bluuebunny/crossref_metadata_2025_split huggingface dataset:
Induced anomalous current in relativistic hydrodynamics with chiral anomaly
Authors: Pu Shi , Gao Jian-hua 
Published: October 2012

Abstract
We discuss the triangle anomalous hydrodynamics in the presence of an external magnetic field B
µ. Without loss of generality, we consider the case of a conserved vector current and non-conserved axial current. In order to ensure the positivity of the entropy production rate, two new terms proportional to the magnetic field B
µ and the vorticity ω
µ, which are associated with the Chiral Magnetic Effect and Chiral Vortical Effect in heavy ion collisions, need to be introduced. The transport coefficients of these new terms are also determined by the entropy principle.
Polymer-glue as a life and kidney function saver: a life-threatening hemorrhage in the ruptured upper pole artery of the kidney managed by percutaneous embolization — a case report and literature review
Authors: Antoniewicz Artur , Wojtkowska Izabela , Dziekiewicz Mirosław , Kępka Cezary , Kremis Elżbieta , Zapała Łukasz , Skiba Ryszard , Stępińska Janina 
Published: October 2012

Abstract
In this paper we report the case of a nearly fatal hemorrhage in the artery of the renal upper pole that occurred in a 84-year-old woman on anticoagulation treatment in connection with aortic valve replacement 4 days prior to the incident. The artery was injured during the evacuation of a hematoma of the right pleural cavity. While the patient was in the intensive care unit recovering from cardiac valve surgery, the consulting urologist was summoned in order to cope with massive hematuria and acute urine retention. Unfortunately, conservative urological management based on catherization via a three-way catheter and constant transurethral lavage with saline was unsuccessful. Angio-computed tomography revealed a ruptured branch of the renal upper pole artery. A highly selective embolization using histoacryl injection during percutaneous angioplasty was performed. There were no complications in the following days. The patient was subject to postoperative follow-up at 3, 6 and 9 months and renal scintigraphy was performed at 6 months revealing symmetrical function of both kidneys without any changes in the upper pole of the right kidney.
Characterisation of VOC composition of Slovak monofloral honeys by GC×GC-TOF-MS
Authors: Špánik Ivan , Janáčová Antónia , Šusterová Zuzana , Jakubík Tibor , Jánošková Nikoleta , Novák Pavel , Chlebo Robert 
Published: October 2012

AbstractSolid phase microextraction (SPME) followed by comprehensive two-dimensional gas chromatography coupled to a time-of-flight mass spectrometer (GC×GC-TOF-MS) was used to characterise volatile organic compounds in honeys of different botanical origins. Rape, sunflower, acacia, lime, raspberry, and phacelia honeys from Slovakia were studied in detail. Up to 900 compounds were detected at the given S/N ratio of 200. The poorest VOC profiles were found for acacia and rape honeys while lime honey showed the richest VOC composition. Approximately 100 compounds were present in all honeys studied, independently of their botanical origin. They belong to various chemical classes (hydrocarbons, alcohols, aldehydes and ketones, terpenes, benzene derivatives, and compounds containing heteroatoms). The compounds found in only one type of honey were also successfully identified.
Airlift reactor — membrane extraction hybrid system for aroma production
Authors: Mihaľ Mário , Gavin Sean , Markoš Jozef 
Published: October 2012

AbstractIn recent times, environmental production methods and organic products are increasingly sought after in food, perfume, and cosmetic industries, where the products are consumed or come into direct contact with humans. One such additive is 2-phenylethanol, an alcoholic aromatic rose like smell compound, mainly used as a flavor and aroma. 2-Phenylethanol can be produced by bioconversion from l-phenylalanine using Saccharomyces cerevisiae. This type of biotransformation is strongly limited by product inhibition which allows reaching the maximum concentration of 2-phenylethanol, 4 g L−1, in an ordinary batch, fed-batch, or chemostat bioreactor. The main aim of the presented work was to study the possible yield increase of 2-phenylethanol in a hybrid system consisting of membrane extraction performed by a hollow fiber membrane module immersed in the downcomer of an airlift reactor. Such hybrid system can be used to remove 2-phenylethanol from the fermentation medium and thus to overcome the product inhibition of biotransformation. In this paper, the influence of biomass on membrane extraction of 2-phenylethanol from aqueous solution in an airlift reactor to alkanes at different operational conditions was studied. The measured extraction kinetics was compared with the predictions obtained by a mathematical model. Hydrodynamics of the hybrid system was also studied.
Investigation of CO2 and ethylethanolamine reaction kinetics in aqueous solutions using the stopped-flow technique
Authors: Kierzkowska-Pawlak Hanna , Siemieniec Marta , Chacuk Andrzej 
Published: October 2012

AbstractKinetics of the reaction of CO2 and ethylethanolamine (EMEA) in aqueous solutions has been studied using the stopped-flow technique with conductivity detection. Measurements were performed at 288 K, 293 K, 298 K, and 303 K. Amine concentration ranged from 10 mol m−3 to 37.5 mol m−3. The termolecular mechanism was applied to interpret the kinetic data. In this mechanism, carbamate formation occurs in a single-step reaction without the formation of a zwitterion intermediate. An original method of analyzing the experimental data was proposed allowing the derivation of pseudo second order rate constants from the measured kinetic traces. Based on these values, the third order rate constants $$\left( {k_{H_2 O} } \right)$$ of the reaction of CO2, water, and EMEA were derived and correlated by the Arrhenius equation.
Attrition of dolomitic lime in a fluidized-bed reactor at high temperatures
Authors: Hartman Miloslav , Svoboda Karel , Pohořelý Michael , Šyc Michal , Jeremiáš Michal 
Published: October 2012

AbstractResults of an experimental study on the rate of attrition of lime catalyst/sorbent in a high-temperature, turbulent fluidized bed with quartz sand are presented. Batch measurements were conducted at 850°C in an electrically heated gasification reactor of the inner diameter of 5.1 cm with three samples of high-grade dolomitic lime of the particle size 450 μm, 715 μm, and 1060 μm, respectively. In addition to the influence of the particle size, the effect of operating (elapsed) time was investigated at different superficial gas velocities. Assuming that the attrition rate decreases exponentially with time, a simple mechanistic model, enabling the correlation of the measured experimental data, was developed. The course of the lime particles attrition is described as a function of the elapsed time, excess gas velocity, and particle size. The presented approach and the results might be applicable for the attrition of high-grade dolomitic lime, particularly in fluidized gasification of biomass.
Equilibrium and kinetics of protein binding on ion-exchange cellulose membranes with grafted polymer layer
Authors: Tatárová Ivana , Dreveňák Peter , Kosior Anna , Polakovič Milan 
Published: October 2012

AbstractThe performance of weak and strong anion- and cation-exchange membrane adsorbents with a grafted gel layer (Sartobind Q, D, S, and C) was investigated using six proteins: bovine serum albumin, human serum albumin, α-lactalbumin, β-lactoglobulin, lysozyme, and myoglobin. Static binding experiments were used to assess the effect of pH and buffer concentration and to determine the adsorption isotherms for selected membrane/protein combinations. The equilibrium data were duly described either by the Langmuir or Freundlich isotherms. Dynamic binding experiments were carried out for the same membrane/protein combinations in a broad range of linear flow velocity. Both the dynamic binding capacity at 10 % breakthrough and the final binding capacity at complete breakthrough were independent of the flow velocity despite strong dispersion of the adsorption zone. A good match between the equilibrium data from static and dynamic experiments was obtained for the anion exchangers. The correlation between the dynamic binding capacity and protein molecule size was observed for the strong cation exchanger. This was due to the different accessibility of the gel layer for the protein molecules.
Pseudo-quantities, New Public Management and Human Judgement
Authors: Liedman Sven-Eric 
Published: October 2012

In this article I will introduce a new concept: pseudoquantities. A pseudo-quantity is a spurious quantity that purports to indicate the dimensions of something but is actually arbitrary and, if taken at face value, misleading. A real quantity informs us about the number, weight or velocity of something and is, in this respect, always more exact than even the most exhaustive verbal description. By contrast, a pseudo-quantity is less nuanced and less exact than a ellinformed and conscientious verbal evaluation.
The term pseudo-quantity is new, but the phenomenon is well known to researchers and has become the subject of a rapidly growing stream of literature.1 The new term would primarily be intended to provide insight into the on-going mechanisms and processes that underlie this phenomenon. Furthermore, this term has a critical potential that is urgently needed at a time when many individuals erroneously believe that pseudoquantities can be used to gain both time and perspective.
In the first part of the article, I will present the new concept and its background in the concepts of quality and quantity. The importance of this term is pertinent to the founding of New Public Management (NPM) in the public sector. NPM will be treated in the following section. I will specifically highlight how this process influences education and research. In the conclusion, I summarise my argument and provide insight regarding a possible alternative.
Diagnosis and Treatment of Sports-Related Traumatic Brain Injury
Authors: Victoroff Jeff , Baron David 
Published: October 2012

CME Educational Objectives

1.
Understand the history of traumatic brain injury in sport.

2.
Learn proposed etiologic factors of sports-related traumatic brain injury (TBI).

3.
Appreciate current diagnostic formulations of sports TBI.

“For some time fight fans and promoters have recognized a peculiar condition occurring among prize fighters which, in ring parlance, they speak of as ‘punch drunk.’”
1
So begins Harrison Martland’s seminal 1928 article in the
Journal of American Medicine
, introducing physicians to the indisputable observation that some participants in sports suffer not just acute head injuries such as concussions or subdural hematomas, but persistent neuropsychiatric symptoms.
Treatment Considerations for the ADHD-Affected Athlete
Authors: Conant-Norville David 
Published: October 2012

CME Educational Objectives

1.
Review the unique challenges for the ADHD-affected athlete in childhood, adolescence, and adulthood.

2.
Become familiar with research on nonpharmacologic treatment strategies for the ADHD-affected child, including the use of exercise and sport.

3.
Learn what is needed to provide comprehensive care for the ADHD-affected athlete through transition from childhood to the elite adult stage.

Attention-deficit/hyperactivity disorder is one of the best researched disorders in medicine. The symptom cluster that defines this disorder was first identified in children, and subsequently in adolescents and adults.
Characteristics of seizure frequency among Malaysian children diagnosed with structural– metabolic epilepsy
Authors: Salih Muhannad RM , Bahari Mohd Baidi , Ahmad Hassali Mohamed Azmi , Shafie Asrul Akmal , Al-lela Omer Qutaiba B , Abd Arwa Y , Ganesan Vigneswari M 
Published: October 2012

ABSTRACT
Introduction: Seizure-free patients or substantial reduction in seizure frequency are the most important outcome measures in the management of epilepsy. The study aimed to evaluate the patterns of seizure frequency and its relationship with demographics, clinical characteristics, and outcomes. Materials and Methods: A retrospective cohort study was conducted at the Pediatric Neurology Clinic, Hospital Pulau Pinang. Over a period of 6 months, the required data were extracted from the medical records using a pre-designed data collection form. Results: Seizure frequency showed no significant association with patient’s demographics and clinical characteristic. However, significant reduction in seizure frequency from the baseline to the last follow-up visit was only seen in certain subgroups of patients including Malays, females, patients <4 years of age, patients with global developmental delay/intellectual disability, and patients with focal seizure. There was no significant association between seizure frequency and rate of adverse events. Polytherapy visits were associated with higher seizure frequency than monotherapy visits (27.97 ± 56.66, 10.94 ± 30.96 attack per month, respectively) (P < 0.001). There was a clear tendency to get antiepileptic drugs used at doses above the recommended range in polytherapy (8.4%) rather than in monotherapy (1.4%) visits (P < 0.001). A significant correlation was found between seizure frequency and number of visits per patient per year (r = 0.450, P < 0.001). Conclusion: Among children with structural–metabolic epilepsy, Malays, females, patients <4 years of age, patients with global developmental delay/intellectual disability and patients manifested with focal seizure are more responsive antiepileptic drug therapy than the other subgroups of patients.
Anthropometric parameters as indicators of metabolic derangements in schizophrenia patients stabilized on olanzapine in an Indian rural population
Authors: Rout Jayanta Kumar , Dasgupta Anindya , Singh Om Prakash , Banerjee Ushasi , Das Brahmarshi 
Published: October 2012

ABSTRACT
Context: For any given body mass, Asian Indians have higher central obesity than Europeans. A periodic measurement of body mass index (BMI) and waist hip ratio (WHR) is practically more feasible than other parameters of metabolic syndrome by repeated blood collection. However, few studies are available on the relative importance of BMI and WHR as markers of dyslipidemia and insulin resistance in schizophrenia patients stabilized on second generation antipsychotics in Indian population. Aim: We conducted the present study on such patients to examine whether BMI or WHR can better predict dyslipidemia and insulin resistance in these patients in a rural area. Settings and Design: The study was a hospital based case control study under rural settings on 38 schizophrenia patients stabilized on olanzapine and 30 matched controls. Materials and Methods: Fasting concentrations of blood glucose, lipid parameters and serum insulin were assessed. Data for Homeostatic model for assessment of insulin resistance (HOMAIR), BMI, and WHR were obtained to assess the insulin resistance, overall body fat distribution and abdominal fat dispensation respectively. Statistical analysis used: ‘t’ test was performed to assay any difference in corresponding mean values between cases and controls. Dependence of HOMA-IR on key parameters was assessed by analysis of co-variance (ANCOVA) study. Results: Cases exhibited significantly higher values for HOMA-IR, serum triglyceride and low density lipoprotein cholesterol (LDLc) with a significantly lower high density lipoprotein cholesterol (HDLc) level. ANCOVA study reflected that irrespective of age and sex, HOMA-IR was dependent on serum triglyceride level and WHR (F=8.3 and 5.7 respectively, P<0.05), but not on BMI (F<0.001, P=0.997). Conclusions: Central obesity could be more closely associated with the pathogenesis of prediabetic state in our case group. So, WHR is a better anthropometric parameter than BMI for an early assessment of insulin resistance and dyslipidemia in schizophrenia patients stabilized on olanzapine in our region.
Investigation of in vitro cytotoxicity of the redox state of ionic iron in neuroblastoma cells
Authors: Singh Ajay Vikram , Vyas Varun , Montani Erica , Cartelli Daniele , Parazzoli Dario , Oldani Amanda , Zeri Giulia , Orioli Elisa , Gemmati Donato , Zamboni Paolo 
Published: October 2012

ABSTRACT
Background: there is an intimate relation between transition metals and cell homeostasis due to the physiological necessity of metals in vivo. Particularly, iron (ferrous and ferric state) is utilized in many physiological processes of the cell but in excess has been linked with negative role contributing in many neurodegenerative processes. Objective: the aim of this study was to investigate which oxidation state of ionic iron (Ferrous (II) versus Ferric (III)) is more toxic to neuronal cells (SHSY5Y). Materials and Methods: The neuroblastoma (SHSY5Y) cells were exposed to varying concentration of ferric and ferrous iron. Morphological studies using immunofluorescence staining and microscopic analysis as confirmed by intracellular glutathione (GSH) test demonstrated oxidative stress to cells in iron microenvironment. In addition, MTT assay was performed to evaluate the viability and metabolic state of the cells. Results: the results showed that ferrous form has significantly higher toxicity compared to the ferric ionic state of higher concentration. In addition, microscopic analysis shows cell fenestration at higher concentrations and swelling at intermediate ferric dosages as demonstrated by atomic force microscopy (AFM). Interestingly, the addition of a differentiation inducing factor, trans-retinoic rcid (RA) retains significant viability and morphological features of the cells irrespective of the ionic state of the iron. AFM images revealed clustered aggregates arising from iron chelation with RA. Conclusions: the results indicate that Fe (II) has more toxic effects on cells. In addition, it could be an interesting finding with respect to the antioxidant properties of RA as a chelating agent for the neurodegenerative therapeutics.
Intracranial meningiomas managed at Memfys hospital for neurosurgery in Enugu, Nigeria
Authors: Mezue Wilfred C , Ohaegbulam Samuel C , Ndubuisi Chika C , Chikani Mark C , Achebe David S 
Published: October 2012

ABSTRACT
Introduction: The epidemiology and pathology of meningioma in Nigeria are still evolving and little has been published about this tumor in Nigeria, especially in the southeast region. The aim of this paper is to compare the characteristics of intracranial meningioma managed in our center with the pattern reported in the literature worldwide. Materials and Methods: Retrospective analysis of prospectively recorded data of patients managed for intracranial meningioma between January 2002 and December 2010 at a Private neurosurgery Hospital in Enugu, Nigeria. We excluded patients whose histology results were inconclusive. Results: Meningiomas constituted 23.8% of all intracranial tumors seen in the period. The male to female ratio was 1:1.1. The peak age range for males and females were in the fifth and sixth decades, respectively. The most common location is the Olfactory groove in 26.5% of patients followed by convexity in 23.5%. Presentation varied with anatomical location of tumor. Patients with olfactory groove meningioma (OGM) mostly presented late with personality changes and evidence of raised ICP. Tuberculum sellar and sphenoid region tumors presented earlier with visual impairment with or without hormonal abnormalities. Seizures occurred in 30.9% of all patients and in 45% of those with convexity meningiomas. Only 57.4% of the patients were managed surgically and there was no gender difference in this group. WHO grade1 tumors were the most common histological types occurring in 84.6%. One patient had atypical meningioma and two had anaplastic tumors. Conclusion: The pattern of meningioma in our area may have geographical differences in location and histology. Childhood meningioma was rare.
Unilateral contiguous two level thoracic ossified hypertrophied facet joints with compressive myelopathy
Authors: Thotakura Amit Kumar , Patibandla Mohana Rao , Panigrahi Manas Kumar , Marabathina Nageswara Rao 
Published: October 2012

ABSTRACTOssified hypertrophy of the facet joints in the thoracic region is very uncommon. We present a rare case of thoracic unilateral ossified hypertrophied facet joints with compressive myelopathy in a patient with scoliosis. The diagnosis is made with computed tomography and magnetic resonance imaging studies of the dorsal spine. Decompressive laminectomy and medial facetectomy was performed. Patient improved neurologically to normal status within 2 months. We present the review of the literature on the facet joint hypertrophy producing dorsal myelopathy.
Unusual complications of ventriculo peritoneal shunt surgery
Authors: Teegala Ramesh , Kota Laxmi Prasanna 
Published: October 2012

ABSTRACTVentriculo peritoneal (VP) shunt surgery is one of the common neurosurgical procedures employed in the management of hydrocephalus. Numerous complications related to this procedure are reported in the literature. Peritoneal catheterrelated complications are the usual causes of the shunt malfunction. We report three unusual cases of peritoneal shunt catheter migration in children. Two cases are of anal and one vaginal extrusion. Possible mechanisms of migration and management strategies were discussed.
Choroid plexus papilloma of the fourth ventricle in a septuagenarian
Authors: Umredkar Alok A. , Chhabra Rajesh , Bal Aman , Das Ashim 
Published: October 2012

ABSTRACTChoroid plexus papillomas (CPP) are most commonly found in children and rarely in adult. A very few cases are reported in geriatric population. We present a case of 72-year-old man with posterior fossa lesion operated with provisional diagnosis of metastasis, but turn out to be CPP.
Determination of Some Heavy Metal Pollutants in Sediments of the Seybouse River in Annaba, Algeria
Authors: Louhi Achour , Hammadi Atika , Achouri Mabrouka 
Published: October 2012

This study was conducted in order to fight against pollution of the environment. The study concerns river sediment of the Seybouse River in northeastern Algeria. Northeastern Algeria is known for its various industries (steel, fertilizer, metal processing, etc), and the sediment deposited by the Seybouse River, is probably polluted by heavy metals. For this study, we used two protocols of digestion of sediments, the first, using a mixture of hydrofluoric acid and perchloric acid, and the second, using aqua regia. The comparison of these two protocols will help us to find the best solubilization and thus facilitate the extraction and determination of heavy metals in sediment. Before determining the concentration of some heavy metals (Fe, Zn, Mn, Sn, Ni, Cr, Pb and Cu), we first analyzed parameters of sediments such as pH and organic matter. We used atomic absorption spectrometry (AAS) to measure these heavy metals. The functional groups characteristic of organic matter and particularly clays were identified by infrared spectroscopy. The average concentrations of metals exceeded acceptable standards for sediment pollution with heavy metals. Maximum concentrations in mg/kg respectively of the elements studied (Fe, Zn, Mn, Sn, Ni, Cr, Pb and Cu) were, respectively, 2460.20 ± 74.8; 1140.65 ± 38.2; 3.60 ± 1.2; 1.20 ± 0.5; 16.80 ± 2.6; 9.50 ± 3.2; 476.31 ± 21.6 and 145.15 ± 35.2. These results clearly show that the sediments deposited by the Seybouse River are heavily polluted.