bluuebunny/crossref_metadata_2025_split huggingface dataset:
Automated calibration of the simulation model of irrigation projects by harmony search optimization
Authors: Čistý Milan 
Published: February 2009

Automated calibration of the simulation model of irrigation projects by harmony search optimizationThe paper deals with calibration of the simulation models of hydraulic part of an irrigation project. Calibrated simulation model can be used in design, reconstruction, enlargement or maintenance of the pressurized irrigation systems. Computer model of the water distribution system is a valuable tool which can assist engineers and planners in analyzing the hydraulic performance of water delivery systems. Calibration of the water distribution model consists in comparison of pressures and flows predicted with observed pressures and flows for known operating conditions (i.e., pump operation, tank levels, pressure-reducing valve settings), and adjustment of the input data for the model to improve agreement between observed and predicted values. In practice, given a set or sets of measured state variables, engineers apply trial and error techniques with their judgment to vary the parameters and accomplish this task. Trial and error techniques are tedious do not guarantee reasonable results. The paper introduces the methodology of determination of calibrated parameters automatically. Described methodology of calibration is based on optimizing procedures using the harmony search approach.
Changes of springs' yield of Lublin Upland and Roztocze Region in 1998-2008
Authors: Michalczyk Zdzisław , Chmiel Stanisław , Głowacki Sławomir , Zielińska Beata 
Published: February 2009

Changes of springs' yield of Lublin Upland and Roztocze Region in 1998-2008
Lublin Upland and Roztocze region are known for the occurrence of a large number of springs of high yield. These springs are fed mainly from Cretaceous or Tertiary water-bearing horizon. In order to determine variability of springs' yield, 61 selected springs were analysed in spring periods of the years 1998-2008. Collected hydrometric materials allowed for comparing average and extreme yield values of springs in various physiographic regions within the period of 11 years. Average value was 76.1 dm3·s−1, while the mean of the minimal yields was 44.7 dm3·s−1 and of the maximal - 132.7 dm3·s−1. Coefficient of irregularity of the springs' yield ranged from 1.5 to 5.0, which may lead to the conclusion that the springs' yield is constant or varies slightly. In some cases the irregularity was higher but it was determined by hydrogeological, meteorological and local factors.
Re-placing Objects: Historical Practices for the Second Museum Age
Authors: Phillips Ruth 
Published: February 2009

The very existence of an object in a museum demonstrates that the past (and what we have made of it and in it) does not die. An object is best viewed as indicative of process, rather than static relations, and this process is ongoing in museums as elsewhere, so that there is a series of continuous social relations surrounding the object connecting 'field' and 'museums.'
Failure of temporal lobe resection for epilepsy in patients with mesial temporal sclerosis: results and treatment options
Authors: Ramos Edwin , Benbadis Selim , Vale Fernando L. 
Published: February 2009

Object
The purpose of this study was to identify the causes of failed temporal lobe resection in patients with mesial temporal sclerosis (MTS) and the role of repeat surgery for seizure control.

Methods
This is a retrospective study of 105 patients who underwent temporal lobe resection for MTS with unilateral electroencephalographic findings. The mean follow-up duration was 36 months (range 24–84 months). Surgeries were all performed by the senior author (F.L.V.).

Results
Following initial surgical intervention, 97 patients (92%) improved to Engel Class I or II (Group A), and 8 (8%) did not have significant improvement (Engel Class III or IV; Group B). These 8 patients were restudied using video-electroencephalography (EEG) and MR imaging. All major surgical failures occurred within 1 year after initial intervention. Reevaluation demonstrated 3 patients (37.5%) with contralateral temporal EEG findings. Five patients (62.5%) had evidence of ipsilateral recurrent discharges. Four patients underwent extended neocortical resection along the previous resection cavity. Their outcomes ranged from Engel Class I to Class III. Only 1 patient (12.5%) who failed to improve after initial surgery was found to have incomplete resection of mesial structures. This last patient underwent reoperation to complete the resection and improved to Engel Class I.

Conclusions
Failure of temporal lobe resection for MTS is multifactorial. The cause of failure lies in the pathological substrate of the epileptogenic area. Complete seizure control cannot be predicted solely by conventional preoperative workup. Initial surgical failures from temporal lobe resection often benefit from reevaluation, because reoperation may be beneficial in selected patients. Based on this work, the authors have proposed a management and treatment algorithm for these patients.
Mesoporous Hydrous Manganese Dioxide Nanowall Arrays with Large Lithium Ion Energy Storage Capacities
Authors: Liu Dawei , Garcia Betzaida Battalla , Zhang Qifeng , Guo Qing , Zhang Yunhuai , Sepehri Saghar , Cao Guozhong 
Published: February 2009

AbstractNovel nanowall arrays of hydrous manganese dioxide MnO2 · 0.5H2O are deposited onto cathodic substrates by the potentiostatic method from a mixed aqueous solution of manganese acetate and sodium sulfate. The deposition is induced by a change of local pH resulting from electrolysis of H2O, and hierarchical mesoporous nanowall arrays are formed as a result of simultaneous precipitation of manganese hydroxide and release of hydrogen gas bubbles from the cathode. The morphology and lithium ion intercalation properties are found to change appreciably with the concentration of the precursor electrolyte, with a significant reduction in specific surface area with an increased precursor concentration. For example, mesoporous nanowall arrays deposited from 0.1 M solution possess a surface area of ∼96 m2 g−1 and exhibit a stable high intercalation capacity of 256 mA hg−1 with a film of 0.5 µm in thickness, far exceeding the theoretical limit of 150 mA hg−1 for manganese dioxide bulk film. Such mesoporous nanowall arrays offer much greater energy storage capacity (e.g., ∼230 mA hg−1 for films of ∼2.5 µm) than that of anodic deposited films of the same thickness (∼80 mA hg−1). Such high lithium ion intercalation capacity and excellent cyclic stability of the mesoporous nanowall arrays, especially for thicker films, are ascribed to the hierarchically structured macro‐ and mesoporosity of the MnO2 · 0.5H2O nanowall arrays, which offer large surface to volume ratio favoring interface Faradaic reactions, short solid‐state diffusion paths, and freedom to permit volume change during lithium ion intercalation and de‐intercalation.
Electrocaloric Materials for Solid‐State Refrigeration
Authors: Lu Sheng‐Guo , Zhang Qiming 
Published: February 2009

AbstractThe electrocaloric effect (ECE) in dielectric materials has great potential in realizing solid‐state cooling devices with compact size and high efficiency, which are highly desirable for a broad range of applications. This paper presents the general considerations for dielectric materials to achieve large ECE and reviews the experimental efforts investigating ECE in various polar dielectrics. For practical cooling devices, an ECE material must possess a large isothermal entropy change besides a large adiabatic temperature change. We show that polar dielectrics operated at temperatures near order–disorder transition have potential to achieve large ECE due to the possibility of large change in polarization induced by electric field and large entropy change associated with the polarization change. We further show that indeed the ferroelectric poly(vinylidene fluoride–trifluoroethylene)‐based polymers display a large ECE, i.e., an isothermal entropy change of more than 55 J (kgK)−1 and an adiabatic temperature change of more than 12 °C, at temperatures above the order–disorder transition.
Combinations of cytogenetics and international scoring system can predict poor prognosis in multiple myeloma after high‐dose chemotherapy and autologous stem cell transplantation
Authors: Inamoto Yoshihiro , Kurahashi Shingo , Imahashi Nobuhiko , Fukushima Nobuaki , Adachi Tatsuya , Kinoshita Tomohiro , Tsushita Keitaro , Miyamura Koichi , Naoe Tomoki , Sugiura Isamu 
Published: February 2009

AbstractHigh‐dose chemotherapy followed by autologous stem cell transplantation (ASCT) is a standard therapy for newly diagnosed multiple myeloma. Combinations of recently proposed prognostic factors such as cytogenetics and international scoring system (ISS) may be useful to predict prognosis after ASCT. This study evaluated 60 consecutive patients who underwent ASCT in four institutes. The median age of patients was 57 years old. Cytogenetic analyses of bone marrow at diagnosis detected metaphase abnormalities in 9 of 51 patients and interphase abnormalities in six of 35 patients (17p13 deletion, t(4;14) and t(14;16)). Seventeen patients had ISS stage 3 at diagnosis. Twenty‐five patients who had any of these risk factors were defined as high risk. All patients were conditioned with high‐dose melphalan. With a median follow‐up of 3.4 years, overall survival and event‐free survival at 3 years were significantly worse in high‐risk patients (48% vs. 97%; P = 0.0005 and 16% vs. 37%; P = 0.038, respectively) despite the higher CR plus VGPR rate among high‐risk patients. In addition, survival at 1 year after progression was significantly worse in high‐risk patients despite salvage chemotherapy containing thalidomide (32% vs. 100%, P = 0.0001). Combinations of cytogenetics and ISS could readily predict prognosis. Quality of response is a poor surrogate marker for ultimate outcome. High‐risk patients may need more effective treatment. Am. J. Hematol. 2009. © 2009 Wiley‐Liss, Inc.
Red blood cell transfusion need at diagnosis adversely affects survival in primary myelofibrosis—increased serum ferritin or transfusion load does not
Authors: Tefferi Ayalew , Mesa Ruben A. , Pardanani Animesh , Hussein Kebede , Schwager Susan , Hanson Curtis A. , Steensma David P. 
Published: February 2009

AbstractSerum ferritin level at diagnosis was available in 185 patients with primary myelofibrosis (PMF); twenty‐two (12%) patients had serum ferritin >1,000 ng/mL and 32 (17%) were red blood cell (RBC) transfusion‐dependent. As expected, RBC transfusion need and increased serum ferritin displayed strong correlation (P < 0.0001); in addition, the latter but not the former correlated with advanced age (P < 0.0001). During median follow‐up of 28 months (range 0.5–231), peak serum ferritin levels exceeded 1,000 ng/mL in 41 (22%) patients. On multivariable analysis that included age as a covariate, RBC transfusion need at diagnosis (P < 0.0001), but not increased serum ferritin or transfusion load, predicted shortened survival. The prognostic relevance of RBC transfusion need was independent of the International Prognostic Scoring System and was also illustrated for leukemia‐free survival (P = 0.003). In PMF, the presence of a more severe erythropoietic defect, and not iron overload, has additional adverse prognostic value. Am. J. Hematol., 2009. © 2009 Wiley‐Liss, Inc.
Sustained and full fetal hemoglobin production after failure of bone marrow transplant in a patient homozygous for beta 0‐thalassemia: A clinical remission despite genetic disease and transplant rejection
Authors: Paciaroni Katia , Gallucci Cristiano , De Angelis Gioia , Alfieri Cecilia , Roveda Andrea , Lucarelli Guido 
Published: February 2009

AbstractAn adult patient affected by β0‐thalassemia major underwent allogeneic bone marrow transplant (BMT) from a matched related donor. Forty days after transplant, allogeneic engraftment failure and autologous β0‐thalassemic bone marrow recovery were documented. Red blood cell transfusions were required until 118 days post‐transplant. Thereafter, the haemoglobin (Hb) levels stabilized over 11.8 gr/dl throughout the ongoing 34‐month follow‐up, abolishing the need for transfusion support. The Hb electrophoresis showed 100% Hb Fetal (HbF). This unexplained case suggests full HbF production may occur in an adult patient with β0‐thalassemia major. Am. J. Hematol. 2009. © 2009 Wiley‐Liss, Inc.
Longitudinal changes of mtDNA A3243G mutation load and level of functioning in MELAS
Authors: Mehrazin Mahsa , Shanske Sara , Kaufmann Petra , Wei Ying , Coku Jorida , Engelstad Kristin , Naini Ali , De Vivo Darryl C. , DiMauro Salvatore 
Published: February 2009

AbstractMitochondrial encephalopathy, lactic acidosis, and stroke‐like episodes (MELAS), one of the most common mitochondrial multisystemic diseases, is most commonly associated with an A‐to‐G transition at nucleotide position 3243 (A3243G) in mitochondrial DNA. We studied 34 individuals harboring the A3243G mutation for up to 7 years; 17 had the full MELAS phenotype and 17 who were classified as “carrier relatives” because they were either asymptomatic or had some symptoms suggestive of mitochondrial disease but no seizures or strokes. Using the sensitive real‐time polymerase chain reaction to quantify the A3243G mutation, we confirmed that the percent mutation decreases progressively in DNA isolated from blood: the average percent decrease was 0.5% per year for fully symptomatic patients and 0.2% per year for oligosymptomatic carrier relatives. We also correlated mutant loads with functional status estimated by the Karnofksky score: even though the mutation load decreases, the level of functioning worsens in fully symptomatic patients, whereas the level of functioning of carrier relatives remains largely unchanged. This study suggests that A3243G mutant load in DNA isolated from blood is neither useful for prognosis nor for functional assessment. © 2009 Wiley‐Liss, Inc.
Quality of life and psychological distress in hypertrophic cardiomyopathy mutation carriers: A cross‐sectional cohort study
Authors: Christiaans Imke , van Langen Irene M. , Birnie Erwin , Bonsel Gouke J. , Wilde Arthur A.M. , Smets Ellen M.A. 
Published: February 2009

AbstractHypertrophic cardiomyopathy (HCM) is a common hereditary heart disease associated with heart failure and sudden death. Quality of life and psychological distress were found to be impaired in HCM patients but have never been assessed in mutation carriers, with or without manifest HCM. We aimed to assess quality of life and psychological distress, using standardized questionnaires, and to identify sociodemographic, clinical, risk and illness perception related predictors thereof in 228 HCM mutation carriers. HCM carriers' overall quality of life and distress scores did not differ from the Dutch population. Quality of life and distress were worst in carriers with manifest HCM before DNA testing and best in predictively tested carriers without HCM. The latter group had even significantly better quality of life than the general population. Substantial determinants of impaired physical quality of life were symptoms (β = 5.2, P = 0.001) and stronger belief in serious consequences of carriership (β = 3.5, P < 0.001); determinants of impaired mental quality of life were physical comorbidity (β = 3.0, P = 0.020) and a higher perceived risk of symptoms (β = 0.9, P = 0.001). Female gender (β = 1.4, P = 0.004) and stronger emotional reactions (β = 1.2, P = 0.002) were associated with more anxiety. Less understanding of carriership (β = 0.9, P = 0.007) and stronger belief in serious consequences (β = 0.8, P = 0.008) increased depression. Levels of quality of life and distress were not impaired compared to the Dutch population. Illness and risk perception related variables were major determinants of quality of life and distress. Because these variables can be addressed and adjusted during pre‐ and post‐test counseling, genetic counseling should focus on these determinants. © 2009 Wiley‐Liss, Inc.
Micelle and Vesicle Formation of Amphiphilic Nanoparticles
Authors: Nikolic Marija S. , Olsson Charlotta , Salcher Andrea , Kornowski Andreas , Rank Anja , Schubert Rolf , Frömsdorf Andreas , Weller Horst , Förster Stephan 
Published: February 2009

AbstractNanoparticle brushes: Complex nanostructures can be formed by self assembly of amphiphilic CdSe/CdS core–shell nanoparticles that bear a brushlike layer of poly(ethylene oxide) chains. This route is based on controlling the volume fractions of hydrophilic and hydrophobic moieties within the particles and allows the formation of micellar, cylindrical, or vesicular nanoobjects (see picture).magnified image
Ratiometric Single‐Nanoparticle Oxygen Sensors for Biological Imaging
Authors: Wu Changfeng , Bull Barbara , Christensen Kenneth , McNeill Jason 
Published: February 2009

AbstractIt makes sense: Conjugated polymer nanoparticles doped with a platinum porphyrin dye exhibit bright phosphorescence that is highly sensitive to the concentration of molecular oxygen. The small size, extraordinary brightness, excellent sensitivity, and ratiometric emission, together with the demonstration of single‐particle sensing and cellular uptake, indicate the potential of the nanoparticle sensors for quantitative mapping of local molecular oxygen concentration.magnified image
Cerulenin Analogues as Inhibitors of Efflux Pumps in Drug‐resistant Candida albicans
Authors: Diwischek Florian , Morschhäuser Joachim , Holzgrabe Ulrike 
Published: February 2009

AbstractOverexpression of the ABC transporters Cdr1 and Cdr2 or the major facilitator Mdr1 causes multidrug resistance in the human fungal pathogen Candida albicans. The fatty acid synthesis inhibitor cerulenin and the structurally unrelated Golgi transport inhibitor brefeldin A are substrates for both types of efflux pumps in Candida albicans. In an effort to overcome efflux pump‐mediated drug resistance in Candida albicans, cerulenin analogues were generated using a variety of synthesis pathways. The so obtained cerulenin derivatives were tested on multidrug‐resistant Candida albicans isolates which constitutively overexpress either Mdr1 or Cdr1 and Cdr2. Some of these compounds were found to decrease Mdr1‐mediated resistance to brefeldin A up to eightfold compared to the control.
A fluorescence study of differently substituted 3‐styrylindoles and their interaction with bovine serum albumin
Authors: Singh Anil K. , Asefa Abera 
Published: February 2009

AbstractInteraction of 3‐styrylindoles 1–8 viz. 3‐(2‐phenylethenyl‐E)‐NH‐indole (1), 3‐[2‐(4‐nitrophenyl)ethenyl‐E]‐NH‐indole (2), 5‐bromo‐3‐[2‐(4‐nitrophenyl)ethenyl‐E]‐NH‐indole (3), 5‐methoxy‐3‐[2‐(4‐nitrophenyl)ethenyl‐E]‐NH‐indole (4), 3‐[2‐(4‐cyanophenyl)ethenyl‐E]‐NH‐indole (5), 3‐[2‐(4‐cyanophenyl)ethenyl‐E]‐N‐ethylindole (6), 5‐bromo‐3‐[2‐(4‐chlorophenyl)ethenyl‐E]‐NH‐indole (7) and 5‐methoxy‐3‐[2‐(4‐chlorophenyl)ethenyl‐E]‐NH‐indole (8) with bovine serum albumin (BSA) was examined by UV–vis and steady‐state fluorescence spectroscopy. The fluorescence intensity of 1–8 increases with the increasing BSA concentration. Upon binding with BSA, while 1 and 5–8 show a blue shift in their λf max, 2–4 do not exhibit such behavior. Compounds 1–8 also quench the 345 nm fluorescence of BSA in phosphate buffer (λex, 280 nm). These compounds intercalate in the hydrophobic regions of BSA, as evidenced by the determination of BSA binding site micropolarity using compounds 2–8. As evidenced by the estimation of energy transfer efficiency and distance between the donor (BSA‐Trp‐212) and the acceptor (3‐styrylindoles), the halo‐substituted compounds 3 and 7 interact with BSA more effectively than the other 3‐strylindoles. These compounds have potential for use as neutral and hydrophobic fluorescence probes for examining the microenvironments in proteins, polymers, micelles, etc. Copyright © 2008 John Wiley & Sons, Ltd.
Flow‐injection chemiluminescence method for the determination of naphazoline hydrochloride and oxymetazoline hydrochloride
Authors: Wang Nan‐Nan , Shao Yan‐Qing , Tang Yu‐Hai , Yin He‐Ping , Wu Xiao‐Zhong 
Published: February 2009

AbstractA sensitive and simple flow‐injection chemiluminescence (FI‐CL) method, which was based on the CL intensity generated from the redoxreaction of potassium permanganate (KMnO4)–formaldehyde in vitriol (H2SO4) medium, has been developed, validated and applied for the determination of naphazoline hydrochloride and oxymetazoline hydrochloride. Besides oxidants and sensitizers, the effect of the concentration of H2SO4, KMnO4 and formaldehyde was investigated. Under the optimum conditions, the linear range was 1.0 × 10−2–7.0 mg/L for naphazoline hydrochloride and 5.0 × 10−2–10.0 mg/L for oxymetazoline hydrochloride. During seven repeated inter‐day and intra‐day precision tests of 0.1, 1.0 and 10.0 mg/L samples, the relative standard deviations all corresponded to reference values. The detection limit was 8.69 × 10−3 mg/L for naphazoline hydrochloride and 3.47 × 10−2 mg/L for oxymetazoline hydrochloride (signal‐to‐noise ratio ≤3). This method has been successfully implemented for the determination of naphazoline hydrochloride and oxymetazoline hydrochloride in pharmaceuticals. Copyright © 2009 John Wiley & Sons, Ltd.
Chemiluminescence determination of promazine in human serum and drug formulations using Ru(phen)32+–Ce(IV) system and a chemometrical optimization approach
Authors: Rezaei B. , Mokhtari A. 
Published: February 2009

AbstractA new chemiluminescence (CL) method using flow injection has been described for the rapid and sensitive determination of promazine hydrochloride (PMH). The method is based on the CL reaction of PMH with tris(1,10 phenanthroline)ruthenium(II), [Ru(phen)32+] and Ce(IV) in sulfuric acid medium. Effects of chemical variables were investigated employing central composite design and response surface methodology. Under the optimum conditions, the CL intensity was proportional to the concentration of the drug in solution over the ranges 0.020–0.32 and 0.32–32 µg/mL. The limit of detection (signal‐to‐noise ratio = 3) was 0.012 µg/mL. The method was applied successfully to the determination of PMH in drug formulations and human serum (recovery percentages between 96.7 and 105.0%). The relative standard deviation for 11 replicate determinations of 1.5 µg/mL of PMH was 1.7%. The minimum sampling rate was 100 samples per hour. Copyright © 2009 John Wiley & Sons, Ltd.
Determination of nucleic acid by [tetra‐(3‐methoxy‐4‐hydroxyphenyl)]–Tb3+ porphyrin as the fluorescence spectral probe in bis(2‐ethylhexyl)sulfosuccinate sodium salt micelle system
Authors: Chen Xin , Wei Qin , Han Yanyan , Sun Shuting , Wu Dan , Du Bin 
Published: February 2009

AbstractA new system for the determination of nucleic acid by rare earth metallic porphyrin of [tetra‐(3‐methoxy‐4‐hydroxyphenyl)]–Tb3+ [T(3‐MO‐4HP)–Tb3+] porphyrin as fluorescence spectral probe has been developed in this paper. Nucleic acid can enhance the fluorescence intensity of the T(3‐MO‐4HP)–Tb3+ porphyrin in the presence of bis(2‐ethylhexyl)sulfosuccinate sodium salt(AOT) micelle. In pH 8.00 Tris–HCl buffer solution, under optimum conditions, the enhanced fluorescence intensity is in proportion to the concentration of nucleic acids in the range of 0.05–3.00 µg mL−1 for calf thymus DNA (ct DNA) and 0.03–4.80 µg mL−1 for fish sperm DNA(fs DNA). Their detection limits are 0.03 and 0.01 µg mL−1, respectively. In addition, the binding interaction mechanism between T(3‐MO‐4HP)–Tb3+ porphyrin and ct DNA is also investigated by resonance scattering and fluorescence spectra. The maximum binding number is calculated by molar ratio method. The new system can be used for the determination of nucleic acid in pig liver, yielding satisfactory results. Copyright © 2009 John Wiley & Sons, Ltd.