bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pilot Plant Studies on Nox Removal Via No Ozonation and Absorption
Authors: Kordylewski Włodzimierz , Jakubiak Maciej , Hardy Tomasz 
Published: July 2013

Abstract
The results of experimental investigations on the removal of NOx from gases applying ozone as the oxidizing agent and the absorption of higher nitrogen oxides in the sodium hydroxide solutions are presented. The experiment was conducted using a pilot plant installation with the air flow rate 200 m3/h, being a prototype of a boiler flue gas duct and a FGD scrubber. It was shown that in the range of [NOref] = 50 ÷ 250 ppm the mechanism of NO ozonation depends on the molar ratio X = O3/NOref: for X ≤ 1.0 oxidation of NO to NO2 predominates and NO2 is poorly absorbed, for X >> 1.0 NO2 undergoes further oxidation to N2O5, which is efficiently absorbed in the scrubber. The stoichiometric molar ratio of complete conversion of NO into N2O5 is X = 1.5, in these studies to reach the effectiveness η ≥ 90% the molar ratio X was much higher (2.75).
Role of Landfill Cover in Reducing Methane Emission
Authors: Cao Yucheng , Staszewska Ewelina 
Published: July 2013

Abstract
Uncontrolled emissions of landfill gas may contribute significantly to climate change, since its composition represents a high fraction of methane, a greenhouse gas with 100- year global warming potential 25 times that of carbon dioxide. Landfill cover could create favourable conditions for methanotrophy (microbial methane oxidation), an activity of using bacteria to oxidize methane to carbon dioxide. This paper presents a brief review of methanotrophic activities in landfill cover. Emphasis is given to the effects of cover materials, environmental conditions and landfill vegetation on the methane oxidation potential, and to their underlying effect mechanisms. Methanotrophs communities and methane oxidation kinetics are also discussed. Results from the overview suggest that well-engineered landfill cover can substantially increase its potential for reducing emissions of methane produced in landfill to the atmosphere.
Foraminiferal and radiolarian biostratigraphy of the youngest (Late Albian through Late Cenomanian) sediments of the Tatra massif, Central Western Carpathians
Authors: Bąk Krzysztof , Bąk Marta 
Published: July 2013

Abstract
Bąk, K. and Bąk M. 2013. Foraminiferal and radiolarian biostratigraphy of the youngest (Late Albian through Late Cenomanian) sediments of the Tatra massif, Central Western Carpathians. Acta Geologica Polonica, 63 (2), 223-237. Warszawa.
The foraminiferal and radiolarian biostratigraphy of selected sections of the Zabijak Formation, the youngest sediments of the Tatra massif (Central Western Carpathians), have been studied. Benthic foraminifers, mainly agglutinated species, occur abundantly and continuously throughout the studied succession, while planktic foraminifers are generally sparse. Five planktic and two benthic foraminiferal zones have been recognized. The marly part of the Zabijak Formation comprises the Pseudothalmanninella ticinensis (Upper Albian) through the Rotalipora cushmani (Upper Cenomanian) planktic foraminiferal zones, and the Haplophragmoides nonioninoides and Bulbobaculites problematicus benthic foraminiferal zones. The radiolarians were recognized exclusively in the Lower Cenomanian part of the formation.
Anisotropy properties of the quartzite from Jegłowa, Poland
Authors: Marciniszyn Tomasz , Sieradzki Adam 
Published: July 2013

Abstract
Marciniszyn, T. and Sieradzki, A. 2013. Anisotropy properties of the quartzite from Jegłowa, Poland. Acta Geologica Polonica, 63 (2), 265-269. Warszawa.
Results of the dielectric spectroscopy, thermal and dilatometric measurements of the quartzite rock are presented. Based on the dielectric measurements performed in a wide range of the frequency (101 - 5 ・ 107 Hz) at temperature of 300K the piezoresonance in quartzite was found. A chemical composition of quartzite was examined by XRF. The anisotropy of the thermal conductivity was observed. The thermal conductivity coefficient changes from 13.2 [W/Km] to 5.6 [W/Km] for the [100] and [001] direction, respectively. Based on the thermal expansion measurement the thermal expansion coefficient of quartzite was estimated to be α Q = 8.0 ・ 10-6 [K-1 ] ±0.7 ・ 10-6 .
Congenital bilateral hydronephrosis diagnosed before birth, associated with vesicoureteral reflux, highlighted by urinary tract infection at the he age of 2 months - case presentation
Authors: Bădescu Anca Gabriela , Tica C. , Mihai Larisia 
Published: July 2013

Abstract
Vesicoureteral reflux is characterized by the retrograde flow of urine from the bladder to the kidneys. Vesicoureteral reflux may be associated with urinary tract infection, hydronephrosis, and abnormal kidney development (renal dysplasia). Hydronephrosis - literally “water inside the kidney” - refers to distension and dilatation of the renal pelvis and calyces, usually caused by obstruction of the free flow of urine from the kidney. Untreated, it leads to progressive atrophy of the kidney. In cases of hydroureteronephrosis, there is distention of both the ureter and the renal pelvis and ureteres.
However, in the current era, hydronephrosis that is evident on fetal ultrasonography often heralds a ureteral abnormality. Hydronephrosis is defined as dilatation of the renal pelvis and/or calyces. Vesicoureteral reflux may present before birth as prenatal hydronephrosis, an abnormal widening of the ureter or with a urinary tract infection or acute pyelonephritis.
The authors present a case of bilateral VUR of IVth grade associated with congenital hydronephrosis of IIIrd grade, diagnosed before birth with bilateral hydronephrosis, and taken into evidence at 2 months when he was first diagnosed with urinary tract infection. Positive diagnosis was facilitated by laboratory investigations (urine analysis, urine culture, voiding cystourethrography, static renal scintigraphy).
Operating Characteristics of the A8c22 Engine in an Sm42 Locomotive Fuelled by Mixtures of Rme with Diesel Fuel
Authors: Cisek Jerzy , Mruk Andrzej 
Published: July 2013

Shrnutí
Vyzkum vyznamnějši rozšiřeni použiti obnovitelnych zdrojů (bio-paliv) ve spalovacich motorech trva již vice než dvacet let. Jednim z vysledků je i směrnice EU, ktera nařizuje, že v cilovem roce 2020 by mělo byt přidavano až 20 % biopaliv do ropnych paliv. Ve středni Evropě, s ohledem na plodiny rostouci v teto klimaticke zoně, je touto přiměsi zejmena řepkovy olej a jeho metyl estery. Proto se vyzkum tyka těchto paliv.
Zkušebnim motorem byl vidlicovy osmivalec s objemem jednoho valce 10,2 dm3, typove značeni 8C22, největši vykon je 530 kW při jmenovitych otačkach 1000 1/min. Tento motor je mimo jine použivan v posunovacich lokomotivach SM42. Po předchozich diagnostickych průzkumech bylo použita čtyři paliva: standardni nafta (B0), to same palivo se 40 % přiměsi (B40) a 50 % RME - metyl ester řepkoveho oleje (B50). Nasledně bylo zkoušeno palivo B50+ se specialnimi aditivy. Vyzkum energetickych parametrů a toxicity vyfukovych plynů byl provaděn na motoru zabudovanem do lokomotivy SM42. Zkoušky byly provaděny podle metodiky 2004/26/WE a UIC 624 Chart.
Bylo zjištěno, že narůst podilu RME (metylesteru řepkoveho oleje) až do hodnoty 50 % v naftě, zvyšuje hodnotu hodinove spotřeby až o 10 % při volnoběhu a až o 15 % při plnem zatiženi motoru oproti motorove naftě. Dale bylo zjištěno, že koncentrace CO ve vyfukovych plynech s rostouci koncentraci esteru v palivu při volnoběhu, při středni zatěži se neměni a naopak při plne zatěži motoru koncentrace CO klesaji. Pro malou a středni zatěž byl vypozorovan pokles HC. Při volnoběhu bylo zjištěno sniženi emisi NOx při narůstu koncentrace RME. To je pro posunovaci lokomitivy vyznamne, protože často pracuji při volnoběhu. Pro zkoušena paliva, byla stanoveny odolnost vůči karbonizaci vstřikovačů a některe tribologicke charakteristiky. Paliva obsahujici do 40 % RME vyhovuji kriteriu vzniku karbonizace.
Tractor Pulling Tests Supported by Ecu Data Reading
Authors: Čupera Jiří , Sedlák Pavel , Bauer František , Fajman Martin 
Published: July 2013

Shrnutí
Članek popisuje možnost využiti dat ze sběrnice CAN nebo ISO-BUS pro tahove zkoušky traktoru. Zkoušeni sestavalo z polnich a laboratornich zkoušek, před vlastnim polnim měřenim byl motor zkoušen na dynamometru. Parametry odečtene ze sběrnice CAN byly validovany externimi snimači a byla vyhodnocena jejich chyba. Na zakladě měřeni bylo shledano, že chyba prezentovaneho zatiženi odečteneho ze sběrnice CAN je velmi vyznamna. Pro zpřesněni teto hodnoty je nutne vytvořit regresni funkci. Model byl dale ověřen a byla vypočtena nejistota. Bylo shledano, že pro zahrnuti parametrů sběrnice CAN do testovacich procedur je nutne provest předchozi statistickou analyzu parametrů.
The relationship between neuroticism, coping styles and emotions in women with Mayer-Rokitansky-Küster-Hauser syndrome: A moderated mediation analysis
Authors: Bargiel-Matusiewicz Kamilla , Kroemeke Aleksandra , Polańska Katarzyna 
Published: July 2013

Abstract Objectives
Study participants are 46 women (age 23.48 ± 4.88 years) with Mayer-Rokitansky-Küster-Hauser (M-R-K-H) syndrome. Occurrence of the M-R-K-H syndrome is one in 4000-5000 female children. It was investigated (a) whether coping styles mediate the effect of neuroticism (N) on positive (PA) and negative (NA) affect, and (b) whether this mediation is moderated by the level of N as well as (c) whether this moderated mediation is moderated by length of awareness of illness. Methods: Neuroticism, coping style as well as positive and negative emotions were assessed using the Polish version of NOE-FFI, CISS and Scale of Emotional State. Results: Emotion coping style fully (for PA) or partly (for NA) mediated the relationship between neuroticism and emotions and these mediations were moderated by the level of N. Additionally, direct effect of neuroticism on NA was moderated by the time for which a patient has been aware of the disease. Conclusions: The level of neuroticism and the length of illness are important factors for the psychological functioning of women with M-R-K-H Syndrome. In women with medium and high neuroticism, (positive) effect of N on NA was indirect and also direct - but only in those who have been aware of the diagnosis for 6 years or more. Relations with positive emotions were different: the indirect effect (negative) was observed only in women with a moderate and low neuroticism.
Endothelial Dysfunction in Diabetes – Clasic Sources of Vascular Oxidative Stress (Nadph Oxidases, Enos Uncoupling and Xanthine Oxidase)
Authors: Munteanu Mircea , Sturza Adrian , Schiller Adalbert , Timar Romulus 
Published: July 2013

Abstract Cardiovascular disease is the leading cause of disease / mortality worldwide. It is generally accepted that increased production of reactive oxygen species (ROS) has an important role in cardiovascular pathology, contributing to endothelial dysfunction and to the aggravation of atherosclerosis. Among all cardiovascular risk factors, diabetes mellitus is one of the most important. The worldwide prevalence of diabetes has increased rapidly even in developing countries, doubling the combined risk of cardiovascular events in patients with hypertension. In diabetes, increased reactive oxygen species (ROS) production leads to endothelial dysfunction, recognized by the presence of impaired vascular relaxation, increased vascular smooth muscle cells growth and hypertrophy, all together contributing to atherosclerotic plaque formation. On this basis, the vascular endothelium has emerged as a therapeutic target, with the aim to improve systemic metabolic state by improving vascular function. In this review we have focused on the most important sources of reactive oxygen species generated by vascular endothelium in diabetic patients (NADPH Oxidases, eNOS uncoupling, Xanthine oxidase). The importance of oxidative stress in mediating the vascular complications of diabetes is supported by studies showing that antioxidant therapy correct the vascular function in humans or in experimental models of diabetes. Therefore, understanding the physiological mechanisms involved in vascular disorders resulting from hyperglycemia is essential for the proper use of available therapeutic resources.
The Lindelöf principle in ℂn
Authors: Dovbush Peter 
Published: July 2013

AbstractLet D be a bounded domain in ℂn. A holomorphic function f: D → ℂ is called normal function if f satisfies a Lipschitz condition with respect to the Kobayashi metric on D and the spherical metric on the Riemann sphere ̅ℂ. We formulate and prove a few Lindelöf principles in the function theory of several complex variables.
Clinical, radiological, and pathological features of 26 intracranial and intraspinal malignant peripheral nerve sheath tumors
Authors: Ren Xiaohui , Wang Junmei , Hu Mengqing , Jiang Haihui , Yang Jun , Jiang Zhongli 
Published: July 2013

Object
Intracranial and intraspinal malignant peripheral nerve sheath tumors (MPNSTs) are rarely reported because of their extremely low incidence. Knowledge about these tumors is poor. In this study the authors aimed to analyze the incidence and clinical, radiological, and pathological features of intracranial and intraspinal MPNSTs.

Methods
Among 4000 cases of intracranial and intraspinal PNSTs surgically treated between 2004 and 2011 at Beijing Tiantan Hospital, cases of MPNST were chosen for analysis and were retrospectively reviewed. To determine which parameters were associated with longer progression-free survival (PFS) and overall survival (OS), statistical analysis was performed.

Results
Malignant PNSTs accounted for 0.65% of the entire series of intracranial and intraspinal PNSTs. Twenty-four (92.3%) of these 26 MPNSTs were primary. Radiologically, 26.9% (7 of 26) of the MPNSTs were misdiagnosed as nonschwannoma diseases. Twenty-one patients were followed up for 1.5 to 102 months after surgery. Twelve patients experienced tumor recurrence, and median PFS was 15.0 months. The 2- and 3-year PFS rates were 47.7% and 32.7%, respectively. Five patients died of tumor recurrence, and median OS was not available. The 2- and 3-year OS rates were 74.7% and 64.0%, respectively. Univariate analysis revealed that female sex, total tumor removal, and primary MPNSTs were significantly associated with a better prognosis. Multivariate analysis revealed that only total removal was an independent prognostic factor for both PFS and OS.

Conclusions
Malignant PNST within the skull or spinal canal is a rare neoplasm and is seldom caused by benign schwannomas. Radiologically, intracranial or intraspinal MPNST should be differentiated from meningioma, chordoma, fibrous dysplasia of bone, and ear cancer. Total resection whenever possible is necessary for the prolonged survival of patients, especially males.
Gamma Knife surgery anterior capsulotomy for severe and refractory obsessive-compulsive disorder
Authors: Sheehan Jason P. , Patterson Gregory , Schlesinger David , Xu Zhiyuan 
Published: July 2013

Object
Obsessive-compulsive disorder (OCD) is a challenging psychiatric condition associated with anxiety and ritualistic behaviors. Although medical management and psychiatric therapy are effective for many patients, severe and extreme cases may prove refractory to these approaches. The authors evaluated their experience with Gamma Knife (GK) capsulotomy in treating patients with severe OCD.

Methods
A retrospective review of an institutional review board–approved prospective clinical GK database was conducted for patients treated for severe OCD. All patients were evaluated preoperatively by at least one psychiatrist, and their condition was deemed refractory to pharmacological and psychiatric therapy.

Results
Five patients were identified. Gamma Knife surgery with the GK Perfexion unit was used to target the anterior limb of the internal capsule bilaterally. A single 4-mm isocenter was used; maximum radiation doses of 140–160 Gy were delivered. All 5 patients were preoperatively and postoperatively assessed for clinical response by using both subjective and objective metrics, including the Yale-Brown Obsessive Compulsive Scale (YBOCS); 4 of the 5 patients had postoperative radiological follow-up. The median clinical follow-up was 24 months (range 6–33 months). At the time of radiosurgery, all patients had YBOCS scores in the severe or extreme range (median 32, range 31–34). At the last follow-up, 4 (80%) of the 5 patients showed marked clinical improvement; in the remaining patient (20%), mild improvement was seen. The median YBOCS score was 13 (range 12–31) at the last follow-up. Neuroimaging studies at 6 months after GK treatment demonstrated a small area of enhancement corresponding to the site of the isocenter and some mild T2 signal changes in the internal capsule. No adverse clinical effects were noted from the radiosurgery.

Conclusions
For patients with severe OCD refractory to medications and psychiatric therapy, GK capsulotomy afforded clinical improvement. Further study of this approach seems warranted.
A standardized nomenclature for cervical spine soft-tissue release and osteotomy for deformity correction
Authors: Ames Christopher P. , Smith Justin S. , Scheer Justin K. , Shaffrey Christopher I. , Lafage Virginie , Deviren Vedat , Moal Bertrand , Protopsaltis Themistocles , Mummaneni Praveen V. , Mundis Gregory M. , Hostin Richard , Klineberg Eric , Burton Douglas C. , Hart Robert , Bess Shay , Schwab Frank J. , _ _ 
Published: July 2013

Object
Cervical spine osteotomies are powerful techniques to correct rigid cervical spine deformity. Many variations exist, however, and there is no current standardized system with which to describe and classify cervical osteotomies. This complicates the ability to compare outcomes across procedures and studies. The authors' objective was to establish a universal nomenclature for cervical spine osteotomies to provide a common language among spine surgeons.

Methods
A proposed nomenclature with 7 anatomical grades of increasing extent of bone/soft tissue resection and destabilization was designed. The highest grade of resection is termed the major osteotomy, and an approach modifier is used to denote the surgical approach(es), including anterior (A), posterior (P), anterior-posterior (AP), posterior-anterior (PA), anterior-posterior-anterior (APA), and posterior-anterior-posterior (PAP). For cases in which multiple grades of osteotomies were performed, the highest grade is termed the major osteotomy, and lower-grade osteotomies are termed minor osteotomies. The nomenclature was evaluated by 11 reviewers through 25 different radiographic clinical cases. The review was performed twice, separated by a minimum 1-week interval. Reliability was assessed using Fleiss kappa coefficients.

Results
The average intrarater reliability was classified as “almost perfect agreement” for the major osteotomy (0.89 [range 0.60–1.00]) and approach modifier (0.99 [0.95–1.00]); it was classified as “moderate agreement” for the minor osteotomy (0.73 [range 0.41–1.00]). The average interrater reliability for the 2 readings was the following: major osteotomy, 0.87 (“almost perfect agreement”); approach modifier, 0.99 (“almost perfect agreement”); and minor osteotomy, 0.55 (“moderate agreement”). Analysis of only major osteotomy plus approach modifier yielded a classification that was “almost perfect” with an average intrarater reliability of 0.90 (0.63–1.00) and an interrater reliability of 0.88 and 0.86 for the two reviews.

Conclusions
The proposed cervical spine osteotomy nomenclature provides the surgeon with a simple, standard description of the various cervical osteotomies. The reliability analysis demonstrated that this system is consistent and directly applicable. Future work will evaluate the relationship between this system and health-related quality of life metrics.
Long-term quality of life in children treated for posterior fossa brain tumors
Authors: Kulkarni Abhaya V. , Piscione Janine , Shams Iffat , Bouffet Eric 
Published: July 2013

Object
In the face of increasing survival, quality of life (QOL) has become an important indicator of treatment success in children with posterior fossa brain tumors (PFBTs). The authors' objective was to assess the long-term QOL in survivors of PFBT.

Methods
The authors conducted a cross-sectional study of children who, between birth and age 18 years at diagnosis, had previously been treated at their institution for a PFBT. At the time of assessment for this study, children were between 5 and 19 years old and had received standard treatment for PFBT ending at least 6 months before the assessment. The QOL was measured with the Pediatric Quality of Life Inventory (PedsQL) generic score scales and the Health Utilities Index Mark 3 (HUI3). Multivariate analyses were used to assess several variables (patient related, treatment related, and socioeconomic) for association with QOL.

Results
A total of 62 children participated in the study (median age at assessment 11.9 years, interquartile range [IQR] 7.8–14.8, and median age at tumor diagnosis of 4.9 years, IQR 2.5–6.9). Median time since active treatment for their PFBT was 5.2 years (IQR 2.4–10.1). Tumor types included cerebellar pilocytic astrocytoma (45.2%), medulloblastoma (30.6%), ependymoma (11.3%), and brainstem astrocytoma (11.3%). Adjuvant therapy included chemotherapy (40.3%) or radiotherapy (14.5% focal and 21.0% craniospinal radiotherapy). Permanent treatment for hydrocephalus was required in 38.7% of the patients. Tumors recurred in 11.3%, requiring repeat treatment in these patients. The median HUI3 utility score was 0.91 (IQR 0.71–1.00) and the median PedsQL total score was 78.3 (IQR 64.1–92.4). Only the following variables were significantly associated with decreased QOL in multivariable model testing (all p < 0.05): need for permanent hydrocephalus treatment, large ventricle size, decreased family functioning, and lower family income.

Conclusions
As a group, long-term survivors of pediatric PFBT appear to have QOL indicators that are similar to those of the general population, although a reasonable minority of patients experience poor outcomes. Although several confounding variables likely remain in this retrospective study, important associations with QOL include the presence of hydrocephalus and socioeconomic factors. The study sample size, however, was limited and the presence of other important factors cannot be excluded.
Minimally invasive deformity correction: surgical technique
Authors: Chen Kevin S. , Than Khoi D. , LaMarca Frank , Park Paul 
Published: July 2013

This video details a minimally invasive treatment of symptomatic adult kyphoscoliosis. Both anterior and posterior approaches are used to obtain sagittal and coronal balance. In addition, improved lumbar lordosis is achieved to closely match the patient's pelvic incidence. The key steps for the lateral transpsoas procedure are detailed in the first portion of the video and include positioning, fluoroscopic localization, exposure with tubular retractor placement, interbody preparation and grafting, and closure. The second portion of the video shows positioning, fluoroscopic positioning/guidance, exposure for percutaneous pedicle screw placement, rod insertion, and closure.The video can be found here: http://youtu.be/cHkTMtSXZ8A.