bluuebunny/crossref_metadata_2025_split huggingface dataset:
Wavelet‐Based Method for Generating Nonstationary Artificial Pulse‐Like Near‐Fault Ground Motions
Authors: Amiri G. Ghodrati , Rad A. Abdolahi , Hazaveh N. Khanmohamadi 
Published: October 2014

AbstractA method to generate a suite of artificial near‐fault ground motion time histories for specified earthquakes is presented. A wavelet‐based nonstationary (WB‐NS) model has been employed to effectively capture the time‐varying frequency content of a particular acceleration record and continuous wavelet transform has been used to simulate the largest velocity pulse. Furthermore, an iterative procedure using discrete wavelet transform is utilized to modify an earthquake ground motion and generate energy‐compatible ground motion. Eventually, the artificial near‐fault accelerogram is achieved via the superposition of a coherent extracted velocity pulse with a random acceleration record corresponding to a WB‐NS model and multiplied by a time‐modulating envelope function. The effectiveness of the method is demonstrated by comparing the spectral response and Arias intensity curves of the simulated accelerograms with those of the real records.
An Adaptive Wavelet Frame Neural Network Method for Efficient Reliability Analysis
Authors: Dai Hongzhe , Xue Guofeng , Wang Wei 
Published: October 2014

AbstractArtificial neural networks (ANNs) method is widely used in reliability analysis. However, the performance of ANNs cannot be guaranteed due to the fitting problems because there is no efficient constructive method for choosing the structure and the learning parameters of the network. To mitigate these difficulties, this article presents a new adaptive wavelet frame neural network method for reliability analysis of structures. The new method uses the single‐scaling multidimensional wavelet frame as the activation function in the network to deal with the multidimensional problems in reliability analysis. Because the wavelet frame is highly redundant, the time–frequency localization and matching pursuit algorithm are respectively utilized to eliminate the superfluous wavelets, thus the obtained wavelet frame neural network can be implemented efficiently. Five examples are given to demonstrate the application and effectiveness of the proposed method. Comparisons of the new method and the classical radial basis function network method are made.
Body composition measurements using bioimpedance analysis in peritoneal dialysis patients are affected by the presence of dialysate
Authors: Kang Seok Hui , Cho Kyu Hyang , Park Jong Won , Yoon Kyung Woo , Do Jun Young 
Published: October 2014

AbstractThe presence of peritoneal dialysate when performing bioimpedance analysis may affect body composition measurements. The aim of this study was to evaluate the impact of dialysate on body composition measurements in Asians. Forty‐one patients undergoing maintenance peritoneal dialysis in our hospital peritoneal dialysis unit were included in this study. Dialysate was drained from the abdomen prior to measurement, and bioimpedance analysis was performed using multi‐frequency bioimpedance analysis, with each subject in a standing position (D‐). Dialysate was then administered and the measurement was repeated (D+). The presence of peritoneal dialysate led to an increase in intracellular water (ICW), extracellular water (ECW), and total body water (D‐: 20.33 ± 3.72 L for ICW and 13.53 ± 2.54 L for ECW; D+: 20.96 ± 3.78 L for ICW and 14.10 ± 2.59 L for ECW; P < 0.001 for both variables). Total and trunk oedema indices were higher in the presence of peritoneal dialysate. In addition, the presence of peritoneal dialysate led to an overestimation of mineral content and free fat mass (FFM) for the total body; but led to an underestimation of body fat (D‐: 45.80 ± 8.26 kg for FFM and 19.30 ± 6.27 kg for body fat; D+: 47.51 ± 8.38 kg for FFM and 17.59 ± 6.47 kg for body fat; P < 0.001 for both variables). Our results demonstrate that the presence of peritoneal dialysate leads to an overestimation of FFM and an underestimation of fat mass. An empty abdomen is recommended when evaluating body composition using bioimpedance analysis.
Long‐Term Follow‐Up in AV Junction Ablation via the SVC in Patients Undergoing Concurrent Device Implantation: A Single Center Experience
Authors: ISSA ZIAD F. , AMR BASHAR S. , LAHAM HYTHAM 
Published: October 2014

BackgroundAblation of the atrioventricular junction (AVJ) combined with pacemaker implantation (the “ablate and pace” approach) has been an effective treatment strategy for patients with atrial fibrillation (AF) when rate control is the goal of therapy and when rapid ventricular rates during AF is refractory to pharmacologic therapy.ObjectiveThis report describes the feasibility and safety of catheter ablation of AVJ via a superior vena cava (SVC) approach performed during concurrent pacemaker or defibrillator implantation.MethodsA total of 170 consecutive patients with drug‐refractory AF underwent combined AVJ ablation and pacemaker or defibrillator implantation using the axillary or subclavian venous approach. The acute and long‐term success of achieving complete atrioventricular (AV) block, the impact of the ablation procedure on the total procedure time and fluoroscopy duration, and procedural complications were evaluated.ResultsA dual‐chamber device in 61% of patients and biventricular device in 39% patients. Catheter ablation of the AVJ was acutely successful in 166 patients (97.6%). The mean procedure time of the AVJ ablation was 7.0 ± 3.3 minutes and the mean fluoroscopy time during the ablation procedure was 3.1 ± 3.2 minutes. The average duration of RF energy application required to achieve complete AV block was 129 ± 65 seconds. Procedural complications were observed in seven patients. Complete AV block persisted in 96% of patients during a mean follow‐up of 26 ± 16 months.ConclusionCatheter ablation of the AVJ can be performed successfully and safely using the SVC approach in patients undergoing concurrent device implantation, and it may offer several advantages over the conventional femoral approach.
Primary Cutaneous B‐Cell Lymphoblastic Lymphoma in Children. Report of Two Cases
Authors: Billon Raphaelle , Dainese Linda , Constantinescu Georgiana , Boudjemaa Sabah , Chretien‐Marquet Bertrand , Fasola Sylvie , Vazquez Marie‐Paule , Picard Arnaud , Kadlub Natacha 
Published: October 2014

AbstractPrecursor B‐cell lymphoblastic lymphoma (B‐LBL) is an uncommon high‐grade neoplasm. Primary cutaneous B‐LBL is uncommon and clinical diagnosis is difficult. We report two cases of primary cutaneous B‐LBL that had initially been diagnosed as an infected dermoid cyst and lipoma, respectively, and referred for excision. The cases demonstrate the importance of biopsy and histopathologic examination of subcutaneous tumors to guide appropriate therapy.
Ophthalmic Rosacea: Case Report in a Child and Treatment Recommendations
Authors: Potz‐Biedermann Christiane , Mehra Tarun , Deuter Christoph , Zierhut Manfred , Schaller Martin 
Published: October 2014

AbstractWe report a rare case of rosacea with ocular involvement in a child that remitted with prolonged anti‐inflammatory oral tetracycline therapy and provide general expert recommendations. A 14‐year‐old girl presented with discrete papules and pustules on both cheeks with blepharitis and conjunctivitis. Ophthalmologic examination confirmed bilateral severe blepharitis, as well as a corneal infiltrate in the right eye with additional neovascularization. The diagnosis of rosacea with ocular involvement was made. In addition to the existing antibiotic and anti‐inflammatory topical eye therapy, systemic treatment with minocycline 50 mg twice a day was started. After marked improvement, the dose was reduced to 50 mg once a day. After further amelioration, treatment was switched to maintenance therapy with 40 mg of prolonged‐release doxycycline. Three years after a 12‐month course of anti‐inflammatory therapy, the patient remained recurrence free.
Family strain and its relation to psychosocial dysfunction in children and adolescents after liver transplantation
Authors: Kaller T. , Petersen I. , Petermann F. , Fischer L. , Grabhorn E. , Schulz K.‐H. 
Published: October 2014

AbstractParental functioning is essential to children's development. Therefore, this cross‐sectional single‐center study examined the prevalence of family strain in 181 parents and its associations to psychosocial functioning in their children after LT. Median age at LT was one yr. Mean time elapsed since LT was 5.8 yr. The IFS, and the SDQ were applied to parents. Family strain in the present sample was comparable to that in the German normative group of families with a chronically ill or disabled child, but families of LT recipients showed a significantly higher financial impact, impact on coping, and impact on siblings (p < 0.001). Younger age of patients at survey, a more severe clinical course, child's restrictions, and financial losses following LT were determined as significant predictors of family strain (R2 = 0.42). Parents reported less family strain after living‐related compared with deceased donation. Family strain was significantly correlated to psychosocial dysfunction in children post‐LT. Present findings demonstrate a risk of maladjustment to the post‐LT condition in families. They emphasize the importance of psychological assessment of parents and patients during transplant and follow‐up to ensure the best achievable long‐term outcome of patients.
Vivipary in Ophiorrhiza mungos L. – a rare phenomenon in angiosperms
Authors: Dintu K. P. , Sibi C. V. , Ravichandran P. , Satheeshkumar K. 
Published: October 2014

AbstractVivipary, the precocious germination of seeds within the parent plant, is a specialised feature of evolutionary and biological importance that ensures survival of a plant. Reports on vivipary in angiosperms are rare, accounting for <0.1% of flowering plants. Here, we report a remarkable case of occurrence of vivipary in Ophiorrhiza mungos. A study was conducted to collect information on the morphology of the capsules that support vivipary, environmental factors that induce vivipary, survival mode and the survival of viviparous seedlings. The hydroscopic movement of the cup‐shaped capsules of O. mungos was found to help in viviparous germination during the rainy season. Of the total seeds in a capsule, 70% showed viviparous germination. The seedlings remaining inside the capsule attain a height of 0.98 ± 0.4 cm and reach the ground when the capsule falls. On the ground, seedlings obtain easy anchorage to the substratum since they have already germinated. Vivipary appears to be an adaptation of O. mungos to the rainy season for ensuring viable offspring. This suggests that vivipary in this species might be artificially induced by continuous spraying with water to rescue seeds in all seasons for use in large‐scale propagation to meet increasing market demand and conservation of this valuable anticancer medicinal herb.
Quaternary reef response to sea‐level and environmental change in the western Atlantic
Authors: Gischler Eberhard 
Published: October 2014

AbstractThe tropical–subtropical western Atlantic realm harbours abundant fringing reefs, two major barrier reefs (Belize, Florida), several atolls and large reef‐fringed carbonate platforms (Bahamas). Data from Belize and south Florida indicate that major barrier reefs were established during the high sea‐levels of the long and warm marine isotope stage 11. Reefs formed during Pleistocene sea‐level highstands, whereas erosion, non‐deposition and the formation of subaerial exposure surfaces prevailed during lowstands of sea‐level (Florida, Bahamas); exposed reefs and platforms with siliciclastic hinterlands were characterized by deposition of clays and sands on fluvial plains (Belize). Elevated terraces and outcrops of reefs of the last interglacial of marine isotope stage 5e are evidence of higher than present sea‐level and temperature that sustained large reef‐fringed carbonate platforms and ramps in the Florida–Bahamas region and Central America (Belize, Mexico), including ooid deposition in warm and shallow waters. During the highstands of marine isotope stages 5c and 5a, at sea‐levels several metres lower than today, fringing reefs developed in parts of the Caribbean, for example, in south Florida (‘outlier reefs’). Data from the island of Barbados support the contention that the postglacial sea‐level rise from about −120 m was rapid and punctuated by two meltwater pulses Ia and Ib, which bracket the beginning and end of the Younger Dryas, respectively. After reflooding of shelves in the early Holocene, reefs developed preferentially on highs of the underlying karstified Pleistocene limestone surface and on former river channel bars. Many reefs in the western Atlantic region kept pace with Holocene sea‐level rise whereas some were drowned. Reasons for reef drowning are debated and include sea‐level rise, elevation of antecedent topography, and deterioration of environmental conditions such as high nutrient input. Apart from sea‐level and antecedent topography, factors such as exposure to waves and currents, storms, and sedimentation have controlled reef development. The historical decline of acroporid corals in the Caribbean realm has been attributed to cooling following the Holocene thermal optimum; however, historical die‐offs of reef‐building corals and other reef organisms suggest that some if not all recent declines were unprecedented during the Holocene. Rising temperatures, decreasing carbonate saturation, increased frequency of major storms, high nutrient concentrations and sedimentation, overfishing, and disease certainly played a role in decline, but systematic studies relating these environmental factors to Holocene reef‐building are only in the early stages.
Quaternary atoll development: New insights from the two‐dimensional stratigraphic forward modelling of Mururoa Island (Central Pacific Ocean)
Authors: Montaggioni Lucien F. , Borgomano Jean , Fournier François , Granjeon Didier 
Published: October 2014

AbstractKnowledge about the Quaternary evolution of mid‐ocean atolls comes mainly from drilling and field observations carried out on a number of Pacific carbonate islands. However, little is known about the early to mid Pleistocene atoll development history, especially at margin and foreslope settings. Using previous field and subsurface data from Mururoa Atoll and a process‐based modelling software (DIONISOS), a two‐dimensional forward stratigraphic model of atoll development is proposed for the past 1·8 million years (Myr). Observational data from vertical to inclined coring, seismic and bathymetric surveys indicate that, from approximately 0·45 to 0·40 million years before present (Ma), carbonate deposition at Mururoa Atoll resulted in a series of mostly prograding reef units. The model is first constrained at the base by the shape and topography of the pre‐Quaternary basement. A number of sensitivity tests were performed to define the respective influence of variant parameters. The best‐fit development scenario that accounts for the overall geometry and stratigraphic architecture of the Quaternary sediment packages is obtained by using the sea‐level curve by Milleret al. (2005), uniform subsidence rate of 105 m Myr−1, and carbonate production rates gradually increasing from 0·50 to 8 mm yr−1between 1·80 Ma and the present. Additional controlling parameters include subaerial erosion (at a constant rate of 0·25 m/kyr), wave‐energy and sediment‐transport processes. The stratigraphic forward model predicts a succession of three distinct types of carbonate systems that have developed since the earliest Pleistocene: toe of slope systems from 1·80 Ma to about 0·80 Ma, open‐platform systems from 0·80 Ma to 0·50 Ma, and framework‐reef systems from about 0·50 Ma to the present. The development of these different systems is most likely to be controlled by climate and changes in sea‐level cycles. During the low‐amplitude 41 kyr cycle periods of the earliest Pleistocene, ambient conditions were not conducive to framework‐reef growth; shallow‐water carbonate sedimentation was dominantly gravity‐driven, operating along the platform foreslopes only. During the Mid‐Pleistocene Climate Transition, narrow, open‐platform units have developed at the upper parts of the pre‐Quaternary basement flanks. With the onset of the high‐amplitude 100 kyr sea‐level modes and climate restoration, reef frameworks started to be generated. These models from Mururoa agree with a number of previous studies suggesting that most of the true framework reefs were not initiated prior to 0·50 Ma. Mururoa Atoll is demonstrated to be a robust analogue for providing more realistic interpretations of the development history of Pacific atolls. Further modelling with three‐dimensionalDIONISOScould generate better predictions by taking into account hydrodynamic and transport parameters more accurately.
Deconstructing Community
Authors: Barrett Gene 
Published: October 2014

AbstractThis article develops a conceptual framework for the analysis of community that is designed to explain the complexity, diversity and changes that account for comparative community differentiation in the modern world. The concept is deconstructed into a number of constituent dimensions and dynamic processes, revealing the interrelationships between interest, normativity and identity. Contradictory processes associated with solidarity and exclusion are shown to push and pull at each other through the different dimensions. These processes are manifested in people's everyday lives, often simultaneously. This complexity is a source of both the vulnerability and the strength of communities. The article concludes with a number of diagnostic tools for deconstructing community and a three‐pronged approach for community revitalisation.
A Retrospective study on the association between vitreous degeneration and cataract in dogs
Authors: Park Young‐Woo , Kim Jun‐Young , Jeong Man‐Bok , Kim Soo‐Hyun , Yoon Junghee , Seo Kangmoon 
Published: October 2014

AbstractObjectiveThis study was performed to evaluate the relationship between cataract and vitreous degeneration on ultrasonography (VDU) in dogs.Materials and methodsMedical records of dogs were retrospectively reviewed. The dogs presented at the Veterinary Medical Teaching Hospital of Seoul National University from January 2009 to December 2011 for ocular ultrasonography to investigate the suitability of the patient for cataract surgery. A total of 97 dogs (179 eyes) were included in this study. Data collected included age, gender, ophthalmic examination, and ultrasonographic examination. Cataract was classified into five grades by ophthalmic examination (0: normal, 1: incipient, 2: immature, 3: mature, and 4: hypermature).VDUwas classified into 4 grades (0: no degeneration, 1: mild vitreous degeneration, 2: moderate vitreous degeneration, and 3: marked vitreous degeneration).ResultsThe mean rank ofVDUgrades increased with the progression of cataracts, and statistical significant differences were shown between cataracts grade 0 and 2 (P = 0.010), between 0 and 3 (P < 0.001), between 0 and 4 (P = 0.010), between 1 and 3 (P = 0.03), between 1 and 4 (P = 0.02), and between 2 and 4 (P = 0.04). There were no significant differences in age and gender according to the cataract grades. There was no statistical significant difference in the mean rank ofVDUgrades between cataractous eyes with lens‐induced uveitis (LIU) and those withoutLIU.ConclusionsThe results indicated that increasedVDUwas associated with more severe cataract grades in dogs.
Novel Open Circuit Displacement Control Architecture in Heavy Machinery
Authors: Ivantysyn Roman , Weber Jürgen 
Published: October 2014

Motivated by the ever-stricter demands by lawmakers to lower emissions of mobile machinery and increasing fuel prices, mobile machinery has gone through a paradigm shift. Fuel efficiency has become a major selling point of machine producers. Even the heavy machinery branch, which is mainly dominated by reliability, productivity and serviceability, has started to feel this change. Hydraulic systems of large scale, as can be found in mining excavators, have typically been based on simplicity and durability. Typical architectures are open-center hydraulic systems, which were designed with robustness and productivity in mind; however they lack competiveness with other hydraulic systems in terms of energy efficiency.
Displacement control has shown promising potential especially in multi-actuator machines such as excavators. The technology has so far been demonstrated in closed circuit applications on small-scale machines (below 30 t). Large scale excavators however should in general be more suitable for displacement control due to their relatively small hydraulic component cost compared to the machine and operating cost, larger energy recovery potential due to larger mass movement, more flexibility in space management and greater hydraulic power installed. Large machines feature already several smaller pumps instead of a single large pump, which is important with respect to the fact that displacement control is based on one pump per actuator. A challenge for displacement control on large-scale machinery is handling their high volumetric flow-demands on the system. Today many large excavators feature a float valve, which short-circuits the cylinder chambers and ensures rapid lowering of the attachment under aiding load. Float valves ensure fast cycle times and are essential for high productivity, however incorporating this feature in displacement control is a challenge, especially in closed circuit systems.
Open circuit displacement control systems have greater flexibility than closed circuit solutions in working with float-valves and dealing with the high volumetric flows. Additionally the open circuit architecture is ideal for pump-flow-sharing, the strategy to connect two or more pumps with one actuator, which can be practiced when not all actuators move at the same time.
This paper compares displacement control in open circuit form with valve-controlled actuation in a mining excavator and shows several fuel saving potentials. The Open Center system was simulated and results were validated with measurements. The proposed open circuit displacement control solutions are implemented virtually and replace the valve-controlled system. Components and system-architecture were carefully chosen in order to ensure reliability, minimal component changes and redundancy that compare to the robustness of today’s system.