bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thoracic omentalization for long-term management of neoplastic pleural effusion in a cat
Authors: Talavera Jesús , Agut Amalia , Fernández del Palacio Josefa , Martínez Carlos M. , Seva Juan I. 
Published: May 2009

Abstract
Case Description—An 11-year-old neutered female domestic longhair cat was evaluated because of a 1-week history of progressive dyspnea, signs of depression, and loss of appetite. A histiocytic sarcoma had been excised from the mammary gland 6 weeks earlier.
Clinical Findings—Physical examination findings were consistent with pleural effusion, and thoracic and abdominal radiography and ultrasonography revealed pleural effusion, a thoracic mass involving the aorta and pulmonary artery, and a caudal abdominal mass that most likely represented enlarged iliac lymph nodes. Cytologic examination of the pleural fluid and fine-needle aspirates from the iliac and right popliteal lymph nodes revealed abundant cells with neoplastic characteristics of indeterminate origin. The clinical diagnosis was generalized malignant neoplasia.
Treatment and Outcome—Pleural drainage was necessary every 5 to 6 days. Exploratory thoracotomy and biopsy of the mass were recommended for better characterization of the thoracic disease. Simultaneously, palliative treatment by advancement of the omentum into the thorax was performed. A final diagnosis of disseminated histiocytic sarcoma was made, and treatment with doxorubicin was begun after surgery. During the 13 months after surgery, the cat was free from signs of respiratory tract disease and had normal activity levels with good exercise tolerance. Fifteen months after surgery, the cat's clinical condition worsened and the cat died.
Clinical Relevance—Findings suggested that thoracic omentalization may be considered for palliative treatment of cats with refractory neoplastic pleural effusion when frequent thoracocentesis is necessary and other treatments are not suitable.
Aplastic anaemia in childhood. Description of two cases and review of the literature
Authors: Scalzone Maria , Coccia Paola , Maurizi Palma , Attinà Giorgio , Liotti Lucia , Cefalo Maria , Ruggiero Antonio , Riccardi Riccardo 
Published: May 2009

AbstractChildhood aplastic anaemia (AA) is an uncommon but potentially fatal haematological disorder. Patients with AA receive supportive care based on transfusions and timely treatment of opportunistic infections, along with specific therapies, which may be bone marrow transplantation and immunosuppressive therapy. Early diagnosis and supportive therapy are required to prevent fatal complications like overwhelming sepsis or life threatening haemorrhages. We report two cases of aplastic anaemia having a different aetiology. The diagnostic work-up and the therapeutic management for each case are described below.
The effects of oxcarbazepine treatment on vitamin B12 and folate levels, thyroid functions, sex hormones, and bone mineral density in epileptic patients
Authors: Vurucu Sebahattin , Gulgun Mustafa , Yesilkaya Ediz , Unay Bulent , Akin Ridvan 
Published: May 2009

AbstractThe aim of this study was to evaluate vitamin B12 and folate levels, thyroid functions, sex hormones and bone mineral density in idiopathic epileptic patients taking oxcarbazepine as monotherapy. Newly diagnosed pediatric patients with idiopathic partial epilepsy taking oxcarbazepine (OXC) as monotherapy were enrolled in this study. The pre-treatment and 6 months post-treatment values of vitamin B12, folate, thyroid functions, sex hormones, and bone mineral density (BMD) were obtained from all patients. A total of 32 patients (22 (68.8%) males and 10 (31.2%) females) were included in this study. The mean age was 7.4 ± 3.2 years (range: 2–14 years). There were no significant differences between the pre-treatment and 6 months post-treatment values of vitamin B12, folate, thyroid functions, sex hormones, and BMD. However, the 6 month post-treatment sex hormone binding globulin (SHBG) values (159.92 ± 48.14 nmol/L) were significantly higher than the pre-treatment values (137.88 ± 43.12 nmol/L) (p=0.009). We found that OCX treatment in children did not have an effect on serum folate and vitamin B12 levels, thyroid functions, sex hormones and BMD but caused increased SHBG. Over time, the increase in serum SHBG levels may lead to diminished bioactivity of sex steroids, and thus to reduced fertility. The further studies are needed to demonstrate the clinical importance of increased SHBG levels.
Posterior vertebral column subtraction osteotomy: a novel surgical approach for the treatment of multiple recurrences of tethered cord syndrome
Authors: Hsieh Patrick C. , Ondra Stephen L. , Grande Andrew W. , O'Shaughnessy Brian A. , Bierbrauer Karin , Crone Kerry R. , Halpin Ryan J. , Suk Ian , Koski Tyler R. , Gokaslan Ziya L. , Kuntz Charles 
Published: May 2009

Recurrent tethered cord syndrome (TCS) has been reported to develop in 5–50% of patients following initial spinal cord detethering operations. Surgery for multiple recurrences of TCS can be difficult and is associated with significant complications. Using a cadaveric tethered spinal cord model, Grande and colleagues demonstrated that shortening of the vertebral column by performing a 15–25-mm thoracolumbar osteotomy significantly reduced spinal cord, lumbosacral nerve root, and terminal filum tension. Based on this cadaveric study, spinal column shortening by a thoracolumbar subtraction osteotomy may be a viable alternative treatment to traditional surgical detethering for multiple recurrences of TCS.
In this article, the authors describe the use of posterior vertebral column subtraction osteotomy (PVCSO) for the treatment of 2 patients with multiple recurrences of TCS. Vertebral column resection osteotomy has been widely used in the surgical correction of fixed spinal deformity. The PVCSO is a novel surgical treatment for multiple recurrences of TCS. In such cases, PVCSO may allow surgeons to avoid neural injury by obviating the need for dissection through previously operated sites and may reduce complications related to CSF leakage. The novel use of PVCSO for recurrent TCS is discussed in this report, including surgical considerations and techniques in performing PVCSO.
Submandibular approach to the C2–3 disc level: microsurgical anatomy with clinical application
Authors: Russo Antonino , Albanese Erminia , Quiroga Monica , Ulm Arthur J. 
Published: May 2009

Object
Approaching the C2–3 disc level is challenging because of its location behind the mandible and the vital neurovascular structures overlying the area. The purpose of this study was to illustrate in a stepwise fashion the microsurgical anatomy of the submandibular approach to the C2–3 disc.

Methods
Ten adult formalin-fixed cadaveric specimens (20 sides) were studied. Particular attention was paid to the structures limiting the exposure. The authors measured the distance between the inferior border of the mandible and the marginal mandibular branch of the facial nerve running inferior to the mandible, the distance between the horizontal segment of the hypoglossal nerve and the hyoid bone, and the distance between the horizontal segment of the hypoglossal nerve and the mandible. They compared the location of the superior laryngeal nerve with regard to the submandibular and the standard Smith-Robinson approaches. A clinical case illustrating the usefulness of the surgical technique in this region is presented.

Results
The mean distance between the inferior border of the mandible and the lowest point of the marginal mandibular branch of the facial nerve was 6.7 ± 1.69 mm. The hypoglossal nerve's mean distance above the hyoid bone was 8.4 ± 1.78 mm and below the mandible was 19.6 ± 6.39 mm. The internal branch of the superior laryngeal nerve, with respect to the cervical spine, always entered the thyrohyoid membrane just inferior to the C-3 vertebral body. The superior laryngeal nerve was found to be an impediment to approaching the C2–3 disc through the standard Smith-Robinson approach.

Conclusions
The submandibular approach provides excellent exposure, with a perpendicular view of the C2–3 disc level. This approach is one of the options to be considered when dealing with high cervical pathologies.
Fluid‐particle drag in low‐Reynolds‐number polydisperse gas–solid suspensions
Authors: Yin Xiaolong , Sundaresan Sankaran 
Published: May 2009

AbstractLattice‐Boltzmann simulations of low‐Reynolds‐number fluid flow in bidisperse fixed beds and suspensions with particle–particle relative motions have been performed. The particles are spherical and are intimately mixed. The total volume fraction of the suspension was varied between 0.1 and 0.4, the volume fraction ratio ϕ1/ϕ2 from 1:1 to 1:6, and the particle size ratio d1/d2 from 1:1.5 to 1:4. A drag law with improved accuracy has been established for bidisperse fixed beds. For suspensions with particle–particle relative motions, the hydrodynamic particle–particle drag representing the momentum transfer between particle species through hydrodynamic interaction is found to be an important contribution to the net fluid‐particle drag. It has a logarithmic dependence on the lubrication cutoff distance and can be fit as the harmonic mean of the drag forces in bidisperse fixed beds. The proposed drag laws for bidisperse fixed beds and suspensions are generalized to polydisperse suspensions with three or more particle species. © 2009 American Institute of Chemical Engineers AIChE J, 2009
Structure and composition of CO2/H2 and CO2/H2/C3H8 hydrate in relation to simultaneous CO2 capture and H2 production
Authors: Kumar Rajnish , Englezos Peter , Moudrakovski Igor , Ripmeester John A. 
Published: May 2009

AbstractGas hydrates from a (40/60 mol %) CO2/H2 mixture, and from a (38.2/59.2/2.6 mol %) CO2/H2/C3H8 mixture, were synthesized using ice powder. The gas uptake curves were determined from pressure drop measurements and samples were analyzed using spectroscopic techniques to identify the structure and determine the cage occupancies. Powder X‐ray diffraction (PXRD) analysis at −110°C was used to determine the crystal structure. From the PXRD measurement it was found that the CO2/H2 hydrate is structure I and shows a self‐preservation behavior similar to that of CO2 hydrate. The ternary gas mixture was found to form pure structure II hydrate at 3.8 MPa. We have applied attenuated total reflection infrared spectroscopic analysis to measure the CO2 distribution over the large and small cavities. 1H MAS NMR and Raman were used to follow H2 enclathration in the small cages of structure I, as well as structure II hydrate. © 2009 American Institute of Chemical Engineers AIChE J, 2009
Analysis of a concept for predicting missing group interaction parameters of the UNIFAC model using connectivity indices
Authors: Mohs André , Jakob Antje , Gmehling Jürgen 
Published: May 2009

AbstractThe reliability of a method for the determination of missing group interaction parameters for the UNIFAC model1 proposed by Gani et al.2 was carefully examined. In this method, called CI‐UNIFAC, the missing group interaction parameters are determined by means of connectivity indices. Such a method would be very desirable since it would save a lot of time and money spent for measuring VLE data to fill the gaps in the UNIFAC parameter matrix. Because of the great importance of distillation processes for the chemical industry mainly the results for vapor‐liquid equilibria (VLE) were investigated using the data stored in the Dortmund Data Bank and VLE data measured. There are examples in which the method works quite well, but often the procedure leads to poor results. © 2009 American Institute of Chemical Engineers AIChE J, 2009
Educational program for teaching seepage studies (EPTS)
Authors: Allawi F. A. M. 
Published: May 2009

AbstractProgram EPTS is designed and implemented for teaching 2D steady state (isotropic or anisotropic) confined or unconfined seepage studies in soil engineering. The program is written in Visual Basic and utilizes the methods of linear COONS patches for the generation of meshes of the seepage domain and the Galerkin finite element approximation for the derived simultaneous equations. A full mathematical description of COONS' linear patches and the Galerkin approximation of any planar region(s) are included. Several computer printouts of typical engineering problems are presented to illustrate the accuracy and exactness of the program. Comput. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 19: 708–716, 2011
Virtual web sound laboratories as an educational tool in physics teaching in engineering
Authors: Martínez‐Jiménez P. , Varo M. , García M. C. , Pérez G. Pedrós , Martínez‐Jiménez J. M. , Posadillo R. , Varo‐Martínez E. P. 
Published: May 2009

AbstractIn this article, the use of Virtual Sound Laboratories together with Experimental ones in the university teaching system is explained. The computer programs (http://rabfis15.uco.es/portalsonido/ and http://rabfis15.uco.es/AspectosSonido/) can be used from the online area of Department of Applied Physics Internet server http://www.rabfis15. uco.es/lvct/ in order to be executed via web. These computer applications permit to simulate the speed and properties sound laboratories step by step and in the same way as they are run in the real laboratory, obtaining the corresponding calculations and plots. The aim of these tools is to help students to learn, to study, and to investigate on their own. Furthermore, students can prepare their experiment lessons before going to the laboratory and revise them whenever, and as many times as they want to. Consequently, by using the computer as a complementary educational tool, the quality of university teaching is greatly improved. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 19: 759–769, 2011
Changing outcomes and treatment strategies for wire induced coronary perforations in the era of bivalirudin use
Authors: Kini Annapoorna S. , Rafael Oana C. , Sarkar Kunal , Rajdev Sanjay , Jakkula Madhavi , Mares Angelica M. , Kaplish Dheeraj , Krishnan Prakash , Kim Michael C. , Sharma Samin K. 
Published: May 2009

AbstractObjectives: The objective of this study is to analyze the clinical outcomes and treatment strategies of coronary wire perforations (WPs) in the era of heparin use compared to the era of bivalirudin use. Background: Percutaneous coronary intervention (PCI) advances have led to progressive decrease in complications. Therefore, complex coronary lesions such as chronic total occlusions and calcified lesions are being attempted with stiff/hydrophilic wires with resultant higher incidence of coronary WP. Methods: A single‐center retrospective data analysis of coronary perforation (CP) for the last 4 years with review of coronary angiograms was done and WPs were identified. A simple classification scheme based on angiographic appearance of CP was made: Type I (“myocardial stain,” with no frank dye extravasation) and type II (“myocardial fan,” with dye extravasation to pericardial cavity or cardiac chambers). Results: Overall incidence of CP was 0.49% (82/16,859). Of these 50 (61%) were caused by WP; 30 occurred with heparin use (Group A) and 20 with bivalirudin use (Group B). WPs always occurred in type B2/C lesions (100%) and commonly with use of hydrophilic guidewires (70%). Major adverse cardiac events and cardiac tamponade were frequent in group A (50%) and none in group B (0%); P < 0.01. All WP in group B responded to stopping anticoagulation and prolonged balloon inflation, while group A type II perforations frequently required additional interventions (pericardiocentesis, coil embolization). Conclusions: Cardiac tamponade and major adverse cardiac events from WPs were less frequent with bivalirudin use compared to heparin use. This beneficial effect of bivalirudin may be explained on the basis of its short half‐life and reversible thrombin inhibition property. Therefore, bivalirudin may offer a safer alternative for anticoagulation in complex PCI. © 2009 Wiley‐Liss, Inc.
Decomposition of Organic Compounds in Water by Direct High Voltage Discharge
Authors: Yang H. , Zhang X. , Wen S. , Yuan W. 
Published: May 2009

AbstractDegradation of phenol in water using direct high voltage discharge was investigated. The effects of some factors, including the pressure of the oxygen input, oxygen flow rate, ground electrode diameter, and initial pH were studied on the removal rate of phenol. Higher oxygen pressure and alkaline circumstance improved the process of decomposition. Under the condition of ground electrode inner diameter of 29 mm, oxygen flow rate of 60 mL/min, the removal rate reached 90 % after 180‐min discharge treatment. The solution conductivity was found to change with the removal rate of phenol accordingly.
Second‐Order Nonlinear Optical Activity of Dipolar Chromophores Based on Pyrrole‐Hydrazono Donor Moieties
Authors: Abbotto Alessandro , Beverina Luca , Manfredi Norberto , Pagani Giorgio A. , Archetti Graziano , Kuball Hans‐Georg , Wittenburg Christian , Heck Jürgen , Holtmann Jan 
Published: May 2009

AbstractDonor1+donor2→acceptor: The second‐order NLO molecular properties of a class of dipolar chromophores that incorporate the following design elements are investigated: 1) a substituted hydrazono moiety as a strong donor; 2) a pyrrole ring as an auxiliary donor; 3) strong acceptor groups (see figure). Their first hyperpolarisabilities show good promise for use in electro‐optical devices.magnified imageA series of highly efficient and thermally stable second‐order nonlinear optical (NLO) dipolar donor–auxiliary donor–acceptor chromophores have been synthesised in which a hydrazono group and a pyrrole ring act as donor and auxiliary donor components, respectively, in combination with different aromatic and heteroaromatic acceptors. The new dyes have been systematically investigated by NMR spectroscopy, absorption spectroscopy, NLO measurements and thermal stability studies. NLO properties have been studied in detail by electro‐optical absorption (EOA) and hyper‐Rayleigh scattering (HRS) measurements in 1,4‐dioxane and DMSO, respectively. The results originating from the two different methods have been compared and analysed in detail. We found that the NLO properties measured by the EOA and HRS methods correlate with each other and converge to reveal the dye with the acceptor 2‐dicyanomethylene‐3‐cyano‐4,5,5‐trimethyl‐2,5‐dihydrofuran as the most efficient system. The unprecedented combination of a strong donor hydrazono group and the auxiliary donor effects of π‐excessive heteroaromatic rings afforded NLO chromophores with very high values (μgβ0(EOA) up to 2038×10−48 esu and β(HRS) up to 3980×10−30 esu at 1.5 μm).
Hydrogen‐Bonding‐Mediated Dynamic Covalent Synthesis of Macrocycles and Capsules: New Receptors for Aliphatic Ammonium Ions and the Formation of Pseudo[3]rotaxanes
Authors: Xu Xiao‐Na , Wang Lu , Wang Gui‐Tao , Lin Jian‐Bin , Li Guang‐Yu , Jiang Xi‐Kui , Li Zhan‐Ting 
Published: May 2009

AbstractDynamic covalent synthesis! Intramolecular hydrogen‐bonding induces amino‐ and aldehyde‐appended aryl amides to adopt a rigid “V”‐shaped conformation. As a result, stable two‐layered capsules can be assembled quantitatively through the one‐step formation of six imine bonds. The new capsules form complexes with aliphatic diammonium ions to give unique two‐layered pseudo[3]rotaxanes (see figure).magnified imageThis paper describes a novel, highly efficient approach to the self‐assembly of monomacrocycles and two‐layered capsules by using dynamic covalent chemistry. Intramolecular hydrogen‐bonding was used to preorganize aromatic amide‐based monomers that contain aldehyde and tert‐butoxycarbonylamino units. As a result, in the presence of an excess of trifluoroacetic acid (TFA), four monomers could self‐couple to produce macrocycles selectively through the formation of three imine or hydrazone bonds. Three dipodal precursors were also prepared by connecting two hydrogen‐bonded segments with a flexible linker. In the presence of TFA, these precursors could also self‐couple, leading to the exclusive formation of two‐layered capsules. As a result of intramolecular hydrogen‐bonding, all the macrocycles and capsules were stable in solution and could be purified by simple recrystallization. The new capsules were able to form complexes with linear propylenediammonium derivatives to give unique two‐layered pseudo[3]rotaxanes.
Evaluation and Comparison of a 3,5‐Dimethylphenyl Isocyanate Teicoplanin and Phenyl Isocyanate Teicoplanin Chiral Stationary Phases
Authors: SHEN Baochun , ZHANG Datong , YUAN Jianyong , XU Beijia , XU Xiuzhu 
Published: May 2009

AbstractTwo chiral stationary phases (CSP), phenyl isocyanate teicoplanin CSP (Ph‐TE) and 3,5‐dimethylphenyl isocyanate teicoplanin CSP (DMP‐TE) were prepared from the macrocyclic glycopeptide teicoplanin CSP (TE) using derivative agents, phenyl isocyanate or 3,5‐dimethylphenyl isocyanate, respectively. The evaluation and comparison of these two self‐made CSP were conducted using HPLC enantiomeric separations in two different mobile phase modes, i.e., the reversed phased (RP) mode and the polar organic (PO) mode. The chromatographic results were given as the retention, selectivity, and resolution factors. Twelve racemic analytes, including eight amino acids and four non‐amino acid compounds, amino‐(4‐hydroxyphenyl) acetic acid, 4‐(1‐hydroxyethyl)‐2‐methoxy phenol, lamivudine and oxazepam reached enantioseparation using the RPLC mobile phase on these two new CSP. The results show that the retention factors and stereoselectivity factors on DMP‐TE are somewhat bigger than those on Ph‐TE for most analytes in the RPLC mobile phase. Six amino alcohols reached enantiomeric separation on these two CSP using the PO mobile phase. The retention of these amino alcohols on DMP‐TE is longer than that on Ph‐TE but the selectivities have little difference between these two CSP. Comparison of the enantiomeric separations using self‐made Ph‐TE and DMP‐TE were conducted in order to gain a better understanding of the chiral recognition mechanism of the macrocyclic glycopeptide CSP.
Electrochemical Impedance Spectroscopic Measurements of Sexithiophene–Effect of the Electrode Nature and the Dopant (CuCl2) Content
Authors: NESSARK Belkacem , MAOUCHE Naïma 
Published: May 2009

AbstractElectrochemical impedance spectroscopic (EIS) measurements of sexithiophene (6T) were carried out according to the Pt/6T/M sandwich structure configuration, for various electrode materials (M=GC, ITO, Ag, Cu, Al) and for different doping levels of copper chloride (CuCl2). The results demonstrate that two types of charge transport are involved in the redox process at the electrode/6T interface and inside the bulk oligomer. The complex‐plane impedance plots obtained for various doping levels of CuCl2 exhibit arc shapes. The charge‐transfer resistance measured from the diagrams decreases systematically with the addition of the salt, leading to an increase of the oligothiophene conductivity.
Non‐isothermal Decomposition Kinetics, Specific Heat Capacity and Adiabatic Time‐to‐explosion of 1‐Amino‐1‐hydrazino‐2,2‐dinitroethylene (AHDNE)
Authors: XU Kangzhen , ZHAO Fengqi , SONG Jirong , CHANG Chunran , LI Meng , WANG Yaoyu , HU Rongzu 
Published: May 2009

Abstract The thermal behavior and non‐isothermal kinetics of the exothermic decomposition reaction of 1‐amino‐1‐hydrazino‐2,2‐dinitroethylene (AHDNE) were studied with DSC and TG/DTG methods. The kinetic equation obtained is dα/dT=1019.29(1−α)exp(−1.88×104/T)/β. The critical temperature of thermal explosion is 98.16 °C. The specific heat capacity of AHDNE was determined, and the standard molar specific heat capacity is 211.86 J·mol−1·K−1 at 298.15 K. The adiabatic time‐to‐explosion of AHDNE was also calculated to be 59.21 s. AHDNE is unstable and has much lower thermostability than 1,1‐diamino‐2,2‐dinitroethylene (FOX‐7).