidates for salvage surgery or reirradiation or refused these therapies were included in this study. The treatment planning was done on MRI. The light sources were implanted using modified brachytherapy techniques.ResultsThe iPDT could be conducted in all patients without short‐term complications. At 6 months, 9 patients had complete response with 4 patients still free of disease (46–80 months). Long‐term complications included pharyngocutaneous fistula in 6 patients, serious bleeding in 1 patient, and cutaneous metastasis in 2 patients.ConclusionThe initial results are encouraging. There is room for improvement to control the destructive potential of iPDT through planning and monitoring tools. © 2012 Wiley Periodicals, Inc. Head Neck, 2012
Intraosseous carcinoma of the jaws: A clinicopathologic review. part II: Odontogenic carcinomas
Authors: Woolgar Julia A. , Triantafyllou Asterios , Ferlito Alfio , Devaney Kenneth O. , Lewis James S. , Rinaldo Alessandra , Slootweg Pieter J. , Barnes Leon 
Published: January 2012

AbstractThis is the second of a 3‐part review of the clinicopathologic features of intraosseous carcinoma of the jaws (IOCJ). This part deals with odontogenic carcinomas, rare entities that are difficult to evaluate because of changes in classification/nomenclature, lack of standardized diagnostic criteria, and variable consistency of the existing literature. Endorsing a critical approach, problems are addressed and areas of uncertainty are highlighted. As in part I, we emphasize histopathologic features from a diagnostic point of view and also question the existence of some “distinct” entities. © 2012 Wiley Periodicals, Inc. Head Neck, 2012
Cheek mucosa: A versatile donor site of myomucosal flaps. Technical and functional considerations
Authors: Massarelli Olindo , Baj Alessandro , Gobbi Roberta , Soma Damiano , Marelli Stefano , De Riu Giacomo , Tullio Antonio , Giannì Aldo B. 
Published: January 2012

AbstractBackgroundReconstruction of moderate‐sized mucosal defects of the oral cavity/oropharynx represents a surgical challenge. The most widely used reconstructive techniques are skin grafts, local or regional pedicled flaps, and free flaps, but they do not provide mucosal sensitivity, mobility, volume, or texture similar to that of native tissue. The cheek myomucosal flaps seem to provide “ideal reconstruction” because they carry a thin, mobile, well‐vascularized, and sensitive tissue, like those excised or lost. The purpose of this retrospective analysis was to evaluate the indications for the advantages and disadvantages of 6 types of buccinator myomucosal flaps which are possible to raise from the cheek mucosa.MethodsSixty‐nine buccinator myomucosal flaps were performed on 66 patients with moderate‐sized postoncologic and posttraumatic oral and oropharyngeal defects.ResultsIn all cases except 1, flaps were successfully used with excellent oncological and functional results.ConclusionBuccinator myomucosal flaps can be considered “ideal flaps” for three‐dimensional oral and oropharyngeal reconstructions. © 2012 Wiley Periodicals, Inc. Head Neck, 2013
Charge Migration in Organic Materials: Can Propagating Charges Affect the Key Physical Quantities Controlling Their Motion?
Authors: Gollub Caroline , Avdoshenko Stanislav , Gutierrez Rafael , Berlin Yuri , Cuniberti Gianaurelio 
Published: January 2012

AbstractCharge migration is a ubiquitous phenomenon with profound implications throughout many areas of chemistry, physics, biology, and materials science. The long‐term vision of designing functional materials with tailored molecular‐scale properties has triggered an increasing quest to identify prototypical systems where truly molecular conduction pathways play a fundamental role. Such pathways can be formed due to the molecular organization of various organic materials and are widely used to discuss electronic properties at the nanometer scale. Here, we present a computational methodology to study charge propagation in organic molecular stacks at nano and sub‐nanoscales and exploit this methodology to demonstrate that moving charge carriers strongly affect the values of the physical quantities controlling their motion. The approach is also expected to find broad application in the field of charge migration in soft matter systems.
The Dipole Correction Method for Extracting Excited State Potentials and Electronic Transition Dipoles from Fluorescence Data
Authors: Li Xuan , Shapiro Moshe 
Published: January 2012

AbstractWe have developed a new inversion scheme for the accurate extraction of excited state potentials from fluorescence line positions and line strengths which does not make use of the Franck Condon Approximation (FCA). Our “dipole correction” method also enables the extraction of the coordinate dependence of the electronic transition dipoles. The accuracy of the potential energy surfaces (PES) thus extracted is much higher than that of the FCA‐ derived PES. The procedure, illustrated for the Na2 A(1Σ+u) → X(1Σ+g) P‐branch emission, results in global errors of 0.1 cm−1, and average errors near the PES minimum of 0.03 cm−1, with A → X electronic transition dipole function accuracies better than 1×10−3 Debye. We also show that it is possible to use emission data from a few select states: Global errors as small as 0.08 cm−1 for the Na2 B(1Πu) PES, using emissions data from only the s=0–5 low‐lying levels or the s=20–23 states, are demonstrated.
Eine Jahressukzession von Rotatorien aus dem Plankton des Kainji‐Sees in Nigeria
Authors: Donner Josef , Adeniji H. A. 
Published: January 2012

AbstractThe Rotifers of two planktonic‐series during a year out of the Kainji‐Lake in the African state Nigeria are identified. They have a similarity to those of the European warm pools (Tümpel, Altwässer). Two new varieties are described: Asplanchna brightwelli var. and Euchlanis myersi cristata.
Benthic community structure near the Woods Hole sewage outfall
Authors: Nichols Jean Ann 
Published: January 2012

AbstractBirge‐Ekman box cores were used to sample the benthic invertebrate fauna near the Woods Hole, Massachusetts sewage outfall and a nearby control area. Community structure in terms of numbers and taxa fluctuated seasonally at both control site and at the outfall. The outfall fauna was dominated by small nematode worms, and the year‐round maintenance of a nematode‐dominated community may be a mechanism for utilization of the unpredictable, unnatural, excess organic material available around the outfall. Based on the small size of the invertebrates at the outfall compared to the other areas, it is suggested that the relationship between macrofaunal abundance and average individual size in an assemblage is a measurement of community structure which can be useful in assessing environmental disturbance.
Plankton and seston of a Colorado (U.S.A.) alpine lake: The winter anomaly and the inlet‐outlet budget
Authors: Keefer Verne M. , Pennak Robert W. 
Published: January 2012

AbstractLong Lake, Colorado, at an altitude of 3209 m, is oligotrophic and has an annual ice cover of 240 days. Greatest phytoplankton biomass (mostly μ‐algae) was attained in April and May under thick ice and snow. The Zooplankton was sparse; Cyclops was most abundant in winter, but cladocerans and rotifers had no seasonal maxima. The lake had a total water replacement of 38.7 times per year. Heavy June runoff flushes cut more than 99% of the plankton. On an annual basis, about twice as much plankton biomass is lost through the outlet as comes in through the inlet. Total monthly organic seston sedimentation (fallout) rates for the whole lake ranged from 16.1 kg in October to 730.8 kg in June. Total annual seston production (balance) was 8.0 g organic matter or 4.24 g carbon/m2.
Diel phytoplankton periodicity in Mikołajskie lake, Poland, as determined by different methods in parallel
Authors: Tilzer Max M. , Hillbricht‐Ilkowska Anna , Kowalczewski Andrzej , Spodniewska Irena , Turczyńska Joanna 
Published: January 2012

AbstractPhotosynthetic rates as measured by the oxygen light and dark bottle method were highly correlated with estimates using the 14C technique. The high O2/14C ratios found are explained by algal respiration and extracellular release which are included in photosynthetic measurements by the oxygen technique, while the 14C method yields values close to net photosynthesis.Separation of net‐ and nannoplankton using a 50 μm plankton net for filtration was not comparable to distinctions made by microscopic examination. Separation of both by filtration caused a significant decrease in the photosynthetic activity of nannoplankton in 24‐hour incubations, but had no detectable effect after 4 hours of exposure.“Bottle effects” in 24‐hour measurements of photosynthesis were similar using both methods. Asymmetric photosynthetic time‐curves as well as vertical phytoplankton migrations were the main reasons for errors in estimates of daily photosynthetic rates from part‐day incubations which were extrapolated to the entire day.
Adult life and emergence of Dolania americana in Northwestern Florida (Ephemeroptera: Behningiidae)
Authors: Peters William L. , Peters Janice G. 
Published: January 2012

AbstractThe adult habits and emergence of Dolania americana (Ephemeroptera: Behningiidae) were studied at the Blackwater River in Northwestern Florida. The adult life is crepuscular, beginning about 1½ hrs before sunrise with emergence of male subimagos. Males molt to imagos, female subimagos emerge, males and females mate, and females begin to oviposit in a fairly precise time sequence over the following hour. Only a few adults survive past sunrise. Females never molt to imagos and are polymorphic. Emergence is seasonal and begins between the end of April and the middle of May, depending on climatic conditions. Emergence is photoperiodically entrained. Water temperature is a phase setter and light intensity acts as a synchronizer.
Oxidant damage in Kashin‐Beck disease and a rat Kashin‐Beck disease model by employing T‐2 toxin treatment under selenium deficient conditions
Authors: Chen Jing‐hong , Xue Senghai , Li Siyuan , Wang Zhi‐lun , Yang Haojie , Wang Wei , Song Daiqing , Zhou Xiaorong , Chen Chen 
Published: January 2012

AbstractKashin‐Beck disease (KBD) is an endemic degenerative osteoarthropathy, but the mechanisms underlying its pathogenesis remains unclear. This study compares antioxidant capacity and lipid peroxidation using a novel model, in which rats were administered a selenium‐deficient diet for 4 weeks prior to their exposure to T‐2 toxin for 4 weeks. Changes in cell morphology and empty chondrocyte lacunae indicative of cell death, as well as cartilage proteoglycan loss in the deep zone of articular cartilage of knee joints were observed in rats with selenium‐deficient diet plus T‐2 toxin treatment. These changes were similar to those observed previously in KBD. The levels of thiobarbituric acid reactive substances (TBARS), indicative of lipid peroxidation in serum and cartilage, were significantly increased in all experimental groups compared to the normal diet group, while the levels of antioxidants, measured as total antioxidant capacity (T‐AOC), catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidases (GPX), in serum and cartilage were significantly lower than that in the normal diet group. The mRNA expression of those antioxidants in cartilage tissue was significantly reduced by T‐2 toxin alone or by selenium‐deficient diet plus T‐2 toxin treatment. These results indicate that increasing TBARS and decreasing antioxidants in serum and cartilage by T‐2 toxin treatment with a selenium‐deficient nutritional status may alter oxidative stress in joint tissues and contribute to the pathological process of cartilage damage in KBD. © 2012 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 30:1229–1237, 2012
Inkjet Printing of Zinc(II) Bis‐2,2′:6′,2″‐Terpyridine Metallopolymers: Printability and Film‐Forming Studies by a Combinatorial Thin‐Film Library Approach
Authors: Friebe Christian , Wild Andreas , Perelaer Jolke , Schubert Ulrich S. 
Published: January 2012

AbstractFor the first time, thin‐film libraries of zinc(II) bis‐2,2′:6′,2″‐terpyridine metallopolymers are prepared by inkjet printing to study structure–property relationships and their possible usage for organic photovoltaic (OPV) or polymer light‐emitting diode (PLED) applications. By using a combinatorial approach, various important parameters, including solvent system, dot spacing, and substrate temperature, as well as UV‐vis absorption and emission properties, are screened in a materials efficient and reproducible manner. Homogeneous films with a thickness of 150 –200 nm were obtained when printed at 40 –50 °C and from a solvent mixture of N,N‐dimethylformamide and acetophenone in a ratio of 90/10. In applications such as OPV and PLEDs the control over film thickness and homogeneity are central to obtain good device properties.
Kinetic Study of the Thermopolymerization of Furfuryl Methacrylate (FM) by Mathematical Modeling, 2–Moments of Molecular Size Distribution of the Primary Chains in the Networks
Authors: Lange Jurgen , Lozano Angel E. , García‐Yoldi Iñígo 
Published: January 2012

AbstractThe formation kinetics and structure of three‐dimensional networks in free radical polymerization of FM thermally initiated at high temperature are studied by analysis of zero and first‐order moments of molecular size distribution of primary chains (MSDPC) in the networks. Zero‐order moment values of MSDPC reveal that the system elapses as a living radical polymerization. Also, by means of the analysis of these moments and the first‐order ones of MSDPC, the sigmoidal shape of polymerization kinetic curves can be explained. On the other hand, the results of average crosslink density obtained using moment values of MSDPC suggest that this parameter does not change with polymerization temperature. magnified image
Metabolic MR imaging of regional triglyceride and creatine content in the human heart
Authors: Weiss Kilian , Martini Nicola , Boesiger Peter , Kozerke Sebastian 
Published: January 2012

AbstractAn optimized echo‐planar spectroscopic imaging sequence is proposed to facilitate spatial mapping of triglyceride and total creatine content in the human heart. The sequence integrates local‐look field of view reduction, cardiac and respiratory gating, and dedicated reconstruction steps to account for gradient channel delays, field inhomogeneity, and phase incoherence due to residual motion. The technique is demonstrated in 12 volunteers in comparison to single voxel point‐resolved spectroscopy in the septal wall at 1.5 T. Triglyceride‐to‐water and total creatine‐to‐water ratios derived from echo‐planar spectroscopic imaging (0.48 ± 0.18% and 0.06 ± 0.03%) and point‐resolved spectroscopy (0.52 ± 0.17% and 0.07 ± 0.02%) were found to agree well. In the septal region, intraclass correlation coefficients ranging from 0.67 to 0.72 were estimated. A relatively weak agreement (intraclass correlation coefficients: 0.34 and 0.52) was found for sectors in the lateral wall due to field gradients induced by the posterior vein and limited sensitivity of the receive coil array in this area. On the basis of the findings, it is concluded that fast spectroscopic imaging of both cardiac triglyceride and total creatine content is feasible. Shimming and sensitivity challenges in the lateral region remain, however, to be addressed. Magn Reson Med, 2012. © 2012 Wiley Periodicals, Inc.
Simple baseline correction for 1H MRSI data of the prostate
Authors: Wright Alan J. , Heerschap Arend 
Published: January 2012

AbstractProton magnetic resonance spectroscopic imaging of the prostate can detect and localise tumour tissue in patients with prostate cancer. Pattern recognition methods have the potential to discriminate tumour from normal tissue using the spectral patterns of magnetic resonance spectroscopic imaging data thus providing a powerful tool for diagnosis and monitoring treatment of prostate cancer. Prostate magnetic resonance spectroscopic imaging data acquisition has been optimized for a flat baseline, including a long echo time and the use of water and fat suppression pulses. Despite this acquisition method, lipid resonances may still occur particularly at the margins of the prostate. Correcting the baseline by removing lipid artifacts is, therefore, a necessary processing step. We propose a simple baseline correction method for prostate magnetic resonance spectroscopic imaging through subtraction of a single simulated‐Lorentzian resonance. This method is shown to restore flat baselines to a test set of spectra and compares favorably with a state‐space modeling approach. Magn Reson Med, 2012. © 2012 Wiley Periodicals, Inc.
Simulation of head‐gradient‐coil induced electric fields in a human model
Authors: Feldman Rebecca E. , Odegaard James , Handler William B. , Chronik Blaine A. 
Published: January 2012

AbstractA finite difference method was used to simulate the electric fields induced in the model by a gradient wire pattern. The pattern simulated corresponded to a design used to perform peripheral nerves stimulation experiments. The size (187.8, 169.02, and 150.24 cm tall) and position (brain and neck mode) of the model, relative to the magnet, as well as the voxel dimensions (3, 6, and 9 mm) of the model were varied to assess the effect on the simulation. The locations of stimulation reported from an experiment were classified according to nerve branch and compared with the peak‐simulated electric fields. Model size and location affected the magnitude of the electric field, but not the position. Model resolution affected the location of the peak field. For the smallest resolution investigated, the nerves affected by the locations of peak stimulations in the model correlated to the frequency of stimulation in experiments. Although adequate resolution is required in order to assess the electric fields induced by gradient coil operation, the simulation of electric fields may be useful in evaluating gradient coil design prior to construction. Magn Reson Med, 2012. © 2012 Wiley Periodicals, Inc.
Hyperpolarized 129Xe gas lung MRI–SNR and T2* comparisons at 1.5 T and 3 T
Authors: Xu Xiaojun , Norquay Graham , Parnell Steven R. , Deppe Martin H. , Ajraoui Salma , Hashoian Ralph , Marshall Helen , Griffiths Paul D. , Parra‐Robles Juan , Wild Jim M. 
Published: January 2012

AbstractIn this study, the signal‐to‐noise ratio of hyperpolarized 129Xe human lung magnetic resonance imaging was compared at 1.5 T and 3 T. Experiments were performed at both B0 fields with quadrature double Helmholtz transmit–receive chest coils of the same geometry with the same subject loads. Differences in sensitivity between the two field strengths were assessed from the signal‐to‐noise ratio of multi‐slice 2D 129Xe ventilation lung images obtained at the two field strengths with a spatial resolution of 15 mm × 4 mm × 4 mm. There was a systematically higher signal‐to‐noise ratio observed at 3 T than at 1.5 T by a factor of 1.25. Mean image signal‐to‐noise ratio was in the range 27–44 at 1.5 T and 36–51 at 3 T. T of 129Xe gas in the partially inflated lungs was measured to be 25 ms and 18 ms at 1.5 T and 3 T, respectively. T of 129Xe gas in fully inflated lungs was measured to be 52 ms and 24 ms at 1.5 T and 3 T, respectively. Magn Reson Med, 2012. © 2012 Wiley Periodicals, Inc.
Severe fetal and neonatal hemolytic anemia due to a 198 kb deletion removing the complete β‐globin gene cluster
Authors: Verhovsek Madeleine , Shah Nirmish R. , Wilcox Ibifiri , Koenig Sara C. , Barros Tiago , Thornburg Courtney D. , Steinberg Martin H. , Luo Hong‐yuan , Chui David H.K. 
Published: January 2012

AbstractFetal and neonatal hemolytic anemia can be caused by (γδβ)0‐thalassemia deletions of the β‐globin gene cluster. Many of these deletions have not been well characterized, and diagnostic tests are not readily available, thus hampering carrier detection, family counseling, and antenatal diagnosis. We report and define a 198 kb deletion removing the entire β‐globin gene cluster, which was found in members of a multigeneration family of Irish/Scottish descent. The proband had life‐threatening fetal and neonatal hemolytic anemia which subsided by 1 year of age. Pediatr Blood Cancer 2012; 59: 941–944. © 2012 Wiley Periodicals, Inc.
New reaction kinetics for a high‐rate chemical bath deposition of the Zn(S,O) buffer layer for Cu(In,Ga)Se2‐based solar cells
Authors: Hariskos Dimitrios , Menner Richard , Jackson Philip , Paetel Stefan , Witte Wolfram , Wischmann Wiltraud , Powalla Michael , Bürkert Linda , Kolb Torsten , Oertel Mike , Dimmler Bernhard , Fuchs Bettina 
Published: January 2012

ABSTRACTWe report on a new chemical bath deposition kinetics for the zinc sulfide oxide Zn(S,O) buffer layer as used in Cu(In,Ga)Se2 (CIGS)‐based solar cells. The new approach allows at high rates a better control of the growth kinetics, the step coverage on the rough CIGS surface, and the [S]/([S]+[O]) ratio in the film. Layer thicknesses as needed for buffer layer applications can be grown at moderate temperatures of 60–80 °C within 5–8 min. Applying this high‐rate Zn(S,O) buffer in CIGS/Zn(S,O)/(Zn,Mg)O/ZnO:Al devices, we realized highly efficient small area solar cells, 30 × 30 cm2 submodules, and 60 × 120 cm2 full‐size modules. Copyright © 2012 John Wiley & Sons, Ltd.